Add workflow error notification in ui (#23404)

![image](https://user-images.githubusercontent.com/18380374/224237847-07a30029-32d4-4af7-a36e-e55f0ed899aa.png)

![image](https://user-images.githubusercontent.com/18380374/224239309-a96120e1-5eec-41c0-89aa-9cf63d1df30c.png)

---------

Co-authored-by: techknowlogick <matti@mdranta.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

modules/actions/workflows.go

@@ -44,6 +44,32 @@ func ListWorkflows(commit *git.Commit) (git.Entries, error) {
 	return ret, nil
 }
 
+func GetContentFromEntry(entry *git.TreeEntry) ([]byte, error) {
+	f, err := entry.Blob().DataAsync()
+	if err != nil {
+		return nil, err
+	}
+	content, err := io.ReadAll(f)
+	_ = f.Close()
+	if err != nil {
+		return nil, err
+	}
+	return content, nil
+}
+
+func GetEventsFromContent(content []byte) ([]*jobparser.Event, error) {
+	workflow, err := model.ReadWorkflow(bytes.NewReader(content))
+	if err != nil {
+		return nil, err
+	}
+	events, err := jobparser.ParseRawOn(&workflow.RawOn)
+	if err != nil {
+		return nil, err
+	}
+
+	return events, nil
+}
+
 func DetectWorkflows(commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader) (map[string][]byte, error) {
 	entries, err := ListWorkflows(commit)
 	if err != nil {
@@ -52,21 +78,11 @@ func DetectWorkflows(commit *git.Commit, triggedEvent webhook_module.HookEventTy
 
 	workflows := make(map[string][]byte, len(entries))
 	for _, entry := range entries {
-		f, err := entry.Blob().DataAsync()
+		content, err := GetContentFromEntry(entry)
 		if err != nil {
 			return nil, err
 		}
-		content, err := io.ReadAll(f)
-		_ = f.Close()
-		if err != nil {
-			return nil, err
-		}
-		workflow, err := model.ReadWorkflow(bytes.NewReader(content))
-		if err != nil {
-			log.Warn("ignore invalid workflow %q: %v", entry.Name(), err)
-			continue
-		}
-		events, err := jobparser.ParseRawOn(&workflow.RawOn)
+		events, err := GetEventsFromContent(content)
 		if err != nil {
 			log.Warn("ignore invalid workflow %q: %v", entry.Name(), err)
 			continue

options/locale/locale_en-US.ini

@@ -3360,5 +3360,7 @@ runs.open_tab = %d Open
 runs.closed_tab = %d Closed
 runs.commit = Commit
 runs.pushed_by = Pushed by
+runs.valid_workflow_helper = Workflow config file is valid.
+runs.invalid_workflow_helper = Workflow config file is invalid. Please check your config file: %s
 
 need_approval_desc = Need approval to run workflows for fork pull request.

routers/web/repo/actions/actions.go

@@ -23,6 +23,12 @@ const (
 	tplViewActions base.TplName = "repo/actions/view"
 )
 
+type Workflow struct {
+	Entry     git.TreeEntry
+	IsInvalid bool
+	ErrMsg    string
+}
+
 // MustEnableActions check if actions are enabled in settings
 func MustEnableActions(ctx *context.Context) {
 	if !setting.Actions.Enabled {
@@ -47,7 +53,7 @@ func List(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("actions.actions")
 	ctx.Data["PageIsActions"] = true
 
-	var workflows git.Entries
+	var workflows []Workflow
 	if empty, err := ctx.Repo.GitRepo.IsEmpty(); err != nil {
 		ctx.Error(http.StatusInternalServerError, err.Error())
 		return
@@ -62,13 +68,27 @@ func List(ctx *context.Context) {
 			ctx.Error(http.StatusInternalServerError, err.Error())
 			return
 		}
-		workflows, err = actions.ListWorkflows(commit)
+		entries, err := actions.ListWorkflows(commit)
 		if err != nil {
 			ctx.Error(http.StatusInternalServerError, err.Error())
 			return
 		}
+		workflows = make([]Workflow, 0, len(entries))
+		for _, entry := range entries {
+			workflow := Workflow{Entry: *entry}
+			content, err := actions.GetContentFromEntry(entry)
+			if err != nil {
+				ctx.Error(http.StatusInternalServerError, err.Error())
+				return
+			}
+			_, err = actions.GetEventsFromContent(content)
+			if err != nil {
+				workflow.IsInvalid = true
+				workflow.ErrMsg = err.Error()
+			}
+			workflows = append(workflows, workflow)
+		}
 	}
-
 	ctx.Data["workflows"] = workflows
 	ctx.Data["RepoLink"] = ctx.Repo.Repository.Link()
 

templates/repo/actions/list.tmpl

@@ -9,7 +9,17 @@
 					<a class="item{{if not $.CurWorkflow}} active{{end}}" href="{{$.Link}}">{{.locale.Tr "actions.runs.all_workflows"}}</a>
 					<div class="divider"></div>
 					{{range .workflows}}
-						<a class="item{{if eq .Name $.CurWorkflow}} active{{end}}" href="{{$.Link}}?workflow={{.Name}}">{{.Name}}</a>
+						<a class="item{{if eq .Entry.Name $.CurWorkflow}} active{{end}}" href="{{$.Link}}?workflow={{.Entry.Name}}">{{.Entry.Name}}
+							{{if .IsInvalid}}
+								<span class="tooltip" data-content="{{$.locale.Tr "actions.runs.invalid_workflow_helper" (.ErrMsg)}}">
+									<i class="warning icon red"></i>
+								</span>
+							{{else}}
+								<span class="tooltip" data-content="{{$.locale.Tr "actions.runs.valid_workflow_helper"}}">
+									<i class="check icon green"></i>
+								</span>
+							{{end}}
+						</a>
 					{{end}}
 				</div>
 			</div>