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Check for presence of lockfile value before proceeding with context manager

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This commit is contained in:
Eric Torres 2019-04-15 23:51:00 -07:00
parent 4523d0c79d
commit 2d050eaaf9
1 changed files with 4 additions and 2 deletions
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6
rbackup/plugins/packagemanager.py
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@ -71,14 +71,16 @@ class PackageManager:
:rtype: ``PackageManager`` object
:raises FileExistsError: if lockfile exists when this method is called
"""
self._lockfile.touch(mode=0o000)
if self._lockfile:
self._lockfile.touch(mode=0o000, exist_ok=False)
yield self
def __exit__(self):
"""Remove the package manager's lockfile. After this lockfile is closed,
the package manager this class abstracts can perform transactions once again.
"""
self._lockfile.unlink()
if self._lockfile:
self._lockfile.unlink()
def gen_pkglist(self):
"""Generate a text file listing installed packages