Add push to remote mirror repository (#15157)

* Added push mirror model.

* Integrated push mirror into queue.

* Moved methods into own file.

* Added basic implementation.

* Mirror wiki too.

* Removed duplicated method.

* Get url for different remotes.

* Added migration.

* Unified remote url access.

* Add/Remove push mirror remotes.

* Prevent hangs with missing credentials.

* Moved code between files.

* Changed sanitizer interface.

* Added push mirror backend methods.

* Only update the mirror remote.

* Limit refs on push.

* Added UI part.

* Added missing table.

* Delete mirror if repository gets removed.

* Changed signature. Handle object errors.

* Added upload method.

* Added "upload" unit tests.

* Added transfer adapter unit tests.

* Send correct headers.

* Added pushing of LFS objects.

* Added more logging.

* Simpler body handling.

* Process files in batches to reduce HTTP calls.

* Added created timestamp.

* Fixed invalid column name.

* Changed name to prevent xorm auto setting.

* Remove table header im empty.

* Strip exit code from error message.

* Added docs page about mirroring.

* Fixed date.

* Fixed merge errors.

* Moved test to integrations.

* Added push mirror test.

* Added test.

modules/git/remote.go

@@ -0,0 +1,31 @@
+// Copyright 2021 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 "net/url"
+
+// GetRemoteAddress returns the url of a specific remote of the repository.
+func GetRemoteAddress(repoPath, remoteName string) (*url.URL, error) {
+	err := LoadGitVersion()
+	if err != nil {
+		return nil, err
+	}
+	var cmd *Command
+	if CheckGitVersionAtLeast("2.7") == nil {
+		cmd = NewCommand("remote", "get-url", remoteName)
+	} else {
+		cmd = NewCommand("config", "--get", "remote."+remoteName+".url")
+	}
+
+	result, err := cmd.RunInDir(repoPath)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(result) > 0 {
+		result = result[:len(result)-1]
+	}
+	return url.Parse(result)
+}

modules/git/repo.go

@@ -182,10 +182,12 @@ func Pull(repoPath string, opts PullRemoteOptions) error {
 
 // PushOptions options when push to remote
 type PushOptions struct {
-	Remote string
-	Branch string
-	Force  bool
-	Env    []string
+	Remote  string
+	Branch  string
+	Force   bool
+	Mirror  bool
+	Env     []string
+	Timeout time.Duration
 }
 
 // Push pushs local commits to given remote branch.
@@ -194,10 +196,20 @@ func Push(repoPath string, opts PushOptions) error {
 	if opts.Force {
 		cmd.AddArguments("-f")
 	}
-	cmd.AddArguments("--", opts.Remote, opts.Branch)
+	if opts.Mirror {
+		cmd.AddArguments("--mirror")
+	}
+	cmd.AddArguments("--", opts.Remote)
+	if len(opts.Branch) > 0 {
+		cmd.AddArguments(opts.Branch)
+	}
 	var outbuf, errbuf strings.Builder
 
-	err := cmd.RunInDirTimeoutEnvPipeline(opts.Env, -1, repoPath, &outbuf, &errbuf)
+	if opts.Timeout == 0 {
+		opts.Timeout = -1
+	}
+
+	err := cmd.RunInDirTimeoutEnvPipeline(opts.Env, opts.Timeout, repoPath, &outbuf, &errbuf)
 	if err != nil {
 		if strings.Contains(errbuf.String(), "non-fast-forward") {
 			return &ErrPushOutOfDate{