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Specify "--archive latest" to all actions that accept an archive (#289).

This commit is contained in:
Dan Helfman 2020-01-29 16:59:02 -08:00
parent bc02c123e6
commit 55141bda67
6 changed files with 177 additions and 13 deletions
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5
NEWS
View File

@ -1,3 +1,8 @@
1.5.1.dev0
* #289: Tired of looking up the latest successful archive name in order to pass it to borgmatic
actions? Me too. Now you can specify "--archive latest" to all actions that accept an archive
flag.
1.5.0
* #245: Monitor backups with PagerDuty hook integration. See the documentation for more
information: https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#pagerduty-hook

36
borgmatic/borg/list.py
View File

@ -11,6 +11,42 @@ logger = logging.getLogger(__name__)
BORG_EXCLUDE_CHECKPOINTS_GLOB = '*[0123456789]'
def resolve_archive_name(repository, archive, storage_config, local_path='borg', remote_path=None):
'''
Given a local or remote repository path, an archive name, a storage config dict, a local Borg
path, and a remote Borg path, simply return the archive name. But if the archive name is
"latest", then instead introspect the repository for the latest successful (non-checkpoint)
archive, and return its name.
Raise ValueError if "latest" is given but there are no archives in the repository.
'''
if archive != "latest":
return archive
lock_wait = storage_config.get('lock_wait', None)
full_command = (
(local_path, 'list')
+ (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+ (('--debug', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
+ make_flags('remote-path', remote_path)
+ make_flags('lock-wait', lock_wait)
+ make_flags('glob-archives', BORG_EXCLUDE_CHECKPOINTS_GLOB)
+ make_flags('last', 1)
+ ('--short', repository)
)
output = execute_command(full_command, output_log_level=None, error_on_warnings=False)
try:
latest_archive = output.strip().splitlines()[-1]
except IndexError:
raise ValueError('No archives found in the repository')
logger.debug('{}: Latest archive is {}'.format(repository, latest_archive))
return latest_archive
def list_archives(repository, storage_config, list_arguments, local_path='borg', remote_path=None):
'''
Given a local or remote repository path, a storage config dict, and the arguments to the list

14
borgmatic/commands/arguments.py
View File

@ -323,7 +323,9 @@ def parse_arguments(*unparsed_arguments):
'--repository',
help='Path of repository to extract, defaults to the configured repository if there is only one',
)
extract_group.add_argument('--archive', help='Name of archive to extract', required=True)
extract_group.add_argument(
'--archive', help='Name of archive to extract (or "latest")', required=True
)
extract_group.add_argument(
'--path',
'--restore-path',
@ -361,7 +363,7 @@ def parse_arguments(*unparsed_arguments):
'--repository',
help='Path of repository to use, defaults to the configured repository if there is only one',
)
mount_group.add_argument('--archive', help='Name of archive to mount')
mount_group.add_argument('--archive', help='Name of archive to mount (or "latest")')
mount_group.add_argument(
'--mount-point',
metavar='PATH',
@ -415,7 +417,9 @@ def parse_arguments(*unparsed_arguments):
'--repository',
help='Path of repository to restore from, defaults to the configured repository if there is only one',
)
restore_group.add_argument('--archive', help='Name of archive to restore from', required=True)
restore_group.add_argument(
'--archive', help='Name of archive to restore from (or "latest")', required=True
)
restore_group.add_argument(
'--database',
metavar='NAME',
@ -446,7 +450,7 @@ def parse_arguments(*unparsed_arguments):
'--repository',
help='Path of repository to list, defaults to the configured repository if there is only one',
)
list_group.add_argument('--archive', help='Name of archive to list')
list_group.add_argument('--archive', help='Name of archive to list (or "latest")')
list_group.add_argument(
'--path',
metavar='PATH',
@ -508,7 +512,7 @@ def parse_arguments(*unparsed_arguments):
'--repository',
help='Path of repository to show info for, defaults to the configured repository if there is only one',
)
info_group.add_argument('--archive', help='Name of archive to show info for')
info_group.add_argument('--archive', help='Name of archive to show info for (or "latest")')
info_group.add_argument(
'--json', dest='json', default=False, action='store_true', help='Output results as JSON'
)

29
borgmatic/commands/borgmatic.py
View File

@ -1,4 +1,5 @@
import collections
import copy
import json
import logging
import os
@ -297,7 +298,9 @@ def run_actions(
borg_extract.extract_archive(
global_arguments.dry_run,
repository,
arguments['extract'].archive,
borg_list.resolve_archive_name(
repository, arguments['extract'].archive, storage, local_path, remote_path
),
arguments['extract'].paths,
location,
storage,
@ -319,7 +322,9 @@ def run_actions(
borg_mount.mount_archive(
repository,
arguments['mount'].archive,
borg_list.resolve_archive_name(
repository, arguments['mount'].archive, storage, local_path, remote_path
),
arguments['mount'].mount_point,
arguments['mount'].paths,
arguments['mount'].foreground,
@ -355,7 +360,9 @@ def run_actions(
borg_extract.extract_archive(
global_arguments.dry_run,
repository,
arguments['restore'].archive,
borg_list.resolve_archive_name(
repository, arguments['restore'].archive, storage, local_path, remote_path
),
dump.convert_glob_patterns_to_borg_patterns(
dump.flatten_dump_patterns(dump_patterns, restore_names)
),
@ -395,12 +402,16 @@ def run_actions(
if arguments['list'].repository is None or validate.repositories_match(
repository, arguments['list'].repository
):
if not arguments['list'].json:
list_arguments = copy.copy(arguments['list'])
if not list_arguments.json:
logger.warning('{}: Listing archives'.format(repository))
list_arguments.archive = borg_list.resolve_archive_name(
repository, list_arguments.archive, storage, local_path, remote_path
)
json_output = borg_list.list_archives(
repository,
storage,
list_arguments=arguments['list'],
list_arguments=list_arguments,
local_path=local_path,
remote_path=remote_path,
)
@ -410,12 +421,16 @@ def run_actions(
if arguments['info'].repository is None or validate.repositories_match(
repository, arguments['info'].repository
):
if not arguments['info'].json:
info_arguments = copy.copy(arguments['info'])
if not info_arguments.json:
logger.warning('{}: Displaying summary info for archives'.format(repository))
info_arguments.archive = borg_list.resolve_archive_name(
repository, info_arguments.archive, storage, local_path, remote_path
)
json_output = borg_info.display_archives_info(
repository,
storage,
info_arguments=arguments['info'],
info_arguments=info_arguments,
local_path=local_path,
remote_path=remote_path,
)

2
setup.py
View File

@ -1,6 +1,6 @@
from setuptools import find_packages, setup
VERSION = '1.5.0'
VERSION = '1.5.1.dev0'
setup(

104
tests/unit/borg/test_list.py
View File

@ -7,6 +7,110 @@ from borgmatic.borg import list as module
from ..test_verbosity import insert_logging_mock
BORG_LIST_LATEST_ARGUMENTS = (
'--glob-archives',
module.BORG_EXCLUDE_CHECKPOINTS_GLOB,
'--last',
'1',
'--short',
'repo',
)
def test_resolve_archive_name_passes_through_non_latest_archive_name():
archive = 'myhost-2030-01-01T14:41:17.647620'
assert module.resolve_archive_name('repo', archive, storage_config={}) == archive
def test_resolve_archive_name_calls_borg_with_parameters():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
assert module.resolve_archive_name('repo', 'latest', storage_config={}) == expected_archive
def test_resolve_archive_name_with_log_info_calls_borg_with_info_parameter():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list', '--info') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
insert_logging_mock(logging.INFO)
assert module.resolve_archive_name('repo', 'latest', storage_config={}) == expected_archive
def test_resolve_archive_name_with_log_debug_calls_borg_with_debug_parameter():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list', '--debug', '--show-rc') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
insert_logging_mock(logging.DEBUG)
assert module.resolve_archive_name('repo', 'latest', storage_config={}) == expected_archive
def test_resolve_archive_name_with_local_path_calls_borg_via_local_path():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg1', 'list') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
assert (
module.resolve_archive_name('repo', 'latest', storage_config={}, local_path='borg1')
== expected_archive
)
def test_resolve_archive_name_with_remote_path_calls_borg_with_remote_path_parameters():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list', '--remote-path', 'borg1') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
assert (
module.resolve_archive_name('repo', 'latest', storage_config={}, remote_path='borg1')
== expected_archive
)
def test_resolve_archive_name_without_archives_raises():
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return('')
with pytest.raises(ValueError):
module.resolve_archive_name('repo', 'latest', storage_config={})
def test_resolve_archive_name_with_lock_wait_calls_borg_with_lock_wait_parameters():
expected_archive = 'archive-name'
flexmock(module).should_receive('execute_command').with_args(
('borg', 'list', '--lock-wait', 'okay') + BORG_LIST_LATEST_ARGUMENTS,
output_log_level=None,
error_on_warnings=False,
).and_return(expected_archive + '\n')
assert (
module.resolve_archive_name('repo', 'latest', storage_config={'lock_wait': 'okay'})
== expected_archive
)
def test_list_archives_calls_borg_with_parameters():
flexmock(module).should_receive('execute_command').with_args(