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-rw-r--r--plumbing/format/idxfile/idxfile.go8
-rw-r--r--plumbing/format/idxfile/writer.go11
-rw-r--r--plumbing/format/packfile/decoder.go28
-rw-r--r--plumbing/format/packfile/decoder_test.go72
-rw-r--r--plumbing/format/packfile/packfile_test.go2
5 files changed, 88 insertions, 33 deletions
diff --git a/plumbing/format/idxfile/idxfile.go b/plumbing/format/idxfile/idxfile.go
index d4a9365..71c7630 100644
--- a/plumbing/format/idxfile/idxfile.go
+++ b/plumbing/format/idxfile/idxfile.go
@@ -67,6 +67,10 @@ func (idx *MemoryIndex) findHashIndex(h plumbing.Hash) int {
return -1
}
+ if len(idx.Names) <= k {
+ return -1
+ }
+
data := idx.Names[k]
high := uint64(len(idx.Offset32[k])) >> 2
if high == 0 {
@@ -103,6 +107,10 @@ func (idx *MemoryIndex) Contains(h plumbing.Hash) (bool, error) {
// FindOffset implements the Index interface.
func (idx *MemoryIndex) FindOffset(h plumbing.Hash) (int64, error) {
+ if len(idx.FanoutMapping) <= int(h[0]) {
+ return 0, plumbing.ErrObjectNotFound
+ }
+
k := idx.FanoutMapping[h[0]]
i := idx.findHashIndex(h)
if i < 0 {
diff --git a/plumbing/format/idxfile/writer.go b/plumbing/format/idxfile/writer.go
index efcdcc6..a22cf16 100644
--- a/plumbing/format/idxfile/writer.go
+++ b/plumbing/format/idxfile/writer.go
@@ -25,6 +25,7 @@ type Writer struct {
offset64 uint32
finished bool
index *MemoryIndex
+ added map[plumbing.Hash]struct{}
}
// Index returns a previously created MemoryIndex or creates a new one if
@@ -45,7 +46,15 @@ func (w *Writer) Add(h plumbing.Hash, pos uint64, crc uint32) {
w.m.Lock()
defer w.m.Unlock()
- w.objects = append(w.objects, Entry{h, crc, pos})
+ if w.added == nil {
+ w.added = make(map[plumbing.Hash]struct{})
+ }
+
+ if _, ok := w.added[h]; !ok {
+ w.added[h] = struct{}{}
+ w.objects = append(w.objects, Entry{h, crc, pos})
+ }
+
}
func (w *Writer) Finished() bool {
diff --git a/plumbing/format/packfile/decoder.go b/plumbing/format/packfile/decoder.go
index d6bc0ef..6bb0677 100644
--- a/plumbing/format/packfile/decoder.go
+++ b/plumbing/format/packfile/decoder.go
@@ -122,6 +122,7 @@ func NewDecoderForType(s *Scanner, o storer.EncodedObjectStorer,
deltaBaseCache: cacheObject,
idx: idxfile.NewMemoryIndex(),
+ writer: new(idxfile.Writer),
offsetToType: make(map[int64]plumbing.ObjectType),
offsetToHash: make(map[int64]plumbing.Hash),
decoderType: t,
@@ -152,7 +153,12 @@ func (d *Decoder) Decode() (checksum plumbing.Hash, err error) {
if !d.hasBuiltIndex {
d.writer.OnFooter(checksum)
- d.idx = d.Index()
+
+ idx, err := d.writer.Index()
+ if err != nil {
+ return plumbing.ZeroHash, err
+ }
+ d.SetIndex(idx)
}
return checksum, err
@@ -186,12 +192,8 @@ func (d *Decoder) doDecode() error {
}
if !d.hasBuiltIndex {
- // TODO: MemoryIndex is not writable, change to something else
- d.idx = idxfile.NewMemoryIndex()
- d.writer = new(idxfile.Writer)
d.writer.OnHeader(count)
}
- defer func() { d.hasBuiltIndex = true }()
if d.hasBuiltIndex && !d.s.IsSeekable {
if err := d.fillOffsetsToHashes(); err != nil {
@@ -202,12 +204,18 @@ func (d *Decoder) doDecode() error {
_, isTxStorer := d.o.(storer.Transactioner)
switch {
case d.o == nil:
- return d.decodeObjects(int(count))
+ err = d.decodeObjects(int(count))
case isTxStorer:
- return d.decodeObjectsWithObjectStorerTx(int(count))
+ err = d.decodeObjectsWithObjectStorerTx(int(count))
default:
- return d.decodeObjectsWithObjectStorer(int(count))
+ err = d.decodeObjectsWithObjectStorer(int(count))
+ }
+
+ if err != nil {
+ return err
}
+
+ return nil
}
func (d *Decoder) decodeObjects(count int) error {
@@ -509,8 +517,10 @@ func (d *Decoder) recallByHash(h plumbing.Hash) (plumbing.EncodedObject, error)
func (d *Decoder) recallByHashNonSeekable(h plumbing.Hash) (obj plumbing.EncodedObject, err error) {
if d.tx != nil {
obj, err = d.tx.EncodedObject(plumbing.AnyObject, h)
- } else {
+ } else if d.o != nil {
obj, err = d.o.EncodedObject(plumbing.AnyObject, h)
+ } else {
+ return nil, plumbing.ErrObjectNotFound
}
if err != plumbing.ErrObjectNotFound {
diff --git a/plumbing/format/packfile/decoder_test.go b/plumbing/format/packfile/decoder_test.go
index 4fe9b5e..d4f7145 100644
--- a/plumbing/format/packfile/decoder_test.go
+++ b/plumbing/format/packfile/decoder_test.go
@@ -5,6 +5,7 @@ import (
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/cache"
+ "gopkg.in/src-d/go-git.v4/plumbing/format/idxfile"
"gopkg.in/src-d/go-git.v4/plumbing/format/packfile"
"gopkg.in/src-d/go-git.v4/plumbing/storer"
"gopkg.in/src-d/go-git.v4/storage/filesystem"
@@ -46,7 +47,6 @@ func (s *ReaderSuite) TestDecode(c *C) {
})
}
-/*
func (s *ReaderSuite) TestDecodeByTypeRefDelta(c *C) {
f := fixtures.Basic().ByTag("ref-delta").One()
@@ -101,9 +101,7 @@ func (s *ReaderSuite) TestDecodeByTypeRefDeltaError(c *C) {
})
}
-*/
-/*
func (s *ReaderSuite) TestDecodeByType(c *C) {
ts := []plumbing.ObjectType{
plumbing.CommitObject,
@@ -142,7 +140,6 @@ func (s *ReaderSuite) TestDecodeByType(c *C) {
}
})
}
-*/
func (s *ReaderSuite) TestDecodeByTypeConstructor(c *C) {
f := fixtures.Basic().ByTag("packfile").One()
@@ -184,7 +181,7 @@ func (s *ReaderSuite) TestDecodeMultipleTimes(c *C) {
func (s *ReaderSuite) TestDecodeInMemory(c *C) {
fixtures.Basic().ByTag("packfile").Test(c, func(f *fixtures.Fixture) {
scanner := packfile.NewScanner(f.Packfile())
- d, err := packfile.NewDecoder(scanner, nil)
+ d, err := packfile.NewDecoder(scanner, memory.NewStorage())
c.Assert(err, IsNil)
ch, err := d.Decode()
@@ -284,7 +281,6 @@ var expectedHashes = []string{
"7e59600739c96546163833214c36459e324bad0a",
}
-/*
func (s *ReaderSuite) TestDecodeCRCs(c *C) {
f := fixtures.Basic().ByTag("ofs-delta").One()
@@ -297,8 +293,16 @@ func (s *ReaderSuite) TestDecodeCRCs(c *C) {
c.Assert(err, IsNil)
var sum uint64
- idx := d.Index().ToIdxFile()
- for _, e := range idx.Entries {
+ iter, err := d.Index().Entries()
+ c.Assert(err, IsNil)
+
+ for {
+ e, err := iter.Next()
+ if err == io.EOF {
+ break
+ }
+
+ c.Assert(err, IsNil)
sum += uint64(e.CRC32)
}
@@ -349,12 +353,30 @@ func (s *ReaderSuite) TestIndex(c *C) {
d, err := packfile.NewDecoder(scanner, nil)
c.Assert(err, IsNil)
- c.Assert(d.Index().ToIdxFile().Entries, HasLen, 0)
+ c.Assert(indexEntries(c, d), Equals, 0)
_, err = d.Decode()
c.Assert(err, IsNil)
- c.Assert(len(d.Index().ToIdxFile().Entries), Equals, 31)
+ c.Assert(indexEntries(c, d), Equals, 31)
+}
+
+func indexEntries(c *C, d *packfile.Decoder) int {
+ var count int
+ entries, err := d.Index().Entries()
+ c.Assert(err, IsNil)
+
+ for {
+ _, err := entries.Next()
+ if err == io.EOF {
+ break
+ }
+
+ c.Assert(err, IsNil)
+ count++
+ }
+
+ return count
}
func (s *ReaderSuite) TestSetIndex(c *C) {
@@ -363,18 +385,25 @@ func (s *ReaderSuite) TestSetIndex(c *C) {
d, err := packfile.NewDecoder(scanner, nil)
c.Assert(err, IsNil)
- idx := packfile.NewIndex(1)
+ w := new(idxfile.Writer)
h := plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5")
- idx.Add(h, uint64(42), 0)
+ w.Add(h, uint64(42), 0)
+ w.OnFooter(plumbing.ZeroHash)
+
+ var idx idxfile.Index
+ idx, err = w.Index()
+ c.Assert(err, IsNil)
d.SetIndex(idx)
- idxf := d.Index().ToIdxFile()
- c.Assert(idxf.Entries, HasLen, 1)
- c.Assert(idxf.Entries[0].Offset, Equals, uint64(42))
-}*/
+ idx = d.Index()
+ c.Assert(indexEntries(c, d), Equals, 1)
-func assertObjects(c *C, s storer.EncodedObjectStorer, expects []string) {
+ offset, err := idx.FindOffset(h)
+ c.Assert(err, IsNil)
+ c.Assert(offset, Equals, int64(42))
+}
+func assertObjects(c *C, s storer.EncodedObjectStorer, expects []string) {
i, err := s.IterEncodedObjects(plumbing.AnyObject)
c.Assert(err, IsNil)
@@ -390,13 +419,12 @@ func assertObjects(c *C, s storer.EncodedObjectStorer, expects []string) {
}
}
-/*
-func getIndexFromIdxFile(r io.Reader) *packfile.Index {
- idxf := idxfile.NewIdxfile()
+func getIndexFromIdxFile(r io.Reader) idxfile.Index {
+ idxf := idxfile.NewMemoryIndex()
d := idxfile.NewDecoder(r)
if err := d.Decode(idxf); err != nil {
panic(err)
}
- return packfile.NewIndexFromIdxFile(idxf)
-}*/
+ return idxf
+}
diff --git a/plumbing/format/packfile/packfile_test.go b/plumbing/format/packfile/packfile_test.go
index 0d7a806..a17a483 100644
--- a/plumbing/format/packfile/packfile_test.go
+++ b/plumbing/format/packfile/packfile_test.go
@@ -109,7 +109,7 @@ var expectedEntries = map[plumbing.Hash]int64{
}
func (s *PackfileSuite) TestContent(c *C) {
- storer := memory.NewObjectStorage()
+ storer := memory.NewStorage()
decoder, err := NewDecoder(NewScanner(s.f.Packfile()), storer)
c.Assert(err, IsNil)
generated by cgit (git 2.34.1) at 2024-11-10 17:34:28 +0000