Fix unmaterialized LFS files on persistent/self-hosted runners - #2552
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Fix unmaterialized LFS files on persistent/self-hosted runners#2552KlotzAndrew wants to merge 1 commit into
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Problem On persistent/self-hosted runners that reuse a working directory across jobs, LFS-tracked files can be left as pointer files instead of real content when a lfs: false checkout precedes a lfs: true checkout of the same repo. Sequence that triggers it: 1. A lfs: false run sets GIT_LFS_SKIP_SMUDGE=1, so git checkout writes LFS files to the working tree as pointers. 2. A later lfs: true run on the same worktree fetches the objects into .git/lfs, but git checkout sees the tree already at the target commit and does not re-smudge the already-present pointer files. Result: the objects are in the local cache, but the working tree still contains pointers. The action relies on the smudge filter firing during git checkout to materialize content — which holds on a clean tree (GitHub-hosted runners) but not on a reused one. Related: actions#270
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Problem
On persistent/self-hosted runners that reuse a working directory across jobs, LFS-tracked files can be left as pointer files instead of real content when a lfs: false checkout precedes a lfs: true checkout of the same repo.
Sequence that triggers it:
Result: the objects are in the local cache, but the working tree still contains pointers. The action relies on the smudge filter firing during git checkout to materialize content - which holds on a clean tree (GitHub-hosted runners) but not on a reused one.
Related: #270