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fix: Use git protocol for retrace spec check #92

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Merged
romtsn merged 1 commit into from
Apr 7, 2026
Merged

fix: Use git protocol for retrace spec check #92

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29 changes: 17 additions & 12 deletions scripts/check-retrace-spec.sh
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Original file line number Diff line number Diff line change
@@ -1,24 +1,29 @@
#!/usr/bin/env bash
set -euo pipefail

TRACKED_COMMIT="e212426be84283876b6bb832630c0de25a2a7bc5"
# Blob hash of doc/retrace.md at the last known state.
# To update: run this script's fetch logic manually and replace the hash.
TRACKED_BLOB="ae22ff183a460d25fc0cecdd2d34f5b32ae216d9"

# tail -n +2 to remove the magic anti-XSSI prefix from the Gitiles JSON response
LATEST_COMMIT=$(curl -sf \
'https://r8.googlesource.com/r8/+log/refs/heads/main/doc/retrace.md?format=JSON' \
| tail -n +2 \
| jq -r '.log[0].commit')
WORK_DIR=$(mktemp -d)
trap 'rm -rf "$WORK_DIR"' EXIT

if [ -z "$LATEST_COMMIT" ] || [ "$LATEST_COMMIT" = "null" ]; then
echo "ERROR: Failed to fetch latest commit from Gitiles" >&2
git init -q "$WORK_DIR"
git -C "$WORK_DIR" remote add origin https://r8.googlesource.com/r8
git -C "$WORK_DIR" fetch --quiet --depth=1 --filter=blob:none origin refs/heads/main

LATEST_BLOB=$(git -C "$WORK_DIR" ls-tree FETCH_HEAD -- doc/retrace.md | awk '{print $3}')

if [ -z "$LATEST_BLOB" ]; then
echo "ERROR: Failed to read doc/retrace.md blob from r8 repo" >&2
exit 1
fi

echo "Tracked commit: $TRACKED_COMMIT"
echo "Latest commit: $LATEST_COMMIT"
echo "Tracked blob: $TRACKED_BLOB"
echo "Latest blob: $LATEST_BLOB"

if [ "$LATEST_COMMIT" != "$TRACKED_COMMIT" ]; then
echo "Spec has been updated! Latest: https://r8.googlesource.com/r8/+/${LATEST_COMMIT}/doc/retrace.md"
if [ "$LATEST_BLOB" != "$TRACKED_BLOB" ]; then
echo "Spec has been updated! View at: https://r8.googlesource.com/r8/+/refs/heads/main/doc/retrace.md"
exit 1
fi

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