From 009f1069a1248c1e9189a9e4c342f6d017156ec4 Mon Sep 17 00:00:00 2001 From: Miguel Molina Date: Thu, 19 Jul 2018 15:20:10 +0200 Subject: plumbing/format/idxfile: add new Index and MemoryIndex Signed-off-by: Miguel Molina --- plumbing/format/packfile/decoder.go | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) (limited to 'plumbing/format/packfile/decoder.go') diff --git a/plumbing/format/packfile/decoder.go b/plumbing/format/packfile/decoder.go index f706e5d..765401f 100644 --- a/plumbing/format/packfile/decoder.go +++ b/plumbing/format/packfile/decoder.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/storer" ) @@ -63,7 +64,7 @@ type Decoder struct { // hasBuiltIndex indicates if the index is fully built or not. If it is not, // will be built incrementally while decoding. hasBuiltIndex bool - idx *Index + idx idxfile.Index offsetToType map[int64]plumbing.ObjectType decoderType plumbing.ObjectType @@ -117,7 +118,7 @@ func NewDecoderForType(s *Scanner, o storer.EncodedObjectStorer, o: o, deltaBaseCache: cacheObject, - idx: NewIndex(0), + idx: idxfile.NewMemoryIndex(), offsetToType: make(map[int64]plumbing.ObjectType), decoderType: t, }, nil @@ -150,7 +151,8 @@ func (d *Decoder) doDecode() error { } if !d.hasBuiltIndex { - d.idx = NewIndex(int(count)) + // TODO: MemoryIndex is not writable, change to something else + d.idx = idxfile.NewMemoryIndex() } defer func() { d.hasBuiltIndex = true }() @@ -284,12 +286,12 @@ func (d *Decoder) ofsDeltaType(offset int64) (plumbing.ObjectType, error) { } func (d *Decoder) refDeltaType(ref plumbing.Hash) (plumbing.ObjectType, error) { - e, ok := d.idx.LookupHash(ref) - if !ok { + offset, err := d.idx.FindOffset(ref) + if err != nil { return plumbing.InvalidObject, plumbing.ErrObjectNotFound } - return d.ofsDeltaType(int64(e.Offset)) + return d.ofsDeltaType(offset) } func (d *Decoder) decodeByHeader(h *ObjectHeader) (plumbing.EncodedObject, error) { @@ -314,9 +316,14 @@ func (d *Decoder) decodeByHeader(h *ObjectHeader) (plumbing.EncodedObject, error return obj, err } + // TODO: remove this + _ = crc + + /* Add is no longer available if !d.hasBuiltIndex { d.idx.Add(obj.Hash(), uint64(h.Offset), crc) } + */ return obj, nil } @@ -448,8 +455,8 @@ func (d *Decoder) recallByOffset(o int64) (plumbing.EncodedObject, error) { func (d *Decoder) recallByHash(h plumbing.Hash) (plumbing.EncodedObject, error) { if d.s.IsSeekable { - if e, ok := d.idx.LookupHash(h); ok { - return d.DecodeObjectAt(int64(e.Offset)) + if offset, err := d.idx.FindOffset(h); err != nil { + return d.DecodeObjectAt(offset) } } @@ -475,7 +482,7 @@ func (d *Decoder) recallByHashNonSeekable(h plumbing.Hash) (obj plumbing.Encoded // SetIndex sets an index for the packfile. It is recommended to set this. // The index might be read from a file or reused from a previous Decoder usage // (see Index function). -func (d *Decoder) SetIndex(idx *Index) { +func (d *Decoder) SetIndex(idx idxfile.Index) { d.hasBuiltIndex = true d.idx = idx } @@ -484,7 +491,7 @@ func (d *Decoder) SetIndex(idx *Index) { // Index will return it. Otherwise, it will return an index that is built while // decoding. If neither SetIndex was called with a full index or Decode called // for the whole packfile, then the returned index will be incomplete. -func (d *Decoder) Index() *Index { +func (d *Decoder) Index() idxfile.Index { return d.idx } -- cgit