feat: add forgejo_default_actions_url + forgejo_runtime_token

the context sent from the Forgejo instance is expected to have

gitea_default_actions_url
gitea_runtime_token

add support for

forgejo_default_actions_url
forgejo_runtime_token

as well so that future Forgejo versions can make the change.

internal/app/run/runner.go

@@ -206,8 +206,12 @@ func (r *Runner) run(ctx context.Context, task *runnerv1.Task, reporter *report.
 
 	taskContext := task.Context.Fields
 
+	defaultActionURL := client.BackwardCompatibleContext(task, "default_actions_url")
+	if defaultActionURL == "" {
+		return fmt.Errorf("task %v context does not contain a {forgejo,gitea}_default_actions_url key", task.Id)
+	}
 	log.Infof("task %v repo is %v %v %v", task.Id, taskContext["repository"].GetStringValue(),
-		taskContext["gitea_default_actions_url"].GetStringValue(),
+		defaultActionURL,
 		r.client.Address())
 
 	preset := &model.GithubContext{
@@ -241,12 +245,12 @@ func (r *Runner) run(ctx context.Context, task *runnerv1.Task, reporter *report.
 		runEnvs[id] = v
 	}
 
-	giteaRuntimeToken := taskContext["gitea_runtime_token"].GetStringValue()
+	runtimeToken := client.BackwardCompatibleContext(task, "runtime_token")
-	if giteaRuntimeToken == "" {
+	if runtimeToken == "" {
 		// use task token to action api token for previous Gitea Server Versions
-		giteaRuntimeToken = preset.Token
+		runtimeToken = preset.Token
 	}
-	runEnvs["ACTIONS_RUNTIME_TOKEN"] = giteaRuntimeToken
+	runEnvs["ACTIONS_RUNTIME_TOKEN"] = runtimeToken
 
 	// Register the run with the cacheproxy and modify the CACHE_URL
 	if r.cacheProxy != nil {
@@ -303,7 +307,7 @@ func (r *Runner) run(ctx context.Context, task *runnerv1.Task, reporter *report.
 		ContainerOptions:           r.cfg.Container.Options,
 		ContainerDaemonSocket:      r.cfg.Container.DockerHost,
 		Privileged:                 r.cfg.Container.Privileged,
-		DefaultActionInstance:      taskContext["gitea_default_actions_url"].GetStringValue(),
+		DefaultActionInstance:      defaultActionURL,
 		PlatformPicker:             r.labels.PickPlatform,
 		Vars:                       task.Vars,
 		ValidVolumes:               r.cfg.Container.ValidVolumes,

internal/pkg/client/backward.go

@@ -0,0 +1,18 @@
+// Copyright 2025 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package client
+
+import (
+	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+)
+
+func BackwardCompatibleContext(task *runnerv1.Task, suffix string) string {
+	for _, prefix := range []string{"forgejo_", "gitea_"} {
+		value := task.Context.Fields[prefix+suffix]
+		if value != nil {
+			return value.GetStringValue()
+		}
+	}
+	return ""
+}

internal/pkg/report/reporter.go

@@ -43,12 +43,12 @@ type Reporter struct {
 	stopCommandEndToken string
 }
 
-func NewReporter(ctx context.Context, cancel context.CancelFunc, client client.Client, task *runnerv1.Task, reportInterval time.Duration) *Reporter {
+func NewReporter(ctx context.Context, cancel context.CancelFunc, c client.Client, task *runnerv1.Task, reportInterval time.Duration) *Reporter {
 	var oldnew []string
 	if v := task.Context.Fields["token"].GetStringValue(); v != "" {
 		oldnew = append(oldnew, v, "***")
 	}
-	if v := task.Context.Fields["gitea_runtime_token"].GetStringValue(); v != "" {
+	if v := client.BackwardCompatibleContext(task, "runtime_token"); v != "" {
 		oldnew = append(oldnew, v, "***")
 	}
 	for _, v := range task.Secrets {
@@ -58,7 +58,7 @@ func NewReporter(ctx context.Context, cancel context.CancelFunc, client client.C
 	rv := &Reporter{
 		ctx:            ctx,
 		cancel:         cancel,
-		client:         client,
+		client:         c,
 		oldnew:         oldnew,
 		reportInterval: reportInterval,
 		logReplacer:    strings.NewReplacer(oldnew...),