aboutsummaryrefslogtreecommitdiffstats
path: root/storage
diff options
context:
space:
mode:
Diffstat (limited to 'storage')
-rw-r--r--storage/filesystem/dotgit/dotgit.go299
-rw-r--r--storage/filesystem/dotgit/dotgit_test.go114
-rw-r--r--storage/filesystem/module.go3
-rw-r--r--storage/filesystem/object.go51
-rw-r--r--storage/filesystem/object_test.go56
-rw-r--r--storage/filesystem/storage.go38
-rw-r--r--storage/filesystem/storage_test.go27
7 files changed, 540 insertions, 48 deletions
diff --git a/storage/filesystem/dotgit/dotgit.go b/storage/filesystem/dotgit/dotgit.go
index af07eb5..a58c248 100644
--- a/storage/filesystem/dotgit/dotgit.go
+++ b/storage/filesystem/dotgit/dotgit.go
@@ -57,17 +57,48 @@ var (
ErrSymRefTargetNotFound = errors.New("symbolic reference target not found")
)
+// Options holds configuration for the storage.
+type Options struct {
+ // ExclusiveAccess means that the filesystem is not modified externally
+ // while the repo is open.
+ ExclusiveAccess bool
+ // KeepDescriptors makes the file descriptors to be reused but they will
+ // need to be manually closed calling Close().
+ KeepDescriptors bool
+}
+
// The DotGit type represents a local git repository on disk. This
// type is not zero-value-safe, use the New function to initialize it.
type DotGit struct {
- fs billy.Filesystem
+ options Options
+ fs billy.Filesystem
+
+ // incoming object directory information
+ incomingChecked bool
+ incomingDirName string
+
+ objectList []plumbing.Hash
+ objectMap map[plumbing.Hash]struct{}
+ packList []plumbing.Hash
+ packMap map[plumbing.Hash]struct{}
+
+ files map[string]billy.File
}
// New returns a DotGit value ready to be used. The path argument must
// be the absolute path of a git repository directory (e.g.
// "/foo/bar/.git").
func New(fs billy.Filesystem) *DotGit {
- return &DotGit{fs: fs}
+ return NewWithOptions(fs, Options{})
+}
+
+// NewWithOptions sets non default configuration options.
+// See New for complete help.
+func NewWithOptions(fs billy.Filesystem, o Options) *DotGit {
+ return &DotGit{
+ options: o,
+ fs: fs,
+ }
}
// Initialize creates all the folder scaffolding.
@@ -97,6 +128,28 @@ func (d *DotGit) Initialize() error {
return nil
}
+// Close closes all opened files.
+func (d *DotGit) Close() error {
+ var firstError error
+ if d.files != nil {
+ for _, f := range d.files {
+ err := f.Close()
+ if err != nil && firstError == nil {
+ firstError = err
+ continue
+ }
+ }
+
+ d.files = nil
+ }
+
+ if firstError != nil {
+ return firstError
+ }
+
+ return nil
+}
+
// ConfigWriter returns a file pointer for write to the config file
func (d *DotGit) ConfigWriter() (billy.File, error) {
return d.fs.Create(configPath)
@@ -139,11 +192,25 @@ func (d *DotGit) Shallow() (billy.File, error) {
// NewObjectPack return a writer for a new packfile, it saves the packfile to
// disk and also generates and save the index for the given packfile.
func (d *DotGit) NewObjectPack() (*PackWriter, error) {
+ d.cleanPackList()
return newPackWrite(d.fs)
}
// ObjectPacks returns the list of availables packfiles
func (d *DotGit) ObjectPacks() ([]plumbing.Hash, error) {
+ if !d.options.ExclusiveAccess {
+ return d.objectPacks()
+ }
+
+ err := d.genPackList()
+ if err != nil {
+ return nil, err
+ }
+
+ return d.packList, nil
+}
+
+func (d *DotGit) objectPacks() ([]plumbing.Hash, error) {
packDir := d.fs.Join(objectsPath, packPath)
files, err := d.fs.ReadDir(packDir)
if err != nil {
@@ -177,7 +244,22 @@ func (d *DotGit) objectPackPath(hash plumbing.Hash, extension string) string {
}
func (d *DotGit) objectPackOpen(hash plumbing.Hash, extension string) (billy.File, error) {
- pack, err := d.fs.Open(d.objectPackPath(hash, extension))
+ if d.files == nil {
+ d.files = make(map[string]billy.File)
+ }
+
+ err := d.hasPack(hash)
+ if err != nil {
+ return nil, err
+ }
+
+ path := d.objectPackPath(hash, extension)
+ f, ok := d.files[path]
+ if ok {
+ return f, nil
+ }
+
+ pack, err := d.fs.Open(path)
if err != nil {
if os.IsNotExist(err) {
return nil, ErrPackfileNotFound
@@ -186,20 +268,36 @@ func (d *DotGit) objectPackOpen(hash plumbing.Hash, extension string) (billy.Fil
return nil, err
}
+ if d.options.KeepDescriptors && extension == "pack" {
+ d.files[path] = pack
+ }
+
return pack, nil
}
// ObjectPack returns a fs.File of the given packfile
func (d *DotGit) ObjectPack(hash plumbing.Hash) (billy.File, error) {
+ err := d.hasPack(hash)
+ if err != nil {
+ return nil, err
+ }
+
return d.objectPackOpen(hash, `pack`)
}
// ObjectPackIdx returns a fs.File of the index file for a given packfile
func (d *DotGit) ObjectPackIdx(hash plumbing.Hash) (billy.File, error) {
+ err := d.hasPack(hash)
+ if err != nil {
+ return nil, err
+ }
+
return d.objectPackOpen(hash, `idx`)
}
func (d *DotGit) DeleteOldObjectPackAndIndex(hash plumbing.Hash, t time.Time) error {
+ d.cleanPackList()
+
path := d.objectPackPath(hash, `pack`)
if !t.IsZero() {
fi, err := d.fs.Stat(path)
@@ -220,12 +318,23 @@ func (d *DotGit) DeleteOldObjectPackAndIndex(hash plumbing.Hash, t time.Time) er
// NewObject return a writer for a new object file.
func (d *DotGit) NewObject() (*ObjectWriter, error) {
+ d.cleanObjectList()
+
return newObjectWriter(d.fs)
}
// Objects returns a slice with the hashes of objects found under the
// .git/objects/ directory.
func (d *DotGit) Objects() ([]plumbing.Hash, error) {
+ if d.options.ExclusiveAccess {
+ err := d.genObjectList()
+ if err != nil {
+ return nil, err
+ }
+
+ return d.objectList, nil
+ }
+
var objects []plumbing.Hash
err := d.ForEachObjectHash(func(hash plumbing.Hash) error {
objects = append(objects, hash)
@@ -237,9 +346,29 @@ func (d *DotGit) Objects() ([]plumbing.Hash, error) {
return objects, nil
}
-// Objects returns a slice with the hashes of objects found under the
-// .git/objects/ directory.
+// ForEachObjectHash iterates over the hashes of objects found under the
+// .git/objects/ directory and executes the provided function.
func (d *DotGit) ForEachObjectHash(fun func(plumbing.Hash) error) error {
+ if !d.options.ExclusiveAccess {
+ return d.forEachObjectHash(fun)
+ }
+
+ err := d.genObjectList()
+ if err != nil {
+ return err
+ }
+
+ for _, h := range d.objectList {
+ err := fun(h)
+ if err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+func (d *DotGit) forEachObjectHash(fun func(plumbing.Hash) error) error {
files, err := d.fs.ReadDir(objectsPath)
if err != nil {
if os.IsNotExist(err) {
@@ -274,24 +403,178 @@ func (d *DotGit) ForEachObjectHash(fun func(plumbing.Hash) error) error {
return nil
}
+func (d *DotGit) cleanObjectList() {
+ d.objectMap = nil
+ d.objectList = nil
+}
+
+func (d *DotGit) genObjectList() error {
+ if d.objectMap != nil {
+ return nil
+ }
+
+ d.objectMap = make(map[plumbing.Hash]struct{})
+ return d.forEachObjectHash(func(h plumbing.Hash) error {
+ d.objectList = append(d.objectList, h)
+ d.objectMap[h] = struct{}{}
+
+ return nil
+ })
+}
+
+func (d *DotGit) hasObject(h plumbing.Hash) error {
+ if !d.options.ExclusiveAccess {
+ return nil
+ }
+
+ err := d.genObjectList()
+ if err != nil {
+ return err
+ }
+
+ _, ok := d.objectMap[h]
+ if !ok {
+ return plumbing.ErrObjectNotFound
+ }
+
+ return nil
+}
+
+func (d *DotGit) cleanPackList() {
+ d.packMap = nil
+ d.packList = nil
+}
+
+func (d *DotGit) genPackList() error {
+ if d.packMap != nil {
+ return nil
+ }
+
+ op, err := d.objectPacks()
+ if err != nil {
+ return err
+ }
+
+ d.packMap = make(map[plumbing.Hash]struct{})
+ d.packList = nil
+
+ for _, h := range op {
+ d.packList = append(d.packList, h)
+ d.packMap[h] = struct{}{}
+ }
+
+ return nil
+}
+
+func (d *DotGit) hasPack(h plumbing.Hash) error {
+ if !d.options.ExclusiveAccess {
+ return nil
+ }
+
+ err := d.genPackList()
+ if err != nil {
+ return err
+ }
+
+ _, ok := d.packMap[h]
+ if !ok {
+ return ErrPackfileNotFound
+ }
+
+ return nil
+}
+
func (d *DotGit) objectPath(h plumbing.Hash) string {
hash := h.String()
return d.fs.Join(objectsPath, hash[0:2], hash[2:40])
}
+// incomingObjectPath is intended to add support for a git pre-receive hook
+// to be written it adds support for go-git to find objects in an "incoming"
+// directory, so that the library can be used to write a pre-receive hook
+// that deals with the incoming objects.
+//
+// More on git hooks found here : https://git-scm.com/docs/githooks
+// More on 'quarantine'/incoming directory here:
+// https://git-scm.com/docs/git-receive-pack
+func (d *DotGit) incomingObjectPath(h plumbing.Hash) string {
+ hString := h.String()
+
+ if d.incomingDirName == "" {
+ return d.fs.Join(objectsPath, hString[0:2], hString[2:40])
+ }
+
+ return d.fs.Join(objectsPath, d.incomingDirName, hString[0:2], hString[2:40])
+}
+
+// hasIncomingObjects searches for an incoming directory and keeps its name
+// so it doesn't have to be found each time an object is accessed.
+func (d *DotGit) hasIncomingObjects() bool {
+ if !d.incomingChecked {
+ directoryContents, err := d.fs.ReadDir(objectsPath)
+ if err == nil {
+ for _, file := range directoryContents {
+ if strings.HasPrefix(file.Name(), "incoming-") && file.IsDir() {
+ d.incomingDirName = file.Name()
+ }
+ }
+ }
+
+ d.incomingChecked = true
+ }
+
+ return d.incomingDirName != ""
+}
+
// Object returns a fs.File pointing the object file, if exists
func (d *DotGit) Object(h plumbing.Hash) (billy.File, error) {
- return d.fs.Open(d.objectPath(h))
+ err := d.hasObject(h)
+ if err != nil {
+ return nil, err
+ }
+
+ obj1, err1 := d.fs.Open(d.objectPath(h))
+ if os.IsNotExist(err1) && d.hasIncomingObjects() {
+ obj2, err2 := d.fs.Open(d.incomingObjectPath(h))
+ if err2 != nil {
+ return obj1, err1
+ }
+ return obj2, err2
+ }
+ return obj1, err1
}
// ObjectStat returns a os.FileInfo pointing the object file, if exists
func (d *DotGit) ObjectStat(h plumbing.Hash) (os.FileInfo, error) {
- return d.fs.Stat(d.objectPath(h))
+ err := d.hasObject(h)
+ if err != nil {
+ return nil, err
+ }
+
+ obj1, err1 := d.fs.Stat(d.objectPath(h))
+ if os.IsNotExist(err1) && d.hasIncomingObjects() {
+ obj2, err2 := d.fs.Stat(d.incomingObjectPath(h))
+ if err2 != nil {
+ return obj1, err1
+ }
+ return obj2, err2
+ }
+ return obj1, err1
}
// ObjectDelete removes the object file, if exists
func (d *DotGit) ObjectDelete(h plumbing.Hash) error {
- return d.fs.Remove(d.objectPath(h))
+ d.cleanObjectList()
+
+ err1 := d.fs.Remove(d.objectPath(h))
+ if os.IsNotExist(err1) && d.hasIncomingObjects() {
+ err2 := d.fs.Remove(d.incomingObjectPath(h))
+ if err2 != nil {
+ return err1
+ }
+ return err2
+ }
+ return err1
}
func (d *DotGit) readReferenceFrom(rd io.Reader, name string) (ref *plumbing.Reference, err error) {
diff --git a/storage/filesystem/dotgit/dotgit_test.go b/storage/filesystem/dotgit/dotgit_test.go
index 7733eef..308c6b7 100644
--- a/storage/filesystem/dotgit/dotgit_test.go
+++ b/storage/filesystem/dotgit/dotgit_test.go
@@ -9,6 +9,7 @@ import (
"strings"
"testing"
+ "gopkg.in/src-d/go-billy.v4"
"gopkg.in/src-d/go-git.v4/plumbing"
. "gopkg.in/check.v1"
@@ -424,6 +425,18 @@ func (s *SuiteDotGit) TestObjectPacks(c *C) {
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)
@@ -452,6 +465,45 @@ func (s *SuiteDotGit) TestObjectPack(c *C) {
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()
@@ -506,6 +558,17 @@ 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)
@@ -537,6 +600,57 @@ func (s *SuiteDotGit) TestObject(c *C) {
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) {
diff --git a/storage/filesystem/module.go b/storage/filesystem/module.go
index 7c8c8d8..9272206 100644
--- a/storage/filesystem/module.go
+++ b/storage/filesystem/module.go
@@ -1,6 +1,7 @@
package filesystem
import (
+ "gopkg.in/src-d/go-git.v4/plumbing/cache"
"gopkg.in/src-d/go-git.v4/storage"
"gopkg.in/src-d/go-git.v4/storage/filesystem/dotgit"
)
@@ -15,5 +16,5 @@ func (s *ModuleStorage) Module(name string) (storage.Storer, error) {
return nil, err
}
- return NewStorage(fs)
+ return NewStorage(fs, cache.NewObjectLRUDefault()), nil
}
diff --git a/storage/filesystem/object.go b/storage/filesystem/object.go
index 6958e32..9eb085f 100644
--- a/storage/filesystem/object.go
+++ b/storage/filesystem/object.go
@@ -18,6 +18,8 @@ import (
)
type ObjectStorage struct {
+ options Options
+
// deltaBaseCache is an object cache uses to cache delta's bases when
deltaBaseCache cache.Object
@@ -25,14 +27,18 @@ type ObjectStorage struct {
index map[plumbing.Hash]idxfile.Index
}
-// NewObjectStorage creates a new ObjectStorage with the given .git directory.
-func NewObjectStorage(dir *dotgit.DotGit) (ObjectStorage, error) {
- s := ObjectStorage{
- deltaBaseCache: cache.NewObjectLRUDefault(),
+// NewObjectStorage creates a new ObjectStorage with the given .git directory and cache.
+func NewObjectStorage(dir *dotgit.DotGit, cache cache.Object) *ObjectStorage {
+ return NewObjectStorageWithOptions(dir, cache, Options{})
+}
+
+// NewObjectStorageWithOptions creates a new ObjectStorage with the given .git directory, cache and extra options
+func NewObjectStorageWithOptions(dir *dotgit.DotGit, cache cache.Object, ops Options) *ObjectStorage {
+ return &ObjectStorage{
+ options: ops,
+ deltaBaseCache: cache,
dir: dir,
}
-
- return s, nil
}
func (s *ObjectStorage) requireIndex() error {
@@ -62,6 +68,7 @@ func (s *ObjectStorage) loadIdxFile(h plumbing.Hash) (err error) {
}
defer ioutil.CheckClose(f, &err)
+
idxf := idxfile.NewMemoryIndex()
d := idxfile.NewDecoder(f)
if err = d.Decode(idxf); err != nil {
@@ -169,10 +176,7 @@ func (s *ObjectStorage) EncodedObject(t plumbing.ObjectType, h plumbing.Hash) (p
// Create a new object storage with the DotGit(s) and check for the
// required hash object. Skip when not found.
for _, dg := range dotgits {
- o, oe := NewObjectStorage(dg)
- if oe != nil {
- continue
- }
+ o := NewObjectStorage(dg, s.deltaBaseCache)
enobj, enerr := o.EncodedObject(t, h)
if enerr != nil {
continue
@@ -268,7 +272,9 @@ func (s *ObjectStorage) getFromPackfile(h plumbing.Hash, canBeDelta bool) (
return nil, err
}
- defer ioutil.CheckClose(f, &err)
+ if !s.options.KeepDescriptors {
+ defer ioutil.CheckClose(f, &err)
+ }
idx := s.index[pack]
if canBeDelta {
@@ -295,7 +301,14 @@ func (s *ObjectStorage) decodeObjectAt(
return nil, err
}
- return packfile.NewPackfile(idx, s.dir.Fs(), f).GetByOffset(offset)
+ var p *packfile.Packfile
+ if s.deltaBaseCache != nil {
+ p = packfile.NewPackfileWithCache(idx, s.dir.Fs(), f, s.deltaBaseCache)
+ } else {
+ p = packfile.NewPackfile(idx, s.dir.Fs(), f)
+ }
+
+ return p.GetByOffset(offset)
}
func (s *ObjectStorage) decodeDeltaObjectAt(
@@ -404,6 +417,11 @@ func (s *ObjectStorage) buildPackfileIters(t plumbing.ObjectType, seen map[plumb
}, nil
}
+// Close closes all opened files.
+func (s *ObjectStorage) Close() error {
+ return s.dir.Close()
+}
+
type lazyPackfilesIter struct {
hashes []plumbing.Hash
open func(h plumbing.Hash) (storer.EncodedObjectIter, error)
@@ -486,7 +504,14 @@ func newPackfileIter(
index idxfile.Index,
cache cache.Object,
) (storer.EncodedObjectIter, error) {
- iter, err := packfile.NewPackfile(index, fs, f).GetByType(t)
+ var p *packfile.Packfile
+ if cache != nil {
+ p = packfile.NewPackfileWithCache(index, fs, f, cache)
+ } else {
+ p = packfile.NewPackfile(index, fs, f)
+ }
+
+ iter, err := p.GetByType(t)
if err != nil {
return nil, err
}
diff --git a/storage/filesystem/object_test.go b/storage/filesystem/object_test.go
index b1408b7..bd4a94b 100644
--- a/storage/filesystem/object_test.go
+++ b/storage/filesystem/object_test.go
@@ -2,9 +2,11 @@ package filesystem
import (
"io/ioutil"
+ "os"
"testing"
"gopkg.in/src-d/go-git.v4/plumbing"
+ "gopkg.in/src-d/go-git.v4/plumbing/cache"
"gopkg.in/src-d/go-git.v4/storage/filesystem/dotgit"
. "gopkg.in/check.v1"
@@ -26,8 +28,7 @@ var _ = Suite(&FsSuite{})
func (s *FsSuite) TestGetFromObjectFile(c *C) {
fs := fixtures.ByTag(".git").ByTag("unpacked").One().DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
- c.Assert(err, IsNil)
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
expected := plumbing.NewHash("f3dfe29d268303fc6e1bbce268605fc99573406e")
obj, err := o.EncodedObject(plumbing.AnyObject, expected)
@@ -38,20 +39,53 @@ func (s *FsSuite) TestGetFromObjectFile(c *C) {
func (s *FsSuite) TestGetFromPackfile(c *C) {
fixtures.Basic().ByTag(".git").Test(c, func(f *fixtures.Fixture) {
fs := f.DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
+
+ expected := plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5")
+ obj, err := o.EncodedObject(plumbing.AnyObject, expected)
c.Assert(err, IsNil)
+ c.Assert(obj.Hash(), Equals, expected)
+ })
+}
+
+func (s *FsSuite) TestGetFromPackfileKeepDescriptors(c *C) {
+ fixtures.Basic().ByTag(".git").Test(c, func(f *fixtures.Fixture) {
+ fs := f.DotGit()
+ dg := dotgit.NewWithOptions(fs, dotgit.Options{KeepDescriptors: true})
+ o := NewObjectStorageWithOptions(dg, cache.NewObjectLRUDefault(), Options{KeepDescriptors: true})
expected := plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5")
obj, err := o.EncodedObject(plumbing.AnyObject, expected)
c.Assert(err, IsNil)
c.Assert(obj.Hash(), Equals, expected)
+
+ packfiles, err := dg.ObjectPacks()
+ c.Assert(err, IsNil)
+
+ pack1, err := dg.ObjectPack(packfiles[0])
+ c.Assert(err, IsNil)
+
+ pack1.Seek(42, os.SEEK_SET)
+
+ err = o.Close()
+ c.Assert(err, IsNil)
+
+ pack2, err := dg.ObjectPack(packfiles[0])
+ c.Assert(err, IsNil)
+
+ offset, err := pack2.Seek(0, os.SEEK_CUR)
+ c.Assert(err, IsNil)
+ c.Assert(offset, Equals, int64(0))
+
+ err = o.Close()
+ c.Assert(err, IsNil)
+
})
}
func (s *FsSuite) TestGetFromPackfileMultiplePackfiles(c *C) {
fs := fixtures.ByTag(".git").ByTag("multi-packfile").One().DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
- c.Assert(err, IsNil)
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
expected := plumbing.NewHash("8d45a34641d73851e01d3754320b33bb5be3c4d3")
obj, err := o.getFromPackfile(expected, false)
@@ -67,8 +101,7 @@ func (s *FsSuite) TestGetFromPackfileMultiplePackfiles(c *C) {
func (s *FsSuite) TestIter(c *C) {
fixtures.ByTag(".git").ByTag("packfile").Test(c, func(f *fixtures.Fixture) {
fs := f.DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
- c.Assert(err, IsNil)
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
iter, err := o.IterEncodedObjects(plumbing.AnyObject)
c.Assert(err, IsNil)
@@ -88,8 +121,7 @@ func (s *FsSuite) TestIterWithType(c *C) {
fixtures.ByTag(".git").Test(c, func(f *fixtures.Fixture) {
for _, t := range objectTypes {
fs := f.DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
- c.Assert(err, IsNil)
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
iter, err := o.IterEncodedObjects(t)
c.Assert(err, IsNil)
@@ -271,11 +303,7 @@ func BenchmarkGetObjectFromPackfile(b *testing.B) {
for _, f := range fixtures.Basic() {
b.Run(f.URL, func(b *testing.B) {
fs := f.DotGit()
- o, err := NewObjectStorage(dotgit.New(fs))
- if err != nil {
- b.Fatal(err)
- }
-
+ o := NewObjectStorage(dotgit.New(fs), cache.NewObjectLRUDefault())
for i := 0; i < b.N; i++ {
expected := plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5")
obj, err := o.EncodedObject(plumbing.AnyObject, expected)
diff --git a/storage/filesystem/storage.go b/storage/filesystem/storage.go
index 622bb4a..14a772a 100644
--- a/storage/filesystem/storage.go
+++ b/storage/filesystem/storage.go
@@ -2,6 +2,7 @@
package filesystem
import (
+ "gopkg.in/src-d/go-git.v4/plumbing/cache"
"gopkg.in/src-d/go-git.v4/storage/filesystem/dotgit"
"gopkg.in/src-d/go-billy.v4"
@@ -22,25 +23,45 @@ type Storage struct {
ModuleStorage
}
-// NewStorage returns a new Storage backed by a given `fs.Filesystem`
-func NewStorage(fs billy.Filesystem) (*Storage, error) {
- dir := dotgit.New(fs)
- o, err := NewObjectStorage(dir)
- if err != nil {
- return nil, err
+// Options holds configuration for the storage.
+type Options struct {
+ // ExclusiveAccess means that the filesystem is not modified externally
+ // while the repo is open.
+ ExclusiveAccess bool
+ // KeepDescriptors makes the file descriptors to be reused but they will
+ // need to be manually closed calling Close().
+ KeepDescriptors bool
+}
+
+// NewStorage returns a new Storage backed by a given `fs.Filesystem` and cache.
+func NewStorage(fs billy.Filesystem, cache cache.Object) *Storage {
+ return NewStorageWithOptions(fs, cache, Options{})
+}
+
+// NewStorageWithOptions returns a new Storage with extra options,
+// backed by a given `fs.Filesystem` and cache.
+func NewStorageWithOptions(fs billy.Filesystem, cache cache.Object, ops Options) *Storage {
+ dirOps := dotgit.Options{
+ ExclusiveAccess: ops.ExclusiveAccess,
+ KeepDescriptors: ops.KeepDescriptors,
}
+ dir := dotgit.NewWithOptions(fs, dirOps)
return &Storage{
fs: fs,
dir: dir,
- ObjectStorage: o,
+ ObjectStorage: ObjectStorage{
+ options: ops,
+ deltaBaseCache: cache,
+ dir: dir,
+ },
ReferenceStorage: ReferenceStorage{dir: dir},
IndexStorage: IndexStorage{dir: dir},
ShallowStorage: ShallowStorage{dir: dir},
ConfigStorage: ConfigStorage{dir: dir},
ModuleStorage: ModuleStorage{dir: dir},
- }, nil
+ }
}
// Filesystem returns the underlying filesystem
@@ -48,6 +69,7 @@ func (s *Storage) Filesystem() billy.Filesystem {
return s.fs
}
+// Init initializes .git directory
func (s *Storage) Init() error {
return s.dir.Initialize()
}
diff --git a/storage/filesystem/storage_test.go b/storage/filesystem/storage_test.go
index 4d9ba6f..6fa0d90 100644
--- a/storage/filesystem/storage_test.go
+++ b/storage/filesystem/storage_test.go
@@ -4,6 +4,7 @@ import (
"io/ioutil"
"testing"
+ "gopkg.in/src-d/go-git.v4/plumbing/cache"
"gopkg.in/src-d/go-git.v4/plumbing/storer"
"gopkg.in/src-d/go-git.v4/storage/test"
@@ -23,9 +24,12 @@ var _ = Suite(&StorageSuite{})
func (s *StorageSuite) SetUpTest(c *C) {
s.dir = c.MkDir()
- storage, err := NewStorage(osfs.New(s.dir))
- c.Assert(err, IsNil)
+ storage := NewStorage(osfs.New(s.dir), cache.NewObjectLRUDefault())
+
+ setUpTest(s, c, storage)
+}
+func setUpTest(s *StorageSuite, c *C, storage *Storage) {
// ensure that right interfaces are implemented
var _ storer.EncodedObjectStorer = storage
var _ storer.IndexStorer = storage
@@ -40,8 +44,7 @@ func (s *StorageSuite) SetUpTest(c *C) {
func (s *StorageSuite) TestFilesystem(c *C) {
fs := memfs.New()
- storage, err := NewStorage(fs)
- c.Assert(err, IsNil)
+ storage := NewStorage(fs, cache.NewObjectLRUDefault())
c.Assert(storage.Filesystem(), Equals, fs)
}
@@ -51,3 +54,19 @@ func (s *StorageSuite) TestNewStorageShouldNotAddAnyContentsToDir(c *C) {
c.Assert(err, IsNil)
c.Assert(fis, HasLen, 0)
}
+
+type StorageExclusiveSuite struct {
+ StorageSuite
+}
+
+var _ = Suite(&StorageExclusiveSuite{})
+
+func (s *StorageExclusiveSuite) SetUpTest(c *C) {
+ s.dir = c.MkDir()
+ storage := NewStorageWithOptions(
+ osfs.New(s.dir),
+ cache.NewObjectLRUDefault(),
+ Options{ExclusiveAccess: true})
+
+ setUpTest(&s.StorageSuite, c, storage)
+}
generated by cgit (git 2.34.1) at 2024-10-11 05:25:56 +0000