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fix(prefetch): keep prefetched commit on a branch (Linux)

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prefetch_git_repository left the repo on a detached FETCH_HEAD. The dir is
consumed via 'git clone file://<dest>', and a detached/unreachable commit can be
pruned by git gc and is fragile to transfer, surfacing as 'unable to read tree
<sha>' during the downstream console checkout. Point a local branch
(ai-workspace-prefetched) at the fetched commit so it stays reachable and fully
clonable.
This commit is contained in:
Haitao Pan 2026-06-19 03:28:58 +00:00
parent 2bf9068d00
commit d2da139e8d
1 changed files with 6 additions and 1 deletions
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7
scripts/setup-ai-workspace-all-in-one.sh
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@ -1519,7 +1519,12 @@ prefetch_git_repository() {
git clone --no-checkout "$repo" "$dest"
git -C "$dest" fetch --force origin "$ref"
fi
git -C "$dest" checkout --force --detach FETCH_HEAD
# Point a local branch at the fetched commit instead of leaving a detached
# HEAD. The prefetch dir is later consumed via `git clone file://<dest>`,
# which only transfers objects reachable from branches/tags (a detached HEAD
# or remote-tracking ref is not enough) — otherwise the downstream checkout
# of this exact commit fails with "fatal: unable to read tree <sha>".
git -C "$dest" checkout --force -B ai-workspace-prefetched FETCH_HEAD
git -C "$dest" clean -ffd
printf '%s\n' "$(git -C "$dest" rev-parse HEAD)" > "$dest/.ai-workspace-prefetched-commit"
info "Prefetched $label at $(cat "$dest/.ai-workspace-prefetched-commit")"