move code.gitea.io/git to code.gitea.io/gitea/modules/git (#6364)

* move code.gitea.io/git to code.gitea.io/gitea/modules/git

* fix imports

* fix fmt

* fix misspell

* remove wrong tests data

* fix unit tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* enable Debug to trace the failure tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* comment commit count tests since git clone depth is 50

* fix tests

* update from code.gitea.io/git

* revert change to makefile

modules/git/command_test.go

@@ -0,0 +1,41 @@
+// Copyright 2017 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.
+
+// +build race
+
+package git
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestRunInDirTimeoutPipelineNoTimeout(t *testing.T) {
+
+	maxLoops := 1000
+
+	// 'git --version' does not block so it must be finished before the timeout triggered.
+	cmd := NewCommand("--version")
+	for i := 0; i < maxLoops; i++ {
+		if err := cmd.RunInDirTimeoutPipeline(-1, "", nil, nil); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestRunInDirTimeoutPipelineAlwaysTimeout(t *testing.T) {
+
+	maxLoops := 1000
+
+	// 'git hash-object --stdin' blocks on stdin so we can have the timeout triggered.
+	cmd := NewCommand("hash-object --stdin")
+	for i := 0; i < maxLoops; i++ {
+		if err := cmd.RunInDirTimeoutPipeline(1*time.Microsecond, "", nil, nil); err != nil {
+			if err != context.DeadlineExceeded {
+				t.Fatalf("Testing %d/%d: %v", i, maxLoops, err)
+			}
+		}
+	}
+}