feat: Diff check optimization

Author: qcq01083097

.github/workflows/sync-bailian-cli-skill-reference.yml

@@ -16,6 +16,12 @@ on:
       - "packages/cli/src/commands/**"
       - "tools/generate-reference.ts"
       - "packages/core/src/types/command.ts"
+    paths-ignore:
+      # Tests and fixtures under commands/ do not affect generated reference.
+      - "packages/cli/src/commands/**/*.test.ts"
+      - "packages/cli/src/commands/**/*.spec.ts"
+      - "packages/cli/src/commands/**/__fixtures__/**"
+      - "packages/cli/src/commands/**/__tests__/**"
   schedule:
     - cron: "0 19 * * *"
   workflow_dispatch:
@@ -80,19 +86,20 @@ jobs:
 
           SHORT_SHA="${CLI_SHA:0:7}"
           BRANCH="sync/bailian-cli-reference-${SHORT_SHA}"
+          REFERENCE_PATH="skills/bailian-cli/reference"
+
           git checkout -B "$BRANCH"
 
           SRC="${GITHUB_WORKSPACE}/tools/generated/reference"
-          DEST="${GITHUB_WORKSPACE}/skills-repo/skills/bailian-cli/reference"
+          DEST="${GITHUB_WORKSPACE}/skills-repo/${REFERENCE_PATH}"
           mkdir -p "$DEST"
           rsync -a --delete "$SRC/" "$DEST/"
 
-          # Stage before checking: untracked new files are invisible to `git diff` until added.
-          git add -A -- skills/bailian-cli/reference
+          # Untracked new files are invisible to `git diff` until added.
+          git add -A -- "$REFERENCE_PATH"
 
-          # Compare staged tree to skills repo main (explicit); no diff → no commit / no PR.
-          if git diff --cached --quiet origin/main; then
-            echo "No diff vs origin/main under skills/bailian-cli/reference; exiting."
+          if git diff --cached --quiet origin/main -- "$REFERENCE_PATH"; then
+            echo "No diff vs origin/main under ${REFERENCE_PATH}; exiting."
             exit 0
           fi
 
@@ -102,17 +109,15 @@ jobs:
             -m "Synced from modelstudioai/cli@${CLI_SHA}" \
             -m "Workflow run: ${RUN_URL}"
 
-          # Branch is automation-owned; lease-safe force covers re-runs / updated main base.
-          git push -u origin "$BRANCH" --force-with-lease
-
+          # Re-fetch before push: main may have been updated with the same reference content.
           git fetch origin main
-          if git diff --quiet origin/main HEAD; then
-            echo "Branch tree matches origin/main; skipping PR creation."
-            git push origin --delete "$BRANCH"
-            echo "Deleted remote branch ${BRANCH} (no PR opened)."
+          if git diff --quiet origin/main HEAD -- "$REFERENCE_PATH"; then
+            echo "Committed tree matches origin/main; skipping push and PR."
             exit 0
           fi
 
+          git push -u origin "$BRANCH" --force-with-lease
+
           EXISTING=$(gh pr list --repo modelstudioai/skills --head "$BRANCH" --state open --json number --jq 'length')
           if [ "${EXISTING}" -eq 0 ]; then
             BODY_FILE="$(mktemp)"