Ejemplo n.º 1
0
// Decode transform an core.Object into a Blob struct
func (b *Blob) Decode(o core.Object) error {
	b.Hash = o.Hash()
	b.Size = o.Size()
	b.obj = o

	return nil
}
Ejemplo n.º 2
0
func (r *Reader) readOFSDelta(raw core.Object, steps int64) error {
	start := r.r.position
	offset, err := decodeOffset(r.r, steps)
	if err != nil {
		return err
	}

	buf := bytes.NewBuffer(nil)
	if err := r.inflate(buf); err != nil {
		return err
	}

	ref, ok := r.offsets[start+offset]
	if !ok {
		return PackEntryNotFoundErr.n("offset %d", start+offset)
	}

	referenced, _ := r.s.Get(ref)
	d, _ := ioutil.ReadAll(referenced.Reader())
	patched := patchDelta(d, buf.Bytes())
	if patched == nil {
		return PatchingErr.n("hash %q", ref)
	}

	raw.SetType(referenced.Type())
	raw.SetSize(int64(len(patched)))
	raw.Writer().Write(patched)

	return nil
}
Ejemplo n.º 3
0
func (r *Reader) readREFDelta(raw core.Object) error {
	var ref core.Hash
	if _, err := r.r.Read(ref[:]); err != nil {
		return err
	}

	buf := bytes.NewBuffer(nil)
	if err := r.inflate(buf); err != nil {
		return err
	}

	referenced, ok := r.s.Get(ref)
	if !ok {
		return ObjectNotFoundErr.n("%s", ref)
	}

	d, _ := ioutil.ReadAll(referenced.Reader())
	patched := patchDelta(d, buf.Bytes())
	if patched == nil {
		return PatchingErr.n("hash %q", ref)
	}

	raw.SetType(referenced.Type())
	raw.SetSize(int64(len(patched)))
	raw.Writer().Write(patched)

	return nil
}
Ejemplo n.º 4
0
// Decode transform an core.Object into a Blob struct
func (c *Commit) Decode(o core.Object) error {
	c.Hash = o.Hash()
	r := bufio.NewReader(o.Reader())

	var message bool
	for {
		line, err := r.ReadSlice('\n')
		if err != nil && err != io.EOF {
			return err
		}

		line = bytes.TrimSpace(line)
		if !message {
			if len(line) == 0 {
				message = true
				continue
			}

			split := bytes.SplitN(line, []byte{' '}, 2)
			switch string(split[0]) {
			case "tree":
				c.tree = core.NewHash(string(split[1]))
			case "parent":
				c.parents = append(c.parents, core.NewHash(string(split[1])))
			case "author":
				c.Author.Decode(split[1])
			case "committer":
				c.Committer.Decode(split[1])
			}
		} else {
			c.Message += string(line) + "\n"
		}

		if err == io.EOF {
			return nil
		}
	}
}
Ejemplo n.º 5
0
// Decode transform an core.Object into a Tree struct
func (t *Tree) Decode(o core.Object) error {
	t.Hash = o.Hash()
	if o.Size() == 0 {
		return nil
	}

	t.Entries = make(map[string]TreeEntry)

	r := bufio.NewReader(o.Reader())
	for {
		mode, err := r.ReadString(' ')
		if err != nil {
			if err == io.EOF {
				break
			}

			return err
		}

		fm, err := strconv.ParseInt(mode[:len(mode)-1], 8, 32)
		if err != nil && err != io.EOF {
			return err
		}

		name, err := r.ReadString(0)
		if err != nil && err != io.EOF {
			return err
		}

		var hash core.Hash
		_, err = r.Read(hash[:])
		if err != nil && err != io.EOF {
			return err
		}

		baseName := name[:len(name)-1]
		t.Entries[baseName] = TreeEntry{
			Hash: hash,
			Mode: os.FileMode(fm),
			Name: baseName,
		}
	}

	return nil
}
Ejemplo n.º 6
0
func (r *Reader) readObject(raw core.Object) error {
	return r.inflate(raw.Writer())
}