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. PR-URL: nodejs#22452 Reviewed-By: Weijia Wang <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Steven R Loomis <[email protected]>
ihiteshsharma · Oct 5, 2018 · 2cf6a94 · 2cf6a94
1 parent e1d4b0a
commit 2cf6a94
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