Make runs-on support variable expression (#29468)

As title.
Close issue: https://gitea.com/gitea/act_runner/issues/445
Follow: https://gitea.com/gitea/act/pulls/91

Move `getSecretsOfTask` and `getVariablesOfTask` under `models` because
of circular dependency issues.

(cherry picked from commit a1f5dd767729e30d07ab42fda80c19f30a72679f)

6 files changed, 99 insertions, 72 deletions

diff --git a/go.mod b/go.mod
index 32fdca26fe..837b233171 100644
--- a/go.mod
+++ b/go.mod
@@ -299,7 +299,7 @@ replace github.com/hashicorp/go-version => github.com/6543/go-version v1.3.1
 
 replace github.com/shurcooL/vfsgen => github.com/lunny/vfsgen v0.0.0-20220105142115-2c99e1ffdfa0
 
-replace github.com/nektos/act => gitea.com/gitea/act v0.2.51
+replace github.com/nektos/act => gitea.com/gitea/act v0.259.1
 
 replace github.com/gorilla/feeds => github.com/yardenshoham/feeds v0.0.0-20240110072658-f3d0c21c0bd5
 
diff --git a/go.sum b/go.sum
index 6788280b12..5f7c04bb0e 100644
--- a/go.sum
+++ b/go.sum
@@ -52,8 +52,8 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 git.sr.ht/~mariusor/go-xsd-duration v0.0.0-20220703122237-02e73435a078 h1:cliQ4HHsCo6xi2oWZYKWW4bly/Ory9FuTpFPRxj/mAg=
 git.sr.ht/~mariusor/go-xsd-duration v0.0.0-20220703122237-02e73435a078/go.mod h1:g/V2Hjas6Z1UHUp4yIx6bATpNzJ7DYtD0FG3+xARWxs=
-gitea.com/gitea/act v0.2.51 h1:gXc/B4OlTciTTzAx9cmNyw04n2SDO7exPjAsR5Idu+c=
-gitea.com/gitea/act v0.2.51/go.mod h1:CoaX2053jqBlD6JMgu4d4UgFL/rp2I14Kt5mMqcs0Z0=
+gitea.com/gitea/act v0.259.1 h1:8GG1o/xtUHl3qjn5f0h/2FXrT5ubBn05TJOM5ry+FBw=
+gitea.com/gitea/act v0.259.1/go.mod h1:UxZWRYqQG2Yj4+4OqfGWW5a3HELwejyWFQyU7F1jUD8=
 gitea.com/go-chi/binding v0.0.0-20230415142243-04b515c6d669 h1:RUBX+MK/TsDxpHmymaOaydfigEbbzqUnG1OTZU/HAeo=
 gitea.com/go-chi/binding v0.0.0-20230415142243-04b515c6d669/go.mod h1:77TZu701zMXWJFvB8gvTbQ92zQ3DQq/H7l5wAEjQRKc=
 gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e/go.mod h1:k2V/gPDEtXGjjMGuBJiapffAXTv76H4snSmlJRLUhH0=
diff --git a/models/actions/variable.go b/models/actions/variable.go
index 12717e0ae4..14ded60fac 100644
--- a/models/actions/variable.go
+++ b/models/actions/variable.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
 
@@ -82,3 +83,35 @@ func UpdateVariable(ctx context.Context, variable *ActionVariable) (bool, error)
 		})
 	return count != 0, err
 }
+
+func GetVariablesOfRun(ctx context.Context, run *ActionRun) (map[string]string, error) {
+	variables := map[string]string{}
+
+	// Global
+	globalVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{})
+	if err != nil {
+		log.Error("find global variables: %v", err)
+		return nil, err
+	}
+
+	// Org / User level
+	ownerVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{OwnerID: run.Repo.OwnerID})
+	if err != nil {
+		log.Error("find variables of org: %d, error: %v", run.Repo.OwnerID, err)
+		return nil, err
+	}
+
+	// Repo level
+	repoVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{RepoID: run.RepoID})
+	if err != nil {
+		log.Error("find variables of repo: %d, error: %v", run.RepoID, err)
+		return nil, err
+	}
+
+	// Level precedence: Repo > Org / User > Global
+	for _, v := range append(globalVariables, append(ownerVariables, repoVariables...)...) {
+		variables[v.Name] = v.Data
+	}
+
+	return variables, nil
+}
diff --git a/models/secret/secret.go b/models/secret/secret.go
index 41e860d7f6..35bed500b9 100644
--- a/models/secret/secret.go
+++ b/models/secret/secret.go
@@ -9,7 +9,10 @@ import (
 	"fmt"
 	"strings"
 
+	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
+	actions_module "code.gitea.io/gitea/modules/actions"
+	"code.gitea.io/gitea/modules/log"
 	secret_module "code.gitea.io/gitea/modules/secret"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
@@ -112,3 +115,39 @@ func UpdateSecret(ctx context.Context, secretID int64, data string) error {
 	}
 	return err
 }
+
+func GetSecretsOfTask(ctx context.Context, task *actions_model.ActionTask) (map[string]string, error) {
+	secrets := map[string]string{}
+
+	secrets["GITHUB_TOKEN"] = task.Token
+	secrets["GITEA_TOKEN"] = task.Token
+
+	if task.Job.Run.IsForkPullRequest && task.Job.Run.TriggerEvent != actions_module.GithubEventPullRequestTarget {
+		// ignore secrets for fork pull request, except GITHUB_TOKEN and GITEA_TOKEN which are automatically generated.
+		// for the tasks triggered by pull_request_target event, they could access the secrets because they will run in the context of the base branch
+		// see the documentation: https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
+		return secrets, nil
+	}
+
+	ownerSecrets, err := db.Find[Secret](ctx, FindSecretsOptions{OwnerID: task.Job.Run.Repo.OwnerID})
+	if err != nil {
+		log.Error("find secrets of owner %v: %v", task.Job.Run.Repo.OwnerID, err)
+		return nil, err
+	}
+	repoSecrets, err := db.Find[Secret](ctx, FindSecretsOptions{RepoID: task.Job.Run.RepoID})
+	if err != nil {
+		log.Error("find secrets of repo %v: %v", task.Job.Run.RepoID, err)
+		return nil, err
+	}
+
+	for _, secret := range append(ownerSecrets, repoSecrets...) {
+		v, err := secret_module.DecryptSecret(setting.SecretKey, secret.Data)
+		if err != nil {
+			log.Error("decrypt secret %v %q: %v", secret.ID, secret.Name, err)
+			return nil, err
+		}
+		secrets[secret.Name] = v
+	}
+
+	return secrets, nil
+}
diff --git a/routers/api/actions/runner/utils.go b/routers/api/actions/runner/utils.go
index a7cb31288c..ff6ec5bd54 100644
--- a/routers/api/actions/runner/utils.go
+++ b/routers/api/actions/runner/utils.go
@@ -15,7 +15,6 @@ import (
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
-	secret_module "code.gitea.io/gitea/modules/secret"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/services/actions"
 
@@ -32,14 +31,24 @@ func pickTask(ctx context.Context, runner *actions_model.ActionRunner) (*runnerv
 		return nil, false, nil
 	}
 
+	secrets, err := secret_model.GetSecretsOfTask(ctx, t)
+	if err != nil {
+		return nil, false, fmt.Errorf("GetSecretsOfTask: %w", err)
+	}
+
+	vars, err := actions_model.GetVariablesOfRun(ctx, t.Job.Run)
+	if err != nil {
+		return nil, false, fmt.Errorf("GetVariablesOfRun: %w", err)
+	}
+
 	actions.CreateCommitStatus(ctx, t.Job)
 
 	task := &runnerv1.Task{
 		Id:              t.ID,
 		WorkflowPayload: t.Job.WorkflowPayload,
 		Context:         generateTaskContext(t),
-		Secrets:         getSecretsOfTask(ctx, t),
-		Vars:            getVariablesOfTask(ctx, t),
+		Secrets:         secrets,
+		Vars:            vars,
 	}
 
 	if needs, err := findTaskNeeds(ctx, t); err != nil {
@@ -55,71 +64,6 @@ func pickTask(ctx context.Context, runner *actions_model.ActionRunner) (*runnerv
 	return task, true, nil
 }
 
-func getSecretsOfTask(ctx context.Context, task *actions_model.ActionTask) map[string]string {
-	secrets := map[string]string{}
-
-	secrets["GITHUB_TOKEN"] = task.Token
-	secrets["GITEA_TOKEN"] = task.Token
-
-	if task.Job.Run.IsForkPullRequest && task.Job.Run.TriggerEvent != actions_module.GithubEventPullRequestTarget {
-		// ignore secrets for fork pull request, except GITHUB_TOKEN and GITEA_TOKEN which are automatically generated.
-		// for the tasks triggered by pull_request_target event, they could access the secrets because they will run in the context of the base branch
-		// see the documentation: https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
-		return secrets
-	}
-
-	ownerSecrets, err := db.Find[secret_model.Secret](ctx, secret_model.FindSecretsOptions{OwnerID: task.Job.Run.Repo.OwnerID})
-	if err != nil {
-		log.Error("find secrets of owner %v: %v", task.Job.Run.Repo.OwnerID, err)
-		// go on
-	}
-	repoSecrets, err := db.Find[secret_model.Secret](ctx, secret_model.FindSecretsOptions{RepoID: task.Job.Run.RepoID})
-	if err != nil {
-		log.Error("find secrets of repo %v: %v", task.Job.Run.RepoID, err)
-		// go on
-	}
-
-	for _, secret := range append(ownerSecrets, repoSecrets...) {
-		if v, err := secret_module.DecryptSecret(setting.SecretKey, secret.Data); err != nil {
-			log.Error("decrypt secret %v %q: %v", secret.ID, secret.Name, err)
-			// go on
-		} else {
-			secrets[secret.Name] = v
-		}
-	}
-
-	return secrets
-}
-
-func getVariablesOfTask(ctx context.Context, task *actions_model.ActionTask) map[string]string {
-	variables := map[string]string{}
-
-	// Global
-	globalVariables, err := db.Find[actions_model.ActionVariable](ctx, actions_model.FindVariablesOpts{})
-	if err != nil {
-		log.Error("find global variables: %v", err)
-	}
-
-	// Org / User level
-	ownerVariables, err := db.Find[actions_model.ActionVariable](ctx, actions_model.FindVariablesOpts{OwnerID: task.Job.Run.Repo.OwnerID})
-	if err != nil {
-		log.Error("find variables of org: %d, error: %v", task.Job.Run.Repo.OwnerID, err)
-	}
-
-	// Repo level
-	repoVariables, err := db.Find[actions_model.ActionVariable](ctx, actions_model.FindVariablesOpts{RepoID: task.Job.Run.RepoID})
-	if err != nil {
-		log.Error("find variables of repo: %d, error: %v", task.Job.Run.RepoID, err)
-	}
-
-	// Level precedence: Repo > Org / User > Global
-	for _, v := range append(globalVariables, append(ownerVariables, repoVariables...)...) {
-		variables[v.Name] = v.Data
-	}
-
-	return variables
-}
-
 func generateTaskContext(t *actions_model.ActionTask) *structpb.Struct {
 	event := map[string]any{}
 	_ = json.Unmarshal([]byte(t.Job.Run.EventPayload), &event)
diff --git a/services/actions/notifier_helper.go b/services/actions/notifier_helper.go
index 19a5c66b71..6f0e8058a0 100644
--- a/services/actions/notifier_helper.go
+++ b/services/actions/notifier_helper.go
@@ -305,7 +305,18 @@ func handleWorkflows(
 			run.NeedApproval = need
 		}
 
-		jobs, err := jobparser.Parse(dwf.Content)
+		if err := run.LoadAttributes(ctx); err != nil {
+			log.Error("LoadAttributes: %v", err)
+			continue
+		}
+
+		vars, err := actions_model.GetVariablesOfRun(ctx, run)
+		if err != nil {
+			log.Error("GetVariablesOfRun: %v", err)
+			continue
+		}
+
+		jobs, err := jobparser.Parse(dwf.Content, jobparser.WithVars(vars))
 		if err != nil {
 			log.Error("jobparser.Parse: %v", err)
 			continue