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// Copyright 2016 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gitindex
import (
"bytes"
"log"
"os"
"os/exec"
"path/filepath"
"sort"
git "github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/config"
)
// CloneRepo clones one repository, adding the given config
// settings. It returns the bare repo directory. The `name` argument
// determines where the repo is stored relative to `destDir`. Returns
// the directory of the repository.
func CloneRepo(destDir, name, cloneURL string, settings map[string]string) (string, error) {
parent := filepath.Join(destDir, filepath.Dir(name))
if err := os.MkdirAll(parent, 0755); err != nil {
return "", err
}
repoDest := filepath.Join(parent, filepath.Base(name)+".git")
if _, err := os.Lstat(repoDest); err == nil {
return "", nil
}
var keys []string
for k := range settings {
keys = append(keys, k)
}
sort.Strings(keys)
var config []string
for _, k := range keys {
if settings[k] != "" {
config = append(config, "--config", k+"="+settings[k])
}
}
cmd := exec.Command(
"git", "clone", "--bare", "--verbose", "--progress",
)
cmd.Args = append(cmd.Args, config...)
cmd.Args = append(cmd.Args, cloneURL, repoDest)
// Prevent prompting
cmd.Stdin = &bytes.Buffer{}
log.Println("running:", cmd.Args)
if err := cmd.Run(); err != nil {
return "", err
}
if err := setFetch(repoDest, "origin", "+refs/heads/*:refs/heads/*"); err != nil {
log.Printf("addFetch: %v", err)
}
return repoDest, nil
}
func setFetch(repoDir, remote, refspec string) error {
repo, err := git.PlainOpen(repoDir)
if err != nil {
return err
}
cfg, err := repo.Config()
if err != nil {
return err
}
rm := cfg.Remotes[remote]
if rm != nil {
rm.Fetch = []config.RefSpec{config.RefSpec(refspec)}
}
if err := repo.Storer.SetConfig(cfg); err != nil {
return err
}
return nil
}