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package commitgraph
import (
"path"
"testing"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/cache"
commitgraph "github.com/go-git/go-git/v5/plumbing/format/commitgraph/v2"
"github.com/go-git/go-git/v5/plumbing/format/packfile"
"github.com/go-git/go-git/v5/storage/filesystem"
fixtures "github.com/go-git/go-git-fixtures/v4"
. "gopkg.in/check.v1"
)
func Test(t *testing.T) { TestingT(t) }
type CommitNodeSuite struct {
fixtures.Suite
}
var _ = Suite(&CommitNodeSuite{})
func unpackRepository(f *fixtures.Fixture) *filesystem.Storage {
storer := filesystem.NewStorage(f.DotGit(), cache.NewObjectLRUDefault())
p := f.Packfile()
defer p.Close()
packfile.UpdateObjectStorage(storer, p)
return storer
}
func testWalker(c *C, nodeIndex CommitNodeIndex) {
head, err := nodeIndex.Get(plumbing.NewHash("b9d69064b190e7aedccf84731ca1d917871f8a1c"))
c.Assert(err, IsNil)
iter := NewCommitNodeIterCTime(
head,
nil,
nil,
)
var commits []CommitNode
iter.ForEach(func(c CommitNode) error {
commits = append(commits, c)
return nil
})
c.Assert(commits, HasLen, 9)
expected := []string{
"b9d69064b190e7aedccf84731ca1d917871f8a1c",
"6f6c5d2be7852c782be1dd13e36496dd7ad39560",
"a45273fe2d63300e1962a9e26a6b15c276cd7082",
"c0edf780dd0da6a65a7a49a86032fcf8a0c2d467",
"bb13916df33ed23004c3ce9ed3b8487528e655c1",
"03d2c021ff68954cf3ef0a36825e194a4b98f981",
"ce275064ad67d51e99f026084e20827901a8361c",
"e713b52d7e13807e87a002e812041f248db3f643",
"347c91919944a68e9413581a1bc15519550a3afe",
}
for i, commit := range commits {
c.Assert(commit.ID().String(), Equals, expected[i])
}
}
func testParents(c *C, nodeIndex CommitNodeIndex) {
merge3, err := nodeIndex.Get(plumbing.NewHash("6f6c5d2be7852c782be1dd13e36496dd7ad39560"))
c.Assert(err, IsNil)
var parents []CommitNode
merge3.ParentNodes().ForEach(func(c CommitNode) error {
parents = append(parents, c)
return nil
})
c.Assert(parents, HasLen, 3)
expected := []string{
"ce275064ad67d51e99f026084e20827901a8361c",
"bb13916df33ed23004c3ce9ed3b8487528e655c1",
"a45273fe2d63300e1962a9e26a6b15c276cd7082",
}
for i, parent := range parents {
c.Assert(parent.ID().String(), Equals, expected[i])
}
}
func testCommitAndTree(c *C, nodeIndex CommitNodeIndex) {
merge3node, err := nodeIndex.Get(plumbing.NewHash("6f6c5d2be7852c782be1dd13e36496dd7ad39560"))
c.Assert(err, IsNil)
merge3commit, err := merge3node.Commit()
c.Assert(err, IsNil)
c.Assert(merge3node.ID().String(), Equals, merge3commit.ID().String())
tree, err := merge3node.Tree()
c.Assert(err, IsNil)
c.Assert(tree.ID().String(), Equals, merge3commit.TreeHash.String())
}
func (s *CommitNodeSuite) TestObjectGraph(c *C) {
f := fixtures.ByTag("commit-graph").One()
storer := unpackRepository(f)
nodeIndex := NewObjectCommitNodeIndex(storer)
testWalker(c, nodeIndex)
testParents(c, nodeIndex)
testCommitAndTree(c, nodeIndex)
}
func (s *CommitNodeSuite) TestCommitGraph(c *C) {
f := fixtures.ByTag("commit-graph").One()
storer := unpackRepository(f)
reader, err := storer.Filesystem().Open(path.Join("objects", "info", "commit-graph"))
c.Assert(err, IsNil)
defer reader.Close()
index, err := commitgraph.OpenFileIndex(reader)
c.Assert(err, IsNil)
defer index.Close()
nodeIndex := NewGraphCommitNodeIndex(index, storer)
testWalker(c, nodeIndex)
testParents(c, nodeIndex)
testCommitAndTree(c, nodeIndex)
}
func (s *CommitNodeSuite) TestMixedGraph(c *C) {
f := fixtures.ByTag("commit-graph").One()
storer := unpackRepository(f)
// Take the commit-graph file and copy it to memory index without the last commit
reader, err := storer.Filesystem().Open(path.Join("objects", "info", "commit-graph"))
c.Assert(err, IsNil)
defer reader.Close()
fileIndex, err := commitgraph.OpenFileIndex(reader)
c.Assert(err, IsNil)
defer fileIndex.Close()
memoryIndex := commitgraph.NewMemoryIndex()
defer memoryIndex.Close()
for i, hash := range fileIndex.Hashes() {
if hash.String() != "b9d69064b190e7aedccf84731ca1d917871f8a1c" {
node, err := fileIndex.GetCommitDataByIndex(uint32(i))
c.Assert(err, IsNil)
memoryIndex.Add(hash, node)
}
}
nodeIndex := NewGraphCommitNodeIndex(memoryIndex, storer)
testWalker(c, nodeIndex)
testParents(c, nodeIndex)
testCommitAndTree(c, nodeIndex)
}
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