add test for force_rebuild (#448)

see also [forgejo/runner #406](https://code.forgejo.org/forgejo/runner/pulls/406)

Reviewed-on: https://code.forgejo.org/forgejo/end-to-end/pulls/448
Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org>
Co-authored-by: gratux <gratux@noreply.code.forgejo.org>
Co-committed-by: gratux <gratux@noreply.code.forgejo.org>

actions/actions.sh

@@ -140,6 +140,10 @@ function test_actions() {
             done
         fi
 
+        if dpkg --compare-versions $runner_version gt 6.0.1; then
+            run actions_verify_example force-rebuild
+        fi
+
         if dpkg --compare-versions $version ge 7.0 && dpkg --compare-versions $runner_version gt 3.3.0; then
             for example in artifacts-v4; do
                 run actions_verify_example $example

actions/example-force-rebuild/.forgejo/local-docker-action/Dockerfile

@@ -0,0 +1,5 @@
+FROM debian:bookworm-slim
+COPY entrypoint.sh /run/entrypoint.sh
+# if we rebuild, we should notice this file change
+COPY input.txt /run/input.txt
+ENTRYPOINT [ "/run/entrypoint.sh" ]

actions/example-force-rebuild/.forgejo/local-docker-action/action.yml

@@ -0,0 +1,6 @@
+name: local docker action
+description: local docker action, build depends on "input.txt"
+
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

actions/example-force-rebuild/.forgejo/local-docker-action/entrypoint.sh

@@ -0,0 +1,3 @@
+#! /usr/bin/env bash
+set -x
+exit "$(< /run/input.txt)"

actions/example-force-rebuild/.forgejo/local-docker-action/input.txt

@@ -0,0 +1 @@
+this file will be filled by the test

actions/example-force-rebuild/.forgejo/workflows/test.yml

@@ -0,0 +1,10 @@
+---
+on:
+  push:
+jobs:
+  test:
+    runs-on: docker
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - uses: ./.forgejo/local-docker-action

actions/example-force-rebuild/run.sh

@@ -0,0 +1,34 @@
+function setup_with_rebuild() {
+    FORGEJO_RUNNER_CONFIG=$EXAMPLE_DIR/runner-config-with-rebuild.yml forgejo-runner.sh reload
+}
+
+function setup_without_rebuild() {
+    FORGEJO_RUNNER_CONFIG=$EXAMPLE_DIR/runner-config-without-rebuild.yml forgejo-runner.sh reload
+}
+
+function run() {
+    local expected="$1"
+    local repo=root/example-$example
+    forgejo-test-helper.sh push_workflow actions/example-$example $url root example-$example setup-forgejo $token
+    sha=$(forgejo-test-helper.sh branch_tip $url $repo main)
+    forgejo-test-helper.sh wait_$expected $url $repo $sha
+}
+
+function main() {
+    # set up passing docker action
+    echo "0" > $EXAMPLE_DIR/.forgejo/local-docker-action/input.txt
+    setup_with_rebuild
+    run success
+
+    # change docker action to fail
+    echo "1" > $EXAMPLE_DIR/.forgejo/local-docker-action/input.txt
+    # ... but without a rebuild, it should still pass
+    setup_without_rebuild
+    run success
+
+    # now the action should fail
+    setup_with_rebuild
+    run failure
+}
+
+main

actions/example-force-rebuild/runner-config-with-rebuild.yml

@@ -0,0 +1,30 @@
+log:
+  level: debug
+
+runner:
+  file: .runner
+  capacity: 1
+  env_file: .env
+  timeout: 3h
+  insecure: false
+  fetch_timeout: 5s
+  fetch_interval: 2s
+  labels: ["docker:docker://code.forgejo.org/oci/node:20-bookworm"]
+
+cache:
+  enabled: false
+  dir: ""
+  host: ""
+  port: 0
+
+container:
+  network: "bridge"
+  privileged: false
+  options:
+  workdir_parent:
+  valid_volumes: ["/srv/example"]
+  docker_host: ""
+  force_rebuild: true
+
+host:
+  workdir_parent:

actions/example-force-rebuild/runner-config-without-rebuild.yml

@@ -0,0 +1,30 @@
+log:
+  level: debug
+
+runner:
+  file: .runner
+  capacity: 1
+  env_file: .env
+  timeout: 3h
+  insecure: false
+  fetch_timeout: 5s
+  fetch_interval: 2s
+  labels: ["docker:docker://code.forgejo.org/oci/node:20-bookworm"]
+
+cache:
+  enabled: false
+  dir: ""
+  host: ""
+  port: 0
+
+container:
+  network: "bridge"
+  privileged: false
+  options:
+  workdir_parent:
+  valid_volumes: ["/srv/example"]
+  docker_host: ""
+  force_rebuild: false
+
+host:
+  workdir_parent:

actions/example-force-rebuild/teardown.sh

@@ -0,0 +1 @@
+forgejo-runner.sh reload