Show git-notes (#6984)

* Show git-notes

* Make git-notes heading text localizable

* Refactor git-notes data fetching to a separate function

* Display the author and time of git notes

* Move note bubble inside the commit bubble

* Revert "Move note bubble inside the commit bubble"

This reverts commit c0951fe0e3.

* Add test for git-notes

* testing ui

* Polish CSS

* Apply suggestions from code review

Co-Authored-By: Lauris BH <lauris@nix.lv>

modules/git/notes.go

@@ -0,0 +1,60 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package git
+
+import (
+	"io/ioutil"
+
+	"gopkg.in/src-d/go-git.v4/plumbing"
+)
+
+// NotesRef is the git ref where Gitea will look for git-notes data.
+// The value ("refs/notes/commits") is the default ref used by git-notes.
+const NotesRef = "refs/notes/commits"
+
+// Note stores information about a note created using git-notes.
+type Note struct {
+	Message []byte
+	Commit  *Commit
+}
+
+// GetNote retrieves the git-notes data for a given commit.
+func GetNote(repo *Repository, commitID string, note *Note) error {
+	notes, err := repo.GetCommit(NotesRef)
+	if err != nil {
+		return err
+	}
+
+	entry, err := notes.GetTreeEntryByPath(commitID)
+	if err != nil {
+		return err
+	}
+
+	blob := entry.Blob()
+	dataRc, err := blob.DataAsync()
+	if err != nil {
+		return err
+	}
+
+	defer dataRc.Close()
+	d, err := ioutil.ReadAll(dataRc)
+	if err != nil {
+		return err
+	}
+	note.Message = d
+
+	commit, err := repo.gogitRepo.CommitObject(plumbing.Hash(notes.ID))
+	if err != nil {
+		return err
+	}
+
+	lastCommits, err := getLastCommitForPaths(commit, "", []string{commitID})
+	if err != nil {
+		return err
+	}
+	note.Commit = convertCommit(lastCommits[commitID])
+
+	return nil
+}

modules/git/notes_test.go

@@ -0,0 +1,24 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package git
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetNotes(t *testing.T) {
+	bareRepo1Path := filepath.Join(testReposDir, "repo1_bare")
+	bareRepo1, err := OpenRepository(bareRepo1Path)
+	assert.NoError(t, err)
+
+	note := Note{}
+	err = GetNote(bareRepo1, "95bb4d39648ee7e325106df01a621c530863a653", &note)
+	assert.NoError(t, err)
+	assert.Equal(t, []byte("Note contents\n"), note.Message)
+	assert.Equal(t, "Vladimir Panteleev", note.Commit.Author.Name)
+}

modules/git/repo_ref_test.go

@@ -19,13 +19,14 @@ func TestRepository_GetRefs(t *testing.T) {
 	refs, err := bareRepo1.GetRefs()
 
 	assert.NoError(t, err)
-	assert.Len(t, refs, 4)
+	assert.Len(t, refs, 5)
 
 	expectedRefs := []string{
 		BranchPrefix + "branch1",
 		BranchPrefix + "branch2",
 		BranchPrefix + "master",
 		TagPrefix + "test",
+		NotesRef,
 	}
 
 	for _, ref := range refs {

modules/git/tests/repos/repo1_bare/objects/ca/6b5ddf303169a72d2a2971acde4f6eea194e5c

@@ -0,0 +1,4 @@
+x
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+<EFBFBD>0F]<5D><14><>B<EFBFBD>&&m"<22>@\<5C>Of<4F>6<EFBFBD>HG<48><47><EFBFBD><EFBFBD>
+~˷x<CBB7><78>y<1C><><EFBFBD><EFBFBD> <20><19>?[<5B><><EFBFBD><EFBFBD>B<EFBFBD>&
+H<b<>yߙNGt<47><74>ڨ<EFBFBD><DAA8>~.<2E>"<22>1x<>Ix`<60><><EFBFBD><EFBFBD><EFBFBD>&=㚸,}<7D><>{<7B>X<EFBFBD><58><EFBFBD><EFBFBD><EFBFBD>	<09>p<><70>)<29><><EFBFBD>j<7F>}^ 1AZ<41><5A><0E><>3<EFBFBD>,<2C><>
<01><>I0

modules/git/tests/repos/repo1_bare/refs/notes/commits

@@ -0,0 +1 @@
+ca6b5ddf303169a72d2a2971acde4f6eea194e5c