Add microvenv support for non-windows platforms

pythonFiles/create_conda.py

@@ -9,7 +9,7 @@
 from typing import Optional, Sequence, Union
 
 CONDA_ENV_NAME = ".conda"
-CWD = pathlib.PurePath(os.getcwd())
+CWD = pathlib.Path.cwd()
 
 
 class VenvError(Exception):

pythonFiles/create_microvenv.py

@@ -0,0 +1,97 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+import argparse
+import os
+import pathlib
+import subprocess
+import sys
+import urllib.request as url_lib
+from typing import Optional, Sequence
+
+VENV_NAME = ".venv"
+LIB_ROOT = pathlib.Path(__file__).parent / "lib" / "python"
+CWD = pathlib.Path.cwd()
+
+
+class MicroVenvError(Exception):
+    pass
+
+
+def run_process(args: Sequence[str], error_message: str) -> None:
+    try:
+        print("Running: " + " ".join(args))
+        subprocess.run(args, cwd=os.getcwd(), check=True)
+    except subprocess.CalledProcessError:
+        raise MicroVenvError(error_message)
+
+
+def parse_args(argv: Sequence[str]) -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument(
+        "--install-pip",
+        action="store_true",
+        default=False,
+        help="Install pip into the virtual environment.",
+    )
+
+    parser.add_argument(
+        "--name",
+        default=VENV_NAME,
+        type=str,
+        help="Name of the virtual environment.",
+        metavar="NAME",
+        action="store",
+    )
+    return parser.parse_args(argv)
+
+
+def create_microvenv(name: str):
+    run_process(
+        [sys.executable, os.fspath(LIB_ROOT / "microvenv.py"), name],
+        "CREATE_MICROVENV.MICROVENV_FAILED_CREATION",
+    )
+
+
+def download_pip_pyz(name: str):
+    url = "https://bootstrap.pypa.io/pip/pip.pyz"
+    print("CREATE_MICROVENV.DOWNLOADING_PIP")
+
+    try:
+        with url_lib.urlopen(url) as response:
+            pip_pyz_path = os.fspath(CWD / name / "pip.pyz")
+            with open(pip_pyz_path, "wb") as out_file:
+                data = response.read()
+                out_file.write(data)
+                out_file.flush()
+    except Exception:
+        raise MicroVenvError("CREATE_MICROVENV.DOWNLOAD_PIP_FAILED")
+
+
+def install_pip(name: str):
+    pip_pyz_path = os.fspath(CWD / name / "pip.pyz")
+    executable = os.fspath(CWD / name / "bin" / "python")
+    print("CREATE_MICROVENV.INSTALLING_PIP")
+    run_process(
+        [executable, pip_pyz_path, "install", "pip"],
+        "CREATE_MICROVENV.INSTALL_PIP_FAILED",
+    )
+
+
+def main(argv: Optional[Sequence[str]] = None) -> None:
+    if argv is None:
+        argv = []
+    args = parse_args(argv)
+
+    print("CREATE_MICROVENV.CREATING_MICROVENV")
+    create_microvenv(args.name)
+    print("CREATE_MICROVENV.CREATED_MICROVENV")
+
+    if args.install_pip:
+        download_pip_pyz(args.name)
+        install_pip(args.name)
+
+
+if __name__ == "__main__":
+    main(sys.argv[1:])

pythonFiles/create_venv.py

@@ -10,7 +10,8 @@
 from typing import List, Optional, Sequence, Union
 
 VENV_NAME = ".venv"
-CWD = pathlib.PurePath(os.getcwd())
+CWD = pathlib.Path.cwd()
+MICROVENV_SCRIPT_PATH = pathlib.Path(__file__).parent / "create_microvenv.py"
 
 
 class VenvError(Exception):
@@ -130,22 +131,39 @@ def main(argv: Optional[Sequence[str]] = None) -> None:
         argv = []
     args = parse_args(argv)
 
+    use_micro_venv = False
     if not is_installed("venv"):
-        raise VenvError("CREATE_VENV.VENV_NOT_FOUND")
+        if sys.platform == "win32":
+            raise VenvError("CREATE_VENV.VENV_NOT_FOUND")
+        else:
+            use_micro_venv = True
 
     pip_installed = is_installed("pip")
     deps_needed = args.requirements or args.extras or args.toml
-    if deps_needed and not pip_installed:
+    if deps_needed and not pip_installed and not use_micro_venv:
         raise VenvError("CREATE_VENV.PIP_NOT_FOUND")
 
     if venv_exists(args.name):
         venv_path = get_venv_path(args.name)
         print(f"EXISTING_VENV:{venv_path}")
     else:
-        run_process(
-            [sys.executable, "-m", "venv", args.name],
-            "CREATE_VENV.VENV_FAILED_CREATION",
-        )
+        if use_micro_venv:
+            run_process(
+                [
+                    sys.executable,
+                    os.fspath(MICROVENV_SCRIPT_PATH),
+                    "--install-pip",
+                    "--name",
+                    args.name,
+                ],
+                "CREATE_VENV.MICROVENV_FAILED_CREATION",
+            )
+            pip_installed = True
+        else:
+            run_process(
+                [sys.executable, "-m", "venv", args.name],
+                "CREATE_VENV.VENV_FAILED_CREATION",
+            )
         venv_path = get_venv_path(args.name)
         print(f"CREATED_VENV:{venv_path}")
         if args.git_ignore:

pythonFiles/tests/test_create_microvenv.py

@@ -0,0 +1,60 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+import importlib
+import os
+import sys
+
+import create_microvenv
+import pytest
+
+
+def test_create_microvenv():
+    importlib.reload(create_microvenv)
+    run_process_called = False
+
+    def run_process(args, error_message):
+        nonlocal run_process_called
+        run_process_called = True
+        assert args == [
+            sys.executable,
+            os.fspath(create_microvenv.LIB_ROOT / "microvenv.py"),
+            create_microvenv.VENV_NAME,
+        ]
+        assert error_message == "CREATE_MICROVENV.MICROVENV_FAILED_CREATION"
+
+    create_microvenv.run_process = run_process
+
+    create_microvenv.main()
+    assert run_process_called == True
+
+
+def test_create_microvenv_with_pip():
+    importlib.reload(create_microvenv)
+
+    download_pip_pyz_called = False
+
+    def download_pip_pyz(name):
+        nonlocal download_pip_pyz_called
+        download_pip_pyz_called = True
+        assert name == create_microvenv.VENV_NAME
+
+    create_microvenv.download_pip_pyz = download_pip_pyz
+
+    run_process_called = False
+
+    def run_process(args, error_message):
+        if "install" in args and "pip" in args:
+            nonlocal run_process_called
+            run_process_called = True
+            pip_pyz_path = os.fspath(
+                create_microvenv.CWD / create_microvenv.VENV_NAME / "pip.pyz"
+            )
+            executable = os.fspath(
+                create_microvenv.CWD / create_microvenv.VENV_NAME / "bin" / "python"
+            )
+            assert args == [executable, pip_pyz_path, "install", "pip"]
+            assert error_message == "CREATE_MICROVENV.INSTALL_PIP_FAILED"
+
+    create_microvenv.run_process = run_process
+    create_microvenv.main(["--install-pip"])

pythonFiles/tests/test_create_venv.py

@@ -2,13 +2,46 @@
 # Licensed under the MIT License.
 
 import importlib
+import os
 import sys
 
 import create_venv
 import pytest
 
 
-def test_venv_not_installed():
+@pytest.mark.skipif(
+    sys.platform == "win32", reason="Windows does not have micro venv fallback."
+)
+def test_venv_not_installed_unix():
+    importlib.reload(create_venv)
+    create_venv.is_installed = lambda module: module != "venv"
+    run_process_called = False
+
+    def run_process(args, error_message):
+        nonlocal run_process_called
+        if "--install-pip" in args:
+            run_process_called = True
+            assert args == [
+                sys.executable,
+                os.fspath(create_venv.MICROVENV_SCRIPT_PATH),
+                "--install-pip",
+                "--name",
+                ".test_venv",
+            ]
+            assert error_message == "CREATE_VENV.MICROVENV_FAILED_CREATION"
+
+    create_venv.run_process = run_process
+
+    create_venv.main(["--name", ".test_venv"])
+
+    # run_process is called when the venv does not exist
+    assert run_process_called == True
+
+
+@pytest.mark.skipif(
+    sys.platform != "win32", reason="Windows does not have microvenv fallback."
+)
+def test_venv_not_installed_windows():
     importlib.reload(create_venv)
     create_venv.is_installed = lambda module: module != "venv"
     with pytest.raises(create_venv.VenvError) as e:

requirements.in

@@ -5,3 +5,6 @@
 
 # Unittest test adapter
 typing-extensions==4.5.0
+
+# Fallback env creator for debian
+microvenv

requirements.txt

@@ -1,9 +1,13 @@
 #
-# This file is autogenerated by pip-compile with python 3.7
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.7
+# by the following command:
 #
 #    pip-compile --generate-hashes requirements.in
 #
+microvenv==2023.2.0 \
+    --hash=sha256:5b46296d6a65992946da504bd9e724a5becf5c256091f2f9383e5b4e9f567f23 \
+    --hash=sha256:a07e88a8fb5ee90219b86dd90095cb5646462d45d30285ea3b1a3c7cf33616d3
+    # via -r requirements.in
 typing-extensions==4.5.0 \
     --hash=sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb \
     --hash=sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4

src/client/common/utils/localize.ts

@@ -438,7 +438,11 @@ export namespace CreateEnv {
 
     export namespace Venv {
         export const creating = l10n.t('Creating venv...');
+        export const creatingMicrovenv = l10n.t('Creating microvenv...');
         export const created = l10n.t('Environment created...');
+        export const existing = l10n.t('Using existing environment...');
+        export const downloadingPip = l10n.t('Downloading pip...');
+        export const installingPip = l10n.t('Installing pip...');
         export const upgradingPip = l10n.t('Upgrading pip...');
         export const installingPackages = l10n.t('Installing packages...');
         export const errorCreatingEnvironment = l10n.t('Error while creating virtual environment.');