fix: fix coder template pull on Windows (#9327)

* fix: fix coder template pull on Windows

Signed-off-by: Spike Curtis <spike@coder.com>

* appease linter

Signed-off-by: Spike Curtis <spike@coder.com>

* improvements from code review

Signed-off-by: Spike Curtis <spike@coder.com>

---------

Signed-off-by: Spike Curtis <spike@coder.com>

cli/templatepull.go

@@ -83,7 +83,7 @@ func (r *RootCmd) templatePull() *clibase.Cmd {
 			}
 
 			if dest == "" {
-				dest = templateName + "/"
+				dest = templateName
 			}
 
 			err = os.MkdirAll(dest, 0o750)

cli/templatepull_test.go

@@ -40,20 +40,17 @@ func dirSum(t *testing.T, dir string) string {
 	return hex.EncodeToString(sum.Sum(nil))
 }
 
-func TestTemplatePull(t *testing.T) {
-	t.Parallel()
-
-	t.Run("NoName", func(t *testing.T) {
+func TestTemplatePull_NoName(t *testing.T) {
 	t.Parallel()
 
 	inv, _ := clitest.New(t, "templates", "pull")
 	err := inv.Run()
 	require.Error(t, err)
-	})
+}
 
 // Stdout tests that 'templates pull' pulls down the latest template
 // and writes it to stdout.
-	t.Run("Stdout", func(t *testing.T) {
+func TestTemplatePull_Stdout(t *testing.T) {
 	t.Parallel()
 
 	client := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
@@ -87,11 +84,11 @@ func TestTemplatePull(t *testing.T) {
 	require.NoError(t, err)
 
 	require.True(t, bytes.Equal(expected, buf.Bytes()), "tar files differ")
-	})
+}
 
 // ToDir tests that 'templates pull' pulls down the latest template
 // and writes it to the correct directory.
-	t.Run("ToDir", func(t *testing.T) {
+func TestTemplatePull_ToDir(t *testing.T) {
 	t.Parallel()
 
 	client := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
@@ -135,11 +132,68 @@ func TestTemplatePull(t *testing.T) {
 		dirSum(t, expectedDest),
 		dirSum(t, actualDest),
 	)
-	})
+}
+
+// ToDir tests that 'templates pull' pulls down the latest template
+// and writes it to a directory with the name of the template if the path is not implicitly supplied.
+// nolint: paralleltest
+func TestTemplatePull_ToImplicit(t *testing.T) {
+	client := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
+	user := coderdtest.CreateFirstUser(t, client)
+
+	// Create an initial template bundle.
+	source1 := genTemplateVersionSource()
+	// Create an updated template bundle. This will be used to ensure
+	// that templates are correctly returned in order from latest to oldest.
+	source2 := genTemplateVersionSource()
+
+	expected, err := echo.Tar(source2)
+	require.NoError(t, err)
+
+	version1 := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, source1)
+	_ = coderdtest.AwaitTemplateVersionJob(t, client, version1.ID)
+
+	template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version1.ID)
+
+	// Update the template version so that we can assert that templates
+	// are being sorted correctly.
+	_ = coderdtest.UpdateTemplateVersion(t, client, user.OrganizationID, source2, template.ID)
+
+	// create a tempdir and change the working directory to it for the duration of the test (cannot run in parallel)
+	dir := t.TempDir()
+	wd, err := os.Getwd()
+	require.NoError(t, err)
+	err = os.Chdir(dir)
+	require.NoError(t, err)
+	defer func() {
+		err := os.Chdir(wd)
+		require.NoError(t, err, "if this fails, it can break other subsequent tests due to wrong working directory")
+	}()
+
+	expectedDest := filepath.Join(dir, "expected")
+	actualDest := filepath.Join(dir, template.Name)
+
+	ctx := context.Background()
+
+	err = extract.Tar(ctx, bytes.NewReader(expected), expectedDest, nil)
+	require.NoError(t, err)
+
+	inv, root := clitest.New(t, "templates", "pull", template.Name)
+	clitest.SetupConfig(t, client, root)
+
+	ptytest.New(t).Attach(inv)
+
+	require.NoError(t, inv.Run())
+
+	require.Equal(t,
+		dirSum(t, expectedDest),
+		dirSum(t, actualDest),
+	)
+}
 
 // FolderConflict tests that 'templates pull' fails when a folder with has
 // existing
-	t.Run("FolderConflict", func(t *testing.T) {
+func TestTemplatePull_FolderConflict(t *testing.T) {
 	t.Parallel()
 
 	client := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
@@ -198,7 +252,6 @@ func TestTemplatePull(t *testing.T) {
 	require.NoError(t, err)
 
 	require.Len(t, ents, 1, "conflict folder should have single conflict file")
-	})
 }
 
 // genTemplateVersionSource returns a unique bundle that can be used to create