added io to git clone command run

internal/git_clone_test.go

@@ -6,14 +6,14 @@ import (
 	"path/filepath"
 	"testing"
 
+	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/git"
 	"github.com/stretchr/testify/assert"
 )
 
-// TODO: add assertion that the git tool is not called, maybe by voiding PATH
 // TODO: add assertion for error if git CLI is not found
-func TestGitClonePublicRepository(t *testing.T) {
+func TestAccGitClonePublicRepository(t *testing.T) {
-	// t.Log(GetEnvOrSkipTest(t, "CLOUD_ENV"))
+	t.Log(GetEnvOrSkipTest(t, "CLOUD_ENV"))
 
 	tmpDir := t.TempDir()
 	ctx := context.Background()
@@ -38,11 +38,40 @@ func TestGitClonePublicRepository(t *testing.T) {
 	assert.Contains(t, string(b), "Copyright (2023) Databricks, Inc.")
 }
 
-func TestAccGitClonePrivateRepository(t *testing.T) {
+func TestAccGitClonePublicRepositoryForTagReference(t *testing.T) {
 	// t.Log(GetEnvOrSkipTest(t, "CLOUD_ENV"))
 
 	tmpDir := t.TempDir()
 	ctx := context.Background()
+	var err error
+
+	// We unset PATH to ensure that git.Clone cannot rely on the git CLI
+	t.Setenv("PATH", "")
+
+	err = git.Clone(ctx, git.CloneOptions{
+		Provider:       "github",
+		Organization:   "databricks",
+		RepositoryName: "cli",
+		Reference:      "snapshot",
+		TargetDir:      tmpDir,
+	})
+
+	assert.NoError(t, err)
+	assert.DirExists(t, filepath.Join(tmpDir, "cli-snapshot"))
+
+	b, err := os.ReadFile(filepath.Join(tmpDir, "cli-snapshot/NOTICE"))
+	assert.NoError(t, err)
+	assert.Contains(t, string(b), "Copyright (2023) Databricks, Inc.")
+}
+
+// TODO(file an issue before merge): create a dedicated databricks private repository
+// and test this for branches and tags
+func TestAccGitClonePrivateRepository(t *testing.T) {
+	t.Log(GetEnvOrSkipTest(t, "CLOUD_ENV"))
+
+	tmpDir := t.TempDir()
+	cmdIO := cmdio.NewIO("text", os.Stdin, os.Stdout, os.Stderr, "")
+	ctx := cmdio.InContext(context.Background(), cmdIO)
 
 	// This is a private repository only accessible to databricks employees
 	err := git.Clone(ctx, git.CloneOptions{

libs/cmdio/io.go

@@ -78,6 +78,21 @@ func IsErrTTY(ctx context.Context) bool {
 	return IsTTY(c.err)
 }
 
+func In(ctx context.Context) io.Reader {
+	c := fromContext(ctx)
+	return c.in
+}
+
+func Out(ctx context.Context) io.Writer {
+	c := fromContext(ctx)
+	return c.out
+}
+
+func Err(ctx context.Context) io.Writer {
+	c := fromContext(ctx)
+	return c.err
+}
+
 // IsTTY detects if stdout is a terminal. It assumes that stderr is terminal as well
 func (c *cmdIO) IsTTY() bool {
 	f, ok := c.out.(*os.File)

libs/git/clone.go

@@ -10,6 +10,7 @@ import (
 	"os/exec"
 	"path/filepath"
 
+	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/zip"
 )
 
@@ -86,11 +87,23 @@ func download(ctx context.Context, url string, dest string) error {
 	return err
 }
 
-// TODO: check stdin / stdout works properly with git clone and requesting an ID/password
 func clonePrivate(ctx context.Context, opts CloneOptions) error {
 	// TODO: test that the branch --branch flag works with tags
 	cmd := exec.CommandContext(ctx, "git", "clone", opts.repoUrl(), opts.destination(), "--branch", opts.Reference)
-	return cmd.Run()
+
+	// Redirect exec command output
+	cmd.Stderr = cmdio.Err(ctx)
+	cmd.Stdout = cmdio.Out(ctx)
+	cmd.Stdin = cmdio.In(ctx)
+
+	// start git clone
+	err := cmd.Start()
+	if err != nil {
+		return err
+	}
+
+	// wait for git clone to complete
+	return cmd.Wait()
 }
 
 func clonePublic(ctx context.Context, opts CloneOptions) error {
@@ -123,7 +136,6 @@ func Clone(ctx context.Context, opts CloneOptions) error {
 
 	// If a public repository was not found, we defer to the git CLI
 	if errors.Is(err, errNotFound) {
-
 		return clonePrivate(ctx, opts)
 	}
 	return err