add cli client for repo

cli/git.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"os"
+
+	"github.com/go-git/go-billy/v5"
+	"github.com/go-git/go-billy/v5/memfs"
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/transport/http"
+	memory "github.com/go-git/go-git/v5/storage/memory"
+	"github.com/golang/glog"
+	"github.com/pkg/errors"
+)
+
+const (
+	repository = "https://github.com/ViktorBarzin/infra"
+)
+
+var (
+	gitUser  = os.Getenv("GIT_USER")
+	gitToken = os.Getenv("GIT_TOKEN")
+)
+
+type GitFS struct {
+	repo *git.Repository
+	fs   billy.Filesystem
+	auth *http.BasicAuth
+}
+
+func NewGitFS(repoURL string) (*GitFS, error) {
+	glog.Infof("initializing new git fs from repo url: %s", repoURL)
+	auth := &http.BasicAuth{
+		Username: gitUser,
+		Password: gitToken,
+	}
+	storer := memory.NewStorage()
+
+	r, err := git.Clone(storer, g.fs, &git.CloneOptions{
+		URL:  repository,
+		Auth: auth,
+	})
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to clone repo from repo url '%s'", repoURL)
+	}
+	return &GitFS{repo: r, fs: memfs.New(), auth: auth}, nil
+}
+
+func (g *GitFS) Push() error {
+	return g.repo.Push(&git.PushOptions{Auth: g.auth})
+}