From e661bcb7f7dfc7dd3fb418379ccfee4b224b325c Mon Sep 17 00:00:00 2001
From: Antoine du Hamel <duhamelantoine1995@gmail.com>
Date: Wed, 23 Jun 2021 16:48:34 +0200
Subject: [PATCH] tools: avoid fetch extra commits when validating commit
 messages

---
 .github/workflows/commit-lint.yml | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/commit-lint.yml b/.github/workflows/commit-lint.yml
index 9ea6337b51f181..ca3df6e3b08df7 100644
--- a/.github/workflows/commit-lint.yml
+++ b/.github/workflows/commit-lint.yml
@@ -2,18 +2,23 @@ name: "Commit messages adheres to guidelines at https://goo.gl/p2fr5Q"
 
 on: [pull_request]
 
+env:
+  NODE_VERSION: 14.x
+
 jobs:
   lint-commit-message:
     runs-on: ubuntu-latest
     steps:
+      - name: Compute number of commits in the PR
+        id: nb-of-commits
+        run: echo "::set-output name=nb::$((${{ github.event.pull_request.commits }} + 1))"
       - uses: actions/checkout@v2
         with:
-          # Last 100 commits should be enough for a PR
-          fetch-depth: 100
-      - name: Use Node.js 12
-        uses: actions/setup-node@v1
+          fetch-depth: ${{ steps.nb-of-commits.outputs.nb }}
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
+          node-version: ${{ env.NODE_VERSION }}
       - name: Validate commit messages
         run: |
           echo "::add-matcher::.github/workflows/commit-lint-problem-matcher.json"