Support Editorconfig on web editor (#3512)

routers/api/v1/api.go

@@ -290,6 +290,7 @@ func RegisterRoutes(m *macaron.Macaron) {
 						Patch(reqRepoWriter(), bind(api.EditMilestoneOption{}), repo.EditMilestone).
 						Delete(reqRepoWriter(), repo.DeleteMilestone)
 				})
+				m.Get("/editorconfig/:filename", context.RepoRef(), repo.GetEditorconfig)
 			}, repoAssignment())
 		}, reqToken())
 

routers/api/v1/repo/file.go

@@ -45,3 +45,23 @@ func GetArchive(ctx *context.APIContext) {
 
 	repo.Download(ctx.Context)
 }
+
+func GetEditorconfig(ctx *context.APIContext) {
+	ec, err := ctx.Repo.GetEditorconfig()
+	if err != nil {
+		if git.IsErrNotExist(err) {
+			ctx.Error(404, "GetEditorconfig", err)
+		} else {
+			ctx.Error(500, "GetEditorconfig", err)
+		}
+		return
+	}
+
+	fileName := ctx.Params("filename")
+	def := ec.GetDefinitionForFilename(fileName)
+	if def == nil {
+		ctx.Error(404, "GetDefinitionForFilename", err)
+		return
+	}
+	ctx.JSON(200, def)
+}

routers/repo/editor.go

@@ -98,6 +98,7 @@ func editFile(ctx *context.Context, isNewFile bool) {
 	ctx.Data["MarkdownFileExts"] = strings.Join(setting.Markdown.FileExtensions, ",")
 	ctx.Data["LineWrapExtensions"] = strings.Join(setting.Repository.Editor.LineWrapExtensions, ",")
 	ctx.Data["PreviewableFileModes"] = strings.Join(setting.Repository.Editor.PreviewableFileModes, ",")
+	ctx.Data["EditorconfigURLPrefix"] = fmt.Sprintf("%s/api/v1/repos/%s/editorconfig/", setting.AppSubUrl, ctx.Repo.Repository.FullName())
 
 	ctx.HTML(200, EDIT_FILE)
 }