Clarify one_file_system behavior in schema comment (#520).

Reviewed-on: borgmatic-collective/borgmatic#469

.drone.yml

@@ -1,54 +1,3 @@
----
-kind: pipeline
-name: python-3-6-alpine-3-9
-
-services:
-  - name: postgresql
-    image: postgres:11.9-alpine
-    environment:
-      POSTGRES_PASSWORD: test
-      POSTGRES_DB: test
-  - name: mysql
-    image: mariadb:10.3
-    environment:
-      MYSQL_ROOT_PASSWORD: test
-      MYSQL_DATABASE: test
-
-clone:
-  skip_verify: true
-
-steps:
-- name: build
-  image: alpine:3.9
-  pull: always
-  commands:
-    - scripts/run-full-tests
----
-kind: pipeline
-name: python-3-7-alpine-3-10
-
-services:
-  - name: postgresql
-    image: postgres:11.9-alpine
-    environment:
-      POSTGRES_PASSWORD: test
-      POSTGRES_DB: test
-  - name: mysql
-    image: mariadb:10.3
-    environment:
-      MYSQL_ROOT_PASSWORD: test
-      MYSQL_DATABASE: test
-
-clone:
-  skip_verify: true
-
-steps:
-- name: build
-  image: alpine:3.10
-  pull: always
-  commands:
-    - scripts/run-full-tests
----
 kind: pipeline
 name: python-3-8-alpine-3-13
 
@@ -63,6 +12,11 @@ services:
     environment:
       MYSQL_ROOT_PASSWORD: test
       MYSQL_DATABASE: test
+  - name: mongodb
+    image: mongo:5.0.5
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: root
+      MONGO_INITDB_ROOT_PASSWORD: test
 
 clone:
   skip_verify: true
@@ -82,9 +36,7 @@ clone:
 
 steps:
 - name: build
-  #image: plugins/docker
+  image: plugins/docker
-  # Temporary work-around for https://github.com/drone-plugins/drone-docker/pull/327
-  image: techknowlogick/drone-docker
   settings:
     username:
       from_secret: docker_username
@@ -94,5 +46,9 @@ steps:
     dockerfile: docs/Dockerfile
 
 trigger:
+  repo:
+    - borgmatic-collective/borgmatic
   branch:
     - master
+  event:
+    - push

.eleventy.js

@@ -36,6 +36,8 @@ module.exports = function(eleventyConfig) {
 
     eleventyConfig.addPassthroughCopy({"docs/static": "static"});
 
+    eleventyConfig.setLiquidOptions({dynamicPartials: false});
+
     return {
         templateFormats: [
           "md",

NEWS

@@ -1,4 +1,50 @@
-1.5.19.dev0
+1.5.25.dev0
+ * #516: Fix handling of TERM signal to exit borgmatic, not just forward the signal to Borg.
+ * #517: Fix borgmatic exit code (so it's zero) when initial Borg calls fail but later retries
+   succeed.
+ * Change Healthchecks logs truncation size from 10k bytes to 100k bytes, corresponding to that
+   same change on Healthchecks.io.
+
+1.5.24
+ * #431: Add "working_directory" option to support source directories with relative paths.
+ * #444: When loading a configuration file that is unreadable due to file permissions, warn instead
+   of erroring. This supports running borgmatic as a non-root user with configuration in ~/.config
+   even if there is an unreadable global configuration file in /etc.
+ * #469: Add "repositories" context to "before_*" and "after_*" command action hooks. See the
+   documentation for more information:
+   https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/
+ * #486: Fix handling of "patterns_from" and "exclude_from" options to error instead of warning when
+   referencing unreadable files and "create" action is run.
+ * #507: Fix Borg usage error in the "compact" action when running "borgmatic --dry-run". Now, skip
+   "compact" entirely during a dry run.
+
+1.5.23
+ * #394: Compact repository segments and free space with new "borgmatic compact" action. Borg 1.2+
+   only. Also run "compact" by default when no actions are specified, as "prune" in Borg 1.2 no
+   longer frees up space unless "compact" is run.
+ * #394: When using the "atime", "bsd_flags", "numeric_owner", or "remote_rate_limit" options,
+   tailor the flags passed to Borg depending on the Borg version.
+ * #480, #482: Fix traceback when a YAML validation error occurs.
+
+1.5.22
+ * #288: Add database dump hook for MongoDB.
+ * #470: Move mysqldump options to the beginning of the command due to MySQL bug 30994.
+ * #471: When command-line configuration override produces a parse error, error cleanly instead of
+   tracebacking.
+ * #476: Fix unicode error when restoring particular MySQL databases.
+ * Drop support for Python 3.6, which has been end-of-lifed.
+ * Add support for Python 3.10.
+
+1.5.21
+ * #28: Optionally retry failing backups via "retries" and "retry_wait" configuration options.
+ * #306: Add "list_options" MySQL configuration option for passing additional arguments to MySQL
+   list command.
+ * #459: Add support for old version (2.x) of jsonschema library.
+
+1.5.20
+ * Re-release with correct version without dev0 tag.
+
+1.5.19
  * #387: Fix error when configured source directories are not present on the filesystem at the time
    of backup. Now, Borg will complain, but the backup will still continue.
  * #455: Mention changing borgmatic path in cron documentation.

README.md

@@ -26,7 +26,6 @@ location:
     repositories:
         - 1234@usw-s001.rsync.net:backups.borg
         - k8pDxu32@k8pDxu32.repo.borgbase.com:repo
-        - user1@scp2.cdn.lima-labs.com:repo
         - /var/lib/backups/local.borg
 
 retention:
@@ -55,9 +54,9 @@ hooks:
 ```
 
 Want to see borgmatic in action? Check out the <a
-href="https://asciinema.org/a/203761" target="_blank">screencast</a>.
+href="https://asciinema.org/a/203761?autoplay=1" target="_blank">screencast</a>.
 
-<script src="https://asciinema.org/a/203761.js" id="asciicast-203761" async></script>
+<a href="https://asciinema.org/a/203761?autoplay=1" target="_blank"><img src="https://asciinema.org/a/203761.png" width="480"></a>
 
 borgmatic is powered by [Borg Backup](https://www.borgbackup.org/).
 
@@ -66,11 +65,11 @@ borgmatic is powered by [Borg Backup](https://www.borgbackup.org/).
 <a href="https://www.postgresql.org/"><img src="docs/static/postgresql.png" alt="PostgreSQL" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://www.mysql.com/"><img src="docs/static/mysql.png" alt="MySQL" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://mariadb.com/"><img src="docs/static/mariadb.png" alt="MariaDB" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+<a href="https://www.mongodb.com/"><img src="docs/static/mongodb.png" alt="MongoDB" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://healthchecks.io/"><img src="docs/static/healthchecks.png" alt="Healthchecks" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://cronitor.io/"><img src="docs/static/cronitor.png" alt="Cronitor" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://cronhub.io/"><img src="docs/static/cronhub.png" alt="Cronhub" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://www.pagerduty.com/"><img src="docs/static/pagerduty.png" alt="PagerDuty" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
-<a href="https://www.rsync.net/cgi-bin/borg.cgi?campaign=borg&adgroup=borgmatic"><img src="docs/static/rsyncnet.png" alt="rsync.net" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://www.borgbase.com/?utm_source=borgmatic"><img src="docs/static/borgbase.png" alt="BorgBase" height="60px" style="margin-bottom:20px;"></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 
 
@@ -92,14 +91,12 @@ development and hosting when you use these links to sign up. (These are
 referral links, but without any tracking scripts or cookies.)
 
 <ul>
- <li class="referral"><a href="https://www.rsync.net/cgi-bin/borg.cgi?campaign=borg&adgroup=borgmatic">rsync.net</a>: Cloud Storage provider with full support for borg and any other SSH/SFTP tool</li>
  <li class="referral"><a href="https://www.borgbase.com/?utm_source=borgmatic">BorgBase</a>: Borg hosting service with support for monitoring, 2FA, and append-only repos</li>
- <li class="referral"><a href="https://storage.lima-labs.com/special-pricing-offer-for-borgmatic-users/">Lima-Labs</a>: Affordable, reliable cloud data storage accessable via SSH/SCP/FTP for Borg backups or any other bulk storage needs</li>
 </ul>
 
-Additionally, [Hetzner](https://www.hetzner.com/storage/storage-box) has a
+Additionally, [rsync.net](https://www.rsync.net/products/borg.html) and
-compatible storage offering, but does not currently fund borgmatic
+[Hetzner](https://www.hetzner.com/storage/storage-box) have compatible storage
-development or hosting.
+offerings, but do not currently fund borgmatic development or hosting.
 
 ## Support and contributing
 

borgmatic/borg/compact.py

@@ -0,0 +1,41 @@
+import logging
+
+from borgmatic.execute import execute_command
+
+logger = logging.getLogger(__name__)
+
+
+def compact_segments(
+    dry_run,
+    repository,
+    storage_config,
+    local_path='borg',
+    remote_path=None,
+    progress=False,
+    cleanup_commits=False,
+    threshold=None,
+):
+    '''
+    Given dry-run flag, a local or remote repository path, and a storage config dict, compact Borg
+    segments in a repository.
+    '''
+    umask = storage_config.get('umask', None)
+    lock_wait = storage_config.get('lock_wait', None)
+    extra_borg_options = storage_config.get('extra_borg_options', {}).get('compact', '')
+
+    full_command = (
+        (local_path, 'compact')
+        + (('--remote-path', remote_path) if remote_path else ())
+        + (('--umask', str(umask)) if umask else ())
+        + (('--lock-wait', str(lock_wait)) if lock_wait else ())
+        + (('--progress',) if progress else ())
+        + (('--cleanup-commits',) if cleanup_commits else ())
+        + (('--threshold', str(threshold)) if threshold else ())
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+        + (('--debug', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
+        + (tuple(extra_borg_options.split(' ')) if extra_borg_options else ())
+        + (repository,)
+    )
+
+    if not dry_run:
+        execute_command(full_command, output_log_level=logging.INFO, borg_local_path=local_path)

borgmatic/borg/create.py

@@ -5,12 +5,13 @@ import os
 import pathlib
 import tempfile
 
+from borgmatic.borg import feature
 from borgmatic.execute import DO_NOT_CAPTURE, execute_command, execute_command_with_processes
 
 logger = logging.getLogger(__name__)
 
 
-def _expand_directory(directory):
+def expand_directory(directory):
     '''
     Given a directory path, expand any tilde (representing a user's home directory) and any globs
     therein. Return a list of one or more resulting paths.
@@ -20,7 +21,7 @@ def _expand_directory(directory):
     return glob.glob(expanded_directory) or [expanded_directory]
 
 
-def _expand_directories(directories):
+def expand_directories(directories):
     '''
     Given a sequence of directory paths, expand tildes and globs in each one. Return all the
     resulting directories as a single flattened tuple.
@@ -29,11 +30,11 @@ def _expand_directories(directories):
         return ()
 
     return tuple(
-        itertools.chain.from_iterable(_expand_directory(directory) for directory in directories)
+        itertools.chain.from_iterable(expand_directory(directory) for directory in directories)
     )
 
 
-def _expand_home_directories(directories):
+def expand_home_directories(directories):
     '''
     Given a sequence of directory paths, expand tildes in each one. Do not perform any globbing.
     Return the results as a tuple.
@@ -97,7 +98,7 @@ def deduplicate_directories(directory_devices):
     return tuple(sorted(deduplicated))
 
 
-def _write_pattern_file(patterns=None):
+def write_pattern_file(patterns=None):
     '''
     Given a sequence of patterns, write them to a named temporary file and return it. Return None
     if no patterns are provided.
@@ -112,7 +113,19 @@ def _write_pattern_file(patterns=None):
     return pattern_file
 
 
-def _make_pattern_flags(location_config, pattern_filename=None):
+def ensure_files_readable(*filename_lists):
+    '''
+    Given a sequence of filename sequences, ensure that each filename is openable. This prevents
+    unreadable files from being passed to Borg, which in certain situations only warns instead of
+    erroring.
+    '''
+    for file_object in itertools.chain.from_iterable(
+        filename_list for filename_list in filename_lists if filename_list
+    ):
+        open(file_object).close()
+
+
+def make_pattern_flags(location_config, pattern_filename=None):
     '''
     Given a location config dict with a potential patterns_from option, and a filename containing
     any additional patterns, return the corresponding Borg flags for those files as a tuple.
@@ -128,7 +141,7 @@ def _make_pattern_flags(location_config, pattern_filename=None):
     )
 
 
-def _make_exclude_flags(location_config, exclude_filename=None):
+def make_exclude_flags(location_config, exclude_filename=None):
     '''
     Given a location config dict with various exclude options, and a filename containing any exclude
     patterns, return the corresponding Borg flags as a tuple.
@@ -187,6 +200,7 @@ def create_archive(
     repository,
     location_config,
     storage_config,
+    local_borg_version,
     local_path='borg',
     remote_path=None,
     progress=False,
@@ -204,16 +218,20 @@ def create_archive(
     '''
     sources = deduplicate_directories(
         map_directories_to_devices(
-            _expand_directories(
+            expand_directories(
                 location_config['source_directories']
                 + borgmatic_source_directories(location_config.get('borgmatic_source_directory'))
             )
         )
     )
 
-    pattern_file = _write_pattern_file(location_config.get('patterns'))
+    try:
-    exclude_file = _write_pattern_file(
+        working_directory = os.path.expanduser(location_config.get('working_directory'))
-        _expand_home_directories(location_config.get('exclude_patterns'))
+    except TypeError:
+        working_directory = None
+    pattern_file = write_pattern_file(location_config.get('patterns'))
+    exclude_file = write_pattern_file(
+        expand_home_directories(location_config.get('exclude_patterns'))
     )
     checkpoint_interval = storage_config.get('checkpoint_interval', None)
     chunker_params = storage_config.get('chunker_params', None)
@@ -225,26 +243,52 @@ def create_archive(
     archive_name_format = storage_config.get('archive_name_format', DEFAULT_ARCHIVE_NAME_FORMAT)
     extra_borg_options = storage_config.get('extra_borg_options', {}).get('create', '')
 
+    if feature.available(feature.Feature.ATIME, local_borg_version):
+        atime_flags = ('--atime',) if location_config.get('atime') is True else ()
+    else:
+        atime_flags = ('--noatime',) if location_config.get('atime') is False else ()
+
+    if feature.available(feature.Feature.NOFLAGS, local_borg_version):
+        noflags_flags = ('--noflags',) if location_config.get('bsd_flags') is False else ()
+    else:
+        noflags_flags = ('--nobsdflags',) if location_config.get('bsd_flags') is False else ()
+
+    if feature.available(feature.Feature.NUMERIC_IDS, local_borg_version):
+        numeric_ids_flags = ('--numeric-ids',) if location_config.get('numeric_owner') else ()
+    else:
+        numeric_ids_flags = ('--numeric-owner',) if location_config.get('numeric_owner') else ()
+
+    if feature.available(feature.Feature.UPLOAD_RATELIMIT, local_borg_version):
+        upload_ratelimit_flags = (
+            ('--upload-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        )
+    else:
+        upload_ratelimit_flags = (
+            ('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        )
+
+    ensure_files_readable(location_config.get('patterns_from'), location_config.get('exclude_from'))
+
     full_command = (
         tuple(local_path.split(' '))
         + ('create',)
-        + _make_pattern_flags(location_config, pattern_file.name if pattern_file else None)
+        + make_pattern_flags(location_config, pattern_file.name if pattern_file else None)
-        + _make_exclude_flags(location_config, exclude_file.name if exclude_file else None)
+        + make_exclude_flags(location_config, exclude_file.name if exclude_file else None)
         + (('--checkpoint-interval', str(checkpoint_interval)) if checkpoint_interval else ())
         + (('--chunker-params', chunker_params) if chunker_params else ())
         + (('--compression', compression) if compression else ())
-        + (('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ())
+        + upload_ratelimit_flags
         + (
             ('--one-file-system',)
             if location_config.get('one_file_system') or stream_processes
             else ()
         )
-        + (('--numeric-owner',) if location_config.get('numeric_owner') else ())
+        + numeric_ids_flags
-        + (('--noatime',) if location_config.get('atime') is False else ())
+        + atime_flags
         + (('--noctime',) if location_config.get('ctime') is False else ())
         + (('--nobirthtime',) if location_config.get('birthtime') is False else ())
         + (('--read-special',) if (location_config.get('read_special') or stream_processes) else ())
-        + (('--nobsdflags',) if location_config.get('bsd_flags') is False else ())
+        + noflags_flags
         + (('--files-cache', files_cache) if files_cache else ())
         + (('--remote-path', remote_path) if remote_path else ())
         + (('--umask', str(umask)) if umask else ())
@@ -283,6 +327,13 @@ def create_archive(
             output_log_level,
             output_file,
             borg_local_path=local_path,
+            working_directory=working_directory,
         )
 
-    return execute_command(full_command, output_log_level, output_file, borg_local_path=local_path)
+    return execute_command(
+        full_command,
+        output_log_level,
+        output_file,
+        borg_local_path=local_path,
+        working_directory=working_directory,
+    )

borgmatic/borg/extract.py

@@ -2,6 +2,7 @@ import logging
 import os
 import subprocess
 
+from borgmatic.borg import feature
 from borgmatic.execute import DO_NOT_CAPTURE, execute_command
 
 logger = logging.getLogger(__name__)
@@ -61,6 +62,7 @@ def extract_archive(
     paths,
     location_config,
     storage_config,
+    local_borg_version,
     local_path='borg',
     remote_path=None,
     destination_path=None,
@@ -70,9 +72,9 @@ def extract_archive(
 ):
     '''
     Given a dry-run flag, a local or remote repository path, an archive name, zero or more paths to
-    restore from the archive, location/storage configuration dicts, optional local and remote Borg
+    restore from the archive, the local Borg version string, location/storage configuration dicts,
-    paths, and an optional destination path to extract to, extract the archive into the current
+    optional local and remote Borg paths, and an optional destination path to extract to, extract
-    directory.
+    the archive into the current directory.
 
     If extract to stdout is True, then start the extraction streaming to stdout, and return that
     extract process as an instance of subprocess.Popen.
@@ -83,10 +85,15 @@ def extract_archive(
     if progress and extract_to_stdout:
         raise ValueError('progress and extract_to_stdout cannot both be set')
 
+    if feature.available(feature.Feature.NUMERIC_IDS, local_borg_version):
+        numeric_ids_flags = ('--numeric-ids',) if location_config.get('numeric_owner') else ()
+    else:
+        numeric_ids_flags = ('--numeric-owner',) if location_config.get('numeric_owner') else ()
+
     full_command = (
         (local_path, 'extract')
         + (('--remote-path', remote_path) if remote_path else ())
-        + (('--numeric-owner',) if location_config.get('numeric_owner') else ())
+        + numeric_ids_flags
         + (('--umask', str(umask)) if umask else ())
         + (('--lock-wait', str(lock_wait)) if lock_wait else ())
         + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())

borgmatic/borg/feature.py

@@ -0,0 +1,28 @@
+from enum import Enum
+
+from pkg_resources import parse_version
+
+
+class Feature(Enum):
+    COMPACT = 1
+    ATIME = 2
+    NOFLAGS = 3
+    NUMERIC_IDS = 4
+    UPLOAD_RATELIMIT = 5
+
+
+FEATURE_TO_MINIMUM_BORG_VERSION = {
+    Feature.COMPACT: parse_version('1.2.0a2'),  # borg compact
+    Feature.ATIME: parse_version('1.2.0a7'),  # borg create --atime
+    Feature.NOFLAGS: parse_version('1.2.0a8'),  # borg create --noflags
+    Feature.NUMERIC_IDS: parse_version('1.2.0b3'),  # borg create/extract/mount --numeric-ids
+    Feature.UPLOAD_RATELIMIT: parse_version('1.2.0b3'),  # borg create --upload-ratelimit
+}
+
+
+def available(feature, borg_version):
+    '''
+    Given a Borg Feature constant and a Borg version string, return whether that feature is
+    available in that version of Borg.
+    '''
+    return FEATURE_TO_MINIMUM_BORG_VERSION[feature] <= parse_version(borg_version)

borgmatic/borg/version.py

@@ -0,0 +1,25 @@
+import logging
+
+from borgmatic.execute import execute_command
+
+logger = logging.getLogger(__name__)
+
+
+def local_borg_version(local_path='borg'):
+    '''
+    Given a local Borg binary path, return a version string for it.
+
+    Raise OSError or CalledProcessError if there is a problem running Borg.
+    Raise ValueError if the version cannot be parsed.
+    '''
+    full_command = (
+        (local_path, '--version')
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+        + (('--debug', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
+    )
+    output = execute_command(full_command, output_log_level=None, borg_local_path=local_path)
+
+    try:
+        return output.split(' ')[1].strip()
+    except IndexError:
+        raise ValueError('Could not parse Borg version string')

borgmatic/commands/arguments.py

@@ -6,6 +6,7 @@ from borgmatic.config import collect
 SUBPARSER_ALIASES = {
     'init': ['--init', '-I'],
     'prune': ['--prune', '-p'],
+    'compact': [],
     'create': ['--create', '-C'],
     'check': ['--check', '-k'],
     'extract': ['--extract', '-x'],
@@ -62,9 +63,9 @@ def parse_subparser_arguments(unparsed_arguments, subparsers):
 
         arguments[canonical_name] = parsed
 
-    # If no actions are explicitly requested, assume defaults: prune, create, and check.
+    # If no actions are explicitly requested, assume defaults: prune, compact, create, and check.
     if not arguments and '--help' not in unparsed_arguments and '-h' not in unparsed_arguments:
-        for subparser_name in ('prune', 'create', 'check'):
+        for subparser_name in ('prune', 'compact', 'create', 'check'):
             subparser = subparsers[subparser_name]
             parsed, unused_remaining = subparser.parse_known_args(unparsed_arguments)
             arguments[subparser_name] = parsed
@@ -199,8 +200,8 @@ def parse_arguments(*unparsed_arguments):
     top_level_parser = ArgumentParser(
         description='''
             Simple, configuration-driven backup software for servers and workstations. If none of
-            the action options are given, then borgmatic defaults to: prune, create, and check
+            the action options are given, then borgmatic defaults to: prune, compact, create, and
-            archives.
+            check.
             ''',
         parents=[global_parser],
     )
@@ -208,7 +209,7 @@ def parse_arguments(*unparsed_arguments):
     subparsers = top_level_parser.add_subparsers(
         title='actions',
         metavar='',
-        help='Specify zero or more actions. Defaults to prune, create, and check. Use --help with action for details:',
+        help='Specify zero or more actions. Defaults to prune, compact, create, and check. Use --help with action for details:',
     )
     init_parser = subparsers.add_parser(
         'init',
@@ -241,8 +242,8 @@ def parse_arguments(*unparsed_arguments):
     prune_parser = subparsers.add_parser(
         'prune',
         aliases=SUBPARSER_ALIASES['prune'],
-        help='Prune archives according to the retention policy',
+        help='Prune archives according to the retention policy (with Borg 1.2+, run compact afterwards to actually free space)',
-        description='Prune archives according to the retention policy',
+        description='Prune archives according to the retention policy (with Borg 1.2+, run compact afterwards to actually free space)',
         add_help=False,
     )
     prune_group = prune_parser.add_argument_group('prune arguments')
@@ -258,6 +259,38 @@ def parse_arguments(*unparsed_arguments):
     )
     prune_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
 
+    compact_parser = subparsers.add_parser(
+        'compact',
+        aliases=SUBPARSER_ALIASES['compact'],
+        help='Compact segments to free space (Borg 1.2+ only)',
+        description='Compact segments to free space (Borg 1.2+ only)',
+        add_help=False,
+    )
+    compact_group = compact_parser.add_argument_group('compact arguments')
+    compact_group.add_argument(
+        '--progress',
+        dest='progress',
+        default=False,
+        action='store_true',
+        help='Display progress as each segment is compacted',
+    )
+    compact_group.add_argument(
+        '--cleanup-commits',
+        dest='cleanup_commits',
+        default=False,
+        action='store_true',
+        help='Cleanup commit-only 17-byte segment files left behind by Borg 1.1',
+    )
+    compact_group.add_argument(
+        '--threshold',
+        type=int,
+        dest='threshold',
+        help='Minimum saved space percentage threshold for compacting a segment, defaults to 10',
+    )
+    compact_group.add_argument(
+        '-h', '--help', action='help', help='Show this help message and exit'
+    )
+
     create_parser = subparsers.add_parser(
         'create',
         aliases=SUBPARSER_ALIASES['create'],

borgmatic/commands/borgmatic.py

@@ -4,6 +4,8 @@ import json
 import logging
 import os
 import sys
+import time
+from queue import Queue
 from subprocess import CalledProcessError
 
 import colorama
@@ -11,16 +13,19 @@ import pkg_resources
 
 from borgmatic.borg import borg as borg_borg
 from borgmatic.borg import check as borg_check
+from borgmatic.borg import compact as borg_compact
 from borgmatic.borg import create as borg_create
 from borgmatic.borg import environment as borg_environment
 from borgmatic.borg import export_tar as borg_export_tar
 from borgmatic.borg import extract as borg_extract
+from borgmatic.borg import feature as borg_feature
 from borgmatic.borg import info as borg_info
 from borgmatic.borg import init as borg_init
 from borgmatic.borg import list as borg_list
 from borgmatic.borg import mount as borg_mount
 from borgmatic.borg import prune as borg_prune
 from borgmatic.borg import umount as borg_umount
+from borgmatic.borg import version as borg_version
 from borgmatic.commands.arguments import parse_arguments
 from borgmatic.config import checks, collect, convert, validate
 from borgmatic.hooks import command, dispatch, dump, monitor
@@ -36,8 +41,8 @@ LEGACY_CONFIG_PATH = '/etc/borgmatic/config'
 def run_configuration(config_filename, config, arguments):
     '''
     Given a config filename, the corresponding parsed config dict, and command-line arguments as a
-    dict from subparser name to a namespace of parsed arguments, execute its defined pruning,
+    dict from subparser name to a namespace of parsed arguments, execute the defined prune, compact,
-    backups, consistency checks, and/or other actions.
+    create, check, and/or other actions.
 
     Yield a combination of:
 
@@ -52,14 +57,28 @@ def run_configuration(config_filename, config, arguments):
 
     local_path = location.get('local_path', 'borg')
     remote_path = location.get('remote_path')
+    retries = storage.get('retries', 0)
+    retry_wait = storage.get('retry_wait', 0)
     borg_environment.initialize(storage)
     encountered_error = None
     error_repository = ''
-    prune_create_or_check = {'prune', 'create', 'check'}.intersection(arguments)
+    using_primary_action = {'prune', 'compact', 'create', 'check'}.intersection(arguments)
     monitoring_log_level = verbosity_to_log_level(global_arguments.monitoring_verbosity)
 
+    hook_context = {
+        'repositories': ','.join(location['repositories']),
+    }
+
     try:
-        if prune_create_or_check:
+        local_borg_version = borg_version.local_borg_version(local_path)
+    except (OSError, CalledProcessError, ValueError) as error:
+        yield from log_error_records(
+            '{}: Error getting local Borg version'.format(config_filename), error
+        )
+        return
+
+    try:
+        if using_primary_action:
             dispatch.call_hooks(
                 'initialize_monitor',
                 hooks,
@@ -75,6 +94,15 @@ def run_configuration(config_filename, config, arguments):
                 config_filename,
                 'pre-prune',
                 global_arguments.dry_run,
+                **hook_context,
+            )
+        if 'compact' in arguments:
+            command.execute_hook(
+                hooks.get('before_compact'),
+                hooks.get('umask'),
+                config_filename,
+                'pre-compact',
+                global_arguments.dry_run,
             )
         if 'create' in arguments:
             command.execute_hook(
@@ -83,6 +111,7 @@ def run_configuration(config_filename, config, arguments):
                 config_filename,
                 'pre-backup',
                 global_arguments.dry_run,
+                **hook_context,
             )
         if 'check' in arguments:
             command.execute_hook(
@@ -91,6 +120,7 @@ def run_configuration(config_filename, config, arguments):
                 config_filename,
                 'pre-check',
                 global_arguments.dry_run,
+                **hook_context,
             )
         if 'extract' in arguments:
             command.execute_hook(
@@ -99,8 +129,9 @@ def run_configuration(config_filename, config, arguments):
                 config_filename,
                 'pre-extract',
                 global_arguments.dry_run,
+                **hook_context,
             )
-        if prune_create_or_check:
+        if using_primary_action:
             dispatch.call_hooks(
                 'ping_monitor',
                 hooks,
@@ -115,12 +146,19 @@ def run_configuration(config_filename, config, arguments):
             return
 
         encountered_error = error
-        yield from make_error_log_records(
+        yield from log_error_records('{}: Error running pre hook'.format(config_filename), error)
-            '{}: Error running pre hook'.format(config_filename), error
-        )
 
     if not encountered_error:
-        for repository_path in location['repositories']:
+        repo_queue = Queue()
+        for repo in location['repositories']:
+            repo_queue.put((repo, 0),)
+
+        while not repo_queue.empty():
+            repository_path, retry_num = repo_queue.get()
+            timeout = retry_num * retry_wait
+            if timeout:
+                logger.warning(f'{config_filename}: Sleeping {timeout}s before next retry')
+                time.sleep(timeout)
             try:
                 yield from run_actions(
                     arguments=arguments,
@@ -131,14 +169,30 @@ def run_configuration(config_filename, config, arguments):
                     hooks=hooks,
                     local_path=local_path,
                     remote_path=remote_path,
+                    local_borg_version=local_borg_version,
                     repository_path=repository_path,
                 )
             except (OSError, CalledProcessError, ValueError) as error:
-                encountered_error = error
+                if retry_num < retries:
-                error_repository = repository_path
+                    repo_queue.put((repository_path, retry_num + 1),)
-                yield from make_error_log_records(
+                    tuple(  # Consume the generator so as to trigger logging.
+                        log_error_records(
+                            '{}: Error running actions for repository'.format(repository_path),
+                            error,
+                            levelno=logging.WARNING,
+                            log_command_error_output=True,
+                        )
+                    )
+                    logger.warning(
+                        f'{config_filename}: Retrying... attempt {retry_num + 1}/{retries}'
+                    )
+                    continue
+
+                yield from log_error_records(
                     '{}: Error running actions for repository'.format(repository_path), error
                 )
+                encountered_error = error
+                error_repository = repository_path
 
     if not encountered_error:
         try:
@@ -149,6 +203,15 @@ def run_configuration(config_filename, config, arguments):
                     config_filename,
                     'post-prune',
                     global_arguments.dry_run,
+                    **hook_context,
+                )
+            if 'compact' in arguments:
+                command.execute_hook(
+                    hooks.get('after_compact'),
+                    hooks.get('umask'),
+                    config_filename,
+                    'post-compact',
+                    global_arguments.dry_run,
                 )
             if 'create' in arguments:
                 dispatch.call_hooks(
@@ -165,6 +228,7 @@ def run_configuration(config_filename, config, arguments):
                     config_filename,
                     'post-backup',
                     global_arguments.dry_run,
+                    **hook_context,
                 )
             if 'check' in arguments:
                 command.execute_hook(
@@ -173,6 +237,7 @@ def run_configuration(config_filename, config, arguments):
                     config_filename,
                     'post-check',
                     global_arguments.dry_run,
+                    **hook_context,
                 )
             if 'extract' in arguments:
                 command.execute_hook(
@@ -181,8 +246,9 @@ def run_configuration(config_filename, config, arguments):
                     config_filename,
                     'post-extract',
                     global_arguments.dry_run,
+                    **hook_context,
                 )
-            if prune_create_or_check:
+            if using_primary_action:
                 dispatch.call_hooks(
                     'ping_monitor',
                     hooks,
@@ -205,11 +271,11 @@ def run_configuration(config_filename, config, arguments):
                 return
 
             encountered_error = error
-            yield from make_error_log_records(
+            yield from log_error_records(
                 '{}: Error running post hook'.format(config_filename), error
             )
 
-    if encountered_error and prune_create_or_check:
+    if encountered_error and using_primary_action:
         try:
             command.execute_hook(
                 hooks.get('on_error'),
@@ -242,7 +308,7 @@ def run_configuration(config_filename, config, arguments):
             if command.considered_soft_failure(config_filename, error):
                 return
 
-            yield from make_error_log_records(
+            yield from log_error_records(
                 '{}: Error running on-error hook'.format(config_filename), error
             )
 
@@ -257,12 +323,13 @@ def run_actions(
     hooks,
     local_path,
     remote_path,
-    repository_path
+    local_borg_version,
+    repository_path,
 ):  # pragma: no cover
     '''
     Given parsed command-line arguments as an argparse.ArgumentParser instance, several different
-    configuration dicts, local and remote paths to Borg, and a repository name, run all actions
+    configuration dicts, local and remote paths to Borg, a local Borg version string, and a
-    from the command-line arguments on the given repository.
+    repository name, run all actions from the command-line arguments on the given repository.
 
     Yield JSON output strings from executing any actions that produce JSON.
 
@@ -295,6 +362,23 @@ def run_actions(
             stats=arguments['prune'].stats,
             files=arguments['prune'].files,
         )
+    if 'compact' in arguments:
+        if borg_feature.available(borg_feature.Feature.COMPACT, local_borg_version):
+            logger.info('{}: Compacting segments{}'.format(repository, dry_run_label))
+            borg_compact.compact_segments(
+                global_arguments.dry_run,
+                repository,
+                storage,
+                local_path=local_path,
+                remote_path=remote_path,
+                progress=arguments['compact'].progress,
+                cleanup_commits=arguments['compact'].cleanup_commits,
+                threshold=arguments['compact'].threshold,
+            )
+        else:
+            logger.info(
+                '{}: Skipping compact (only available/needed in Borg 1.2+)'.format(repository)
+            )
     if 'create' in arguments:
         logger.info('{}: Creating archive{}'.format(repository, dry_run_label))
         dispatch.call_hooks(
@@ -320,6 +404,7 @@ def run_actions(
             repository,
             location,
             storage,
+            local_borg_version,
             local_path=local_path,
             remote_path=remote_path,
             progress=arguments['create'].progress,
@@ -359,6 +444,7 @@ def run_actions(
                 arguments['extract'].paths,
                 location,
                 storage,
+                local_borg_version,
                 local_path=local_path,
                 remote_path=remote_path,
                 destination_path=arguments['extract'].destination,
@@ -467,6 +553,7 @@ def run_actions(
                         paths=dump.convert_glob_patterns_to_borg_patterns([dump_pattern]),
                         location_config=location,
                         storage_config=storage,
+                        local_borg_version=local_borg_version,
                         local_path=local_path,
                         remote_path=remote_path,
                         destination_path='/',
@@ -578,6 +665,20 @@ def load_configurations(config_filenames, overrides=None):
             configs[config_filename] = validate.parse_configuration(
                 config_filename, validate.schema_filename(), overrides
             )
+        except PermissionError:
+            logs.extend(
+                [
+                    logging.makeLogRecord(
+                        dict(
+                            levelno=logging.WARNING,
+                            levelname='WARNING',
+                            msg='{}: Insufficient permissions to read configuration file'.format(
+                                config_filename
+                            ),
+                        )
+                    ),
+                ]
+            )
         except (ValueError, OSError, validate.Validation_error) as error:
             logs.extend(
                 [
@@ -610,28 +711,39 @@ def log_record(suppress_log=False, **kwargs):
     return record
 
 
-def make_error_log_records(message, error=None):
+def log_error_records(
+    message, error=None, levelno=logging.CRITICAL, log_command_error_output=False
+):
     '''
-    Given error message text and an optional exception object, yield a series of logging.LogRecord
+    Given error message text, an optional exception object, an optional log level, and whether to
-    instances with error summary information. As a side effect, log each record.
+    log the error output of a CalledProcessError (if any), log error summary information and also
+    yield it as a series of logging.LogRecord instances.
+
+    Note that because the logs are yielded as a generator, logs won't get logged unless you consume
+    the generator output.
     '''
+    level_name = logging._levelToName[levelno]
+
     if not error:
-        yield log_record(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        yield log_record(levelno=levelno, levelname=level_name, msg=message)
         return
 
     try:
         raise error
     except CalledProcessError as error:
-        yield log_record(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        yield log_record(levelno=levelno, levelname=level_name, msg=message)
         if error.output:
             # Suppress these logs for now and save full error output for the log summary at the end.
             yield log_record(
-                levelno=logging.CRITICAL, levelname='CRITICAL', msg=error.output, suppress_log=True
+                levelno=levelno,
+                levelname=level_name,
+                msg=error.output,
+                suppress_log=not log_command_error_output,
             )
-        yield log_record(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error)
+        yield log_record(levelno=levelno, levelname=level_name, msg=error)
     except (ValueError, OSError) as error:
-        yield log_record(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        yield log_record(levelno=levelno, levelname=level_name, msg=message)
-        yield log_record(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error)
+        yield log_record(levelno=levelno, levelname=level_name, msg=error)
     except:  # noqa: E722
         # Raising above only as a means of determining the error type. Swallow the exception here
         # because we don't want the exception to propagate out of this function.
@@ -670,11 +782,11 @@ def collect_configuration_run_summary_logs(configs, arguments):
         try:
             validate.guard_configuration_contains_repository(repository, configs)
         except ValueError as error:
-            yield from make_error_log_records(str(error))
+            yield from log_error_records(str(error))
             return
 
     if not configs:
-        yield from make_error_log_records(
+        yield from log_error_records(
             '{}: No valid configuration files found'.format(
                 ' '.join(arguments['global'].config_paths)
             )
@@ -693,7 +805,7 @@ def collect_configuration_run_summary_logs(configs, arguments):
                     arguments['global'].dry_run,
                 )
         except (CalledProcessError, ValueError, OSError) as error:
-            yield from make_error_log_records('Error running pre-everything hook', error)
+            yield from log_error_records('Error running pre-everything hook', error)
             return
 
     # Execute the actions corresponding to each configuration file.
@@ -703,7 +815,7 @@ def collect_configuration_run_summary_logs(configs, arguments):
         error_logs = tuple(result for result in results if isinstance(result, logging.LogRecord))
 
         if error_logs:
-            yield from make_error_log_records(
+            yield from log_error_records(
                 '{}: Error running configuration file'.format(config_filename)
             )
             yield from error_logs
@@ -725,7 +837,7 @@ def collect_configuration_run_summary_logs(configs, arguments):
                 mount_point=arguments['umount'].mount_point, local_path=get_local_path(configs)
             )
         except (CalledProcessError, OSError) as error:
-            yield from make_error_log_records('Error unmounting mount point', error)
+            yield from log_error_records('Error unmounting mount point', error)
 
     if json_results:
         sys.stdout.write(json.dumps(json_results))
@@ -742,7 +854,7 @@ def collect_configuration_run_summary_logs(configs, arguments):
                     arguments['global'].dry_run,
                 )
         except (CalledProcessError, ValueError, OSError) as error:
-            yield from make_error_log_records('Error running post-everything hook', error)
+            yield from log_error_records('Error running post-everything hook', error)
 
 
 def exit_with_help_link():  # pragma: no cover

borgmatic/config/override.py

@@ -26,6 +26,8 @@ def convert_value_type(value):
     '''
     Given a string value, determine its logical type (string, boolean, integer, etc.), and return it
     converted to that type.
+
+    Raise ruamel.yaml.error.YAMLError if there's a parse issue with the YAML.
     '''
     return ruamel.yaml.YAML(typ='safe').load(io.StringIO(value))
 
@@ -58,6 +60,8 @@ def parse_overrides(raw_overrides):
         )
     except ValueError:
         raise ValueError('Invalid override. Make sure you use the form: SECTION.OPTION=VALUE')
+    except ruamel.yaml.error.YAMLError as error:
+        raise ValueError(f'Invalid override value: {error}')
 
 
 def apply_overrides(config, raw_overrides):

borgmatic/config/schema.yaml

@@ -42,13 +42,21 @@ properties:
                 example:
                     - user@backupserver:sourcehostname.borg
                     - "user@backupserver:{fqdn}"
+            working_directory:
+                type: string
+                description: |
+                    Working directory for the "borg create" command. Tildes are
+                    expanded. Useful for backing up using relative paths. See
+                    http://borgbackup.readthedocs.io/en/stable/usage/create.html
+                    for details. Defaults to not set.
+                example: /path/to/working/directory
             one_file_system:
                 type: boolean
                 description: |
-                    Stay in same file system (do not cross mount points).
+                    Stay in same file system: do not cross mount points beyond
-                    Defaults to false. But when a database hook is used, the
+                    the given source directories. Defaults to false. But when a
-                    setting here is ignored and one_file_system is considered
+                    database hook is used, the setting here is ignored and
-                    true.
+                    one_file_system is considered true.
                 example: true
             numeric_owner:
                 type: boolean
@@ -58,7 +66,9 @@ properties:
                 example: true
             atime:
                 type: boolean
-                description: Store atime into archive. Defaults to true.
+                description: |
+                    Store atime into archive. Defaults to true in Borg < 1.2,
+                    false in Borg 1.2+.
                 example: false
             ctime:
                 type: boolean
@@ -109,10 +119,10 @@ properties:
                     type: string
                 description: |
                     Any paths matching these patterns are included/excluded from
-                    backups. Globs are expanded. (Tildes are not.) Note that
+                    backups. Globs are expanded. (Tildes are not.) See the
-                    Borg considers this option experimental. See the output of
+                    output of "borg help patterns" for more details. Quote any
-                    "borg help patterns" for more details. Quote any value if it
+                    value if it contains leading punctuation, so it parses
-                    contains leading punctuation, so it parses correctly.
+                    correctly.
                 example:
                     - 'R /'
                     - '- /home/*/.cache'
@@ -251,6 +261,19 @@ properties:
                     Remote network upload rate limit in kiBytes/second. Defaults
                     to unlimited.
                 example: 100
+            retries:
+                type: integer
+                description: |
+                    Number of times to retry a failing backup before giving up.
+                    Defaults to 0 (i.e., does not attempt retry).
+                example: 3
+            retry_wait:
+                type: integer
+                description: |
+                    Wait time between retries (in seconds) to allow transient
+                    issues to pass. Increases after each retry as a form of
+                    backoff. Defaults to 0 (no wait).
+                example: 10
             temporary_directory:
                 type: string
                 description: |
@@ -333,23 +356,28 @@ properties:
                     init:
                         type: string
                         description: |
-                            Extra command-line options to pass to "borg init".
+                          Extra command-line options to pass to "borg init".
-                        example: "--make-parent-dirs"
+                        example: "--extra-option"
                     prune:
                         type: string
                         description: |
-                            Extra command-line options to pass to "borg prune".
+                          Extra command-line options to pass to "borg prune".
-                        example: "--save-space"
+                        example: "--extra-option"
+                    compact:
+                        type: string
+                        description: |
+                          Extra command-line options to pass to "borg compact".
+                        example: "--extra-option"
                     create:
                         type: string
                         description: |
-                            Extra command-line options to pass to "borg create".
+                          Extra command-line options to pass to "borg create".
-                        example: "--no-files-cache"
+                        example: "--extra-option"
                     check:
                         type: string
                         description: |
-                            Extra command-line options to pass to "borg check".
+                          Extra command-line options to pass to "borg check".
-                        example: "--save-space"
+                        example: "--extra-option"
                 description: |
                     Additional options to pass directly to particular Borg
                     commands, handy for Borg options that borgmatic does not yet
@@ -509,6 +537,15 @@ properties:
                     before pruning, run once per configuration file.
                 example:
                     - echo "Starting pruning."
+            before_compact:
+                type: array
+                items:
+                    type: string
+                description: |
+                    List of one or more shell commands or scripts to execute
+                    before compaction, run once per configuration file.
+                example:
+                    - echo "Starting compaction."
             before_check:
                 type: array
                 items:
@@ -536,6 +573,15 @@ properties:
                     after creating a backup, run once per configuration file.
                 example:
                     - echo "Finished a backup."
+            after_compact:
+                type: array
+                items:
+                    type: string
+                description: |
+                    List of one or more shell commands or scripts to execute
+                    after compaction, run once per configuration file.
+                example:
+                    - echo "Finished compaction."
             after_prune:
                 type: array
                 items:
@@ -569,10 +615,11 @@ properties:
                     type: string
                 description: |
                     List of one or more shell commands or scripts to execute
-                    when an exception occurs during a "prune", "create", or
+                    when an exception occurs during a "prune", "compact",
-                    "check" action or an associated before/after hook.
+                    "create", or "check" action or an associated before/after
+                    hook.
                 example:
-                    - echo "Error during prune/create/check."
+                    - echo "Error during prune/compact/create/check."
             before_everything:
                 type: array
                 items:
@@ -736,6 +783,14 @@ properties:
                                 configured to trust the configured username
                                 without a password.
                             example: trustsome1
+                        list_options:
+                            type: string
+                            description: |
+                                Additional mysql options to pass directly to
+                                the mysql command that lists available
+                                databases, without performing any validation on
+                                them. See mysql documentation for details.
+                            example: --defaults-extra-file=my.cnf
                         options:
                             type: string
                             description: |
@@ -752,6 +807,80 @@ properties:
                     mysqldump/mysql commands (from either MySQL or MariaDB). See
                     https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html or
                     https://mariadb.com/kb/en/library/mysqldump/ for details.
+            mongodb_databases:
+                type: array
+                items:
+                    type: object
+                    required: ['name']
+                    additionalProperties: false
+                    properties:
+                        name:
+                            type: string
+                            description: |
+                                Database name (required if using this hook). Or
+                                "all" to dump all databases on the host. Note
+                                that using this database hook implicitly enables
+                                both read_special and one_file_system (see
+                                above) to support dump and restore streaming.
+                            example: users
+                        hostname:
+                            type: string
+                            description: |
+                                Database hostname to connect to. Defaults to
+                                connecting to localhost.
+                            example: database.example.org
+                        port:
+                            type: integer
+                            description: Port to connect to. Defaults to 27017.
+                            example: 27018
+                        username:
+                            type: string
+                            description: |
+                                Username with which to connect to the database.
+                                Skip it if no authentication is needed.
+                            example: dbuser
+                        password:
+                            type: string
+                            description: |
+                                Password with which to connect to the database.
+                                Skip it if no authentication is needed.
+                            example: trustsome1
+                        authentication_database:
+                            type: string
+                            description: |
+                                Authentication database where the specified
+                                username exists. If no authentication database
+                                is specified, the database provided in "name"
+                                is used. If "name" is "all", the "admin"
+                                database is used.
+                            example: admin
+                        format:
+                            type: string
+                            enum: ['archive', 'directory']
+                            description: |
+                                Database dump output format. One of "archive",
+                                or "directory". Defaults to "archive". See 
+                                mongodump documentation for details. Note that 
+                                format is ignored when the database name is
+                                "all".
+                            example: directory
+                        options:
+                            type: string
+                            description: |
+                                Additional mongodump options to pass
+                                directly to the dump command, without performing
+                                any validation on them. See mongodump
+                                documentation for details.
+                            example: --role=someone
+                description: |
+                    List of one or more MongoDB databases to dump before
+                    creating a backup, run once per configuration file. The
+                    database dumps are added to your source directories at
+                    runtime, backed up, and removed afterwards. Requires
+                    mongodump/mongorestore commands. See
+                    https://docs.mongodb.com/database-tools/mongodump/ and
+                    https://docs.mongodb.com/database-tools/mongorestore/ for
+                    details.
             healthchecks:
                 type: string
                 description: |

borgmatic/config/validate.py

@@ -15,7 +15,7 @@ def schema_filename():
     return pkg_resources.resource_filename('borgmatic', 'config/schema.yaml')
 
 
-def format_error_path_element(path_element):
+def format_json_error_path_element(path_element):
     '''
     Given a path element into a JSON data structure, format it for display as a string.
     '''
@@ -25,14 +25,14 @@ def format_error_path_element(path_element):
     return str('.{}'.format(path_element))
 
 
-def format_error(error):
+def format_json_error(error):
     '''
     Given an instance of jsonschema.exceptions.ValidationError, format it for display as a string.
     '''
     if not error.path:
         return 'At the top level: {}'.format(error.message)
 
-    formatted_path = ''.join(format_error_path_element(element) for element in error.path)
+    formatted_path = ''.join(format_json_error_path_element(element) for element in error.path)
     return "At '{}': {}".format(formatted_path.lstrip('.'), error.message)
 
 
@@ -44,8 +44,8 @@ class Validation_error(ValueError):
 
     def __init__(self, config_filename, errors):
         '''
-        Given a configuration filename path and a sequence of
+        Given a configuration filename path and a sequence of string error messages, create a
-        jsonschema.exceptions.ValidationError instances, create a Validation_error.
+        Validation_error.
         '''
         self.config_filename = config_filename
         self.errors = errors
@@ -56,7 +56,7 @@ class Validation_error(ValueError):
         '''
         return 'An error occurred while parsing a configuration file at {}:\n'.format(
             self.config_filename
-        ) + '\n'.join(format_error(error) for error in self.errors)
+        ) + '\n'.join(error for error in self.errors)
 
 
 def apply_logical_validation(config_filename, parsed_configuration):
@@ -110,11 +110,16 @@ def parse_configuration(config_filename, schema_filename, overrides=None):
     override.apply_overrides(config, overrides)
     normalize.normalize(config)
 
-    validator = jsonschema.Draft7Validator(schema)
+    try:
+        validator = jsonschema.Draft7Validator(schema)
+    except AttributeError:  # pragma: no cover
+        validator = jsonschema.Draft4Validator(schema)
     validation_errors = tuple(validator.iter_errors(config))
 
     if validation_errors:
-        raise Validation_error(config_filename, validation_errors)
+        raise Validation_error(
+            config_filename, tuple(format_json_error(error) for error in validation_errors)
+        )
 
     apply_logical_validation(config_filename, config)
 

borgmatic/hooks/dispatch.py

@@ -1,6 +1,6 @@
 import logging
 
-from borgmatic.hooks import cronhub, cronitor, healthchecks, mysql, pagerduty, postgresql
+from borgmatic.hooks import cronhub, cronitor, healthchecks, mongodb, mysql, pagerduty, postgresql
 
 logger = logging.getLogger(__name__)
 
@@ -11,6 +11,7 @@ HOOK_NAME_TO_MODULE = {
     'pagerduty': pagerduty,
     'postgresql_databases': postgresql,
     'mysql_databases': mysql,
+    'mongodb_databases': mongodb,
 }
 
 

borgmatic/hooks/dump.py

@@ -6,7 +6,7 @@ from borgmatic.borg.create import DEFAULT_BORGMATIC_SOURCE_DIRECTORY
 
 logger = logging.getLogger(__name__)
 
-DATABASE_HOOK_NAMES = ('postgresql_databases', 'mysql_databases')
+DATABASE_HOOK_NAMES = ('postgresql_databases', 'mysql_databases', 'mongodb_databases')
 
 
 def make_database_dump_path(borgmatic_source_directory, database_hook_name):

borgmatic/hooks/healthchecks.py

@@ -13,7 +13,7 @@ MONITOR_STATE_TO_HEALTHCHECKS = {
 }
 
 PAYLOAD_TRUNCATION_INDICATOR = '...\n'
-PAYLOAD_LIMIT_BYTES = 10 * 1024 - len(PAYLOAD_TRUNCATION_INDICATOR)
+PAYLOAD_LIMIT_BYTES = 100 * 1024 - len(PAYLOAD_TRUNCATION_INDICATOR)
 
 
 class Forgetful_buffering_handler(logging.Handler):

borgmatic/hooks/mongodb.py

@@ -0,0 +1,162 @@
+import logging
+
+from borgmatic.execute import execute_command, execute_command_with_processes
+from borgmatic.hooks import dump
+
+logger = logging.getLogger(__name__)
+
+
+def make_dump_path(location_config):  # pragma: no cover
+    '''
+    Make the dump path from the given location configuration and the name of this hook.
+    '''
+    return dump.make_database_dump_path(
+        location_config.get('borgmatic_source_directory'), 'mongodb_databases'
+    )
+
+
+def dump_databases(databases, log_prefix, location_config, dry_run):
+    '''
+    Dump the given MongoDB databases to a named pipe. The databases are supplied as a sequence of
+    dicts, one dict describing each database as per the configuration schema. Use the given log
+    prefix in any log entries. Use the given location configuration dict to construct the
+    destination path.
+
+    Return a sequence of subprocess.Popen instances for the dump processes ready to spew to a named
+    pipe. But if this is a dry run, then don't actually dump anything and return an empty sequence.
+    '''
+    dry_run_label = ' (dry run; not actually dumping anything)' if dry_run else ''
+
+    logger.info('{}: Dumping MongoDB databases{}'.format(log_prefix, dry_run_label))
+
+    processes = []
+    for database in databases:
+        name = database['name']
+        dump_filename = dump.make_database_dump_filename(
+            make_dump_path(location_config), name, database.get('hostname')
+        )
+        dump_format = database.get('format', 'archive')
+
+        logger.debug(
+            '{}: Dumping MongoDB database {} to {}{}'.format(
+                log_prefix, name, dump_filename, dry_run_label
+            )
+        )
+        if dry_run:
+            continue
+
+        if dump_format == 'directory':
+            dump.create_parent_directory_for_dump(dump_filename)
+        else:
+            dump.create_named_pipe_for_dump(dump_filename)
+
+        command = build_dump_command(database, dump_filename, dump_format)
+        processes.append(execute_command(command, shell=True, run_to_completion=False))
+
+    return processes
+
+
+def build_dump_command(database, dump_filename, dump_format):
+    '''
+    Return the mongodump command from a single database configuration.
+    '''
+    all_databases = database['name'] == 'all'
+    command = ['mongodump', '--archive']
+    if dump_format == 'directory':
+        command.append(dump_filename)
+    if 'hostname' in database:
+        command.extend(('--host', database['hostname']))
+    if 'port' in database:
+        command.extend(('--port', str(database['port'])))
+    if 'username' in database:
+        command.extend(('--username', database['username']))
+    if 'password' in database:
+        command.extend(('--password', database['password']))
+    if 'authentication_database' in database:
+        command.extend(('--authenticationDatabase', database['authentication_database']))
+    if not all_databases:
+        command.extend(('--db', database['name']))
+    if 'options' in database:
+        command.extend(database['options'].split(' '))
+    if dump_format != 'directory':
+        command.extend(('>', dump_filename))
+    return command
+
+
+def remove_database_dumps(databases, log_prefix, location_config, dry_run):  # pragma: no cover
+    '''
+    Remove all database dump files for this hook regardless of the given databases. Use the log
+    prefix in any log entries. Use the given location configuration dict to construct the
+    destination path. If this is a dry run, then don't actually remove anything.
+    '''
+    dump.remove_database_dumps(make_dump_path(location_config), 'MongoDB', log_prefix, dry_run)
+
+
+def make_database_dump_pattern(
+    databases, log_prefix, location_config, name=None
+):  # pragma: no cover
+    '''
+    Given a sequence of configurations dicts, a prefix to log with, a location configuration dict,
+    and a database name to match, return the corresponding glob patterns to match the database dump
+    in an archive.
+    '''
+    return dump.make_database_dump_filename(make_dump_path(location_config), name, hostname='*')
+
+
+def restore_database_dump(database_config, log_prefix, location_config, dry_run, extract_process):
+    '''
+    Restore the given MongoDB database from an extract stream. The database is supplied as a
+    one-element sequence containing a dict describing the database, as per the configuration schema.
+    Use the given log prefix in any log entries. If this is a dry run, then don't actually restore
+    anything. Trigger the given active extract process (an instance of subprocess.Popen) to produce
+    output to consume.
+
+    If the extract process is None, then restore the dump from the filesystem rather than from an
+    extract stream.
+    '''
+    dry_run_label = ' (dry run; not actually restoring anything)' if dry_run else ''
+
+    if len(database_config) != 1:
+        raise ValueError('The database configuration value is invalid')
+
+    database = database_config[0]
+    dump_filename = dump.make_database_dump_filename(
+        make_dump_path(location_config), database['name'], database.get('hostname')
+    )
+    restore_command = build_restore_command(extract_process, database, dump_filename)
+
+    logger.debug(
+        '{}: Restoring MongoDB database {}{}'.format(log_prefix, database['name'], dry_run_label)
+    )
+    if dry_run:
+        return
+
+    execute_command_with_processes(
+        restore_command,
+        [extract_process] if extract_process else [],
+        output_log_level=logging.DEBUG,
+        input_file=extract_process.stdout if extract_process else None,
+        borg_local_path=location_config.get('local_path', 'borg'),
+    )
+
+
+def build_restore_command(extract_process, database, dump_filename):
+    '''
+    Return the mongorestore command from a single database configuration.
+    '''
+    command = ['mongorestore', '--archive']
+    if not extract_process:
+        command.append(dump_filename)
+    if database['name'] != 'all':
+        command.extend(('--drop', '--db', database['name']))
+    if 'hostname' in database:
+        command.extend(('--host', database['hostname']))
+    if 'port' in database:
+        command.extend(('--port', str(database['port'])))
+    if 'username' in database:
+        command.extend(('--username', database['username']))
+    if 'password' in database:
+        command.extend(('--password', database['password']))
+    if 'authentication_database' in database:
+        command.extend(('--authenticationDatabase', database['authentication_database']))
+    return command

borgmatic/hooks/mysql.py

@@ -31,6 +31,7 @@ def database_names_to_dump(database, extra_environment, log_prefix, dry_run_labe
 
     show_command = (
         ('mysql',)
+        + (tuple(database['list_options'].split(' ')) if 'list_options' in database else ())
         + (('--host', database['hostname']) if 'hostname' in database else ())
         + (('--port', str(database['port'])) if 'port' in database else ())
         + (('--protocol', 'tcp') if 'hostname' in database or 'port' in database else ())
@@ -81,12 +82,12 @@ def dump_databases(databases, log_prefix, location_config, dry_run):
 
         dump_command = (
             ('mysqldump',)
+            + (tuple(database['options'].split(' ')) if 'options' in database else ())
             + ('--add-drop-database',)
             + (('--host', database['hostname']) if 'hostname' in database else ())
             + (('--port', str(database['port'])) if 'port' in database else ())
             + (('--protocol', 'tcp') if 'hostname' in database or 'port' in database else ())
             + (('--user', database['username']) if 'username' in database else ())
-            + (tuple(database['options'].split(' ')) if 'options' in database else ())
             + ('--databases',)
             + dump_database_names
             # Use shell redirection rather than execute_command(output_file=open(...)) to prevent
@@ -151,7 +152,7 @@ def restore_database_dump(database_config, log_prefix, location_config, dry_run,
 
     database = database_config[0]
     restore_command = (
-        ('mysql', '--batch', '--verbose')
+        ('mysql', '--batch')
         + (('--host', database['hostname']) if 'hostname' in database else ())
         + (('--port', str(database['port'])) if 'port' in database else ())
         + (('--protocol', 'tcp') if 'hostname' in database or 'port' in database else ())

borgmatic/signals.py

@@ -1,23 +1,34 @@
+import logging
 import os
 import signal
+import sys
+
+logger = logging.getLogger(__name__)
 
 
-def _handle_signal(signal_number, frame):  # pragma: no cover
+EXIT_CODE_FROM_SIGNAL = 128
+
+
+def handle_signal(signal_number, frame):
     '''
     Send the signal to all processes in borgmatic's process group, which includes child processes.
     '''
     # Prevent infinite signal handler recursion. If the parent frame is this very same handler
     # function, we know we're recursing.
-    if frame.f_back.f_code.co_name == _handle_signal.__name__:
+    if frame.f_back.f_code.co_name == handle_signal.__name__:
         return
 
     os.killpg(os.getpgrp(), signal_number)
 
+    if signal_number == signal.SIGTERM:
+        logger.critical('Exiting due to TERM signal')
+        sys.exit(EXIT_CODE_FROM_SIGNAL + signal.SIGTERM)
 
-def configure_signals():  # pragma: no cover
+
+def configure_signals():
     '''
     Configure borgmatic's signal handlers to pass relevant signals through to any child processes
     like Borg. Note that SIGINT gets passed through even without these changes.
     '''
     for signal_number in (signal.SIGHUP, signal.SIGTERM, signal.SIGUSR1, signal.SIGUSR2):
-        signal.signal(signal_number, _handle_signal)
+        signal.signal(signal_number, handle_signal)

docs/Dockerfile

@@ -1,9 +1,10 @@
-FROM python:3.8-alpine3.12 as borgmatic
+FROM python:3.8-alpine3.13 as borgmatic
 
 COPY . /app
-RUN pip install --no-cache ruamel.yaml.clib==0.2.2 /app && generate-borgmatic-config && chmod +r /etc/borgmatic/config.yaml
+RUN apk add --no-cache py3-ruamel.yaml py3-ruamel.yaml.clib
+RUN pip install --no-cache /app && generate-borgmatic-config && chmod +r /etc/borgmatic/config.yaml
 RUN borgmatic --help > /command-line.txt \
-    && for action in init prune create check extract export-tar mount umount restore list info borg; do \
+    && for action in init prune compact create check extract export-tar mount umount restore list info borg; do \
            echo -e "\n--------------------------------------------------------------------------------\n" >> /command-line.txt \
            && borgmatic "$action" --help >> /command-line.txt; done
 

docs/_includes/index.css

@@ -258,6 +258,7 @@ footer.elv-layout {
 /* Header */
 .elv-header {
 	position: relative;
+        text-align: center;
 }
 .elv-header-default {
 	display: flex;

docs/how-to/add-preparation-and-cleanup-steps-to-backups.md

@@ -33,9 +33,33 @@ configuration file, right before the `create` action. `after_backup` hooks run
 afterwards, but not if an error occurs in a previous hook or in the backups
 themselves.
 
-There are additional hooks for the `prune` and `check` actions as well.
+There are additional hooks that run before/after other actions as well. For
-`before_prune` and `after_prune` run if there are any `prune` actions, while
+instance, `before_prune` runs before a `prune` action, while `after_prune`
-`before_check` and `after_check` run if there are any `check` actions.
+runs after it.
+
+## Variable interpolation
+
+The before and after action hooks support interpolating particular runtime
+variables into the hook command. Here's an example that assumes you provide a
+separate shell script:
+
+```yaml
+hooks:
+    after_prune:
+        - record-prune.sh "{configuration_filename}" "{repositories}"
+```
+
+In this example, when the hook is triggered, borgmatic interpolates runtime
+values into the hook command: the borgmatic configuration filename and the
+paths of all configured repositories. Here's the full set of supported
+variables you can use here:
+
+ * `configuration_filename`: borgmatic configuration filename in which the
+   hook was defined
+ * `repositories`: comma-separated paths of all repositories configured in the
+   current borgmatic configuration file
+
+## Global hooks
 
 You can also use `before_everything` and `after_everything` hooks to perform
 global setup or cleanup:
@@ -58,6 +82,8 @@ but only if there is a `create` action. It runs even if an error occurs during
 a backup or a backup hook, but not if an error occurs during a
 `before_everything` hook.
 
+## Error hooks
+
 borgmatic also runs `on_error` hooks if an error occurs, either when creating
 a backup or running a backup hook. See the [monitoring and alerting
 documentation](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)

docs/how-to/backup-to-a-removable-drive-or-an-intermittent-server.md

@@ -115,6 +115,6 @@ There are some caveats you should be aware of with this feature.
  * The soft failure doesn't have to apply to a repository. You can even perform
    a test to make sure that individual source directories are mounted and
    available. Use your imagination!
- * The soft failure feature also works for `before_prune`, `after_prune`,
+ * The soft failure feature also works for before/after hooks for other
-   `before_check`, and `after_check` hooks. But it is not implemented for
+   actions as well. But it is not implemented for `before_everything` or
-   `before_everything` or `after_everything`.
+   `after_everything`.

docs/how-to/backup-your-databases.md

@@ -15,7 +15,8 @@ consistent snapshot that is more suited for backups.
 
 Fortunately, borgmatic includes built-in support for creating database dumps
 prior to running backups. For example, here is everything you need to dump and
-backup a couple of local PostgreSQL databases and a MySQL/MariaDB database:
+backup a couple of local PostgreSQL databases, a MySQL/MariaDB database, and a
+MongoDB database:
 
 ```yaml
 hooks:
@@ -24,12 +25,15 @@ hooks:
         - name: orders
     mysql_databases:
         - name: posts
+    mongodb_databases:
+        - name: messages
 ```
 
 As part of each backup, borgmatic streams a database dump for each configured
 database directly to Borg, so it's included in the backup without consuming
-additional disk space. (The one exception is PostgreSQL's "directory" dump
+additional disk space. (The exceptions are the PostgreSQL/MongoDB "directory"
-format, which can't stream and therefore does consume temporary disk space.)
+dump formats, which can't stream and therefore do consume temporary disk
+space.)
 
 To support this, borgmatic creates temporary named pipes in `~/.borgmatic` by
 default. To customize this path, set the `borgmatic_source_directory` option
@@ -59,6 +63,14 @@ hooks:
           username: root
           password: trustsome1
           options: "--skip-comments"
+    mongodb_databases:
+        - name: messages
+          hostname: database3.example.org
+          port: 27018
+          username: dbuser
+          password: trustsome1
+          authentication_database: mongousers
+          options: "--ssl"
 ```
 
 If you want to dump all databases on a host, use `all` for the database name:
@@ -69,13 +81,15 @@ hooks:
         - name: all
     mysql_databases:
         - name: all
+    mongodb_databases:
+        - name: all
 ```
 
 Note that you may need to use a `username` of the `postgres` superuser for
 this to work with PostgreSQL.
 
 If you would like to backup databases only and not source directories, you can
-specify an empty `source_directories` value because it is a mandatory field:
+specify an empty `source_directories` value (as it is a mandatory field):
 
 ```yaml
 location:
@@ -97,7 +111,7 @@ bring back any missing configuration files in order to restore a database.
 
 ## Supported databases
 
-As of now, borgmatic supports PostgreSQL and MySQL/MariaDB databases
+As of now, borgmatic supports PostgreSQL, MySQL/MariaDB, and MongoDB databases
 directly. But see below about general-purpose preparation and cleanup hooks as
 a work-around with other database systems. Also, please [file a
 ticket](https://torsion.org/borgmatic/#issues) for additional database systems
@@ -185,10 +199,10 @@ backups to avoid getting caught without a way to restore a database.
 databases that share the exact same name on different hosts.
 4. Because database hooks implicitly enable the `read_special` configuration
 setting to support dump and restore streaming, you'll need to ensure that any
-special files are excluded from backups (named pipes, block devices, and
+special files are excluded from backups (named pipes, block devices,
-character devices) to prevent hanging. Try a command like `find / -type c,b,p`
+character devices, and sockets) to prevent hanging. Try a command like
-to find such files. Common directories to exclude are `/dev` and `/run`, but
+`find /your/source/path -type c,b,p,s` to find such files. Common directories
-that may not be exhaustive.
+to exclude are `/dev` and `/run`, but that may not be exhaustive.
 
 
 ### Manual restoration
@@ -196,8 +210,8 @@ that may not be exhaustive.
 If you prefer to restore a database without the help of borgmatic, first
 [extract](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/) an
 archive containing a database dump, and then manually restore the dump file
-found within the extracted `~/.borgmatic/` path (e.g. with `pg_restore` or
+found within the extracted `~/.borgmatic/` path (e.g. with `pg_restore`,
-`mysql` commands).
+`mysql`, or `mongorestore`, commands).
 
 
 ## Preparation and cleanup hooks
@@ -230,5 +244,10 @@ hooks:
 ### borgmatic hangs during backup
 
 See Limitations above about `read_special`. You may need to exclude certain
-paths with named pipes, block devices, or character devices on which borgmatic
+paths with named pipes, block devices, character devices, or sockets on which
-is hanging.
+borgmatic is hanging.
+
+Alternatively, if excluding special files is too onerous, you can create two
+separate borgmatic configuration files—one for your source files and a
+separate one for backing up databases. That way, the database `read_special`
+option will not be active when backing up special files.

docs/how-to/deal-with-very-large-backups.md

@@ -9,19 +9,20 @@ eleventyNavigation:
 
 Borg itself is great for efficiently de-duplicating data across successive
 backup archives, even when dealing with very large repositories. But you may
-find that while borgmatic's default mode of "prune, create, and check" works
+find that while borgmatic's default mode of `prune`, `compact`, `create`, and
-well on small repositories, it's not so great on larger ones. That's because
+`check` works well on small repositories, it's not so great on larger ones.
-running the default pruning and consistency checks take a long time on large
+That's because running the default pruning, compact, and consistency checks
-repositories.
+take a long time on large repositories.
 
 ### A la carte actions
 
 If you find yourself in this situation, you have some options. First, you can
-run borgmatic's pruning, creating, or checking actions separately. For
+run borgmatic's `prune`, `compact`, `create`, or `check` actions separately.
-instance, the following optional actions are available:
+For instance, the following optional actions are available:
 
 ```bash
 borgmatic prune
+borgmatic compact
 borgmatic create
 borgmatic check
 ```
@@ -32,7 +33,7 @@ borgmatic check
 You can run with only one of these actions provided, or you can mix and match
 any number of them in a single borgmatic run. This supports approaches like
 skipping certain actions while running others. For instance, this skips
-`prune` and only runs `create` and `check`:
+`prune` and `compact` and only runs `create` and `check`:
 
 ```bash
 borgmatic create check

docs/how-to/develop-on-borgmatic.md

@@ -20,7 +20,7 @@ git clone ssh://git@projects.torsion.org:3022/borgmatic-collective/borgmatic.git
 ```
 
 Then, install borgmatic
-"[editable](https://pip.pypa.io/en/stable/reference/pip_install/#editable-installs)"
+"[editable](https://pip.pypa.io/en/stable/cli/pip_install/#editable-installs)"
 so that you can run borgmatic commands while you're hacking on them to
 make sure your changes work.
 

docs/how-to/make-backups-redundant.md

@@ -22,7 +22,6 @@ location:
     repositories:
         - 1234@usw-s001.rsync.net:backups.borg
         - k8pDxu32@k8pDxu32.repo.borgbase.com:repo
-        - user1@scp2.cdn.lima-labs.com:repo
         - /var/lib/backups/local.borg
 ```
 
@@ -35,8 +34,7 @@ Here's a way of visualizing what borgmatic does with the above configuration:
 
 1. Backup `/home` and `/etc` to `1234@usw-s001.rsync.net:backups.borg`
 2. Backup `/home` and `/etc` to `k8pDxu32@k8pDxu32.repo.borgbase.com:repo`
-3. Backup `/home` and `/etc` to `user1@scp2.cdn.lima-labs.com:repo`
+3. Backup `/home` and `/etc` to `/var/lib/backups/local.borg`
-4. Backup `/home` and `/etc` to `/var/lib/backups/local.borg`
 
 This gives you redundancy of your data across repositories and even
 potentially across providers.

docs/how-to/monitor-your-backups.md

@@ -83,10 +83,10 @@ tests](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/).
 
 ## Error hooks
 
-When an error occurs during a `prune`, `create`, or `check` action, borgmatic
+When an error occurs during a `prune`, `compact`, `create`, or `check` action,
-can run configurable shell commands to fire off custom error notifications or
+borgmatic can run configurable shell commands to fire off custom error
-take other actions, so you can get alerted as soon as something goes wrong.
+notifications or take other actions, so you can get alerted as soon as
-Here's a not-so-useful example:
+something goes wrong. Here's a not-so-useful example:
 
 ```yaml
 hooks:
@@ -104,10 +104,9 @@ hooks:
         - send-text-message.sh "{configuration_filename}" "{repository}"
 ```
 
-In this example, when the error occurs, borgmatic interpolates a few runtime
+In this example, when the error occurs, borgmatic interpolates runtime values
-values into the hook command: the borgmatic configuration filename, and the
+into the hook command: the borgmatic configuration filename, and the path of
-path of the repository. Here's the full set of supported variables you can use
+the repository. Here's the full set of supported variables you can use here:
-here:
 
  * `configuration_filename`: borgmatic configuration filename in which the
    error occurred
@@ -117,9 +116,9 @@ here:
  * `output`: output of the command that failed (may be blank if an error
    occurred without running a command)
 
-Note that borgmatic runs the `on_error` hooks only for `prune`, `create`, or
+Note that borgmatic runs the `on_error` hooks only for `prune`, `compact`,
-`check` actions or hooks in which an error occurs, and not other actions. 
+`create`, or `check` actions or hooks in which an error occurs, and not other
-borgmatic does not run `on_error` hooks if an error occurs within a
+actions. borgmatic does not run `on_error` hooks if an error occurs within a
 `before_everything` or `after_everything` hook. For more about hooks, see the
 [borgmatic hooks
 documentation](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/),
@@ -144,7 +143,7 @@ With this hook in place, borgmatic pings your Healthchecks project when a
 backup begins, ends, or errors. Specifically, after the <a
 href="https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/">`before_backup`
 hooks</a> run, borgmatic lets Healthchecks know that it has started if any of
-the `prune`, `create`, or `check` actions are run.
+the `prune`, `compact`, `create`, or `check` actions are run.
 
 Then, if the actions complete successfully, borgmatic notifies Healthchecks of
 the success after the `after_backup` hooks run, and includes borgmatic logs in
@@ -155,7 +154,7 @@ in the Healthchecks UI, although be aware that Healthchecks currently has a
 If an error occurs during any action or hook, borgmatic notifies Healthchecks
 after the `on_error` hooks run, also tacking on logs including the error
 itself. But the logs are only included for errors that occur when a `prune`,
-`create`, or `check` action is run.
+`compact`, `create`, or `check` action is run.
 
 You can customize the verbosity of the logs that are sent to Healthchecks with
 borgmatic's `--monitoring-verbosity` flag. The `--files` and `--stats` flags
@@ -184,8 +183,8 @@ With this hook in place, borgmatic pings your Cronitor monitor when a backup
 begins, ends, or errors. Specifically, after the <a
 href="https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/">`before_backup`
 hooks</a> run, borgmatic lets Cronitor know that it has started if any of the
-`prune`, `create`, or `check` actions are run. Then, if the actions complete
+`prune`, `compact`, `create`, or `check` actions are run. Then, if the actions
-successfully, borgmatic notifies Cronitor of the success after the
+complete successfully, borgmatic notifies Cronitor of the success after the
 `after_backup` hooks run. And if an error occurs during any action or hook,
 borgmatic notifies Cronitor after the `on_error` hooks run.
 
@@ -212,8 +211,8 @@ With this hook in place, borgmatic pings your Cronhub monitor when a backup
 begins, ends, or errors. Specifically, after the <a
 href="https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/">`before_backup`
 hooks</a> run, borgmatic lets Cronhub know that it has started if any of the
-`prune`, `create`, or `check` actions are run. Then, if the actions complete
+`prune`, `compact`, `create`, or `check` actions are run. Then, if the actions
-successfully, borgmatic notifies Cronhub of the success after the
+complete successfully, borgmatic notifies Cronhub of the success after the
 `after_backup` hooks run. And if an error occurs during any action or hook,
 borgmatic notifies Cronhub after the `on_error` hooks run.
 
@@ -252,9 +251,9 @@ hooks:
 
 With this hook in place, borgmatic creates a PagerDuty event for your service
 whenever backups fail. Specifically, if an error occurs during a `create`,
-`prune`, or `check` action, borgmatic sends an event to PagerDuty before the
+`prune`, `compact`, or `check` action, borgmatic sends an event to PagerDuty
-`on_error` hooks run. Note that borgmatic does not contact PagerDuty when a
+before the `on_error` hooks run. Note that borgmatic does not contact
-backup starts or ends without error.
+PagerDuty when a backup starts or ends without error.
 
 You can configure PagerDuty to notify you by a [variety of
 mechanisms](https://support.pagerduty.com/docs/notifications) when backups

docs/how-to/set-up-backups.md

@@ -28,7 +28,7 @@ sudo pip3 install --user --upgrade borgmatic
 This installs borgmatic and its commands at the `/root/.local/bin` path.
 
 Your pip binary may have a different name than "pip3". Make sure you're using
-Python 3.6+, as borgmatic does not support Python 2.
+Python 3.7+, as borgmatic does not support older versions of Python.
 
 The next step is to ensure that borgmatic's commands available are on your
 system `PATH`, so that you can run borgmatic:
@@ -100,14 +100,12 @@ development and hosting when you use these links to sign up. (These are
 referral links, but without any tracking scripts or cookies.)
 
 <ul>
- <li class="referral"><a href="https://www.rsync.net/cgi-bin/borg.cgi?campaign=borg&adgroup=borgmatic">rsync.net</a>: Cloud Storage provider with full support for borg and any other SSH/SFTP tool</li>
  <li class="referral"><a href="https://www.borgbase.com/?utm_source=borgmatic">BorgBase</a>: Borg hosting service with support for monitoring, 2FA, and append-only repos</li>
- <li class="referral"><a href="https://storage.lima-labs.com/special-pricing-offer-for-borgmatic-users/">Lima-Labs</a>: Affordable, reliable cloud data storage accessable via SSH/SCP/FTP for Borg backups or any other bulk storage needs</li>
 </ul>
 
-Additionally, [Hetzner](https://www.hetzner.com/storage/storage-box) has a
+Additionally, [rsync.net](https://www.rsync.net/products/borg.html) and
-compatible storage offering, but does not currently fund borgmatic
+[Hetzner](https://www.hetzner.com/storage/storage-box) have compatible storage
-development or hosting.
+offerings, but do not currently fund borgmatic development or hosting.
 
 ## Configuration
 
@@ -229,8 +227,8 @@ sudo borgmatic --verbosity 1 --files
 borgmatic. So try leaving it out, or upgrade borgmatic!)
 
 By default, this will also prune any old backups as per the configured
-retention policy, and check backups for consistency problems due to things
+retention policy, compact segments to free up space (with Borg 1.2+), and
-like file damage.
+check backups for consistency problems due to things like file damage.
 
 The verbosity flag makes borgmatic show the steps it's performing. And the
 files flag lists each file that's new or changed since the last backup.

sample/systemd/borgmatic.service

@@ -43,6 +43,7 @@ ProtectSystem=full
 # ProtectHome=tmpfs
 # BindPaths=-/root/.cache/borg -/root/.cache/borg -/root/.borgmatic
 
+# May interfere with running external programs within borgmatic hooks.
 CapabilityBoundingSet=CAP_DAC_READ_SEARCH CAP_NET_RAW
 
 # Lower CPU and I/O priority.

scripts/find-unsupported-borg-options

@@ -38,7 +38,7 @@ for sub_command in prune create check list info; do
             | grep -v '^--json$' \
             | grep -v '^--keep-last$' \
             | grep -v '^--list$' \
-            | grep -v '^--nobsdflags$' \
+            | grep -v '^--bsdflags$' \
             | grep -v '^--pattern$' \
             | grep -v '^--progress$' \
             | grep -v '^--stats$' \
@@ -54,7 +54,7 @@ for sub_command in prune create check list info; do
             | grep -v '^--format' \
             | grep -v '^--glob-archives' \
             | grep -v '^--last' \
-            | grep -v '^--list-format' \
+            | grep -v '^--format' \
             | grep -v '^--patterns-from' \
             | grep -v '^--prefix' \
             | grep -v '^--short' \

scripts/release

@@ -31,8 +31,8 @@ python3 setup.py bdist_wheel
 python3 setup.py sdist
 gpg --detach-sign --armor dist/borgmatic-*.tar.gz
 gpg --detach-sign --armor dist/borgmatic-*-py3-none-any.whl
-twine upload -r pypi dist/borgmatic-*.tar.gz dist/borgmatic-*.tar.gz.asc
+twine upload -r pypi --username __token__ dist/borgmatic-*.tar.gz dist/borgmatic-*.tar.gz.asc
-twine upload -r pypi dist/borgmatic-*-py3-none-any.whl dist/borgmatic-*-py3-none-any.whl.asc
+twine upload -r pypi --username __token__ dist/borgmatic-*-py3-none-any.whl dist/borgmatic-*-py3-none-any.whl.asc
 
 # Set release changelogs on projects.torsion.org and GitHub.
 release_changelog="$(cat NEWS | sed '/^$/q' | grep -v '^\S')"

scripts/run-full-tests

@@ -10,11 +10,12 @@
 
 set -e
 
-apk add --no-cache python3 py3-pip borgbackup postgresql-client mariadb-client
+apk add --no-cache python3 py3-pip borgbackup postgresql-client mariadb-client mongodb-tools \
+    py3-ruamel.yaml py3-ruamel.yaml.clib
 # If certain dependencies of black are available in this version of Alpine, install them.
 apk add --no-cache py3-typed-ast py3-regex || true
-python3 -m pip install --upgrade pip==20.2.4 setuptools==50.3.2
+python3 -m pip install --no-cache --upgrade pip==22.0.3 setuptools==60.8.1
-pip3 install tox==3.20.1
+pip3 install tox==3.24.5
 export COVERAGE_FILE=/tmp/.coverage
 tox --workdir /tmp/.tox --sitepackages
 tox --workdir /tmp/.tox --sitepackages -e end-to-end

setup.py

@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = '1.5.19.dev0'
+VERSION = '1.5.25.dev0'
 
 
 setup(
@@ -37,4 +37,5 @@ setup(
         'colorama>=0.4.1,<0.5',
     ),
     include_package_data=True,
+    python_requires='>3.7.0',
 )

test_requirements.txt

@@ -4,20 +4,20 @@ black==19.10b0; python_version >= '3.8'
 click==7.1.2; python_version >= '3.8'
 colorama==0.4.4
 coverage==5.3
-flake8==3.8.4
+flake8==4.0.1
 flexmock==0.10.4
 isort==5.9.1
 mccabe==0.6.1
 pluggy==0.13.1
 pathspec==0.8.1; python_version >= '3.8'
 py==1.10.0
-pycodestyle==2.6.0
+pycodestyle==2.8.0
-pyflakes==2.2.0
+pyflakes==2.4.0
 jsonschema==3.2.0
-pytest==6.1.2
+pytest==6.2.5
-pytest-cov==2.10.1
+pytest-cov==3.0.0
 regex; python_version >= '3.8'
 requests==2.25.0
 ruamel.yaml>0.15.0,<0.18.0
 toml==0.10.2; python_version >= '3.8'
-typed-ast==1.4.2; python_version >= '3.8'
+typed-ast; python_version >= '3.8'

tests/end-to-end/docker-compose.yaml

@@ -10,6 +10,11 @@ services:
     environment:
       MYSQL_ROOT_PASSWORD: test
       MYSQL_DATABASE: test
+  mongodb:
+    image: mongo:5.0.5
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: root
+      MONGO_INITDB_ROOT_PASSWORD: test
   tests:
     image: alpine:3.13
     volumes:

tests/end-to-end/test_database.py

@@ -47,13 +47,22 @@ hooks:
           hostname: mysql
           username: root
           password: test
+    mongodb_databases:
+        - name: test
+          hostname: mongodb
+          username: root
+          password: test
+          authentication_database: admin
+        - name: all
+          hostname: mongodb
+          username: root
+          password: test
 '''.format(
         config_path, repository_path, borgmatic_source_directory, postgresql_dump_format
     )
 
-    config_file = open(config_path, 'w')
+    with open(config_path, 'w') as config_file:
-    config_file.write(config)
+        config_file.write(config)
-    config_file.close()
 
 
 def test_database_dump_and_restore():
@@ -69,15 +78,15 @@ def test_database_dump_and_restore():
         write_configuration(config_path, repository_path, borgmatic_source_directory)
 
         subprocess.check_call(
-            'borgmatic -v 2 --config {} init --encryption repokey'.format(config_path).split(' ')
+            ['borgmatic', '-v', '2', '--config', config_path, 'init', '--encryption', 'repokey']
         )
 
         # Run borgmatic to generate a backup archive including a database dump.
-        subprocess.check_call('borgmatic create --config {} -v 2'.format(config_path).split(' '))
+        subprocess.check_call(['borgmatic', 'create', '--config', config_path, '-v', '2'])
 
         # Get the created archive name.
         output = subprocess.check_output(
-            'borgmatic --config {} list --json'.format(config_path).split(' ')
+            ['borgmatic', '--config', config_path, 'list', '--json']
         ).decode(sys.stdout.encoding)
         parsed_output = json.loads(output)
 
@@ -87,9 +96,7 @@ def test_database_dump_and_restore():
 
         # Restore the database from the archive.
         subprocess.check_call(
-            'borgmatic --config {} restore --archive {}'.format(config_path, archive_name).split(
+            ['borgmatic', '--config', config_path, 'restore', '--archive', archive_name]
-                ' '
-            )
         )
     finally:
         os.chdir(original_working_directory)
@@ -114,15 +121,15 @@ def test_database_dump_and_restore_with_directory_format():
         )
 
         subprocess.check_call(
-            'borgmatic -v 2 --config {} init --encryption repokey'.format(config_path).split(' ')
+            ['borgmatic', '-v', '2', '--config', config_path, 'init', '--encryption', 'repokey']
         )
 
         # Run borgmatic to generate a backup archive including a database dump.
-        subprocess.check_call('borgmatic create --config {} -v 2'.format(config_path).split(' '))
+        subprocess.check_call(['borgmatic', 'create', '--config', config_path, '-v', '2'])
 
         # Restore the database from the archive.
         subprocess.check_call(
-            'borgmatic --config {} restore --archive latest'.format(config_path).split(' ')
+            ['borgmatic', '--config', config_path, 'restore', '--archive', 'latest']
         )
     finally:
         os.chdir(original_working_directory)
@@ -142,7 +149,7 @@ def test_database_dump_with_error_causes_borgmatic_to_exit():
         write_configuration(config_path, repository_path, borgmatic_source_directory)
 
         subprocess.check_call(
-            'borgmatic -v 2 --config {} init --encryption repokey'.format(config_path).split(' ')
+            ['borgmatic', '-v', '2', '--config', config_path, 'init', '--encryption', 'repokey']
         )
 
         # Run borgmatic with a config override such that the database dump fails.

tests/integration/borg/test_feature.py

@@ -0,0 +1,17 @@
+from borgmatic.borg import feature as module
+
+
+def test_available_true_for_new_enough_borg_version():
+    assert module.available(module.Feature.COMPACT, '1.3.7')
+
+
+def test_available_true_for_borg_version_introducing_feature():
+    assert module.available(module.Feature.COMPACT, '1.2.0a2')
+
+
+def test_available_true_for_borg_stable_version_introducing_feature():
+    assert module.available(module.Feature.COMPACT, '1.2.0')
+
+
+def test_available_false_for_too_old_borg_version():
+    assert not module.available(module.Feature.COMPACT, '1.1.5')

tests/unit/borg/test_compact.py

@@ -0,0 +1,110 @@
+import logging
+
+from flexmock import flexmock
+
+from borgmatic.borg import compact as module
+
+from ..test_verbosity import insert_logging_mock
+
+
+def insert_execute_command_mock(compact_command, output_log_level):
+    flexmock(module).should_receive('execute_command').with_args(
+        compact_command, output_log_level=output_log_level, borg_local_path=compact_command[0]
+    ).once()
+
+
+COMPACT_COMMAND = ('borg', 'compact')
+
+
+def test_compact_segments_calls_borg_with_parameters():
+    insert_execute_command_mock(COMPACT_COMMAND + ('repo',), logging.INFO)
+
+    module.compact_segments(dry_run=False, repository='repo', storage_config={})
+
+
+def test_compact_segments_with_log_info_calls_borg_with_info_parameter():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--info', 'repo'), logging.INFO)
+    insert_logging_mock(logging.INFO)
+
+    module.compact_segments(repository='repo', storage_config={}, dry_run=False)
+
+
+def test_compact_segments_with_log_debug_calls_borg_with_debug_parameter():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--debug', '--show-rc', 'repo'), logging.INFO)
+    insert_logging_mock(logging.DEBUG)
+
+    module.compact_segments(repository='repo', storage_config={}, dry_run=False)
+
+
+def test_compact_segments_with_dry_run_skips_borg_call():
+    flexmock(module).should_receive('execute_command').never()
+
+    module.compact_segments(repository='repo', storage_config={}, dry_run=True)
+
+
+def test_compact_segments_with_local_path_calls_borg_via_local_path():
+    insert_execute_command_mock(('borg1',) + COMPACT_COMMAND[1:] + ('repo',), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config={}, local_path='borg1',
+    )
+
+
+def test_compact_segments_with_remote_path_calls_borg_with_remote_path_parameters():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--remote-path', 'borg1', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config={}, remote_path='borg1',
+    )
+
+
+def test_compact_segments_with_progress_calls_borg_with_progress_parameter():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--progress', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config={}, progress=True,
+    )
+
+
+def test_compact_segments_with_cleanup_commits_calls_borg_with_cleanup_commits_parameter():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--cleanup-commits', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config={}, cleanup_commits=True,
+    )
+
+
+def test_compact_segments_with_threshold_calls_borg_with_threshold_parameter():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--threshold', '20', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config={}, threshold=20,
+    )
+
+
+def test_compact_segments_with_umask_calls_borg_with_umask_parameters():
+    storage_config = {'umask': '077'}
+    insert_execute_command_mock(COMPACT_COMMAND + ('--umask', '077', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config=storage_config,
+    )
+
+
+def test_compact_segments_with_lock_wait_calls_borg_with_lock_wait_parameters():
+    storage_config = {'lock_wait': 5}
+    insert_execute_command_mock(COMPACT_COMMAND + ('--lock-wait', '5', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False, repository='repo', storage_config=storage_config,
+    )
+
+
+def test_compact_segments_with_extra_borg_options_calls_borg_with_extra_options():
+    insert_execute_command_mock(COMPACT_COMMAND + ('--extra', '--options', 'repo'), logging.INFO)
+
+    module.compact_segments(
+        dry_run=False,
+        repository='repo',
+        storage_config={'extra_borg_options': {'compact': '--extra --options'}},
+    )

tests/unit/borg/test_extract.py

@@ -25,12 +25,14 @@ def test_extract_last_archive_dry_run_calls_borg_with_last_archive():
         ('borg', 'list', '--short', 'repo'), result='archive1\narchive2\n'
     )
     insert_execute_command_mock(('borg', 'extract', '--dry-run', 'repo::archive2'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None)
 
 
 def test_extract_last_archive_dry_run_without_any_archives_should_not_raise():
     insert_execute_command_output_mock(('borg', 'list', '--short', 'repo'), result='\n')
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None)
 
@@ -41,6 +43,7 @@ def test_extract_last_archive_dry_run_with_log_info_calls_borg_with_info_paramet
     )
     insert_execute_command_mock(('borg', 'extract', '--dry-run', '--info', 'repo::archive2'))
     insert_logging_mock(logging.INFO)
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None)
 
@@ -53,6 +56,7 @@ def test_extract_last_archive_dry_run_with_log_debug_calls_borg_with_debug_param
         ('borg', 'extract', '--dry-run', '--debug', '--show-rc', '--list', 'repo::archive2')
     )
     insert_logging_mock(logging.DEBUG)
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None)
 
@@ -62,6 +66,7 @@ def test_extract_last_archive_dry_run_calls_borg_via_local_path():
         ('borg1', 'list', '--short', 'repo'), result='archive1\narchive2\n'
     )
     insert_execute_command_mock(('borg1', 'extract', '--dry-run', 'repo::archive2'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None, local_path='borg1')
 
@@ -73,6 +78,7 @@ def test_extract_last_archive_dry_run_calls_borg_with_remote_path_parameters():
     insert_execute_command_mock(
         ('borg', 'extract', '--dry-run', '--remote-path', 'borg1', 'repo::archive2')
     )
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=None, remote_path='borg1')
 
@@ -84,6 +90,7 @@ def test_extract_last_archive_dry_run_calls_borg_with_lock_wait_parameters():
     insert_execute_command_mock(
         ('borg', 'extract', '--dry-run', '--lock-wait', '5', 'repo::archive2')
     )
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_last_archive_dry_run(repository='repo', lock_wait=5)
 
@@ -91,6 +98,7 @@ def test_extract_last_archive_dry_run_calls_borg_with_lock_wait_parameters():
 def test_extract_archive_calls_borg_with_path_parameters():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', 'repo::archive', 'path1', 'path2'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -99,12 +107,14 @@ def test_extract_archive_calls_borg_with_path_parameters():
         paths=['path1', 'path2'],
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
     )
 
 
 def test_extract_archive_calls_borg_with_remote_path_parameters():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--remote-path', 'borg1', 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -113,13 +123,18 @@ def test_extract_archive_calls_borg_with_remote_path_parameters():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
         remote_path='borg1',
     )
 
 
-def test_extract_archive_calls_borg_with_numeric_owner_parameter():
+@pytest.mark.parametrize(
+    'feature_available,option_flag', ((True, '--numeric-ids'), (False, '--numeric-owner'),),
+)
+def test_extract_archive_calls_borg_with_numeric_ids_parameter(feature_available, option_flag):
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
-    insert_execute_command_mock(('borg', 'extract', '--numeric-owner', 'repo::archive'))
+    insert_execute_command_mock(('borg', 'extract', option_flag, 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(feature_available)
 
     module.extract_archive(
         dry_run=False,
@@ -128,12 +143,14 @@ def test_extract_archive_calls_borg_with_numeric_owner_parameter():
         paths=None,
         location_config={'numeric_owner': True},
         storage_config={},
+        local_borg_version='1.2.3',
     )
 
 
 def test_extract_archive_calls_borg_with_umask_parameters():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--umask', '0770', 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -142,12 +159,14 @@ def test_extract_archive_calls_borg_with_umask_parameters():
         paths=None,
         location_config={},
         storage_config={'umask': '0770'},
+        local_borg_version='1.2.3',
     )
 
 
 def test_extract_archive_calls_borg_with_lock_wait_parameters():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--lock-wait', '5', 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -156,6 +175,7 @@ def test_extract_archive_calls_borg_with_lock_wait_parameters():
         paths=None,
         location_config={},
         storage_config={'lock_wait': '5'},
+        local_borg_version='1.2.3',
     )
 
 
@@ -163,6 +183,7 @@ def test_extract_archive_with_log_info_calls_borg_with_info_parameter():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--info', 'repo::archive'))
     insert_logging_mock(logging.INFO)
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -171,6 +192,7 @@ def test_extract_archive_with_log_info_calls_borg_with_info_parameter():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
     )
 
 
@@ -180,6 +202,7 @@ def test_extract_archive_with_log_debug_calls_borg_with_debug_parameters():
         ('borg', 'extract', '--debug', '--list', '--show-rc', 'repo::archive')
     )
     insert_logging_mock(logging.DEBUG)
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -188,12 +211,14 @@ def test_extract_archive_with_log_debug_calls_borg_with_debug_parameters():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
     )
 
 
 def test_extract_archive_calls_borg_with_dry_run_parameter():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--dry-run', 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=True,
@@ -202,12 +227,14 @@ def test_extract_archive_calls_borg_with_dry_run_parameter():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
     )
 
 
 def test_extract_archive_calls_borg_with_destination_path():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', 'repo::archive'), working_directory='/dest')
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -216,6 +243,7 @@ def test_extract_archive_calls_borg_with_destination_path():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
         destination_path='/dest',
     )
 
@@ -223,6 +251,7 @@ def test_extract_archive_calls_borg_with_destination_path():
 def test_extract_archive_calls_borg_with_strip_components():
     flexmock(module.os.path).should_receive('abspath').and_return('repo')
     insert_execute_command_mock(('borg', 'extract', '--strip-components', '5', 'repo::archive'))
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -231,6 +260,7 @@ def test_extract_archive_calls_borg_with_strip_components():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
         strip_components=5,
     )
 
@@ -242,6 +272,7 @@ def test_extract_archive_calls_borg_with_progress_parameter():
         output_file=module.DO_NOT_CAPTURE,
         working_directory=None,
     ).once()
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -250,6 +281,7 @@ def test_extract_archive_calls_borg_with_progress_parameter():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
         progress=True,
     )
 
@@ -265,6 +297,7 @@ def test_extract_archive_with_progress_and_extract_to_stdout_raises():
             paths=None,
             location_config={},
             storage_config={},
+            local_borg_version='1.2.3',
             progress=True,
             extract_to_stdout=True,
         )
@@ -279,6 +312,7 @@ def test_extract_archive_calls_borg_with_stdout_parameter_and_returns_process():
         working_directory=None,
         run_to_completion=False,
     ).and_return(process).once()
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     assert (
         module.extract_archive(
@@ -288,6 +322,7 @@ def test_extract_archive_calls_borg_with_stdout_parameter_and_returns_process():
             paths=None,
             location_config={},
             storage_config={},
+            local_borg_version='1.2.3',
             extract_to_stdout=True,
         )
         == process
@@ -299,6 +334,7 @@ def test_extract_archive_skips_abspath_for_remote_repository():
     flexmock(module).should_receive('execute_command').with_args(
         ('borg', 'extract', 'server:repo::archive'), working_directory=None
     ).once()
+    flexmock(module.feature).should_receive('available').and_return(True)
 
     module.extract_archive(
         dry_run=False,
@@ -307,4 +343,5 @@ def test_extract_archive_skips_abspath_for_remote_repository():
         paths=None,
         location_config={},
         storage_config={},
+        local_borg_version='1.2.3',
     )

tests/unit/borg/test_version.py

@@ -0,0 +1,49 @@
+import logging
+
+import pytest
+from flexmock import flexmock
+
+from borgmatic.borg import version as module
+
+from ..test_verbosity import insert_logging_mock
+
+VERSION = '1.2.3'
+
+
+def insert_execute_command_mock(command, borg_local_path='borg', version_output=f'borg {VERSION}'):
+    flexmock(module).should_receive('execute_command').with_args(
+        command, output_log_level=None, borg_local_path=borg_local_path
+    ).once().and_return(version_output)
+
+
+def test_local_borg_version_calls_borg_with_required_parameters():
+    insert_execute_command_mock(('borg', '--version'))
+
+    assert module.local_borg_version() == VERSION
+
+
+def test_local_borg_version_with_log_info_calls_borg_with_info_parameter():
+    insert_execute_command_mock(('borg', '--version', '--info'))
+    insert_logging_mock(logging.INFO)
+
+    assert module.local_borg_version() == VERSION
+
+
+def test_local_borg_version_with_log_debug_calls_borg_with_debug_parameters():
+    insert_execute_command_mock(('borg', '--version', '--debug', '--show-rc'))
+    insert_logging_mock(logging.DEBUG)
+
+    assert module.local_borg_version() == VERSION
+
+
+def test_local_borg_version_with_local_borg_path_calls_borg_with_it():
+    insert_execute_command_mock(('borg1', '--version'), borg_local_path='borg1')
+
+    assert module.local_borg_version('borg1') == VERSION
+
+
+def test_local_borg_version_with_invalid_version_raises():
+    insert_execute_command_mock(('borg', '--version'), version_output='wtf')
+
+    with pytest.raises(ValueError):
+        module.local_borg_version()

tests/unit/commands/test_arguments.py

@@ -72,12 +72,14 @@ def test_parse_subparser_arguments_consumes_multiple_subparser_arguments():
 
 def test_parse_subparser_arguments_applies_default_subparsers():
     prune_namespace = flexmock()
+    compact_namespace = flexmock()
     create_namespace = flexmock(progress=True)
     check_namespace = flexmock()
     subparsers = {
         'prune': flexmock(
             parse_known_args=lambda arguments: (prune_namespace, ['prune', '--progress'])
         ),
+        'compact': flexmock(parse_known_args=lambda arguments: (compact_namespace, [])),
         'create': flexmock(parse_known_args=lambda arguments: (create_namespace, [])),
         'check': flexmock(parse_known_args=lambda arguments: (check_namespace, [])),
         'other': flexmock(),
@@ -87,6 +89,7 @@ def test_parse_subparser_arguments_applies_default_subparsers():
 
     assert arguments == {
         'prune': prune_namespace,
+        'compact': compact_namespace,
         'create': create_namespace,
         'check': check_namespace,
     }

tests/unit/commands/test_borgmatic.py

@@ -1,5 +1,6 @@
 import logging
 import subprocess
+import time
 
 from flexmock import flexmock
 
@@ -9,6 +10,7 @@ from borgmatic.commands import borgmatic as module
 
 def test_run_configuration_runs_actions_for_each_repository():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     expected_results = [flexmock(), flexmock()]
     flexmock(module).should_receive('run_actions').and_return(expected_results[:1]).and_return(
         expected_results[1:]
@@ -21,8 +23,21 @@ def test_run_configuration_runs_actions_for_each_repository():
     assert results == expected_results
 
 
+def test_run_configuration_with_invalid_borg_version_errors():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_raise(ValueError)
+    flexmock(module.command).should_receive('execute_hook').never()
+    flexmock(module.dispatch).should_receive('call_hooks').never()
+    flexmock(module).should_receive('run_actions').never()
+    config = {'location': {'repositories': ['foo']}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'prune': flexmock()}
+
+    list(module.run_configuration('test.yaml', config, arguments))
+
+
 def test_run_configuration_calls_hooks_for_prune_action():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').twice()
     flexmock(module.dispatch).should_receive('call_hooks').at_least().twice()
     flexmock(module).should_receive('run_actions').and_return([])
@@ -32,8 +47,20 @@ def test_run_configuration_calls_hooks_for_prune_action():
     list(module.run_configuration('test.yaml', config, arguments))
 
 
+def test_run_configuration_calls_hooks_for_compact_action():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook').twice()
+    flexmock(module).should_receive('run_actions').and_return([])
+    config = {'location': {'repositories': ['foo']}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'compact': flexmock()}
+
+    list(module.run_configuration('test.yaml', config, arguments))
+
+
 def test_run_configuration_executes_and_calls_hooks_for_create_action():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').twice()
     flexmock(module.dispatch).should_receive('call_hooks').at_least().twice()
     flexmock(module).should_receive('run_actions').and_return([])
@@ -45,6 +72,7 @@ def test_run_configuration_executes_and_calls_hooks_for_create_action():
 
 def test_run_configuration_calls_hooks_for_check_action():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').twice()
     flexmock(module.dispatch).should_receive('call_hooks').at_least().twice()
     flexmock(module).should_receive('run_actions').and_return([])
@@ -56,6 +84,7 @@ def test_run_configuration_calls_hooks_for_check_action():
 
 def test_run_configuration_calls_hooks_for_extract_action():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').twice()
     flexmock(module.dispatch).should_receive('call_hooks').never()
     flexmock(module).should_receive('run_actions').and_return([])
@@ -67,6 +96,7 @@ def test_run_configuration_calls_hooks_for_extract_action():
 
 def test_run_configuration_does_not_trigger_hooks_for_list_action():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').never()
     flexmock(module.dispatch).should_receive('call_hooks').never()
     flexmock(module).should_receive('run_actions').and_return([])
@@ -78,10 +108,11 @@ def test_run_configuration_does_not_trigger_hooks_for_list_action():
 
 def test_run_configuration_logs_actions_error():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook')
     flexmock(module.dispatch).should_receive('call_hooks')
     expected_results = [flexmock()]
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_results)
+    flexmock(module).should_receive('log_error_records').and_return(expected_results)
     flexmock(module).should_receive('run_actions').and_raise(OSError)
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False)}
@@ -93,9 +124,10 @@ def test_run_configuration_logs_actions_error():
 
 def test_run_configuration_logs_pre_hook_error():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').and_raise(OSError).and_return(None)
     expected_results = [flexmock()]
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_results)
+    flexmock(module).should_receive('log_error_records').and_return(expected_results)
     flexmock(module).should_receive('run_actions').never()
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
@@ -107,9 +139,10 @@ def test_run_configuration_logs_pre_hook_error():
 
 def test_run_configuration_bails_for_pre_hook_soft_failure():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     error = subprocess.CalledProcessError(borgmatic.hooks.command.SOFT_FAIL_EXIT_CODE, 'try again')
     flexmock(module.command).should_receive('execute_hook').and_raise(error).and_return(None)
-    flexmock(module).should_receive('make_error_log_records').never()
+    flexmock(module).should_receive('log_error_records').never()
     flexmock(module).should_receive('run_actions').never()
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
@@ -121,12 +154,13 @@ def test_run_configuration_bails_for_pre_hook_soft_failure():
 
 def test_run_configuration_logs_post_hook_error():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').and_return(None).and_raise(
         OSError
     ).and_return(None)
     flexmock(module.dispatch).should_receive('call_hooks')
     expected_results = [flexmock()]
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_results)
+    flexmock(module).should_receive('log_error_records').and_return(expected_results)
     flexmock(module).should_receive('run_actions').and_return([])
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
@@ -138,12 +172,13 @@ def test_run_configuration_logs_post_hook_error():
 
 def test_run_configuration_bails_for_post_hook_soft_failure():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     error = subprocess.CalledProcessError(borgmatic.hooks.command.SOFT_FAIL_EXIT_CODE, 'try again')
     flexmock(module.command).should_receive('execute_hook').and_return(None).and_raise(
         error
     ).and_return(None)
     flexmock(module.dispatch).should_receive('call_hooks')
-    flexmock(module).should_receive('make_error_log_records').never()
+    flexmock(module).should_receive('log_error_records').never()
     flexmock(module).should_receive('run_actions').and_return([])
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
@@ -155,9 +190,10 @@ def test_run_configuration_bails_for_post_hook_soft_failure():
 
 def test_run_configuration_logs_on_error_hook_error():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     flexmock(module.command).should_receive('execute_hook').and_raise(OSError)
     expected_results = [flexmock(), flexmock()]
-    flexmock(module).should_receive('make_error_log_records').and_return(
+    flexmock(module).should_receive('log_error_records').and_return(
         expected_results[:1]
     ).and_return(expected_results[1:])
     flexmock(module).should_receive('run_actions').and_raise(OSError)
@@ -171,10 +207,11 @@ def test_run_configuration_logs_on_error_hook_error():
 
 def test_run_configuration_bails_for_on_error_hook_soft_failure():
     flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
     error = subprocess.CalledProcessError(borgmatic.hooks.command.SOFT_FAIL_EXIT_CODE, 'try again')
     flexmock(module.command).should_receive('execute_hook').and_return(None).and_raise(error)
     expected_results = [flexmock()]
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_results)
+    flexmock(module).should_receive('log_error_records').and_return(expected_results)
     flexmock(module).should_receive('run_actions').and_raise(OSError)
     config = {'location': {'repositories': ['foo']}}
     arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
@@ -184,6 +221,196 @@ def test_run_configuration_bails_for_on_error_hook_soft_failure():
     assert results == expected_results
 
 
+def test_run_configuration_retries_soft_error():
+    # Run action first fails, second passes
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).and_return([])
+    flexmock(module).should_receive('log_error_records').and_return([flexmock()]).once()
+    config = {'location': {'repositories': ['foo']}, 'storage': {'retries': 1}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == []
+
+
+def test_run_configuration_retries_hard_error():
+    # Run action fails twice
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).times(2)
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()])
+    error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository', OSError,
+    ).and_return(error_logs)
+    config = {'location': {'repositories': ['foo']}, 'storage': {'retries': 1}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == error_logs
+
+
+def test_run_repos_ordered():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).times(2)
+    expected_results = [flexmock(), flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository', OSError
+    ).and_return(expected_results[:1]).ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository', OSError
+    ).and_return(expected_results[1:]).ordered()
+    config = {'location': {'repositories': ['foo', 'bar']}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == expected_results
+
+
+def test_run_configuration_retries_round_robbin():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).times(4)
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+    foo_error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository', OSError
+    ).and_return(foo_error_logs).ordered()
+    bar_error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository', OSError
+    ).and_return(bar_error_logs).ordered()
+    config = {'location': {'repositories': ['foo', 'bar']}, 'storage': {'retries': 1}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == foo_error_logs + bar_error_logs
+
+
+def test_run_configuration_retries_one_passes():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).and_raise(OSError).and_return(
+        []
+    ).and_raise(OSError).times(4)
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return(flexmock()).ordered()
+    error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository', OSError
+    ).and_return(error_logs).ordered()
+    config = {'location': {'repositories': ['foo', 'bar']}, 'storage': {'retries': 1}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == error_logs
+
+
+def test_run_configuration_retry_wait():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).times(4)
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+
+    flexmock(time).should_receive('sleep').with_args(10).and_return().ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+
+    flexmock(time).should_receive('sleep').with_args(20).and_return().ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+
+    flexmock(time).should_receive('sleep').with_args(30).and_return().ordered()
+    error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository', OSError
+    ).and_return(error_logs).ordered()
+    config = {'location': {'repositories': ['foo']}, 'storage': {'retries': 3, 'retry_wait': 10}}
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == error_logs
+
+
+def test_run_configuration_retries_timeout_multiple_repos():
+    flexmock(module.borg_environment).should_receive('initialize')
+    flexmock(module.borg_version).should_receive('local_borg_version').and_return(flexmock())
+    flexmock(module.command).should_receive('execute_hook')
+    flexmock(module).should_receive('run_actions').and_raise(OSError).and_raise(OSError).and_return(
+        []
+    ).and_raise(OSError).times(4)
+    flexmock(module).should_receive('log_error_records').with_args(
+        'foo: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository',
+        OSError,
+        levelno=logging.WARNING,
+        log_command_error_output=True,
+    ).and_return([flexmock()]).ordered()
+
+    # Sleep before retrying foo (and passing)
+    flexmock(time).should_receive('sleep').with_args(10).and_return().ordered()
+
+    # Sleep before retrying bar (and failing)
+    flexmock(time).should_receive('sleep').with_args(10).and_return().ordered()
+    error_logs = [flexmock()]
+    flexmock(module).should_receive('log_error_records').with_args(
+        'bar: Error running actions for repository', OSError
+    ).and_return(error_logs).ordered()
+    config = {
+        'location': {'repositories': ['foo', 'bar']},
+        'storage': {'retries': 1, 'retry_wait': 10},
+    }
+    arguments = {'global': flexmock(monitoring_verbosity=1, dry_run=False), 'create': flexmock()}
+    results = list(module.run_configuration('test.yaml', config, arguments))
+    assert results == error_logs
+
+
 def test_load_configurations_collects_parsed_configurations():
     configuration = flexmock()
     other_configuration = flexmock()
@@ -197,6 +424,15 @@ def test_load_configurations_collects_parsed_configurations():
     assert logs == []
 
 
+def test_load_configurations_logs_warning_for_permission_error():
+    flexmock(module.validate).should_receive('parse_configuration').and_raise(PermissionError)
+
+    configs, logs = tuple(module.load_configurations(('test.yaml',)))
+
+    assert configs == {}
+    assert {log.levelno for log in logs} == {logging.WARNING}
+
+
 def test_load_configurations_logs_critical_for_parse_error():
     flexmock(module.validate).should_receive('parse_configuration').and_raise(ValueError)
 
@@ -214,48 +450,46 @@ def test_log_record_with_suppress_does_not_raise():
     module.log_record(levelno=1, foo='bar', baz='quux', suppress_log=True)
 
 
-def test_make_error_log_records_generates_output_logs_for_message_only():
+def test_log_error_records_generates_output_logs_for_message_only():
     flexmock(module).should_receive('log_record').replace_with(dict)
 
-    logs = tuple(module.make_error_log_records('Error'))
+    logs = tuple(module.log_error_records('Error'))
 
     assert {log['levelno'] for log in logs} == {logging.CRITICAL}
 
 
-def test_make_error_log_records_generates_output_logs_for_called_process_error():
+def test_log_error_records_generates_output_logs_for_called_process_error():
     flexmock(module).should_receive('log_record').replace_with(dict)
     flexmock(module.logger).should_receive('getEffectiveLevel').and_return(logging.WARNING)
 
     logs = tuple(
-        module.make_error_log_records(
+        module.log_error_records('Error', subprocess.CalledProcessError(1, 'ls', 'error output'))
-            'Error', subprocess.CalledProcessError(1, 'ls', 'error output')
-        )
     )
 
     assert {log['levelno'] for log in logs} == {logging.CRITICAL}
     assert any(log for log in logs if 'error output' in str(log))
 
 
-def test_make_error_log_records_generates_logs_for_value_error():
+def test_log_error_records_generates_logs_for_value_error():
     flexmock(module).should_receive('log_record').replace_with(dict)
 
-    logs = tuple(module.make_error_log_records('Error', ValueError()))
+    logs = tuple(module.log_error_records('Error', ValueError()))
 
     assert {log['levelno'] for log in logs} == {logging.CRITICAL}
 
 
-def test_make_error_log_records_generates_logs_for_os_error():
+def test_log_error_records_generates_logs_for_os_error():
     flexmock(module).should_receive('log_record').replace_with(dict)
 
-    logs = tuple(module.make_error_log_records('Error', OSError()))
+    logs = tuple(module.log_error_records('Error', OSError()))
 
     assert {log['levelno'] for log in logs} == {logging.CRITICAL}
 
 
-def test_make_error_log_records_generates_nothing_for_other_error():
+def test_log_error_records_generates_nothing_for_other_error():
     flexmock(module).should_receive('log_record').replace_with(dict)
 
-    logs = tuple(module.make_error_log_records('Error', KeyError()))
+    logs = tuple(module.log_error_records('Error', KeyError()))
 
     assert logs == ()
 
@@ -312,7 +546,7 @@ def test_collect_configuration_run_summary_logs_extract_with_repository_error():
         ValueError
     )
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
     arguments = {'extract': flexmock(repository='repo')}
 
     logs = tuple(
@@ -339,7 +573,7 @@ def test_collect_configuration_run_summary_logs_mount_with_repository_error():
         ValueError
     )
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
     arguments = {'mount': flexmock(repository='repo')}
 
     logs = tuple(
@@ -352,7 +586,7 @@ def test_collect_configuration_run_summary_logs_mount_with_repository_error():
 def test_collect_configuration_run_summary_logs_missing_configs_error():
     arguments = {'global': flexmock(config_paths=[])}
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
 
     logs = tuple(module.collect_configuration_run_summary_logs({}, arguments=arguments))
 
@@ -362,7 +596,7 @@ def test_collect_configuration_run_summary_logs_missing_configs_error():
 def test_collect_configuration_run_summary_logs_pre_hook_error():
     flexmock(module.command).should_receive('execute_hook').and_raise(ValueError)
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
     arguments = {'create': flexmock(), 'global': flexmock(monitoring_verbosity=1, dry_run=False)}
 
     logs = tuple(
@@ -376,7 +610,7 @@ def test_collect_configuration_run_summary_logs_post_hook_error():
     flexmock(module.command).should_receive('execute_hook').and_return(None).and_raise(ValueError)
     flexmock(module).should_receive('run_configuration').and_return([])
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
     arguments = {'create': flexmock(), 'global': flexmock(monitoring_verbosity=1, dry_run=False)}
 
     logs = tuple(
@@ -391,7 +625,7 @@ def test_collect_configuration_run_summary_logs_for_list_with_archive_and_reposi
         ValueError
     )
     expected_logs = (flexmock(),)
-    flexmock(module).should_receive('make_error_log_records').and_return(expected_logs)
+    flexmock(module).should_receive('log_error_records').and_return(expected_logs)
     arguments = {'list': flexmock(repository='repo', archive='test')}
 
     logs = tuple(
@@ -417,7 +651,7 @@ def test_collect_configuration_run_summary_logs_run_configuration_error():
     flexmock(module).should_receive('run_configuration').and_return(
         [logging.makeLogRecord(dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg='Error'))]
     )
-    flexmock(module).should_receive('make_error_log_records').and_return([])
+    flexmock(module).should_receive('log_error_records').and_return([])
     arguments = {}
 
     logs = tuple(
@@ -431,7 +665,7 @@ def test_collect_configuration_run_summary_logs_run_umount_error():
     flexmock(module.validate).should_receive('guard_configuration_contains_repository')
     flexmock(module).should_receive('run_configuration').and_return([])
     flexmock(module.borg_umount).should_receive('unmount_archive').and_raise(OSError)
-    flexmock(module).should_receive('make_error_log_records').and_return(
+    flexmock(module).should_receive('log_error_records').and_return(
         [logging.makeLogRecord(dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg='Error'))]
     )
     arguments = {'umount': flexmock(mount_point='/mnt')}

tests/unit/config/test_override.py

@@ -1,4 +1,5 @@
 import pytest
+import ruamel.yaml
 from flexmock import flexmock
 
 from borgmatic.config import override as module
@@ -70,6 +71,14 @@ def test_parse_overrides_raises_on_missing_equal_sign():
         module.parse_overrides(raw_overrides)
 
 
+def test_parse_overrides_raises_on_invalid_override_value():
+    flexmock(module).should_receive('convert_value_type').and_raise(ruamel.yaml.parser.ParserError)
+    raw_overrides = ['section.option=[in valid]']
+
+    with pytest.raises(ValueError):
+        module.parse_overrides(raw_overrides)
+
+
 def test_parse_overrides_allows_value_with_single_key():
     flexmock(module).should_receive('convert_value_type').replace_with(lambda value: value)
     raw_overrides = ['option=value']

tests/unit/config/test_validate.py

@@ -4,33 +4,31 @@ from flexmock import flexmock
 from borgmatic.config import validate as module
 
 
-def test_format_error_path_element_formats_array_index():
+def test_format_json_error_path_element_formats_array_index():
-    module.format_error_path_element(3) == '[3]'
+    module.format_json_error_path_element(3) == '[3]'
 
 
-def test_format_error_path_element_formats_property():
+def test_format_json_error_path_element_formats_property():
-    module.format_error_path_element('foo') == '.foo'
+    module.format_json_error_path_element('foo') == '.foo'
 
 
-def test_format_error_formats_error_including_path():
+def test_format_json_error_formats_error_including_path():
-    flexmock(module).format_error_path_element = lambda element: '.{}'.format(element)
+    flexmock(module).format_json_error_path_element = lambda element: '.{}'.format(element)
     error = flexmock(message='oops', path=['foo', 'bar'])
 
-    assert module.format_error(error) == "At 'foo.bar': oops"
+    assert module.format_json_error(error) == "At 'foo.bar': oops"
 
 
-def test_format_error_formats_error_without_path():
+def test_format_json_error_formats_error_without_path():
-    flexmock(module).should_receive('format_error_path_element').never()
+    flexmock(module).should_receive('format_json_error_path_element').never()
     error = flexmock(message='oops', path=[])
 
-    assert module.format_error(error) == 'At the top level: oops'
+    assert module.format_json_error(error) == 'At the top level: oops'
 
 
-def test_validation_error_string_contains_error_messages_and_config_filename():
+def test_validation_error_string_contains_errors():
-    flexmock(module).format_error = lambda error: error.message
+    flexmock(module).format_json_error = lambda error: error.message
-    error = module.Validation_error(
+    error = module.Validation_error('config.yaml', ('oops', 'uh oh'))
-        'config.yaml', (flexmock(message='oops', path=None), flexmock(message='uh oh'))
-    )
 
     result = str(error)
 
@@ -40,7 +38,7 @@ def test_validation_error_string_contains_error_messages_and_config_filename():
 
 
 def test_apply_logical_validation_raises_if_archive_name_format_present_without_prefix():
-    flexmock(module).format_error = lambda error: error.message
+    flexmock(module).format_json_error = lambda error: error.message
 
     with pytest.raises(module.Validation_error):
         module.apply_logical_validation(
@@ -53,7 +51,7 @@ def test_apply_logical_validation_raises_if_archive_name_format_present_without_
 
 
 def test_apply_logical_validation_raises_if_archive_name_format_present_without_retention_prefix():
-    flexmock(module).format_error = lambda error: error.message
+    flexmock(module).format_json_error = lambda error: error.message
 
     with pytest.raises(module.Validation_error):
         module.apply_logical_validation(
@@ -67,7 +65,7 @@ def test_apply_logical_validation_raises_if_archive_name_format_present_without_
 
 
 def test_apply_locical_validation_raises_if_unknown_repository_in_check_repositories():
-    flexmock(module).format_error = lambda error: error.message
+    flexmock(module).format_json_error = lambda error: error.message
 
     with pytest.raises(module.Validation_error):
         module.apply_logical_validation(

tests/unit/hooks/test_mongodb.py

@@ -0,0 +1,308 @@
+import logging
+
+import pytest
+from flexmock import flexmock
+
+from borgmatic.hooks import mongodb as module
+
+
+def test_dump_databases_runs_mongodump_for_each_database():
+    databases = [{'name': 'foo'}, {'name': 'bar'}]
+    processes = [flexmock(), flexmock()]
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/foo'
+    ).and_return('databases/localhost/bar')
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump')
+
+    for name, process in zip(('foo', 'bar'), processes):
+        flexmock(module).should_receive('execute_command').with_args(
+            ['mongodump', '--archive', '--db', name, '>', 'databases/localhost/{}'.format(name)],
+            shell=True,
+            run_to_completion=False,
+        ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == processes
+
+
+def test_dump_databases_with_dry_run_skips_mongodump():
+    databases = [{'name': 'foo'}, {'name': 'bar'}]
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/foo'
+    ).and_return('databases/localhost/bar')
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump').never()
+    flexmock(module).should_receive('execute_command').never()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=True) == []
+
+
+def test_dump_databases_runs_mongodump_with_hostname_and_port():
+    databases = [{'name': 'foo', 'hostname': 'database.example.org', 'port': 5433}]
+    process = flexmock()
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/database.example.org/foo'
+    )
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump')
+
+    flexmock(module).should_receive('execute_command').with_args(
+        [
+            'mongodump',
+            '--archive',
+            '--host',
+            'database.example.org',
+            '--port',
+            '5433',
+            '--db',
+            'foo',
+            '>',
+            'databases/database.example.org/foo',
+        ],
+        shell=True,
+        run_to_completion=False,
+    ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
+
+
+def test_dump_databases_runs_mongodump_with_username_and_password():
+    databases = [
+        {
+            'name': 'foo',
+            'username': 'mongo',
+            'password': 'trustsome1',
+            'authentication_database': "admin",
+        }
+    ]
+    process = flexmock()
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/foo'
+    )
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump')
+
+    flexmock(module).should_receive('execute_command').with_args(
+        [
+            'mongodump',
+            '--archive',
+            '--username',
+            'mongo',
+            '--password',
+            'trustsome1',
+            '--authenticationDatabase',
+            'admin',
+            '--db',
+            'foo',
+            '>',
+            'databases/localhost/foo',
+        ],
+        shell=True,
+        run_to_completion=False,
+    ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
+
+
+def test_dump_databases_runs_mongodump_with_directory_format():
+    databases = [{'name': 'foo', 'format': 'directory'}]
+    process = flexmock()
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/foo'
+    )
+    flexmock(module.dump).should_receive('create_parent_directory_for_dump')
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump').never()
+
+    flexmock(module).should_receive('execute_command').with_args(
+        ['mongodump', '--archive', 'databases/localhost/foo', '--db', 'foo'],
+        shell=True,
+        run_to_completion=False,
+    ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
+
+
+def test_dump_databases_runs_mongodump_with_options():
+    databases = [{'name': 'foo', 'options': '--stuff=such'}]
+    process = flexmock()
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/foo'
+    )
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump')
+
+    flexmock(module).should_receive('execute_command').with_args(
+        ['mongodump', '--archive', '--db', 'foo', '--stuff=such', '>', 'databases/localhost/foo'],
+        shell=True,
+        run_to_completion=False,
+    ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
+
+
+def test_dump_databases_runs_mongodumpall_for_all_databases():
+    databases = [{'name': 'all'}]
+    process = flexmock()
+    flexmock(module).should_receive('make_dump_path').and_return('')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
+        'databases/localhost/all'
+    )
+    flexmock(module.dump).should_receive('create_named_pipe_for_dump')
+
+    flexmock(module).should_receive('execute_command').with_args(
+        ['mongodump', '--archive', '>', 'databases/localhost/all'],
+        shell=True,
+        run_to_completion=False,
+    ).and_return(process).once()
+
+    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
+
+
+def test_restore_database_dump_runs_pg_restore():
+    database_config = [{'name': 'foo'}]
+    extract_process = flexmock(stdout=flexmock())
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').with_args(
+        ['mongorestore', '--archive', '--drop', '--db', 'foo'],
+        processes=[extract_process],
+        output_log_level=logging.DEBUG,
+        input_file=extract_process.stdout,
+        borg_local_path='borg',
+    ).once()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
+    )
+
+
+def test_restore_database_dump_errors_on_multiple_database_config():
+    database_config = [{'name': 'foo'}, {'name': 'bar'}]
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').never()
+    flexmock(module).should_receive('execute_command').never()
+
+    with pytest.raises(ValueError):
+        module.restore_database_dump(
+            database_config, 'test.yaml', {}, dry_run=False, extract_process=flexmock()
+        )
+
+
+def test_restore_database_dump_runs_pg_restore_with_hostname_and_port():
+    database_config = [{'name': 'foo', 'hostname': 'database.example.org', 'port': 5433}]
+    extract_process = flexmock(stdout=flexmock())
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').with_args(
+        [
+            'mongorestore',
+            '--archive',
+            '--drop',
+            '--db',
+            'foo',
+            '--host',
+            'database.example.org',
+            '--port',
+            '5433',
+        ],
+        processes=[extract_process],
+        output_log_level=logging.DEBUG,
+        input_file=extract_process.stdout,
+        borg_local_path='borg',
+    ).once()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
+    )
+
+
+def test_restore_database_dump_runs_pg_restore_with_username_and_password():
+    database_config = [
+        {
+            'name': 'foo',
+            'username': 'mongo',
+            'password': 'trustsome1',
+            'authentication_database': 'admin',
+        }
+    ]
+    extract_process = flexmock(stdout=flexmock())
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').with_args(
+        [
+            'mongorestore',
+            '--archive',
+            '--drop',
+            '--db',
+            'foo',
+            '--username',
+            'mongo',
+            '--password',
+            'trustsome1',
+            '--authenticationDatabase',
+            'admin',
+        ],
+        processes=[extract_process],
+        output_log_level=logging.DEBUG,
+        input_file=extract_process.stdout,
+        borg_local_path='borg',
+    ).once()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
+    )
+
+
+def test_restore_database_dump_runs_psql_for_all_database_dump():
+    database_config = [{'name': 'all'}]
+    extract_process = flexmock(stdout=flexmock())
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').with_args(
+        ['mongorestore', '--archive'],
+        processes=[extract_process],
+        output_log_level=logging.DEBUG,
+        input_file=extract_process.stdout,
+        borg_local_path='borg',
+    ).once()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
+    )
+
+
+def test_restore_database_dump_with_dry_run_skips_restore():
+    database_config = [{'name': 'foo'}]
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename')
+    flexmock(module).should_receive('execute_command_with_processes').never()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=True, extract_process=flexmock()
+    )
+
+
+def test_restore_database_dump_without_extract_process_restores_from_disk():
+    database_config = [{'name': 'foo'}]
+
+    flexmock(module).should_receive('make_dump_path')
+    flexmock(module.dump).should_receive('make_database_dump_filename').and_return('/dump/path')
+    flexmock(module).should_receive('execute_command_with_processes').with_args(
+        ['mongorestore', '--archive', '/dump/path', '--drop', '--db', 'foo'],
+        processes=[],
+        output_log_level=logging.DEBUG,
+        input_file=None,
+        borg_local_path='borg',
+    ).once()
+
+    module.restore_database_dump(
+        database_config, 'test.yaml', {}, dry_run=False, extract_process=None
+    )

tests/unit/hooks/test_mysql.py

@@ -155,8 +155,8 @@ def test_dump_databases_runs_mysqldump_with_options():
     flexmock(module).should_receive('execute_command').with_args(
         (
             'mysqldump',
-            '--add-drop-database',
             '--stuff=such',
+            '--add-drop-database',
             '--databases',
             'foo',
             '>',
@@ -198,6 +198,24 @@ def test_dump_databases_runs_mysqldump_for_all_databases():
     assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]
 
 
+def test_database_names_to_dump_runs_mysql_with_list_options():
+    database = {'name': 'all', 'list_options': '--defaults-extra-file=my.cnf'}
+    flexmock(module).should_receive('execute_command').with_args(
+        (
+            'mysql',
+            '--defaults-extra-file=my.cnf',
+            '--skip-column-names',
+            '--batch',
+            '--execute',
+            'show schemas',
+        ),
+        output_log_level=None,
+        extra_environment=None,
+    ).and_return(('foo\nbar')).once()
+
+    assert module.database_names_to_dump(database, None, 'test.yaml', '') == ('foo', 'bar')
+
+
 def test_dump_databases_errors_for_missing_all_databases():
     databases = [{'name': 'all'}]
     process = flexmock()
@@ -216,7 +234,7 @@ def test_restore_database_dump_runs_mysql_to_restore():
     extract_process = flexmock(stdout=flexmock())
 
     flexmock(module).should_receive('execute_command_with_processes').with_args(
-        ('mysql', '--batch', '--verbose'),
+        ('mysql', '--batch'),
         processes=[extract_process],
         output_log_level=logging.DEBUG,
         input_file=extract_process.stdout,
@@ -249,7 +267,6 @@ def test_restore_database_dump_runs_mysql_with_hostname_and_port():
         (
             'mysql',
             '--batch',
-            '--verbose',
             '--host',
             'database.example.org',
             '--port',
@@ -274,7 +291,7 @@ def test_restore_database_dump_runs_mysql_with_username_and_password():
     extract_process = flexmock(stdout=flexmock())
 
     flexmock(module).should_receive('execute_command_with_processes').with_args(
-        ('mysql', '--batch', '--verbose', '--user', 'root'),
+        ('mysql', '--batch', '--user', 'root'),
         processes=[extract_process],
         output_log_level=logging.DEBUG,
         input_file=extract_process.stdout,

tests/unit/test_signals.py

@@ -0,0 +1,40 @@
+from flexmock import flexmock
+
+from borgmatic import signals as module
+
+
+def test_handle_signal_forwards_to_subprocesses():
+    signal_number = 100
+    frame = flexmock(f_back=flexmock(f_code=flexmock(co_name='something')))
+    process_group = flexmock()
+    flexmock(module.os).should_receive('getpgrp').and_return(process_group)
+    flexmock(module.os).should_receive('killpg').with_args(process_group, signal_number).once()
+
+    module.handle_signal(signal_number, frame)
+
+
+def test_handle_signal_bails_on_recursion():
+    signal_number = 100
+    frame = flexmock(f_back=flexmock(f_code=flexmock(co_name='handle_signal')))
+    flexmock(module.os).should_receive('getpgrp').never()
+    flexmock(module.os).should_receive('killpg').never()
+
+    module.handle_signal(signal_number, frame)
+
+
+def test_handle_signal_exits_on_sigterm():
+    signal_number = module.signal.SIGTERM
+    frame = flexmock(f_back=flexmock(f_code=flexmock(co_name='something')))
+    flexmock(module.os).should_receive('getpgrp').and_return(flexmock)
+    flexmock(module.os).should_receive('killpg')
+    flexmock(module.sys).should_receive('exit').with_args(
+        module.EXIT_CODE_FROM_SIGNAL + signal_number
+    ).once()
+
+    module.handle_signal(signal_number, frame)
+
+
+def test_configure_signals_installs_signal_handlers():
+    flexmock(module.signal).should_receive('signal').at_least().once()
+
+    module.configure_signals()

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py36,py37,py38,py39
+envlist = py37,py38,py39,py310
 skip_missing_interpreters = True
 skipsdist = True
 minversion = 3.14.1
@@ -13,7 +13,7 @@ whitelist_externals =
 passenv = COVERAGE_FILE
 commands =
     pytest {posargs}
-    py38,py39: black --check .
+    py38,py39,py310: black --check .
     isort --check-only --settings-path setup.cfg .
     flake8 borgmatic tests