feat: push branch with changelog

git.go

@@ -1,17 +1,22 @@
 package rp
 
 import (
+	"context"
 	"errors"
+	"fmt"
 	"io"
+	"os"
 	"slices"
 	"strings"
 
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/transport"
 )
 
 const (
 	CommitSearchDepth = 50 // TODO: Increase
+	GitRemoteName     = "origin"
 )
 
 type Commit struct {
@@ -24,6 +29,28 @@ type Tag struct {
 	Name string
 }
 
+func CloneRepo(ctx context.Context, cloneURL, branch string, auth transport.AuthMethod) (*git.Repository, error) {
+	dir, err := os.MkdirTemp("", "releaser-pleaser.*")
+	if err != nil {
+		return nil, fmt.Errorf("failed to create temporary directory for repo clone: %w", err)
+	}
+
+	// TODO: Log tmpdir
+	fmt.Printf("Clone tmpdir: %s\n", dir)
+	repo, err := git.PlainCloneContext(ctx, dir, false, &git.CloneOptions{
+		URL:           cloneURL,
+		RemoteName:    GitRemoteName,
+		ReferenceName: plumbing.NewBranchReferenceName(branch),
+		SingleBranch:  false,
+		Auth:          auth,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("failed to clone repository: %w", err)
+	}
+
+	return repo, nil
+}
+
 func ReleasableCommits(repo *git.Repository) ([]Commit, *Tag, error) {
 
 	ref, err := repo.Head()