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import subprocess
from packaging.version import Version
from .version import VERSION
def remote_is_plausible(url: str) -> bool:
return ('git.lix.systems' in url and 'lix-project/lix' in url) or ('gerrit.lix.systems' in url and url.endswith('lix'))
def version_compare(v1: str, v2: str):
v1 = Version(v1)
v2 = Version(v2)
if v1 < v2:
return -1
elif v1 > v2:
return 1
elif v1 == v2:
return 0
else:
raise ValueError('these versions are beyond each others celestial plane')
def latest_tag_on_branch(branch: str) -> str:
return $(git describe --abbrev=0 @(branch) e>/dev/null).strip()
def is_maintenance_branch(branch: str) -> bool:
"""
Returns whether the given branch is probably a maintenance branch.
This uses a heuristic: `main` should have a newer tag than a given
maintenance branch if there has been a major release since that maintenance
branch.
"""
assert remote_is_plausible($(git remote get-url origin).strip())
main_tag = latest_tag_on_branch('origin/main')
current_tag = latest_tag_on_branch(branch)
return version_compare(current_tag, main_tag) < 0
def verify_are_on_tag():
current_tag = $(git describe --tag).strip()
assert current_tag == VERSION
def git_preconditions():
# verify there is nothing in index ready to stage
proc = !(git diff-index --quiet --cached HEAD --)
assert proc.rtn == 0
# verify there is nothing *stageable* and tracked
proc = !(git diff-files --quiet)
assert proc.rtn == 0
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