Fixed #18296 -- Created missing custom target directory for startproject and startapp.

django/core/management/templates.py

@@ -46,7 +46,9 @@ class TemplateCommand(BaseCommand):
     def add_arguments(self, parser):
         parser.add_argument("name", help="Name of the application or project.")
         parser.add_argument(
-            "directory", nargs="?", help="Optional destination directory"
+            "directory",
+            nargs="?",
+            help="Optional destination directory, this will be created if needed.",
         )
         parser.add_argument(
             "--template", help="The path or URL to load the template from."
@@ -105,10 +107,10 @@ class TemplateCommand(BaseCommand):
             if app_or_project == "app":
                 self.validate_name(os.path.basename(top_dir), "directory")
             if not os.path.exists(top_dir):
-                raise CommandError(
-                    "Destination directory '%s' does not "
-                    "exist, please create it first." % top_dir
-                )
+                try:
+                    os.makedirs(top_dir)
+                except OSError as e:
+                    raise CommandError(e)
 
         # Find formatters, which are external executables, before input
         # from the templates can sneak into the path.

docs/intro/tutorial01.txt

@@ -45,21 +45,16 @@ including database configuration, Django-specific options and
 application-specific settings.
 
 From the command line, ``cd`` into a directory where you'd like to store your
-code and create a new directory named ``djangotutorial``. (This directory name
-doesn't matter to Django; you can rename it to anything you like.)
-
-.. console::
-
-   $ mkdir djangotutorial
-
-Then, run the following command to bootstrap a new Django project:
+code and run the following command to bootstrap a new Django project:
 
 .. console::
 
    $ django-admin startproject mysite djangotutorial
 
-This will create a project called ``mysite`` inside the ``djangotutorial``
-directory. If it didn't work, see :ref:`troubleshooting-django-admin`.
+This will create a directory ``djangotutorial`` with a project called
+``mysite`` inside. The directory name doesn't matter to Django; you can rename
+it to anything you like. If it didn't work, see
+:ref:`troubleshooting-django-admin`.
 
 .. note::
 

docs/ref/django-admin.txt

@@ -1266,9 +1266,13 @@ By default, :source:`the new directory <django/conf/app_template>` contains a
 ``models.py`` file and other app template files. If only the app name is given,
 the app directory will be created in the current working directory.
 
-If the optional destination is provided, Django will use that existing
-directory rather than creating a new one. You can use '.' to denote the current
-working directory.
+If the optional destination is provided, Django will use that name instead. If
+the directory with the given name doesn't exist, it will be created. You can
+use '.' to denote the current working directory.
+
+.. versionchanged:: 6.0
+
+    Automatic creation of the destination directory was added.
 
 For example:
 
@@ -1378,9 +1382,14 @@ If only the project name is given, both the project directory and project
 package will be named ``<projectname>`` and the project directory
 will be created in the current working directory.
 
-If the optional destination is provided, Django will use that existing
-directory as the project directory, and create ``manage.py`` and the project
-package within it. Use '.' to denote the current working directory.
+If the optional destination is provided, Django will use that name as the
+project directory, and create ``manage.py`` and the project package within it.
+If the directory with the given name doesn't exist, it will be created. Use '.'
+to denote the current working directory.
+
+.. versionchanged:: 6.0
+
+    Automatic creation of the destination directory was added.
 
 For example:
 

docs/releases/6.0.txt

@@ -170,7 +170,8 @@ Logging
 Management Commands
 ~~~~~~~~~~~~~~~~~~~
 
-* ...
+* The :djadmin:`startproject` and :djadmin:`startapp` commands now create the
+  custom target directory if it doesn't exist.
 
 Migrations
 ~~~~~~~~~~

tests/admin_scripts/tests.py

@@ -2843,8 +2843,7 @@ class StartProject(LiveServerTestCase, AdminScriptTestCase):
 
     def test_custom_project_destination_missing(self):
         """
-        Make sure an exception is raised when the provided
-        destination directory doesn't exist
+        Create the directory when the provided destination directory doesn't exist.
         """
         template_path = os.path.join(custom_templates_dir, "project_template")
         args = [
@@ -2857,12 +2856,8 @@ class StartProject(LiveServerTestCase, AdminScriptTestCase):
         testproject_dir = os.path.join(self.test_dir, "project_dir2")
         out, err = self.run_django_admin(args)
         self.assertNoOutput(out)
-        self.assertOutput(
-            err,
-            "Destination directory '%s' does not exist, please create it first."
-            % testproject_dir,
-        )
-        self.assertFalse(os.path.exists(testproject_dir))
+        self.assertNoOutput(err)
+        self.assertTrue(os.path.exists(testproject_dir))
 
     def test_custom_project_template_with_non_ascii_templates(self):
         """
@@ -3099,6 +3094,66 @@ class StartApp(AdminScriptTestCase):
                 content,
             )
 
+    def test_creates_directory_when_custom_app_destination_missing(self):
+        args = [
+            "startapp",
+            "my_app",
+            "my_app",
+        ]
+        testapp_dir = os.path.join(self.test_dir, "my_app")
+        out, err = self.run_django_admin(args)
+        self.assertNoOutput(out)
+        self.assertNoOutput(err)
+        self.assertTrue(os.path.exists(testapp_dir))
+
+    def test_custom_app_destination_missing_with_nested_subdirectory(self):
+        args = [
+            "startapp",
+            "my_app",
+            "apps/my_app",
+        ]
+        testapp_dir = os.path.join(self.test_dir, "apps", "my_app")
+        out, err = self.run_django_admin(args)
+        self.assertNoOutput(out)
+        self.assertNoOutput(err)
+        self.assertTrue(os.path.exists(testapp_dir))
+
+    def test_custom_name_with_app_within_other_app(self):
+        parent_app_dir = os.path.join(self.test_dir, "parent")
+        self.run_django_admin(["startapp", "parent"])
+        self.assertTrue(os.path.exists(parent_app_dir))
+
+        nested_args = ["startapp", "child", "parent/child"]
+        child_app_dir = os.path.join(self.test_dir, "parent", "child")
+        out, err = self.run_django_admin(nested_args)
+        self.assertNoOutput(out)
+        self.assertNoOutput(err)
+        self.assertTrue(os.path.exists(child_app_dir))
+
+    @unittest.skipIf(
+        sys.platform == "win32",
+        "Windows only partially supports umasks and chmod.",
+    )
+    def test_custom_app_directory_creation_error_handling(self):
+        """The error is displayed to the user in case of OSError."""
+        args = [
+            "startapp",
+            "my_app",
+            "project_dir/my_app",
+        ]
+        # Create a read-only parent directory.
+        os.makedirs(
+            os.path.join(self.test_dir, "project_dir"), exist_ok=True, mode=0o200
+        )
+        testapp_dir = os.path.join(self.test_dir, "project_dir", "my_app")
+        out, err = self.run_django_admin(args)
+        self.assertNoOutput(out)
+        self.assertOutput(
+            err,
+            "Permission denied",
+        )
+        self.assertFalse(os.path.exists(testapp_dir))
+
 
 class DiffSettings(AdminScriptTestCase):
     """Tests for diffsettings management command."""