use distlib inside the zipapp docker image

asottile · asottile · commit 18348f5d0dbb · 2023-05-17T18:58:11.000-04:00
diff --git a/testing/zipapp/Dockerfile b/testing/zipapp/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal
+FROM ubuntu:jammy
 RUN : \
     && apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -11,4 +11,4 @@ RUN : \
 ENV LANG=C.UTF-8 PATH=/venv/bin:$PATH
 RUN : \
     && python3 -mvenv /venv \
-    && pip install --no-cache-dir pip setuptools wheel no-manylinux --upgrade
+    && pip install --no-cache-dir pip distlib no-manylinux --upgrade
diff --git a/testing/zipapp/make b/testing/zipapp/make
@@ -4,7 +4,6 @@ from __future__ import annotations
 import argparse
 import base64
 import hashlib
-import importlib.resources
 import io
 import os.path
 import shutil
@@ -42,10 +41,17 @@ def _add_shim(dest: str) -> None:
     with zipfile.ZipFile(bio, 'w') as zipf:
         zipf.write(shim, arcname='__main__.py')
 
-    with open(os.path.join(dest, 'python.exe'), 'wb') as f:
-        f.write(importlib.resources.read_binary('distlib', 't32.exe'))
-        f.write(b'#!py.exe -3\n')
-        f.write(bio.getvalue())
+    with tempfile.TemporaryDirectory() as tmpdir:
+        _exit_if_retv(
+            'podman', 'run', '--rm', '--volume', f'{tmpdir}:/out:rw', IMG,
+            'cp', '/venv/lib/python3.10/site-packages/distlib/t32.exe', '/out',
+        )
+
+        with open(os.path.join(dest, 'python.exe'), 'wb') as f:
+            with open(os.path.join(tmpdir, 't32.exe'), 'rb') as t32:
+                f.write(t32.read())
+            f.write(b'#!py.exe -3\n')
+            f.write(bio.getvalue())
 
 
 def _write_cache_key(version: str, wheeldir: str, dest: str) -> None:
