Corrections following recommendations

models/repo.go

@@ -288,9 +288,9 @@ func (repo *Repository) GetMirror() (err error) {
 	return err
 }
 
-func (repo *Repository) GetBranch(br string) (_ *Branch, err error) {
+func (repo *Repository) GetBranch(br string) (*Branch, error) {
 	if(!git.IsBranchExist(repo.RepoPath(), br)){
-		return nil, errors.New("Branch do not exist");
+		return nil, fmt.Errorf("Branch does not exist: %s", br);
 	}
 	return &Branch{
 			Path: repo.RepoPath(),
@@ -298,7 +298,7 @@ func (repo *Repository) GetBranch(br string) (_ *Branch, err error) {
 	},nil
 }
 
-func (repo *Repository) GetBranches() (_ []*Branch, err error) {
+func (repo *Repository) GetBranches() ([]*Branch, error) {
 	return GetBranchesByPath(repo.RepoPath())
 }
 

models/repo_branch.go

@@ -1,3 +1,7 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
 package models
 
 import (
@@ -30,10 +34,6 @@ func GetBranchesByPath(path string) ([]*Branch, error) {
 	return Branches, nil
 }
 
-func GetBranchesByRepo(user,repo string) ([]*Branch, error) {
-	return GetBranchesByPath(RepoPath(user, repo))
-}
-
 func (br *Branch) GetCommit() (*git.Commit, error) {
 	gitRepo, err := git.OpenRepository(br.Path)
 	if err != nil {

routers/api/v1/api.go

@@ -185,7 +185,7 @@ func RegisterRoutes(m *macaron.Macaron) {
 				m.Get("/archive/*", repo.GetArchive)
 				m.Group("/branches", func() {
 					m.Get("",repo.ListBranches)
-					m.Get("/:id",repo.GetBranch)
+					m.Get("/:branchname",repo.GetBranch)
 				})
 				m.Group("/keys", func() {
 					m.Combo("").Get(repo.ListDeployKeys).

routers/api/v1/convert/convert.go

@@ -16,26 +16,6 @@ import (
 	"github.com/gogits/gogs/modules/setting"
 )
 
-// ToApiBranch converts user to its API format.
-func ToApiBranch(b *models.Branch,c *git.Commit) *api.Branch {
-	return &api.Branch{
-			Name: b.Name,
-			Commit: ToApiCommit(c),
-		}
-}
-// ToApiCommit converts user to its API format.
-func ToApiCommit(c *git.Commit) *api.PayloadCommit {
-	return &api.PayloadCommit{
-		ID: c.ID.String(),
-		Message: c.Message(),
-		URL: "Not implemented",
-		Author: &api.PayloadAuthor{
-			Name: c.Committer.Name,
-			Email: c.Committer.Email,
-			/* UserName: c.Committer.UserName, */
-		},
-	}
-}
 // ToApiUser converts user to its API format.
 func ToApiUser(u *models.User) *api.User {
 	return &api.User{
@@ -71,6 +51,28 @@ func ToApiRepository(owner *models.User, repo *models.Repository, permission api
 	}
 }
 
+// ToApiBranch converts user to its API format.
+func ToApiBranch(b *models.Branch,c *git.Commit) *api.Branch {
+	return &api.Branch{
+			Name: b.Name,
+			Commit: ToApiCommit(c),
+		}
+}
+
+// ToApiCommit converts user to its API format.
+func ToApiCommit(c *git.Commit) *api.PayloadCommit {
+	return &api.PayloadCommit{
+		ID: c.ID.String(),
+		Message: c.Message(),
+		URL: "Not implemented",
+		Author: &api.PayloadAuthor{
+			Name: c.Committer.Name,
+			Email: c.Committer.Email,
+			/* UserName: c.Committer.UserName, */
+		},
+	}
+}
+
 // ToApiPublicKey converts public key to its API format.
 func ToApiPublicKey(apiLink string, key *models.PublicKey) *api.PublicKey {
 	return &api.PublicKey{

routers/api/v1/repo/branch.go

@@ -1,4 +1,4 @@
-// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2016 The Gogs Authors. All rights reserved.
 // Use of this source code is governed by a MIT-style
 // license that can be found in the LICENSE file.
 
@@ -15,7 +15,7 @@ import (
 // https://github.com/gogits/go-gogs-client/wiki/Repositories-Branches#get-a-branch
 func GetBranch(ctx *middleware.Context) {
 	// Getting the branch requested
-	branch, err := ctx.Repo.Repository.GetBranch(ctx.Params(":id"))
+	branch, err := ctx.Repo.Repository.GetBranch(ctx.Params(":branchname"))
 	if err != nil {
 		ctx.APIError(500, "Repository.GetBranch", err)
 		return