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zulip_tools.py: Add purge_caches() function.

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This function can be used for purging unused cache directories.
This commit is contained in:
Harshit Bansal
2017-08-23 20:44:28 +00:00
committed by Tim Abbott
parent 5d974b7f57
commit 36420ab636
1 changed files with 21 additions and 0 deletions
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21
scripts/lib/zulip_tools.py
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@@ -215,3 +215,24 @@ def get_caches_to_be_purged(caches_dir, caches_in_use, threshold_days):
if os.path.getctime(cache_dir) < threshold_timestamp:
caches_to_purge.add(cache_dir)
return caches_to_purge
def purge_unused_caches(caches_dir, caches_in_use, threshold_days, dry_run, cache_type):
# type: (Text, Set[Text], int, bool, Text) -> None
all_caches = set([os.path.join(caches_dir, cache) for cache in os.listdir(caches_dir)])
caches_to_purge = get_caches_to_be_purged(caches_dir, caches_in_use, threshold_days)
caches_to_keep = all_caches - caches_to_purge
if dry_run:
print("Performing a dry run...")
else:
print("Cleaning unused %s caches..." % (cache_type,))
for cache_dir in caches_to_purge:
print("Cleaning unused %s cache: %s" % (cache_type, cache_dir))
if not dry_run:
subprocess.check_call(["sudo", "rm", "-rf", cache_dir])
for cache_dir in caches_to_keep:
print("Keeping used %s cache: %s" % (cache_type, cache_dir))
print("Done!\n")