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scripts/lib/zulip_tools.py: Avoid shelling out for touch.

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Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This commit is contained in:
Anders Kaseorg
2018-07-18 17:50:15 -04:00
committed by Tim Abbott
parent fe76b97e28
commit 09c64f260b
1 changed files with 6 additions and 5 deletions
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11
scripts/lib/zulip_tools.py
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@@ -347,12 +347,13 @@ def file_or_package_hash_updated(paths, hash_name, is_force, package_versions=[]
hash_path = os.path.join(get_dev_uuid_var_path(), hash_name)
new_hash = sha1sum.hexdigest()
run(['touch', hash_path])
with open(hash_path, 'r') as hash_file:
with open(hash_path, 'a+') as hash_file:
hash_file.seek(0)
last_hash = hash_file.read()
if is_force or (new_hash != last_hash):
with open(hash_path, 'w') as hash_file:
if is_force or (new_hash != last_hash):
hash_file.seek(0)
hash_file.truncate()
hash_file.write(new_hash)
return True
return True
return False