https://git.ruby-lang.org/ruby.git/commit/?id=77dfa520d4

From 77dfa520d476143b8be6c4805354838012b4d335 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@g...>
Date: Tue, 31 Dec 2019 01:49:08 -0800
Subject: Official actions/checkout is useless

It died again https://github.com/ruby/ruby/runs/368837347

diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
index 89ece0d..56f8c6b 100644
--- a/.github/workflows/mingw.yml
+++ b/.github/workflows/mingw.yml
@@ -36,10 +36,21 @@ jobs: https://github.com/ruby/ruby/blob/trunk/.github/workflows/mingw.yml#L36
         run: |
           git config --system core.autocrlf false
           git config --system core.eol lf
-      - name: Checkout repo
-        uses: actions/checkout@v2
-        with:
-          path: src
+      # Not using official actions/checkout because it's unstable and sometimes doesn't work for a fork.
+      - name: Checkout ruby/ruby
+        run: |
+          git clone --single-branch --shallow-since=yesterday https://github.com/ruby/ruby src
+          git -C src reset --hard "$GITHUB_SHA"
+        if: github.event_name == 'push'
+      - name: Checkout a pull request
+        run: |
+          git clone --single-branch --shallow-since=yesterday "--branch=$GITHUB_BRANCH" "https://github.com/${GITHUB_REPO}" src
+          git -C src reset --hard "$GITHUB_REV"
+        env:
+          GITHUB_REV: ${{ github.event.pull_request.head.sha }}
+          GITHUB_BRANCH: ${{ github.event.pull_request.head.ref }}
+          GITHUB_REPO: ${{ github.event.pull_request.head.repo.full_name }}
+        if: github.event_name == 'pull_request'
       - run: ./src/tool/actions-commit-info.sh
         shell: bash
         id: commit_info
-- 
cgit v0.10.2


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