feat(actions): add workflow status badge modal (#38196)

- Add a Create Status Badge button for selected Actions workflows.
- Show badge URL, Markdown, and HTML snippets backed by the existing
workflow badge route.

## Screenshots
<img width="553" height="470" alt="dyn-a5d565ab915b9ffb6c02ac68113494b0"
src="https://github.com/user-attachments/assets/43b4ceb9-bbd1-4024-b058-d85ec8325e88"
/>
<img width="349" height="156" alt="grafik"
src="https://github.com/user-attachments/assets/6eaec62d-ffb0-45c0-b63d-866a41a66005"
/>



Fixes https://github.com/go-gitea/gitea/issues/31462

---------

Signed-off-by: guanzi008 <245205080@qq.com>
Co-authored-by: bircni <bircni@icloud.com>

routers/web/repo/actions/actions.go

@@ -8,6 +8,7 @@ import (
 	stdCtx "context"
 	"errors"
 	"fmt"
+	"html"
 	"net/http"
 	"net/url"
 	"slices"
@@ -47,6 +48,15 @@ type WorkflowInfo struct {
 	Workflow *act_model.Workflow
 }
 
+type workflowBadge struct {
+	URL             string
+	WorkflowURL     string
+	Markdown        string
+	MarkdownAltText string
+	HTML            string
+	HTMLAltText     string
+}
+
 // DisplayName returns the workflow name from the YAML file if present, otherwise the filename.
 func (w WorkflowInfo) DisplayName() string {
 	if w.Workflow != nil && w.Workflow.Name != "" {
@@ -403,10 +413,16 @@ func prepareWorkflowList(ctx *context.Context, workflows []WorkflowInfo, otherWo
 	ctx.Data["Runs"] = runs
 
 	workflowNames := make(map[string]string, len(workflows))
+	workflowDisplayName := workflowID
 	for _, wf := range workflows {
-		workflowNames[wf.Entry.Name()] = wf.DisplayName()
+		displayName := wf.DisplayName()
+		workflowNames[wf.Entry.Name()] = displayName
+		if wf.Entry.Name() == workflowID {
+			workflowDisplayName = displayName
+		}
 	}
 	ctx.Data["WorkflowNames"] = workflowNames
+	prepareWorkflowBadgeTemplate(ctx, workflowID, workflowDisplayName)
 
 	actors, err := actions_model.GetActors(ctx, ctx.Repo.Repository.ID)
 	if err != nil {
@@ -432,6 +448,32 @@ func prepareWorkflowList(ctx *context.Context, workflows []WorkflowInfo, otherWo
 	ctx.Data["CanWriteRepoUnitActions"] = ctx.Repo.Permission.CanWrite(unit.TypeActions)
 }
 
+func prepareWorkflowBadgeTemplate(ctx *context.Context, workflowID, displayName string) {
+	if workflowID == "" {
+		return
+	}
+	if displayName == "" {
+		displayName = workflowID
+	}
+
+	repoURL := ctx.Repo.Repository.HTMLURL(ctx)
+	badgeURL := fmt.Sprintf("%s/actions/workflows/%s/badge.svg?branch=%s", repoURL, util.PathEscapeSegments(workflowID), url.QueryEscape(ctx.Repo.Repository.DefaultBranch))
+	workflowURL := fmt.Sprintf("%s/actions?workflow=%s", repoURL, url.QueryEscape(workflowID))
+
+	ctx.Data["WorkflowBadge"] = workflowBadge{
+		URL:             badgeURL,
+		WorkflowURL:     workflowURL,
+		Markdown:        fmt.Sprintf("[![%s](%s)](%s)", escapeMarkdownImageAltText(displayName), badgeURL, workflowURL),
+		MarkdownAltText: escapeMarkdownImageAltText(displayName),
+		HTML:            fmt.Sprintf(`<a href="%s"><img src="%s" alt="%s"></a>`, html.EscapeString(workflowURL), html.EscapeString(badgeURL), html.EscapeString(displayName)),
+		HTMLAltText:     displayName,
+	}
+}
+
+func escapeMarkdownImageAltText(s string) string {
+	return strings.NewReplacer(`\`, `\\`, `[`, `\[`, `]`, `\]`).Replace(s)
+}
+
 // loadIsRefDeleted loads the IsRefDeleted field for each run in the list.
 // TODO: move this function to models/actions/run_list.go but now it will result in a circular import.
 func loadIsRefDeleted(ctx stdCtx.Context, repoID int64, runs actions_model.RunList) error {

routers/web/repo/actions/actions_test.go

@@ -4,12 +4,18 @@
 package actions
 
 import (
+	"net/http"
+	"net/http/httptest"
 	"strings"
 	"testing"
 
 	actions_model "gitea.dev/models/actions"
 	"gitea.dev/models/db"
+	repo_model "gitea.dev/models/repo"
 	unittest "gitea.dev/models/unittest"
+	"gitea.dev/modules/setting"
+	"gitea.dev/modules/test"
+	web_context "gitea.dev/services/context"
 
 	act_model "gitea.com/gitea/runner/act/model"
 	"github.com/stretchr/testify/assert"
@@ -176,3 +182,48 @@ func Test_loadIsRefDeleted(t *testing.T) {
 		assert.True(t, run.IsRefDeleted)
 	}
 }
+
+func TestPrepareWorkflowBadgeTemplate(t *testing.T) {
+	defer test.MockVariableValue(&setting.IsInTesting, true)()
+	defer test.MockVariableValue(&setting.AppURL, "https://gitea.example.com/")()
+	defer test.MockVariableValue(&setting.AppSubURL, "")()
+	defer test.MockVariableValue(&setting.PublicURLDetection, setting.PublicURLNever)()
+
+	t.Run("no workflow selected", func(t *testing.T) {
+		ctx := newWorkflowBadgeTestContext(t)
+
+		prepareWorkflowBadgeTemplate(ctx, "", "ignored")
+
+		assert.NotContains(t, ctx.Data, "WorkflowBadge")
+	})
+
+	t.Run("selected workflow", func(t *testing.T) {
+		ctx := newWorkflowBadgeTestContext(t)
+
+		prepareWorkflowBadgeTemplate(ctx, "build/test workflow.yml", `CI [prod]\build "fast" <ok>`)
+
+		assert.Equal(t, workflowBadge{
+			URL:         "https://gitea.example.com/user1/repo1/actions/workflows/build/test%20workflow.yml/badge.svg?branch=release%2F1.0+%26+hotfix",
+			WorkflowURL: "https://gitea.example.com/user1/repo1/actions?workflow=build%2Ftest+workflow.yml",
+			Markdown: `[![CI \[prod\]\\build "fast" <ok>](https://gitea.example.com/user1/repo1/actions/workflows/build/test%20workflow.yml/badge.svg?branch=release%2F1.0+%26+hotfix)]` +
+				`(https://gitea.example.com/user1/repo1/actions?workflow=build%2Ftest+workflow.yml)`,
+			MarkdownAltText: `CI \[prod\]\\build "fast" <ok>`,
+			HTML:            `<a href="https://gitea.example.com/user1/repo1/actions?workflow=build%2Ftest+workflow.yml"><img src="https://gitea.example.com/user1/repo1/actions/workflows/build/test%20workflow.yml/badge.svg?branch=release%2F1.0+%26+hotfix" alt="CI [prod]\build &#34;fast&#34; &lt;ok&gt;"></a>`,
+			HTMLAltText:     `CI [prod]\build "fast" <ok>`,
+		}, ctx.Data["WorkflowBadge"])
+	})
+}
+
+func newWorkflowBadgeTestContext(t *testing.T) *web_context.Context {
+	t.Helper()
+
+	req := httptest.NewRequest(http.MethodGet, "https://gitea.example.com/user1/repo1/actions", nil)
+	resp := httptest.NewRecorder()
+	ctx := web_context.NewWebContext(web_context.NewBaseContextForTest(resp, req), nil, nil)
+	ctx.Repo.Repository = &repo_model.Repository{
+		OwnerName:     "user1",
+		Name:          "repo1",
+		DefaultBranch: "release/1.0 & hotfix",
+	}
+	return ctx
+}