remote.Head and repository.PullDefault

Author: mcuadros

remote.go

@@ -81,6 +81,11 @@ func (r *Remote) DefaultBranch() string {
 	return r.upInfo.Capabilities.SymbolicReference("HEAD")
 }
 
+// Head returns the Hash of the HEAD
+func (r *Remote) Head() (core.Hash, error) {
+	return r.Ref(r.DefaultBranch())
+}
+
 // Fetch returns a reader using the request
 func (r *Remote) Fetch(req *common.GitUploadPackRequest) (io.ReadCloser, error) {
 	return r.upSrv.Fetch(req)

remote_test.go

@@ -2,6 +2,7 @@ package git
 
 import (
 	"gopkg.in/src-d/go-git.v3/clients/http"
+	"gopkg.in/src-d/go-git.v3/core"
 	"gopkg.in/src-d/go-git.v3/formats/packfile"
 	"gopkg.in/src-d/go-git.v3/storage/memory"
 
@@ -62,3 +63,17 @@ func (s *SuiteRemote) TestFetchDefaultBranch(c *C) {
 	c.Assert(err, IsNil)
 	c.Assert(storage.Objects, HasLen, 28)
 }
+
+func (s *SuiteRemote) TestHead(c *C) {
+	r, err := NewRemote(RepositoryFixture)
+	r.upSrv = &MockGitUploadPackService{}
+
+	c.Assert(err, IsNil)
+
+	err = r.Connect()
+	c.Assert(err, IsNil)
+
+	hash, err := r.Head()
+	c.Assert(err, IsNil)
+	c.Assert(hash, Equals, core.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5"))
+}

repository.go

@@ -91,6 +91,16 @@ func (r *Repository) Pull(remoteName, branch string) (err error) {
 	return nil
 }
 
+// PullDefault like Pull but retrieve the default branch from the default remote
+func (r *Repository) PullDefault() (err error) {
+	remote, ok := r.Remotes[DefaultRemoteName]
+	if !ok {
+		return fmt.Errorf("unable to find default remote %q", DefaultRemoteName)
+	}
+
+	return r.Pull(DefaultRemoteName, remote.DefaultBranch())
+}
+
 // Commit return the commit with the given hash
 func (r *Repository) Commit(h core.Hash) (*Commit, error) {
 	obj, err := r.Storage.Get(h)

repository_test.go

@@ -46,6 +46,20 @@ func (s *SuiteRepository) TestPull(c *C) {
 	c.Assert(err, Not(IsNil), Commentf("pull leaks an open fd from the fetch"))
 }
 
+func (s *SuiteRepository) TestPullDefault(c *C) {
+	r, err := NewRepository(RepositoryFixture, nil)
+	r.Remotes[DefaultRemoteName].Connect()
+	r.Remotes[DefaultRemoteName].upSrv = &MockGitUploadPackService{}
+
+	c.Assert(err, IsNil)
+	c.Assert(r.PullDefault(), IsNil)
+
+	mock, ok := (r.Remotes[DefaultRemoteName].upSrv).(*MockGitUploadPackService)
+	c.Assert(ok, Equals, true)
+	err = mock.RC.Close()
+	c.Assert(err, Not(IsNil), Commentf("pull leaks an open fd from the fetch"))
+}
+
 func (s *SuiteRepository) TestCommit(c *C) {
 	r, err := NewRepository(RepositoryFixture, nil)
 	r.Remotes["origin"].upSrv = &MockGitUploadPackService{}