actions: add automerge example

actions/actions.sh

@@ -114,7 +114,7 @@ function test_actions() {
 	fi
 
         if dpkg --compare-versions $version ge 7.1 ; then
-            for example in post-7-0-schedule ; do
+            for example in automerge post-7-0-schedule ; do
                 run actions_verify_example $example
             done
         fi

actions/example-automerge/.forgejo/workflows/test.yml

@@ -0,0 +1,13 @@
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: docker
+    container:
+      image: code.forgejo.org/oci/node:20-bookworm
+      options: "--volume /srv/example:/srv/example"
+
+    steps:
+      - run: |
+          ${{ vars.SCRIPT }}

actions/example-automerge/run.sh

@@ -0,0 +1,69 @@
+TMPDIR=$(mktemp -d)
+
+trap "rm -fr $TMPDIR" EXIT
+
+source $EXAMPLE_DIR/../../lib/lib.sh
+
+api=$url/api/v1
+export d=/srv/example/automerge
+
+PROOF='some proof'
+
+function main() {
+    #
+    # repository with a pull_request event workflow that always succeeds
+    #
+    mkdir -p $d
+
+    forgejo-test-helper.sh push_workflow actions/example-$example $url root example-$example setup-forgejo $token
+
+    local repo=root/example-automerge
+
+    forgejo-curl.sh api_json -X DELETE $api/repos/$repo/actions/variables/SCRIPT >&/dev/null || true
+    forgejo-curl.sh api_json -X POST --data-raw '{"value":"true"}' $api/repos/$repo/actions/variables/SCRIPT
+
+    (
+        cd $d
+        git clone $url/$repo
+        cd example-automerge
+        git checkout -b other
+        git config user.email root@example.com
+        git config user.name username
+        touch file-unique-to-the-pr-branch
+        echo other $PROOF >>README
+        git add .
+        git commit -m 'other change'
+        git push --force -u origin other
+    )
+
+    #
+    # make sure the runner won't race with the sequence that follows
+    #
+    forgejo-runner.sh teardown
+    #
+    # create a PR and schedule it for automerge when the workflow succeeds
+    #
+    api_pr_delete_all $api $repo
+    forgejo-curl.sh api_json --data-raw '{"title":"PR title","base":"main","head":"other"}' $api/repos/$repo/pulls >$TMPDIR/pr.json
+    local pr=$(jq -r .number <$TMPDIR/pr.json)
+    forgejo-curl.sh api_json --data-raw '{"Do":"merge","merge_when_checks_succeed":true}' $api/repos/$repo/pulls/$pr/merge
+    if api_pr_is_merged $api $repo $pr; then
+        echo pull request already merged although it should not be
+        return 1
+    fi
+    #
+    # run the workflow
+    #
+    forgejo-runner.sh run
+    local sha=$(api_branch_tip $api $repo other)
+    api_pr_wait_success $api $repo $sha
+    #
+    # verify the PR was automerged
+    #
+    if ! retry api_pr_is_merged $api $repo $pr; then
+        echo pull request is not automerged as expected
+        return 1
+    fi
+}
+
+main

actions/example-automerge/setup.sh

@@ -0,0 +1 @@
+mkdir -p /srv/example/automerge