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support git packed refs in version generator

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(cherry picked from commit 77cf65804c)
This commit is contained in:
Nathan Franke 2022-07-24 21:09:54 -05:00 committed by Rémi Verschelde
parent a0448f1d5e
commit be9d55159d
1 changed files with 13 additions and 1 deletions
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14
methods.py
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@ -107,9 +107,21 @@ def update_version(module_version_string=""):
if os.path.isfile(os.path.join(gitfolder, "HEAD")):
head = open_utf8(os.path.join(gitfolder, "HEAD"), "r").readline().strip()
if head.startswith("ref: "):
head = os.path.join(gitfolder, head[5:])
ref = head[5:]
head = os.path.join(gitfolder, ref)
packedrefs = os.path.join(gitfolder, "packed-refs")
if os.path.isfile(head):
githash = open(head, "r").readline().strip()
elif os.path.isfile(packedrefs):
# Git may pack refs into a single file. This code searches .git/packed-refs file for the current ref's hash.
# https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-pack-refs.html
for line in open(packedrefs, "r").read().splitlines():
if line.startswith("#"):
continue
(line_hash, line_ref) = line.split(" ")
if ref == line_ref:
githash = line_hash
break
else:
githash = head