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font-patcher: Use git version tag for font version

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[why]
When changes are made to the font-patcher and fonts are patched with
that version we can not see which patcher has been used in the fonts
afterwards.

Would be good to have the usual version-patchversion number in the fonts
in these cases (i.e. `v2.3.3-7` for 7 commits after `2.3.3`).

I did this manually before, but it is always a hassle.

[how]
If the font-patcher is run directly from a git repo and git is installed
we try to get the latest tag version including patch number.

If and only if that is successful and that version is 'newer' than the
version encoded in the font-patcher script the git version is trusted
more.

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
This commit is contained in:
Fini Jastrow 2023-01-27 12:10:14 +01:00
parent ed6488c33b
commit 07a42fcb98
1 changed files with 34 additions and 1 deletions
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35
font-patcher
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@ -1588,6 +1588,34 @@ def check_fontforge_min_version():
sys.stderr.write("{}: Please use at least version: {}\n".format(projectName, minimumVersion))
sys.exit(1)
def check_version_with_git(version):
""" Upgraded the version to the current git tag version (starting with 'v') """
git = subprocess.run("git describe --tags",
cwd=os.path.dirname(__file__),
shell=True,
stdout=subprocess.PIPE, stderr=subprocess.DEVNULL
).stdout.decode('utf-8')
if len(git) == 0:
return False
tag = git.strip()
if len(tag) == 0 or not tag.startswith('v'):
return False
tag = tag[1:]
r = re.search('(.*?)(-[0-9]+)-g[0-9a-fA-F]+$', tag)
if r:
tag = r.group(1)
patchlevel = r.group(2)
else:
patchlevel = ""
# Inspired by Phaxmohdem's versiontuple https://stackoverflow.com/a/28568003
versiontuple = lambda v: tuple( p.zfill(8) for p in v.split(".") )
if versiontuple(tag) > versiontuple(version):
return tag + patchlevel
if versiontuple(tag) == versiontuple(version) and len(patchlevel) > 0:
return tag + patchlevel
return False
def setup_arguments():
parser = argparse.ArgumentParser(
description=(
@ -1716,7 +1744,12 @@ def setup_arguments():
def main():
print("{} Patcher v{} ({}) executing".format(projectName, version, script_version))
global version
git_version = check_version_with_git(version)
print("{} Patcher v{} ({}) (ff {}) executing".format(
projectName, git_version if git_version else version, script_version, fontforge.version()))
if git_version:
version = git_version
check_fontforge_min_version()
args = setup_arguments()
patcher = font_patcher(args)