Fix VCSTURD when git refs are packed#47
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After `git pack-refs`, the loose ref file (e.g., .git/refs/heads/master) is removed and refs are stored in .git/packed-refs instead. This caused VCSTURD to reference a nonexistent file, breaking the revision.tex target. Fall back to .git/packed-refs when the loose branch ref does not exist. Fixes #46 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
git pack-refs, the loose ref file (e.g.,.git/refs/heads/master) is removed and refs are stored in.git/packed-refsinstead. This caused$(VCSTURD)to reference a nonexistent file, breaking therevision.textarget.$(wildcard ...)to check if the loose branch ref exists, falling back to.git/packed-refswhen it doesn't.Fixes #46
Test plan
git pack-refs --allin a repo using this Makefile, verifymakestill producesrevision.tex🤖 Generated with Claude Code