[CI] Revert "Restrict [actions].DEFAULT_ACTIONS_URL to only github or self (#25581)"

This reverts commit 67bd9d4f1e.

(cherry picked from commit 0547e94023)
(cherry picked from commit d21ad654ad)
(cherry picked from commit b905e9d838)
(cherry picked from commit 251a5bf235b1723bc2bc324f9e8c03a8668bb5ae)
(cherry picked from commit b370e47694)
(cherry picked from commit 2cc28d0785)
(cherry picked from commit ed870a39e9)

custom/conf/app.example.ini

@@ -2561,8 +2561,8 @@ LEVEL = Info
 ;; Enable/Disable actions capabilities
 ;ENABLED = false
 ;;
-;; Default platform to get action plugins, `github` for `https://github.com`, `self` for the current Gitea instance.
+;; Default address to get action plugins, e.g. the default value means downloading from "https://gitea.com/actions/checkout" for "uses: actions/checkout@v3"
-;DEFAULT_ACTIONS_URL = github
+;DEFAULT_ACTIONS_URL = https://gitea.com
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

docs/content/administration/config-cheat-sheet.en-us.md

@@ -1378,22 +1378,39 @@ PROXY_HOSTS = *.github.com
 ## Actions (`actions`)
 
 - `ENABLED`: **false**: Enable/Disable actions capabilities
-- `DEFAULT_ACTIONS_URL`: **github**: Default platform to get action plugins, `github` for `https://github.com`, `self` for the current Gitea instance.
+- `DEFAULT_ACTIONS_URL`: **https://gitea.com**: Default address to get action plugins, e.g. the default value means downloading from "<https://gitea.com/actions/checkout>" for "uses: actions/checkout@v3"
 - `STORAGE_TYPE`: **local**: Storage type for actions logs, `local` for local disk or `minio` for s3 compatible object storage service, default is `local` or other name defined with `[storage.xxx]`
 - `MINIO_BASE_PATH`: **actions_log/**: Minio base path on the bucket only available when STORAGE_TYPE is `minio`
 
-`DEFAULT_ACTIONS_URL` indicates where the Gitea Actions runners should find the actions with relative path.
+`DEFAULT_ACTIONS_URL` indicates where should we find the relative path action plugin. i.e. when use an action in a workflow file like
-For example, `uses: actions/checkout@v3` means `https://github.com/actions/checkout@v3` since the value of `DEFAULT_ACTIONS_URL` is `github`.
-And it can be changed to `self` to make it `root_url_of_your_gitea/actions/checkout@v3`.
 
-Please note that using `self` is not recommended for most cases, as it could make names globally ambiguous.
+```yaml
-Additionally, it requires you to mirror all the actions you need to your Gitea instance, which may not be worth it.
+name: versions
-Therefore, please use `self` only if you understand what you are doing.
+on:
+  push:
+    branches:
+      - main
+      - releases/*
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+```
 
-In earlier versions (<= 1.19), `DEFAULT_ACTIONS_URL` cound be set to any custom URLs like `https://gitea.com` or `http://your-git-server,https://gitea.com`, and the default value was `https://gitea.com`.
+Now we need to know how to get actions/checkout, this configuration is the default git server to get it. That means we will get the repository via git clone ${DEFAULT_ACTIONS_URL}/actions/checkout and fetch tag v3.
-However, later updates removed those options, and now the only options are `github` and `self`, with the default value being `github`.
+
-However, if you want to use actions from other git server, you can use a complete URL in `uses` field, it's supported by Gitea (but not GitHub).
+To help people who don't want to mirror these actions in their git instances, the default value is https://gitea.com
-Like `uses: https://gitea.com/actions/checkout@v3` or `uses: http://your-git-server/actions/checkout@v3`.
+To help people run actions totally in their network, they can change the value and copy all necessary action repositories into their git server.
+
+Of course we should support the form in future PRs like
+
+```yaml
+steps:
+  - uses: gitea.com/actions/checkout@v3
+```
+
+although Github don't support this form.
 
 ## Other (`other`)
 

modules/setting/actions.go

@@ -5,9 +5,6 @@ package setting
 
 import (
 	"fmt"
-	"strings"
-
-	"code.gitea.io/gitea/modules/log"
 )
 
 // Actions settings
@@ -16,36 +13,13 @@ var (
 		LogStorage        *Storage // how the created logs should be stored
 		ArtifactStorage   *Storage // how the created artifacts should be stored
 		Enabled           bool
-		DefaultActionsURL defaultActionsURL `ini:"DEFAULT_ACTIONS_URL"`
+		DefaultActionsURL string `ini:"DEFAULT_ACTIONS_URL"`
 	}{
 		Enabled:           false,
-		DefaultActionsURL: defaultActionsURLGitHub,
+		DefaultActionsURL: "https://gitea.com",
 	}
 )
 
-type defaultActionsURL string
-
-func (url defaultActionsURL) URL() string {
-	switch url {
-	case defaultActionsURLGitHub:
-		return "https://github.com"
-	case defaultActionsURLSelf:
-		return strings.TrimSuffix(AppURL, "/")
-	default:
-		// This should never happen, but just in case, use GitHub as fallback
-		return "https://github.com"
-	}
-}
-
-const (
-	defaultActionsURLGitHub = "github" // https://github.com
-	defaultActionsURLSelf   = "self"   // the root URL of the self-hosted Gitea instance
-	// DefaultActionsURL only supports GitHub and the self-hosted Gitea.
-	// It's intentionally not supported more, so please be cautious before adding more like "gitea" or "gitlab".
-	// If you get some trouble with `uses: username/action_name@version` in your workflow,
-	// please consider to use `uses: https://the_url_you_want_to_use/username/action_name@version` instead.
-)
-
 func loadActionsFrom(rootCfg ConfigProvider) error {
 	sec := rootCfg.Section("actions")
 	err := sec.MapTo(&Actions)
@@ -53,19 +27,6 @@ func loadActionsFrom(rootCfg ConfigProvider) error {
 		return fmt.Errorf("failed to map Actions settings: %v", err)
 	}
 
-	if urls := string(Actions.DefaultActionsURL); urls != defaultActionsURLGitHub && urls != defaultActionsURLSelf {
-		url := strings.Split(urls, ",")[0]
-		if strings.HasPrefix(url, "https://") || strings.HasPrefix(url, "http://") {
-			log.Error("[actions] DEFAULT_ACTIONS_URL does not support %q as custom URL any longer, fallback to %q",
-				urls,
-				defaultActionsURLGitHub,
-			)
-			Actions.DefaultActionsURL = defaultActionsURLGitHub
-		} else {
-			return fmt.Errorf("unsupported [actions] DEFAULT_ACTIONS_URL: %q", urls)
-		}
-	}
-
 	// don't support to read configuration from [actions]
 	Actions.LogStorage, err = getStorage(rootCfg, "actions_log", "", nil)
 	if err != nil {

modules/setting/actions_test.go

@@ -8,7 +8,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func Test_getStorageInheritNameSectionTypeForActions(t *testing.T) {
@@ -96,86 +95,3 @@ STORAGE_TYPE = minio
 	assert.EqualValues(t, "local", Actions.ArtifactStorage.Type)
 	assert.EqualValues(t, "actions_artifacts", filepath.Base(Actions.ArtifactStorage.Path))
 }
-
-func Test_getDefaultActionsURLForActions(t *testing.T) {
-	oldActions := Actions
-	oldAppURL := AppURL
-	defer func() {
-		Actions = oldActions
-		AppURL = oldAppURL
-	}()
-
-	AppURL = "http://test_get_default_actions_url_for_actions:3000/"
-
-	tests := []struct {
-		name    string
-		iniStr  string
-		wantErr assert.ErrorAssertionFunc
-		wantURL string
-	}{
-		{
-			name: "default",
-			iniStr: `
-[actions]
-`,
-			wantErr: assert.NoError,
-			wantURL: "https://github.com",
-		},
-		{
-			name: "github",
-			iniStr: `
-[actions]
-DEFAULT_ACTIONS_URL = github
-`,
-			wantErr: assert.NoError,
-			wantURL: "https://github.com",
-		},
-		{
-			name: "self",
-			iniStr: `
-[actions]
-DEFAULT_ACTIONS_URL = self
-`,
-			wantErr: assert.NoError,
-			wantURL: "http://test_get_default_actions_url_for_actions:3000",
-		},
-		{
-			name: "custom url",
-			iniStr: `
-[actions]
-DEFAULT_ACTIONS_URL = https://gitea.com
-`,
-			wantErr: assert.NoError,
-			wantURL: "https://github.com",
-		},
-		{
-			name: "custom urls",
-			iniStr: `
-[actions]
-DEFAULT_ACTIONS_URL = https://gitea.com,https://github.com
-`,
-			wantErr: assert.NoError,
-			wantURL: "https://github.com",
-		},
-		{
-			name: "invalid",
-			iniStr: `
-[actions]
-DEFAULT_ACTIONS_URL = gitea
-`,
-			wantErr: assert.Error,
-			wantURL: "https://github.com",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			cfg, err := NewConfigProviderFromData(tt.iniStr)
-			require.NoError(t, err)
-			if !tt.wantErr(t, loadActionsFrom(cfg)) {
-				return
-			}
-			assert.EqualValues(t, tt.wantURL, Actions.DefaultActionsURL.URL())
-		})
-	}
-}

routers/api/actions/runner/utils.go

@@ -184,7 +184,7 @@ func generateTaskContext(t *actions_model.ActionTask) *structpb.Struct {
 		"workspace":         "",                                                   // string, The default working directory on the runner for steps, and the default location of your repository when using the checkout action.
 
 		// additional contexts
-		"gitea_default_actions_url": setting.Actions.DefaultActionsURL.URL(),
+		"gitea_default_actions_url": setting.Actions.DefaultActionsURL,
 	})
 	if err != nil {
 		log.Error("structpb.NewStruct failed: %v", err)