[backport/v1.9] Fix reading git notes from nested trees (#8189)

* Fix reading notes from nested trees

The GIT documentation for notes states "Permitted pathnames have the
form ab/cd/ef/.../abcdef...: a sequence of directory names of two
hexadecimal digits each followed by a filename with the rest of
the object ID."

* Add test case

* Fix new lines
This commit is contained in:
Filip Navara 2019-09-15 23:59:08 +02:00 committed by techknowlogick
parent 91ea086ebe
commit 6883c007d3
23 changed files with 62 additions and 18 deletions

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@ -7,7 +7,7 @@ package git
import (
"io/ioutil"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/object"
)
// NotesRef is the git ref where Gitea will look for git-notes data.
@ -27,13 +27,28 @@ func GetNote(repo *Repository, commitID string, note *Note) error {
return err
}
entry, err := notes.GetTreeEntryByPath(commitID)
if err != nil {
return err
remainingCommitID := commitID
path := ""
currentTree := notes.Tree.gogitTree
var file *object.File
for len(remainingCommitID) > 2 {
file, err = currentTree.File(remainingCommitID)
if err == nil {
path += remainingCommitID
break
}
if err == object.ErrFileNotFound {
currentTree, err = currentTree.Tree(remainingCommitID[0:2])
path += remainingCommitID[0:2] + "/"
remainingCommitID = remainingCommitID[2:]
}
if err != nil {
return err
}
}
blob := entry.Blob()
dataRc, err := blob.DataAsync()
blob := file.Blob
dataRc, err := blob.Reader()
if err != nil {
return err
}
@ -45,26 +60,21 @@ func GetNote(repo *Repository, commitID string, note *Note) error {
}
note.Message = d
commit, err := repo.gogitRepo.CommitObject(plumbing.Hash(notes.ID))
if err != nil {
return err
}
commitNodeIndex, commitGraphFile := repo.CommitNodeIndex()
if commitGraphFile != nil {
defer commitGraphFile.Close()
}
commitNode, err := commitNodeIndex.Get(commit.Hash)
if err != nil {
return nil
}
lastCommits, err := getLastCommitForPaths(commitNode, "", []string{commitID})
commitNode, err := commitNodeIndex.Get(notes.ID)
if err != nil {
return err
}
note.Commit = convertCommit(lastCommits[commitID])
lastCommits, err := getLastCommitForPaths(commitNode, "", []string{path})
if err != nil {
return err
}
note.Commit = convertCommit(lastCommits[path])
return nil
}

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@ -22,3 +22,17 @@ func TestGetNotes(t *testing.T) {
assert.Equal(t, []byte("Note contents\n"), note.Message)
assert.Equal(t, "Vladimir Panteleev", note.Commit.Author.Name)
}
func TestGetNestedNotes(t *testing.T) {
repoPath := filepath.Join(testReposDir, "repo3_notes")
repo, err := OpenRepository(repoPath)
assert.NoError(t, err)
note := Note{}
err = GetNote(repo, "3e668dbfac39cbc80a9ff9c61eb565d944453ba4", &note)
assert.NoError(t, err)
assert.Equal(t, []byte("Note 2"), note.Message)
err = GetNote(repo, "ba0a96fa63532d6c5087ecef070b0250ed72fa47", &note)
assert.NoError(t, err)
assert.Equal(t, []byte("Note 1"), note.Message)
}

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@ -0,0 +1 @@
2

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@ -0,0 +1 @@
ref: refs/heads/master

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@ -0,0 +1,7 @@
[core]
repositoryformatversion = 0
filemode = false
bare = false
logallrefupdates = true
symlinks = false
ignorecase = true

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@ -0,0 +1 @@
Unnamed repository; edit this file 'description' to name the repository.

Binary file not shown.

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@ -0,0 +1,2 @@
0000000000000000000000000000000000000000 ba0a96fa63532d6c5087ecef070b0250ed72fa47 Filip Navara <filip.navara@gmail.com> 1567767895 +0200 commit (initial): 1
ba0a96fa63532d6c5087ecef070b0250ed72fa47 3e668dbfac39cbc80a9ff9c61eb565d944453ba4 Filip Navara <filip.navara@gmail.com> 1567767909 +0200 commit: 2

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@ -0,0 +1,2 @@
0000000000000000000000000000000000000000 ba0a96fa63532d6c5087ecef070b0250ed72fa47 Filip Navara <filip.navara@gmail.com> 1567767895 +0200 commit (initial): 1
ba0a96fa63532d6c5087ecef070b0250ed72fa47 3e668dbfac39cbc80a9ff9c61eb565d944453ba4 Filip Navara <filip.navara@gmail.com> 1567767909 +0200 commit: 2

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@ -0,0 +1,3 @@
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@ -0,0 +1 @@
3e668dbfac39cbc80a9ff9c61eb565d944453ba4

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@ -0,0 +1 @@
654c8b6b63c08bf37f638d3f521626b7fbbd4d37