git: migrate to github.com/gogs/git-module@v1.0.0 (#5958)

* WIP

* Finish `internal/db/git_diff.go`

* FInish internal/db/mirror.go

* Finish internal/db/pull.go

* Finish internal/db/release.go

* Finish internal/db/repo.go

* Finish internal/db/repo_branch.go

* Finish internal/db/repo_editor.go

* Finish internal/db/update.go

* Save my work

* Add license header

* Compile!

* Merge master

* Finish internal/cmd/hook.go

* Finish internal/conf/static.go

* Finish internal/context/repo.go

* Finish internal/db/action.go

* Finish internal/db/git_diff.go

* Fix submodule URL inferring

* Finish internal/db/mirror.go

* Updat to beta.4

* css: update fonts

* Finish internal/db/pull.go

* Finish internal/db/release.go

* Finish internal/db/repo_branch.go

* Finish internal/db/wiki.go

* gitutil: enhance infer submodule UR

* Finish internal/route/api/v1/repo/commits.go

* mirror: only collect branch commits after sync

* mirror: fix tag support

* Finish internal/db/repo.go

* Finish internal/db/repo_editor.go

* Finish internal/db/update.go

* Finish internal/gitutil/pull_request.go

* Make it compile

* Finish internal/route/repo/setting.go

* Finish internal/route/repo/branch.go

* Finish internal/route/api/v1/repo/file.go

* Finish internal/route/repo/download.go

* Finish internal/route/repo/editor.go

* Use helper

* Finish internal/route/repo/issue.go

* Finish internal/route/repo/pull.go

* Finish internal/route/repo/release.go

* Finish internal/route/repo/repo.go

* Finish internal/route/repo/wiki.go

* Finish internal/route/repo/commit.go

* Finish internal/route/repo/view.go

* Finish internal/gitutil/tag.go

* go.sum

1 files changed, 23 insertions, 0 deletions

diff --git a/internal/gitutil/error_test.go b/internal/gitutil/error_test.go
new file mode 100644
index 00000000..c0b9f77a
--- /dev/null
+++ b/internal/gitutil/error_test.go
@@ -0,0 +1,23 @@
+// Copyright 2020 The Gogs 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 gitutil
+
+import (
+	"os"
+	"testing"
+
+	"github.com/gogs/git-module"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIsErrRevisionNotExist(t *testing.T) {
+	assert.True(t, IsErrRevisionNotExist(git.ErrRevisionNotExist))
+	assert.False(t, IsErrRevisionNotExist(os.ErrNotExist))
+}
+
+func TestIsErrNoMergeBase(t *testing.T) {
+	assert.True(t, IsErrNoMergeBase(git.ErrNoMergeBase))
+	assert.False(t, IsErrNoMergeBase(os.ErrNotExist))
+}