Add from_sdist script

cibuildwheel/from_sdist.py

@@ -0,0 +1,102 @@
+import argparse
+import subprocess
+import sys
+import tarfile
+import tempfile
+import textwrap
+from pathlib import Path
+
+from cibuildwheel.util import format_safe
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(
+        description=textwrap.dedent(
+            """
+            Build wheels from an sdist archive.
+
+            Extracts the sdist to a temp dir and calls cibuildwheel on the
+            resulting package directory. Note that cibuildwheel will be
+            invoked with its working directory as the package directory, so
+            options aside from --output-dir and --config-file are relative to
+            the package directory.
+            """,
+        ),
+        epilog="""Any further arguments will be passed on to cibuildwheel.""",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+
+    parser.add_argument(
+        "--output-dir",
+        default="wheelhouse",
+        help="""
+            Destination folder for the wheels. Default: wheelhouse.
+        """,
+    )
+
+    parser.add_argument(
+        "--config-file",
+        default="",
+        help="""
+            TOML config file. To refer to a file inside the sdist, use the
+            `{project}` or `{package}` placeholder. e.g. `--config-file
+            {project}/config/cibuildwheel.toml` Default: "", meaning the
+            pyproject.toml inside the sdist, if it exists.
+        """,
+    )
+
+    parser.add_argument(
+        "package",
+        help="""
+            Path to the sdist archive that you want wheels for. Must be a
+            tar.gz archive file.
+        """,
+    )
+
+    args, passthrough_args = parser.parse_known_args()
+
+    output_dir = Path(args.output_dir).resolve()
+
+    with tempfile.TemporaryDirectory(prefix="cibw-sdist-") as temp_dir_str:
+        temp_dir = Path(temp_dir_str)
+
+        with tarfile.open(args.package) as tar:
+            tar.extractall(path=temp_dir)
+
+        temp_dir_contents = list(temp_dir.iterdir())
+
+        if len(temp_dir_contents) != 1 or not temp_dir_contents[0].is_dir:
+            exit("invalid sdist: didn't contain a single dir")
+
+        project_dir = temp_dir_contents[0]
+
+        if args.config_file:
+            # expand the placeholders if they're used
+            config_file_path = format_safe(
+                args.config_file,
+                project=project_dir,
+                package=project_dir,
+            )
+            config_file = Path(config_file_path).resolve()
+        else:
+            config_file = None
+
+        exit(
+            subprocess.call(
+                [
+                    sys.executable,
+                    "-m",
+                    "cibuildwheel",
+                    *(["--config-file", str(config_file)] if config_file else []),
+                    "--output-dir",
+                    output_dir,
+                    *passthrough_args,
+                    ".",
+                ],
+                cwd=project_dir,
+            )
+        )
+
+
+if __name__ == "__main__":
+    main()