package packfile_test
import (
"io"
"math"
"github.com/go-git/go-billy/v5/osfs"
fixtures "github.com/go-git/go-git-fixtures/v4"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/format/idxfile"
"github.com/go-git/go-git/v5/plumbing/format/packfile"
"github.com/go-git/go-git/v5/plumbing/storer"
. "gopkg.in/check.v1"
)
type PackfileSuite struct {
fixtures.Suite
p *packfile.Packfile
idx *idxfile.MemoryIndex
f *fixtures.Fixture
}
var _ = Suite(&PackfileSuite{})
func (s *PackfileSuite) TestGet(c *C) {
for h := range expectedEntries {
obj, err := s.p.Get(h)
c.Assert(err, IsNil)
c.Assert(obj, Not(IsNil))
c.Assert(obj.Hash(), Equals, h)
}
_, err := s.p.Get(plumbing.ZeroHash)
c.Assert(err, Equals, plumbing.ErrObjectNotFound)
}
func (s *PackfileSuite) TestGetByOffset(c *C) {
for h, o := range expectedEntries {
obj, err := s.p.GetByOffset(o)
c.Assert(err, IsNil)
c.Assert(obj, Not(IsNil))
c.Assert(obj.Hash(), Equals, h)
}
_, err := s.p.GetByOffset(math.MaxInt64)
c.Assert(err, Equals, plumbing.ErrObjectNotFound)
}
func (s *PackfileSuite) TestID(c *C) {
id, err := s.p.ID()
c.Assert(err, IsNil)
c.Assert(id.String(), Equals, s.f.PackfileHash)
}
func (s *PackfileSuite) TestGetAll(c *C) {
iter, err := s.p.GetAll()
c.Assert(err, IsNil)
var objects int
for {
o, err := iter.Next()
if err == io.EOF {
break
}
c.Assert(err, IsNil)
objects++
_, ok := expectedEntries[o.Hash()]
c.Assert(ok, Equals, true)
}
c.Assert(objects, Equals, len(expectedEntries))
}
var expectedEntries = map[plumbing.Hash]int64{
plumbing.NewHash("1669dce138d9b841a518c64b10914d88f5e488ea"): 615,
plumbing.NewHash("32858aad3c383ed1ff0a0f9bdf231d54a00c9e88"): 1524,
plumbing.NewHash("35e85108805c84807bc66a02d91535e1e24b38b9"): 1063,
plumbing.NewHash("49c6bb89b17060d7b4deacb7b338fcc6ea2352a9"): 78882,
plumbing.NewHash("4d081c50e250fa32ea8b1313cf8bb7c2ad7627fd"): 84688,
plumbing.NewHash("586af567d0bb5e771e49bdd9434f5e0fb76d25fa"): 84559,
plumbing.NewHash("5a877e6a906a2743ad6e45d99c1793642aaf8eda"): 84479,
plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5"): 186,
plumbing.NewHash("7e59600739c96546163833214c36459e324bad0a"): 84653,
plumbing.NewHash("880cd14280f4b9b6ed3986d6671f907d7cc2a198"): 78050,
plumbing.NewHash("8dcef98b1d52143e1e2dbc458ffe38f925786bf2"): 84741,
plumbing.NewHash("918c48b83bd081e863dbe1b80f8998f058cd8294"): 286,
plumbing.NewHash("9a48f23120e880dfbe41f7c9b7b708e9ee62a492"): 80998,
plumbing.NewHash("9dea2395f5403188298c1dabe8bdafe562c491e3"): 84032,
plumbing.NewHash("a39771a7651f97faf5c72e08224d857fc35133db"): 84430,
plumbing.NewHash("a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69"): 838,
plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"): 84375,
plumbing.NewHash("aa9b383c260e1d05fbbf6b30a02914555e20c725"): 84760,
plumbing.NewHash("af2d6a6954d532f8ffb47615169c8fdf9d383a1a"): 449,
plumbing.NewHash("b029517f6300c2da0f4b651b8642506cd6aaf45d"): 1392,
plumbing.NewHash("b8e471f58bcbca63b07bda20e428190409c2db47"): 1230,
plumbing.NewHash("c192bd6a24ea1ab01d78686e417c8bdc7c3d197f"): 1713,
plumbing.NewHash("c2d30fa8ef288618f65f6eed6e168e0d514886f4"): 84725,
plumbing.NewHash("c8f1d8c61f9da76f4cb49fd86322b6e685dba956"): 80725,
plumbing.NewHash("cf4aa3b38974fb7d81f367c0830f7d78d65ab86b"): 84608,
plumbing.NewHash("d3ff53e0564a9f87d8e84b6e28e5060e517008aa"): 1685,
plumbing.NewHash("d5c0f4ab811897cadf03aec358ae60d21f91c50d"): 2351,
plumbing.NewHash("dbd3641b371024f44d0e469a9c8f5457b0660de1"): 84115,
plumbing.NewHash("e8d3ffab552895c19b9fcf7aa264d277cde33881"): 12,
plumbing.NewHash("eba74343e2f15d62adedfd8c883ee0262b5c8021"): 84708,
plumbing.NewHash("fb72698cab7617ac416264415f13224dfd7a165e"): 84671,
}
func (s *PackfileSuite) SetUpTest(c *C) {
s.f = fixtures.Basic().One()
fs := osfs.New("")
f, err := fs.Open(s.f.Packfile().Name())
c.Assert(err, IsNil)
s.idx = idxfile.NewMemoryIndex()
c.Assert(idxfile.NewDecoder(s.f.Idx()).Decode(s.idx), IsNil)
s.p = packfile.NewPackfile(s.idx, fs, f)
}
func (s *PackfileSuite) TearDownTest(c *C) {
c.Assert(s.p.Close(), IsNil)
}
func (s *PackfileSuite) TestDecode(c *C) {
fixtures.Basic().ByTag("packfile").Test(c, func(f *fixtures.Fixture) {
index := getIndexFromIdxFile(f.Idx())
fs := osfs.New("")
pf, err := fs.Open(f.Packfile().Name())
c.Assert(err, IsNil)
p := packfile.NewPackfile(index, fs, pf)
defer p.Close()
for _, h := range expectedHashes {
obj, err := p.Get(plumbing.NewHash(h))
c.Assert(err, IsNil)
c.Assert(obj.Hash().String(), Equals, h)
}
})
}
func (s *PackfileSuite) TestDecodeByTypeRefDelta(c *C) {
f := fixtures.Basic().ByTag("ref-delta").One()
index := getIndexFromIdxFile(f.Idx())
fs := osfs.New("")
pf, err := fs.Open(f.Packfile().Name())
c.Assert(err, IsNil)
packfile := packfile.NewPackfile(index, fs, pf)
defer packfile.Close()
iter, err := packfile.GetByType(plumbing.CommitObject)
c.Assert(err, IsNil)
var count int
for {
obj, err := iter.Next()
if err == io.EOF {
break
}
count++
c.Assert(err, IsNil)
c.Assert(obj.Type(), Equals, plumbing.CommitObject)
}
c.Assert(count > 0, Equals, true)
}
func (s *PackfileSuite) TestDecodeByType(c *C) {
ts := []plumbing.ObjectType{
plumbing.CommitObject,
plumbing.TagObject,
plumbing.TreeObject,
plumbing.BlobObject,
}
fixtures.Basic().ByTag("packfile").Test(c, func(f *fixtures.Fixture) {
for _, t := range ts {
index := getIndexFromIdxFile(f.Idx())
fs := osfs.New("")
pf, err := fs.Open(f.Packfile().Name())
c.Assert(err, IsNil)
packfile := packfile.NewPackfile(index, fs, pf)
defer packfile.Close()
iter, err := packfile.GetByType(t)
c.Assert(err, IsNil)
c.Assert(iter.ForEach(func(obj plumbing.EncodedObject) error {
c.Assert(obj.Type(), Equals, t)
return nil
}), IsNil)
}
})
}
func (s *PackfileSuite) TestDecodeByTypeConstructor(c *C) {
f := fixtures.Basic().ByTag("packfile").One()
index := getIndexFromIdxFile(f.Idx())
fs := osfs.New("")
pf, err := fs.Open(f.Packfile().Name())
c.Assert(err, IsNil)
packfile := packfile.NewPackfile(index, fs, pf)
defer packfile.Close()
_, err = packfile.GetByType(plumbing.OFSDeltaObject)
c.Assert(err, Equals, plumbing.ErrInvalidType)
_, err = packfile.GetByType(plumbing.REFDeltaObject)
c.Assert(err, Equals, plumbing.ErrInvalidType)
_, err = packfile.GetByType(plumbing.InvalidObject)
c.Assert(err, Equals, plumbing.ErrInvalidType)
}
var expectedHashes = []string{
"918c48b83bd081e863dbe1b80f8998f058cd8294",
"af2d6a6954d532f8ffb47615169c8fdf9d383a1a",
"1669dce138d9b841a518c64b10914d88f5e488ea",
"a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69",
"b8e471f58bcbca63b07bda20e428190409c2db47",
"35e85108805c84807bc66a02d91535e1e24b38b9",
"b029517f6300c2da0f4b651b8642506cd6aaf45d",
"32858aad3c383ed1ff0a0f9bdf231d54a00c9e88",
"d3ff53e0564a9f87d8e84b6e28e5060e517008aa",
"c192bd6a24ea1ab01d78686e417c8bdc7c3d197f",
"d5c0f4ab811897cadf03aec358ae60d21f91c50d",
"49c6bb89b17060d7b4deacb7b338fcc6ea2352a9",
"cf4aa3b38974fb7d81f367c0830f7d78d65ab86b",
"9dea2395f5403188298c1dabe8bdafe562c491e3",
"586af567d0bb5e771e49bdd9434f5e0fb76d25fa",
"9a48f23120e880dfbe41f7c9b7b708e9ee62a492",
"5a877e6a906a2743ad6e45d99c1793642aaf8eda",
"c8f1d8c61f9da76f4cb49fd86322b6e685dba956",
"a8d315b2b1c615d43042c3a62402b8a54288cf5c",
"a39771a7651f97faf5c72e08224d857fc35133db",
"880cd14280f4b9b6ed3986d6671f907d7cc2a198",
"fb72698cab7617ac416264415f13224dfd7a165e",
"4d081c50e250fa32ea8b1313cf8bb7c2ad7627fd",
"eba74343e2f15d62adedfd8c883ee0262b5c8021",
"c2d30fa8ef288618f65f6eed6e168e0d514886f4",
"8dcef98b1d52143e1e2dbc458ffe38f925786bf2",
"aa9b383c260e1d05fbbf6b30a02914555e20c725",
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5",
"dbd3641b371024f44d0e469a9c8f5457b0660de1",
"e8d3ffab552895c19b9fcf7aa264d277cde33881",
"7e59600739c96546163833214c36459e324bad0a",
}
func assertObjects(c *C, s storer.EncodedObjectStorer, expects []string) {
i, err := s.IterEncodedObjects(plumbing.AnyObject)
c.Assert(err, IsNil)
var count int
err = i.ForEach(func(plumbing.EncodedObject) error { count++; return nil })
c.Assert(err, IsNil)
c.Assert(count, Equals, len(expects))
for _, exp := range expects {
obt, err := s.EncodedObject(plumbing.AnyObject, plumbing.NewHash(exp))
c.Assert(err, IsNil)
c.Assert(obt.Hash().String(), Equals, exp)
}
}
func getIndexFromIdxFile(r io.Reader) idxfile.Index {
idxf := idxfile.NewMemoryIndex()
d := idxfile.NewDecoder(r)
if err := d.Decode(idxf); err != nil {
panic(err)
}
return idxf
}
func (s *PackfileSuite) TestSize(c *C) {
f := fixtures.Basic().ByTag("ref-delta").One()
index := getIndexFromIdxFile(f.Idx())
fs := osfs.New("")
pf, err := fs.Open(f.Packfile().Name())
c.Assert(err, IsNil)
packfile := packfile.NewPackfile(index, fs, pf)
defer packfile.Close()
// Get the size of binary.jpg, which is not delta-encoded.
offset, err := packfile.FindOffset(plumbing.NewHash("d5c0f4ab811897cadf03aec358ae60d21f91c50d"))
c.Assert(err, IsNil)
size, err := packfile.GetSizeByOffset(offset)
c.Assert(err, IsNil)
c.Assert(size, Equals, int64(76110))
// Get the size of the root commit, which is delta-encoded.
offset, err = packfile.FindOffset(plumbing.NewHash(f.Head))
c.Assert(err, IsNil)
size, err = packfile.GetSizeByOffset(offset)
c.Assert(err, IsNil)
c.Assert(size, Equals, int64(245))
}
