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enhancements to tarsnap backend

This commit is contained in:
Conor Hughes 2014-03-12 18:11:09 -07:00
parent d7f737639d
commit 5701229f1e
1 changed files with 6 additions and 3 deletions
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9
backupmgr/backup_backends/tarsnap.py
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@ -21,8 +21,6 @@ class TarsnapBackend(backend_types.BackupBackend):
def __init__(self, config):
super(TarsnapBackend, self).__init__(config)
self.keyfile = config.pop("keyfile", None)
if self.keyfile is None:
raise backend_types.BackendConfigurationError("Need keyfile for tarsnap backend")
def perform(self, paths, backup_name):
self.logger.info("Creating backup \"{}\": {}".format(backup_name, " ,".join(paths)))
@ -31,9 +29,14 @@ class TarsnapBackend(backend_types.BackupBackend):
for path, name in paths.items():
os.symlink(path, os.path.join(tmpdir, name))
argv = [TARSNAP_PATH, "-C", tmpdir, "-H", "-cf", backup_name]
if self.keyfile is not None:
argv += ["--keyfile", self.keyfile]
argv += paths.values()
self.logger.info("Invoking tarsnap: {}".format(argv))
proc = subprocess.Popen(argv)
proc = subprocess.Popen(argv, stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
proc_logger = self.logger.getChild("tarsnap_output")
for line in proc.stdout:
proc_logger.info(line.strip())
code = proc.wait()
if code != 0:
self.logger.error("Tarsnap invocation failed with exit code {}".format(code))