48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
|
package utils
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"io/ioutil"
|
||
|
|
"net/http"
|
||
|
|
"os/exec"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"github.com/docker/docker/pkg/urlutil"
|
||
|
|
)
|
||
|
|
|
||
|
|
func GitClone(remoteURL string) (string, error) {
|
||
|
|
if !urlutil.IsGitTransport(remoteURL) {
|
||
|
|
remoteURL = "https://" + remoteURL
|
||
|
|
}
|
||
|
|
root, err := ioutil.TempDir("", "docker-build-git")
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
|
||
|
|
clone := cloneArgs(remoteURL, root)
|
||
|
|
|
||
|
|
if output, err := exec.Command("git", clone...).CombinedOutput(); err != nil {
|
||
|
|
return "", fmt.Errorf("Error trying to use git: %s (%s)", err, output)
|
||
|
|
}
|
||
|
|
|
||
|
|
return root, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func cloneArgs(remoteURL, root string) []string {
|
||
|
|
args := []string{"clone", "--recursive"}
|
||
|
|
shallow := true
|
||
|
|
|
||
|
|
if strings.HasPrefix(remoteURL, "http") {
|
||
|
|
res, err := http.Head(fmt.Sprintf("%s/info/refs?service=git-upload-pack", remoteURL))
|
||
|
|
if err != nil || res.Header.Get("Content-Type") != "application/x-git-upload-pack-advertisement" {
|
||
|
|
shallow = false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if shallow {
|
||
|
|
args = append(args, "--depth", "1")
|
||
|
|
}
|
||
|
|
|
||
|
|
return append(args, remoteURL, root)
|
||
|
|
}
|