package dotgit
import (
"bufio"
"io/ioutil"
"os"
"path/filepath"
"runtime"
"strings"
"testing"
"gopkg.in/src-d/go-billy.v4"
"gopkg.in/src-d/go-git.v4/plumbing"
. "gopkg.in/check.v1"
"gopkg.in/src-d/go-billy.v4/osfs"
"gopkg.in/src-d/go-git-fixtures.v3"
)
func Test(t *testing.T) { TestingT(t) }
type SuiteDotGit struct {
fixtures.Suite
}
var _ = Suite(&SuiteDotGit{})
func (s *SuiteDotGit) TestInitialize(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
err = dir.Initialize()
c.Assert(err, IsNil)
_, err = fs.Stat(fs.Join("objects", "info"))
c.Assert(err, IsNil)
_, err = fs.Stat(fs.Join("objects", "pack"))
c.Assert(err, IsNil)
_, err = fs.Stat(fs.Join("refs", "heads"))
c.Assert(err, IsNil)
_, err = fs.Stat(fs.Join("refs", "tags"))
c.Assert(err, IsNil)
}
func (s *SuiteDotGit) TestSetRefs(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
testSetRefs(c, dir)
}
func (s *SuiteDotGit) TestSetRefsNorwfs(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(&norwfs{fs})
testSetRefs(c, dir)
}
func testSetRefs(c *C, dir *DotGit) {
firstFoo := plumbing.NewReferenceFromStrings(
"refs/heads/foo",
"e8d3ffab552895c19b9fcf7aa264d277cde33881",
)
err := dir.SetRef(firstFoo, nil)
c.Assert(err, IsNil)
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/symbolic",
"ref: refs/heads/foo",
), nil)
c.Assert(err, IsNil)
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"bar",
"e8d3ffab552895c19b9fcf7aa264d277cde33881",
), nil)
c.Assert(err, IsNil)
refs, err := dir.Refs()
c.Assert(err, IsNil)
c.Assert(refs, HasLen, 2)
ref := findReference(refs, "refs/heads/foo")
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "e8d3ffab552895c19b9fcf7aa264d277cde33881")
ref = findReference(refs, "refs/heads/symbolic")
c.Assert(ref, NotNil)
c.Assert(ref.Target().String(), Equals, "refs/heads/foo")
ref = findReference(refs, "bar")
c.Assert(ref, IsNil)
ref, err = dir.Ref("refs/heads/foo")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "e8d3ffab552895c19b9fcf7aa264d277cde33881")
ref, err = dir.Ref("refs/heads/symbolic")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Target().String(), Equals, "refs/heads/foo")
ref, err = dir.Ref("bar")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "e8d3ffab552895c19b9fcf7aa264d277cde33881")
// Check that SetRef with a non-nil `old` works.
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/foo",
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5",
), firstFoo)
c.Assert(err, IsNil)
// `firstFoo` is no longer the right `old` reference, so this
// should fail.
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/foo",
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5",
), firstFoo)
c.Assert(err, NotNil)
}
func (s *SuiteDotGit) TestRefsFromPackedRefs(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
refs, err := dir.Refs()
c.Assert(err, IsNil)
ref := findReference(refs, "refs/remotes/origin/branch")
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "e8d3ffab552895c19b9fcf7aa264d277cde33881")
}
func (s *SuiteDotGit) TestRefsFromReferenceFile(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
refs, err := dir.Refs()
c.Assert(err, IsNil)
ref := findReference(refs, "refs/remotes/origin/HEAD")
c.Assert(ref, NotNil)
c.Assert(ref.Type(), Equals, plumbing.SymbolicReference)
c.Assert(string(ref.Target()), Equals, "refs/remotes/origin/master")
}
func BenchmarkRefMultipleTimes(b *testing.B) {
fixtures.Init()
fs := fixtures.Basic().ByTag(".git").One().DotGit()
refname := plumbing.ReferenceName("refs/remotes/origin/branch")
dir := New(fs)
_, err := dir.Ref(refname)
if err != nil {
b.Fatalf("unexpected error: %s", err)
}
for i := 0; i < b.N; i++ {
_, err := dir.Ref(refname)
if err != nil {
b.Fatalf("unexpected error: %s", err)
}
}
}
func (s *SuiteDotGit) TestRemoveRefFromReferenceFile(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
name := plumbing.ReferenceName("refs/remotes/origin/HEAD")
err := dir.RemoveRef(name)
c.Assert(err, IsNil)
refs, err := dir.Refs()
c.Assert(err, IsNil)
ref := findReference(refs, string(name))
c.Assert(ref, IsNil)
}
func (s *SuiteDotGit) TestRemoveRefFromPackedRefs(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
name := plumbing.ReferenceName("refs/remotes/origin/master")
err := dir.RemoveRef(name)
c.Assert(err, IsNil)
b, err := ioutil.ReadFile(filepath.Join(fs.Root(), packedRefsPath))
c.Assert(err, IsNil)
c.Assert(string(b), Equals, ""+
"# pack-refs with: peeled fully-peeled \n"+
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5 refs/heads/master\n"+
"e8d3ffab552895c19b9fcf7aa264d277cde33881 refs/remotes/origin/branch\n")
}
func (s *SuiteDotGit) TestRemoveRefFromReferenceFileAndPackedRefs(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
// Make a ref file for a ref that's already in `packed-refs`.
err := dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/remotes/origin/branch",
"e8d3ffab552895c19b9fcf7aa264d277cde33881",
), nil)
c.Assert(err, IsNil)
// Make sure it only appears once in the refs list.
refs, err := dir.Refs()
c.Assert(err, IsNil)
found := false
for _, ref := range refs {
if ref.Name() == "refs/remotes/origin/branch" {
c.Assert(found, Equals, false)
found = true
}
}
name := plumbing.ReferenceName("refs/remotes/origin/branch")
err = dir.RemoveRef(name)
c.Assert(err, IsNil)
b, err := ioutil.ReadFile(filepath.Join(fs.Root(), packedRefsPath))
c.Assert(err, IsNil)
c.Assert(string(b), Equals, ""+
"# pack-refs with: peeled fully-peeled \n"+
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5 refs/heads/master\n"+
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5 refs/remotes/origin/master\n")
refs, err = dir.Refs()
c.Assert(err, IsNil)
ref := findReference(refs, string(name))
c.Assert(ref, IsNil)
}
func (s *SuiteDotGit) TestRemoveRefNonExistent(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
packedRefs := filepath.Join(fs.Root(), packedRefsPath)
before, err := ioutil.ReadFile(packedRefs)
c.Assert(err, IsNil)
name := plumbing.ReferenceName("refs/heads/nonexistent")
err = dir.RemoveRef(name)
c.Assert(err, IsNil)
after, err := ioutil.ReadFile(packedRefs)
c.Assert(err, IsNil)
c.Assert(string(before), Equals, string(after))
}
func (s *SuiteDotGit) TestRemoveRefInvalidPackedRefs(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
packedRefs := filepath.Join(fs.Root(), packedRefsPath)
brokenContent := "BROKEN STUFF REALLY BROKEN"
err := ioutil.WriteFile(packedRefs, []byte(brokenContent), os.FileMode(0755))
c.Assert(err, IsNil)
name := plumbing.ReferenceName("refs/heads/nonexistent")
err = dir.RemoveRef(name)
c.Assert(err, NotNil)
after, err := ioutil.ReadFile(filepath.Join(fs.Root(), packedRefsPath))
c.Assert(err, IsNil)
c.Assert(brokenContent, Equals, string(after))
}
func (s *SuiteDotGit) TestRemoveRefInvalidPackedRefs2(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
packedRefs := filepath.Join(fs.Root(), packedRefsPath)
brokenContent := strings.Repeat("a", bufio.MaxScanTokenSize*2)
err := ioutil.WriteFile(packedRefs, []byte(brokenContent), os.FileMode(0755))
c.Assert(err, IsNil)
name := plumbing.ReferenceName("refs/heads/nonexistent")
err = dir.RemoveRef(name)
c.Assert(err, NotNil)
after, err := ioutil.ReadFile(filepath.Join(fs.Root(), packedRefsPath))
c.Assert(err, IsNil)
c.Assert(brokenContent, Equals, string(after))
}
func (s *SuiteDotGit) TestRefsFromHEADFile(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
refs, err := dir.Refs()
c.Assert(err, IsNil)
ref := findReference(refs, "HEAD")
c.Assert(ref, NotNil)
c.Assert(ref.Type(), Equals, plumbing.SymbolicReference)
c.Assert(string(ref.Target()), Equals, "refs/heads/master")
}
func (s *SuiteDotGit) TestConfig(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
file, err := dir.Config()
c.Assert(err, IsNil)
c.Assert(filepath.Base(file.Name()), Equals, "config")
}
func (s *SuiteDotGit) TestConfigWriteAndConfig(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
f, err := dir.ConfigWriter()
c.Assert(err, IsNil)
_, err = f.Write([]byte("foo"))
c.Assert(err, IsNil)
f, err = dir.Config()
c.Assert(err, IsNil)
cnt, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
c.Assert(string(cnt), Equals, "foo")
}
func (s *SuiteDotGit) TestIndex(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
idx, err := dir.Index()
c.Assert(err, IsNil)
c.Assert(idx, NotNil)
}
func (s *SuiteDotGit) TestIndexWriteAndIndex(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
f, err := dir.IndexWriter()
c.Assert(err, IsNil)
_, err = f.Write([]byte("foo"))
c.Assert(err, IsNil)
f, err = dir.Index()
c.Assert(err, IsNil)
cnt, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
c.Assert(string(cnt), Equals, "foo")
}
func (s *SuiteDotGit) TestShallow(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
file, err := dir.Shallow()
c.Assert(err, IsNil)
c.Assert(file, IsNil)
}
func (s *SuiteDotGit) TestShallowWriteAndShallow(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
f, err := dir.ShallowWriter()
c.Assert(err, IsNil)
_, err = f.Write([]byte("foo"))
c.Assert(err, IsNil)
f, err = dir.Shallow()
c.Assert(err, IsNil)
cnt, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
c.Assert(string(cnt), Equals, "foo")
}
func findReference(refs []*plumbing.Reference, name string) *plumbing.Reference {
n := plumbing.ReferenceName(name)
for _, ref := range refs {
if ref.Name() == n {
return ref
}
}
return nil
}
func (s *SuiteDotGit) TestObjectPacks(c *C) {
f := fixtures.Basic().ByTag(".git").One()
fs := f.DotGit()
dir := New(fs)
testObjectPacks(c, fs, dir, f)
}
func (s *SuiteDotGit) TestObjectPacksExclusive(c *C) {
f := fixtures.Basic().ByTag(".git").One()
fs := f.DotGit()
dir := NewWithOptions(fs, Options{ExclusiveAccess: true})
testObjectPacks(c, fs, dir, f)
}
func testObjectPacks(c *C, fs billy.Filesystem, dir *DotGit, f *fixtures.Fixture) {
hashes, err := dir.ObjectPacks()
c.Assert(err, IsNil)
c.Assert(hashes, HasLen, 1)
c.Assert(hashes[0], Equals, f.PackfileHash)
// Make sure that a random file in the pack directory doesn't
// break everything.
badFile, err := fs.Create("objects/pack/OOPS_THIS_IS_NOT_RIGHT.pack")
c.Assert(err, IsNil)
err = badFile.Close()
c.Assert(err, IsNil)
// temporary file generated by git gc
tmpFile, err := fs.Create("objects/pack/.tmp-11111-pack-58rf8y4wm1b1k52bpe0kdlx6lpreg6ahso8n3ylc.pack")
c.Assert(err, IsNil)
err = tmpFile.Close()
c.Assert(err, IsNil)
hashes2, err := dir.ObjectPacks()
c.Assert(err, IsNil)
c.Assert(hashes2, HasLen, 1)
c.Assert(hashes[0], Equals, hashes2[0])
}
func (s *SuiteDotGit) TestObjectPack(c *C) {
f := fixtures.Basic().ByTag(".git").One()
fs := f.DotGit()
dir := New(fs)
pack, err := dir.ObjectPack(f.PackfileHash)
c.Assert(err, IsNil)
c.Assert(filepath.Ext(pack.Name()), Equals, ".pack")
}
func (s *SuiteDotGit) TestObjectPackWithKeepDescriptors(c *C) {
f := fixtures.Basic().ByTag(".git").One()
fs := f.DotGit()
dir := NewWithOptions(fs, Options{KeepDescriptors: true})
pack, err := dir.ObjectPack(f.PackfileHash)
c.Assert(err, IsNil)
c.Assert(filepath.Ext(pack.Name()), Equals, ".pack")
// Move to an specific offset
pack.Seek(42, os.SEEK_SET)
pack2, err := dir.ObjectPack(f.PackfileHash)
c.Assert(err, IsNil)
// If the file is the same the offset should be the same
offset, err := pack2.Seek(0, os.SEEK_CUR)
c.Assert(err, IsNil)
c.Assert(offset, Equals, int64(42))
err = dir.Close()
c.Assert(err, IsNil)
pack2, err = dir.ObjectPack(f.PackfileHash)
c.Assert(err, IsNil)
// If the file is opened again its offset should be 0
offset, err = pack2.Seek(0, os.SEEK_CUR)
c.Assert(err, IsNil)
c.Assert(offset, Equals, int64(0))
err = pack2.Close()
c.Assert(err, IsNil)
err = dir.Close()
c.Assert(err, NotNil)
}
func (s *SuiteDotGit) TestObjectPackIdx(c *C) {
f := fixtures.Basic().ByTag(".git").One()
fs := f.DotGit()
dir := New(fs)
idx, err := dir.ObjectPackIdx(f.PackfileHash)
c.Assert(err, IsNil)
c.Assert(filepath.Ext(idx.Name()), Equals, ".idx")
c.Assert(idx.Close(), IsNil)
}
func (s *SuiteDotGit) TestObjectPackNotFound(c *C) {
fs := fixtures.Basic().ByTag(".git").One().DotGit()
dir := New(fs)
pack, err := dir.ObjectPack(plumbing.ZeroHash)
c.Assert(err, Equals, ErrPackfileNotFound)
c.Assert(pack, IsNil)
idx, err := dir.ObjectPackIdx(plumbing.ZeroHash)
c.Assert(err, Equals, ErrPackfileNotFound)
c.Assert(idx, IsNil)
}
func (s *SuiteDotGit) TestNewObject(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
w, err := dir.NewObject()
c.Assert(err, IsNil)
err = w.WriteHeader(plumbing.BlobObject, 14)
c.Assert(err, IsNil)
n, err := w.Write([]byte("this is a test"))
c.Assert(err, IsNil)
c.Assert(n, Equals, 14)
c.Assert(w.Hash().String(), Equals, "a8a940627d132695a9769df883f85992f0ff4a43")
err = w.Close()
c.Assert(err, IsNil)
i, err := fs.Stat("objects/a8/a940627d132695a9769df883f85992f0ff4a43")
c.Assert(err, IsNil)
c.Assert(i.Size(), Equals, int64(34))
}
func (s *SuiteDotGit) TestObjects(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := New(fs)
testObjects(c, fs, dir)
}
func (s *SuiteDotGit) TestObjectsExclusive(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := NewWithOptions(fs, Options{ExclusiveAccess: true})
testObjects(c, fs, dir)
}
func testObjects(c *C, fs billy.Filesystem, dir *DotGit) {
hashes, err := dir.Objects()
c.Assert(err, IsNil)
c.Assert(hashes, HasLen, 187)
c.Assert(hashes[0].String(), Equals, "0097821d427a3c3385898eb13b50dcbc8702b8a3")
c.Assert(hashes[1].String(), Equals, "01d5fa556c33743006de7e76e67a2dfcd994ca04")
c.Assert(hashes[2].String(), Equals, "03db8e1fbe133a480f2867aac478fd866686d69e")
}
func (s *SuiteDotGit) TestObjectsNoFolder(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
hash, err := dir.Objects()
c.Assert(err, IsNil)
c.Assert(hash, HasLen, 0)
}
func (s *SuiteDotGit) TestObject(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := New(fs)
hash := plumbing.NewHash("03db8e1fbe133a480f2867aac478fd866686d69e")
file, err := dir.Object(hash)
c.Assert(err, IsNil)
c.Assert(strings.HasSuffix(
file.Name(), fs.Join("objects", "03", "db8e1fbe133a480f2867aac478fd866686d69e")),
Equals, true,
)
incomingHash := "9d25e0f9bde9f82882b49fe29117b9411cb157b7" //made up hash
incomingDirPath := fs.Join("objects", "incoming-123456")
incomingFilePath := fs.Join(incomingDirPath, incomingHash[0:2], incomingHash[2:40])
fs.MkdirAll(incomingDirPath, os.FileMode(0755))
fs.Create(incomingFilePath)
file, err = dir.Object(plumbing.NewHash(incomingHash))
c.Assert(err, IsNil)
}
func (s *SuiteDotGit) TestObjectStat(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := New(fs)
hash := plumbing.NewHash("03db8e1fbe133a480f2867aac478fd866686d69e")
_, err := dir.ObjectStat(hash)
c.Assert(err, IsNil)
incomingHash := "9d25e0f9bde9f82882b49fe29117b9411cb157b7" //made up hash
incomingDirPath := fs.Join("objects", "incoming-123456")
incomingFilePath := fs.Join(incomingDirPath, incomingHash[0:2], incomingHash[2:40])
fs.MkdirAll(incomingDirPath, os.FileMode(0755))
fs.Create(incomingFilePath)
_, err = dir.ObjectStat(plumbing.NewHash(incomingHash))
c.Assert(err, IsNil)
}
func (s *SuiteDotGit) TestObjectDelete(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := New(fs)
hash := plumbing.NewHash("03db8e1fbe133a480f2867aac478fd866686d69e")
err := dir.ObjectDelete(hash)
c.Assert(err, IsNil)
incomingHash := "9d25e0f9bde9f82882b49fe29117b9411cb157b7" //made up hash
incomingDirPath := fs.Join("objects", "incoming-123456")
incomingSubDirPath := fs.Join(incomingDirPath, incomingHash[0:2])
incomingFilePath := fs.Join(incomingSubDirPath, incomingHash[2:40])
err = fs.MkdirAll(incomingSubDirPath, os.FileMode(0755))
c.Assert(err, IsNil)
f, err := fs.Create(incomingFilePath)
c.Assert(err, IsNil)
err = f.Close()
c.Assert(err, IsNil)
err = dir.ObjectDelete(plumbing.NewHash(incomingHash))
c.Assert(err, IsNil)
}
func (s *SuiteDotGit) TestObjectNotFound(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
dir := New(fs)
hash := plumbing.NewHash("not-found-object")
file, err := dir.Object(hash)
c.Assert(err, NotNil)
c.Assert(file, IsNil)
}
func (s *SuiteDotGit) TestSubmodules(c *C) {
fs := fixtures.ByTag("submodule").One().DotGit()
dir := New(fs)
m, err := dir.Module("basic")
c.Assert(err, IsNil)
c.Assert(strings.HasSuffix(m.Root(), m.Join(".git", "modules", "basic")), Equals, true)
}
func (s *SuiteDotGit) TestPackRefs(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
fs := osfs.New(tmp)
dir := New(fs)
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/foo",
"e8d3ffab552895c19b9fcf7aa264d277cde33881",
), nil)
c.Assert(err, IsNil)
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/bar",
"a8d3ffab552895c19b9fcf7aa264d277cde33881",
), nil)
c.Assert(err, IsNil)
refs, err := dir.Refs()
c.Assert(err, IsNil)
c.Assert(refs, HasLen, 2)
looseCount, err := dir.CountLooseRefs()
c.Assert(err, IsNil)
c.Assert(looseCount, Equals, 2)
err = dir.PackRefs()
c.Assert(err, IsNil)
// Make sure the refs are still there, but no longer loose.
refs, err = dir.Refs()
c.Assert(err, IsNil)
c.Assert(refs, HasLen, 2)
looseCount, err = dir.CountLooseRefs()
c.Assert(err, IsNil)
c.Assert(looseCount, Equals, 0)
ref, err := dir.Ref("refs/heads/foo")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "e8d3ffab552895c19b9fcf7aa264d277cde33881")
ref, err = dir.Ref("refs/heads/bar")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "a8d3ffab552895c19b9fcf7aa264d277cde33881")
// Now update one of them, re-pack, and check again.
err = dir.SetRef(plumbing.NewReferenceFromStrings(
"refs/heads/foo",
"b8d3ffab552895c19b9fcf7aa264d277cde33881",
), nil)
c.Assert(err, IsNil)
looseCount, err = dir.CountLooseRefs()
c.Assert(err, IsNil)
c.Assert(looseCount, Equals, 1)
err = dir.PackRefs()
c.Assert(err, IsNil)
// Make sure the refs are still there, but no longer loose.
refs, err = dir.Refs()
c.Assert(err, IsNil)
c.Assert(refs, HasLen, 2)
looseCount, err = dir.CountLooseRefs()
c.Assert(err, IsNil)
c.Assert(looseCount, Equals, 0)
ref, err = dir.Ref("refs/heads/foo")
c.Assert(err, IsNil)
c.Assert(ref, NotNil)
c.Assert(ref.Hash().String(), Equals, "b8d3ffab552895c19b9fcf7aa264d277cde33881")
}
func (s *SuiteDotGit) TestAlternates(c *C) {
tmp, err := ioutil.TempDir("", "dot-git")
c.Assert(err, IsNil)
defer os.RemoveAll(tmp)
// Create a new billy fs.
fs := osfs.New(tmp)
// Create a new dotgit object and initialize.
dir := New(fs)
err = dir.Initialize()
c.Assert(err, IsNil)
// Create alternates file.
altpath := filepath.Join("objects", "info", "alternates")
f, err := fs.Create(altpath)
c.Assert(err, IsNil)
// Multiple alternates.
var strContent string
if runtime.GOOS == "windows" {
strContent = "C:\\Users\\username\\repo1\\.git\\objects\r\n..\\..\\..\\rep2\\.git\\objects"
} else {
strContent = "/Users/username/rep1//.git/objects\n../../../rep2//.git/objects"
}
content := []byte(strContent)
f.Write(content)
f.Close()
dotgits, err := dir.Alternates()
c.Assert(err, IsNil)
if runtime.GOOS == "windows" {
c.Assert(dotgits[0].fs.Root(), Equals, "C:\\Users\\username\\repo1\\.git")
} else {
c.Assert(dotgits[0].fs.Root(), Equals, "/Users/username/rep1/.git")
}
// For relative path:
// /some/absolute/path/to/dot-git -> /some/absolute/path
pathx := strings.Split(tmp, string(filepath.Separator))
pathx = pathx[:len(pathx)-2]
// Use string.Join() to avoid malformed absolutepath on windows
// C:Users\\User\\... instead of C:\\Users\\appveyor\\... .
resolvedPath := strings.Join(pathx, string(filepath.Separator))
// Append the alternate path to the resolvedPath
expectedPath := filepath.Join(string(filepath.Separator), resolvedPath, "rep2", ".git")
if runtime.GOOS == "windows" {
expectedPath = filepath.Join(resolvedPath, "rep2", ".git")
}
c.Assert(dotgits[1].fs.Root(), Equals, expectedPath)
}
type norwfs struct {
billy.Filesystem
}
func (f *norwfs) Capabilities() billy.Capability {
return billy.Capabilities(f.Filesystem) &^ billy.ReadAndWriteCapability
}
