Fix issue with actions/checkout@v2

In certain workflows we use a custom Docker image for cross-compilation,
this image is old and unmaintained so it has an old version of git and
the latest version actions/checkout doesn't support it.
This causes the action to fallback to the Github API to download the
files but that doesn't create a git repository, thus the history is lost
but goreleaser needs it to generate the changelog so it fails.

So we use git directly to fetch the repository in certain cases to avoid
this failures.

Author: silvanocerza

.github/workflows/nightly.yaml

@@ -20,7 +20,15 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        env:
+          GITHUB_USER: ${{ github.actor }}
+          GITHUB_TOKEN: ${{ github.token }}
+
+        # We must call git directly since the actions/checkout@v2 doesn't support the git
+        # version installed in the crossbuild container, so it uses the GH API to fetch
+        # the repo but that doesn't create a git repository thus goreleaser fails to
+        # create the changelog.
+        run: rm -rf * && git clone https://$GITHUB_USER:[email protected]/${{ github.repository }}.git --single-branch .
 
       - name: build
         env:

.github/workflows/release.yaml

@@ -17,7 +17,17 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        env:
+          GITHUB_USER: ${{ github.actor }}
+          GITHUB_TOKEN: ${{ github.token }}
+
+        # We must call git directly since the actions/checkout@v2 doesn't support the git
+        # version installed in the crossbuild container, so it uses the GH API to fetch
+        # the repo but that doesn't create a git repository thus goreleaser fails to
+        # create the changelog.
+        run: |
+          BRANCH_OR_TAG=$(echo ${{ github.ref }} | awk '{split($0,a,"/"); print a[3]}')
+          rm -rf * && git clone https://$GITHUB_USER:[email protected]/${{ github.repository }}.git -b $BRANCH_OR_TAG --single-branch .
 
       - name: Build
         run: goreleaser

.github/workflows/test.yaml

@@ -113,7 +113,17 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        env:
+          GITHUB_USER: ${{ github.actor }}
+          GITHUB_TOKEN: ${{ github.token }}
+
+        # We must call git directly since the actions/checkout@v2 doesn't support the git
+        # version installed in the crossbuild container, so it uses the GH API to fetch
+        # the repo but that doesn't create a git repository thus goreleaser fails to
+        # create the changelog.
+        run: |
+          BRANCH_OR_TAG=$(echo ${{ github.ref }} | awk '{split($0,a,"/"); print a[3]}')
+          rm -rf * && git clone https://$GITHUB_USER:[email protected]/${{ github.repository }}.git -b $BRANCH_OR_TAG --single-branch .
 
       - name: build
         shell: bash