Fix empty commits now showing in repo overview (go-gitea#7521)

* Fix empty commits now showing in repo overview

* add test

* make fmt

modules/git/commit_info.go

@@ -68,7 +68,9 @@ func (tes Entries) GetCommitsInfo(commit *Commit, treePath string, cache LastCom
 	// get it for free during the tree traversal and it's used for listing
 	// pages to display information about newest commit for a given path.
 	var treeCommit *Commit
-	if rev, ok := revs[""]; ok {
+	if treePath == "" {
+		treeCommit = commit
+	} else if rev, ok := revs[""]; ok {
 		treeCommit = convertCommit(rev)
 	}
 	return commitsInfo, treeCommit, nil

modules/git/commit_info_test.go

@@ -28,21 +28,27 @@ func cloneRepo(url, dir, name string) (string, error) {
 func testGetCommitsInfo(t *testing.T, repo1 *Repository) {
 	// these test case are specific to the repo1 test repo
 	testCases := []struct {
-		CommitID    string
-		Path        string
-		ExpectedIDs map[string]string
+		CommitID           string
+		Path               string
+		ExpectedIDs        map[string]string
+		ExpectedTreeCommit string
 	}{
 		{"8d92fc957a4d7cfd98bc375f0b7bb189a0d6c9f2", "", map[string]string{
 			"file1.txt": "95bb4d39648ee7e325106df01a621c530863a653",
 			"file2.txt": "8d92fc957a4d7cfd98bc375f0b7bb189a0d6c9f2",
-		}},
+		}, "8d92fc957a4d7cfd98bc375f0b7bb189a0d6c9f2"},
 		{"2839944139e0de9737a044f78b0e4b40d989a9e3", "", map[string]string{
 			"file1.txt":   "2839944139e0de9737a044f78b0e4b40d989a9e3",
 			"branch1.txt": "9c9aef8dd84e02bc7ec12641deb4c930a7c30185",
-		}},
+		}, "2839944139e0de9737a044f78b0e4b40d989a9e3"},
 		{"5c80b0245c1c6f8343fa418ec374b13b5d4ee658", "branch2", map[string]string{
 			"branch2.txt": "5c80b0245c1c6f8343fa418ec374b13b5d4ee658",
-		}},
+		}, "5c80b0245c1c6f8343fa418ec374b13b5d4ee658"},
+		{"feaf4ba6bc635fec442f46ddd4512416ec43c2c2", "", map[string]string{
+			"file1.txt": "95bb4d39648ee7e325106df01a621c530863a653",
+			"file2.txt": "8d92fc957a4d7cfd98bc375f0b7bb189a0d6c9f2",
+			"foo":       "37991dec2c8e592043f47155ce4808d4580f9123",
+		}, "feaf4ba6bc635fec442f46ddd4512416ec43c2c2"},
 	}
 	for _, testCase := range testCases {
 		commit, err := repo1.GetCommit(testCase.CommitID)
@@ -51,7 +57,8 @@ func testGetCommitsInfo(t *testing.T, repo1 *Repository) {
 		assert.NoError(t, err)
 		entries, err := tree.ListEntries()
 		assert.NoError(t, err)
-		commitsInfo, _, err := entries.GetCommitsInfo(commit, testCase.Path, nil)
+		commitsInfo, treeCommit, err := entries.GetCommitsInfo(commit, testCase.Path, nil)
+		assert.Equal(t, testCase.ExpectedTreeCommit, treeCommit.ID.String())
 		assert.NoError(t, err)
 		assert.Len(t, commitsInfo, len(testCase.ExpectedIDs))
 		for _, commitInfo := range commitsInfo {

modules/git/repo_stats_test.go

@@ -23,12 +23,12 @@ func TestRepository_GetCodeActivityStats(t *testing.T) {
 	assert.NoError(t, err)
 	assert.NotNil(t, code)
 
-	assert.EqualValues(t, 8, code.CommitCount)
-	assert.EqualValues(t, 2, code.AuthorCount)
-	assert.EqualValues(t, 8, code.CommitCountInAllBranches)
+	assert.EqualValues(t, 9, code.CommitCount)
+	assert.EqualValues(t, 3, code.AuthorCount)
+	assert.EqualValues(t, 9, code.CommitCountInAllBranches)
 	assert.EqualValues(t, 10, code.Additions)
 	assert.EqualValues(t, 1, code.Deletions)
-	assert.Len(t, code.Authors, 2)
+	assert.Len(t, code.Authors, 3)
 	assert.Contains(t, code.Authors, "tris.git@shoddynet.org")
 	assert.EqualValues(t, 3, code.Authors["tris.git@shoddynet.org"])
 	assert.EqualValues(t, 5, code.Authors[""])

modules/git/tests/repos/repo1_bare/logs/HEAD

@@ -0,0 +1 @@
+37991dec2c8e592043f47155ce4808d4580f9123 feaf4ba6bc635fec442f46ddd4512416ec43c2c2 silverwind <me@silverwind.io> 1563741799 +0200	push

modules/git/tests/repos/repo1_bare/logs/refs/heads/master

@@ -0,0 +1 @@
+37991dec2c8e592043f47155ce4808d4580f9123 feaf4ba6bc635fec442f46ddd4512416ec43c2c2 silverwind <me@silverwind.io> 1563741799 +0200	push

modules/git/tests/repos/repo1_bare/refs/heads/master

@@ -1 +1 @@
-37991dec2c8e592043f47155ce4808d4580f9123
+feaf4ba6bc635fec442f46ddd4512416ec43c2c2