Initial logic is implemented

internal/utils/githelper/git.go

@@ -0,0 +1,113 @@
+package githelper
+
+import (
+	"errors"
+	"os"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/config"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/transport/ssh"
+	"github.com/sirupsen/logrus"
+)
+
+type Git struct {
+	SshPrivateKeyPath string
+}
+
+func NewGit(sshPrivateKeyPath string) Githelper {
+	return &Git{
+		SshPrivateKeyPath: sshPrivateKeyPath,
+	}
+}
+
+func (g *Git) CloneRepo(workdir, gitURL string, dry bool) error {
+	// TODO(@allanger): Support ssh keys with passwords
+	publicKeys, err := ssh.NewPublicKeysFromFile("git", g.SshPrivateKeyPath, "")
+	if err != nil {
+		return err
+	}
+	_, err = git.PlainClone(workdir, false, &git.CloneOptions{URL: gitURL, Auth: publicKeys})
+	if err != nil && !errors.Is(err, git.ErrEmptyUrls) {
+		logrus.Info("the repo seems to be empty, I'll try to bootsrap it")
+		// Initialize the repo
+		err := os.Mkdir(workdir, 0077700)
+		if err != nil {
+			return err
+		}
+		r, err := git.PlainInit(workdir, false)
+		if err != nil {
+			return err
+		}
+
+		logrus.Infof("adding an origin remote: %s", gitURL)
+		if _, err := r.CreateRemote(&config.RemoteConfig{Name: "origin", URLs: []string{gitURL}}); err != nil {
+			return err
+		}
+
+		logrus.Info("getting the worktree")
+		w, err := r.Worktree()
+		if err != nil {
+			return err
+		}
+
+		if err := r.Storer.SetReference(plumbing.NewHashReference(plumbing.Main, plumbing.ZeroHash)); err != nil {
+			return err
+		}
+
+		logrus.Info("creating an empty 'Init Commit'")
+		if _, err := w.Commit("Init Commit", &git.CommitOptions{
+			AllowEmptyCommits: true,
+		}); err != nil {
+			return err
+		}
+		if !dry {
+			if err := r.Push(&git.PushOptions{RemoteName: "origin"}); err != nil {
+				return err
+			}
+		}
+	} else if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (g *Git) AddAllAndCommit(workdir, message string) error {
+	r, err := git.PlainOpen(workdir)
+	if err != nil {
+		return err
+	}
+
+	w, err := r.Worktree()
+	if err != nil {
+		return err
+	}
+	if _, err := w.Add("."); err != nil {
+		return err
+	}
+
+	if _, err := w.Commit(message, &git.CommitOptions{}); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (g *Git) Push(workdir string) error {
+	r, err := git.PlainOpen(workdir)
+	if err != nil {
+		return err
+	}
+	publicKeys, err := ssh.NewPublicKeysFromFile("git", g.SshPrivateKeyPath, "")
+	if err != nil {
+		return err
+	}
+
+	if err := r.Push(&git.PushOptions{
+		RemoteName: "origin",
+		Auth:       publicKeys,
+	}); err != nil {
+		return err
+	}
+	return nil
+}

internal/utils/githelper/mock.go

@@ -0,0 +1,18 @@
+package githelper
+
+type Mock struct{}
+
+func NewGitMock() Githelper {
+	return &Mock{}
+}
+
+func (m *Mock) CloneRepo(workdir, gitURL string, dry bool) error {
+	return nil
+}
+
+func (g *Mock) AddAllAndCommit(workdir, message string) error {
+	return nil
+}
+func (g *Mock) Push(workdir string) error {
+	return nil
+}

internal/utils/githelper/types.go

@@ -0,0 +1,7 @@
+package githelper
+
+type Githelper interface {
+	CloneRepo(workdir, gitURL string, dry bool) error
+	AddAllAndCommit(workdir, message string) error
+	Push(workdir string) error
+}