Add IsTemplate option in create repo ui and api (#12942)

Signed-off-by: a1012112796 <1012112796@qq.com>

Co-authored-by: Lauris BH <lauris@nix.lv>

routers/api/v1/repo/repo.go

@@ -245,6 +245,7 @@ func CreateUserRepo(ctx *context.APIContext, owner *models.User, opt api.CreateR
 		AutoInit:      opt.AutoInit,
 		DefaultBranch: opt.DefaultBranch,
 		TrustModel:    models.ToTrustModel(opt.TrustModel),
+		IsTemplate:    opt.Template,
 	})
 	if err != nil {
 		if models.IsErrRepoAlreadyExist(err) {

routers/repo/repo.go

@@ -250,6 +250,7 @@ func CreatePost(ctx *context.Context, form auth.CreateRepoForm) {
 			IsPrivate:     form.Private || setting.Repository.ForcePrivate,
 			DefaultBranch: form.DefaultBranch,
 			AutoInit:      form.AutoInit,
+			IsTemplate:    form.Template,
 			TrustModel:    models.ToTrustModel(form.TrustModel),
 		})
 		if err == nil {