[RELEASE] copy the release to forgejo-experimental if tests pass

.forgejo/workflows/build-release.yml

@@ -14,8 +14,6 @@
 #  secrets.CASCADE_DESTINATION_TOKEN: <generated from code.forgejo.org/forgejo-ci> scope read:user, write:repository, write:issue
 #  vars.CASCADE_DESTINATION_DOER: forgejo-ci
 #
-name: Build release
-
 on:
   push:
     tags: 'v[0-9]+.[0-9]+.*'
@@ -177,7 +175,7 @@ jobs:
 
       - name: end-to-end tests
         if: ${{ secrets.TOKEN != '' && vars.ROLE == 'forgejo-integration' }}
-        uses: https://code.forgejo.org/actions/cascading-pr@v1
+        uses: https://code.forgejo.org/actions/cascading-pr@v2
         with:
           origin-url: ${{ env.GITHUB_SERVER_URL }}
           origin-repo: ${{ github.repository }}
@@ -191,3 +189,25 @@ jobs:
           update: .forgejo/cascading-release-end-to-end
         env:
           FORGEJO_BINARY: "${{ env.GITHUB_SERVER_URL }}/${{ github.repository }}/releases/download/v${{ steps.release-info.outputs.version }}/forgejo-${{ steps.release-info.outputs.version }}-linux-amd64"
+
+      - name: copy to experimental
+        if: vars.ROLE == 'forgejo-integration' && secrets.TOKEN != ''
+        run: |
+          if test "${{ vars.VERBOSE }}" = true ; then
+            set -x
+          fi
+          tag=v${{ steps.release-info.outputs.version }}
+          url=https://any:${{ secrets.TOKEN }}@codeberg.org
+          if test "${{ steps.release-info.outputs.override }}" = "true" ; then
+            curl -sS -X DELETE $url/api/v1/repos/forgejo-experimental/forgejo/releases/tags/$tag > /dev/null
+            curl -sS -X DELETE $url/api/v1/repos/forgejo-experimental/forgejo/tags/$tag > /dev/null
+          fi
+          # actions/checkout@v3 sets http.https://codeberg.org/.extraheader with the automatic token.
+          # Get rid of it so it does not prevent using the token that has write permissions
+          git config --local --unset http.https://codeberg.org/.extraheader
+          if test -f .git/shallow ; then
+            echo "unexptected .git/shallow file is present"
+            echo "it suggests a checkout --depth X was used which may prevent pushing the commit"
+            echo "it happens when actions/checkout is called without depth: 0"
+          fi
+          git push $url/forgejo-experimental/forgejo ${{ steps.release-info.outputs.sha }}:refs/tags/$tag