tools: apply linting to first commit in PRs

Use Travis-CI to check the formatting of the first commit in a pull request. This will hopefully reduce formatting errors and nits about them in pull requests.
nodejs · Oct 5, 2018 · 43e129e · 43e129e
1 parent ff3fd3b
commit 43e129e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -12,6 +12,8 @@ matrix:
         - NODE=$(which node)
       script:
         - make lint
+        # Lint the first commit in the PR.
+        - git log HEAD ^$TRAVIS_BRANCH --pretty=format:'%h' --no-merges | tail -1 | xargs npx core-validate-commit --no-validate-metadata
     - name: "Test Suite"
       install:
         - ./configure