chore: make commitlint work locally and in CI

Author: pmorris-dev

.github/workflows/ci.yml

@@ -16,6 +16,8 @@ jobs:
       steps:
          - name: Checkout repository
            uses: actions/checkout@v4
+           with:
+              fetch-depth: 0
 
          - name: Setup Node.js
            uses: actions/setup-node@v4
@@ -40,6 +42,9 @@ jobs:
 
          - name: Run standards checks
            run: npm run standards
+           env:
+              # For PRs: lint from base branch. For pushes: lint from previous commit
+              COMMITLINT_FROM: ${{ github.event_name == 'pull_request' && github.event.pull_request.base.sha || github.event.before }}
 
          - name: Run cargo check
            run: cargo check --workspace --all-targets

package.json

@@ -11,7 +11,7 @@
    "scripts": {
       "build": "tsc -p guest-js/tsconfig.json",
       "check-node-version": "check-node-version --npm 10.5.0",
-      "commitlint": "commitlint --from 002bcc8",
+      "commitlint": "commitlint --from ${COMMITLINT_FROM:-002bcc8} --to ${COMMITLINT_TO:-HEAD}",
       "markdownlint": "markdownlint-cli2",
       "rust:lint": "cargo lint-clippy && cargo lint-fmt",
       "rust:lint:fix": "cargo fix-clippy && cargo fix-fmt",