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add a 'backup --verify' command to run duplicity's verify command to check that the backup files are OK

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This commit is contained in:
Joshua Tauberer 2015-04-11 18:43:46 +00:00
parent bd498def76
commit 36168b4609
1 changed files with 26 additions and 2 deletions
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28
management/backup.py
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@ -242,7 +242,31 @@ def perform_backup(full_backup):
['su', env['STORAGE_USER'], '-c', post_script],
env=env)
def run_duplicity_verification():
env = load_environment()
backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
backup_cache_dir = os.path.join(backup_root, 'cache')
backup_dir = os.path.join(backup_root, 'encrypted')
env_with_passphrase = { "PASSPHRASE" : open(os.path.join(backup_root, 'secret_key.txt')).read() }
shell('check_call', [
"/usr/bin/duplicity",
"--verbosity", "info",
"verify",
"--compare-data",
"--archive-dir", backup_cache_dir,
"--exclude", backup_root,
"file://" + backup_dir,
env["STORAGE_ROOT"],
], env_with_passphrase)
if __name__ == "__main__":
import sys
full_backup = "--full" in sys.argv
perform_backup(full_backup)
if sys.argv[-1] == "--verify":
# Run duplicity's verification command to check a) the backup files
# are readable, and b) report if they are up to date.
run_duplicity_verification()
else:
# Perform a backup. Add --full to force a full backup rather than
# possibly performing an incremental backup.
full_backup = "--full" in sys.argv
perform_backup(full_backup)