models: move ErrBranchNotExist to errors package

models/error.go

@@ -388,26 +388,6 @@ func (err ErrRepoFileAlreadyExist) Error() string {
 	return fmt.Sprintf("repository file already exists [file_name: %s]", err.FileName)
 }
 
-// __________                             .__
-// \______   \____________    ____   ____ |  |__
-//  |    |  _/\_  __ \__  \  /    \_/ ___\|  |  \
-//  |    |   \ |  | \// __ \|   |  \  \___|   Y  \
-//  |______  / |__|  (____  /___|  /\___  >___|  /
-//         \/             \/     \/     \/     \/
-
-type ErrBranchNotExist struct {
-	Name string
-}
-
-func IsErrBranchNotExist(err error) bool {
-	_, ok := err.(ErrBranchNotExist)
-	return ok
-}
-
-func (err ErrBranchNotExist) Error() string {
-	return fmt.Sprintf("branch does not exist [name: %s]", err.Name)
-}
-
 // __________      .__  .__ __________                                     __
 // \______   \__ __|  | |  |\______   \ ____  ________ __   ____   _______/  |_
 //  |     ___/  |  \  | |  | |       _// __ \/ ____/  |  \_/ __ \ /  ___/\   __\

models/errors/repo.go

@@ -72,3 +72,16 @@ func IsBranchAlreadyExists(err error) bool {
 func (err BranchAlreadyExists) Error() string {
 	return fmt.Sprintf("branch already exists [name: %s]", err.Name)
 }
+
+type ErrBranchNotExist struct {
+	Name string
+}
+
+func IsErrBranchNotExist(err error) bool {
+	_, ok := err.(ErrBranchNotExist)
+	return ok
+}
+
+func (err ErrBranchNotExist) Error() string {
+	return fmt.Sprintf("branch does not exist [name: %s]", err.Name)
+}

models/repo_branch.go

@@ -11,6 +11,7 @@ import (
 	"github.com/Unknwon/com"
 	"github.com/gogits/git-module"
 
+	"github.com/gogits/gogs/models/errors"
 	"github.com/gogits/gogs/pkg/tool"
 )
 
@@ -45,7 +46,7 @@ func GetBranchesByPath(path string) ([]*Branch, error) {
 
 func (repo *Repository) GetBranch(br string) (*Branch, error) {
 	if !git.IsBranchExist(repo.RepoPath(), br) {
-		return nil, ErrBranchNotExist{br}
+		return nil, errors.ErrBranchNotExist{br}
 	}
 	return &Branch{
 		RepoPath: repo.RepoPath(),
@@ -101,7 +102,7 @@ func GetProtectBranchOfRepoByName(repoID int64, name string) (*ProtectBranch, er
 	if err != nil {
 		return nil, err
 	} else if !has {
-		return nil, ErrBranchNotExist{name}
+		return nil, errors.ErrBranchNotExist{name}
 	}
 	return protectBranch, nil
 }