Init project

internal/tools/git/gitlib.go

@@ -0,0 +1,39 @@
+package git
+
+import (
+	"context"
+	"os"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/transport/ssh"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+)
+type GitLib struct {
+	SSHKey string
+	SSHKeyPassword string
+}
+
+func (g *GitLib) CloneRepo (ctx context.Context, gitURL, revision string) (string, error) {
+	log := log.FromContext(ctx)
+	workdir, err := os.MkdirTemp("/tmp", "helmdownloader")
+	if err != nil {
+		return "", err
+	}
+	log.Info("A temporary directory is created", "path", workdir)
+	if len(g.SSHKey) > 0 {
+		keys, err := ssh.NewPublicKeys("git", []byte(g.SSHKey), g.SSHKeyPassword)
+		if err != nil {
+			return "", err
+		}
+		_, err = git.PlainClone(workdir, false, &git.CloneOptions{URL: gitURL, Auth: keys})
+		if err != nil {
+			return "", err
+		}
+	} else {
+		_, err = git.PlainClone(workdir, false, &git.CloneOptions{URL: gitURL})
+		if err != nil {
+			return "", err
+		}
+	}
+	return workdir, nil
+}