Add minimal frontend

This can be useful for testing purposes.

Signed-off-by: Stephen Finucane <stephen@that.guru>

src/pyproject_api/build.py

@@ -0,0 +1,69 @@
+import argparse
+import os
+import pathlib
+import sys
+
+from ._frontend import SdistResult, WheelResult
+from ._via_fresh_subprocess import SubprocessFrontend
+
+
+def main_parser() -> argparse.ArgumentParser:
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "srcdir",
+        type=pathlib.Path,
+        nargs="?",
+        default=pathlib.Path(os.getcwd()),
+        help="source directory (defaults to current directory)",
+    )
+    parser.add_argument(
+        "--sdist",
+        "-s",
+        dest="distributions",
+        action="append_const",
+        const="sdist",
+        default=[],
+        help="build a source distribution",
+    )
+    parser.add_argument(
+        "--wheel",
+        "-w",
+        dest="distributions",
+        action="append_const",
+        const="wheel",
+        help="build a wheel distribution",
+    )
+    parser.add_argument(
+        "--outdir",
+        "-o",
+        type=pathlib.Path,
+        help=f"output directory (defaults to {{srcdir}}{os.sep}dist)",
+    )
+    return parser
+
+
+def build(argv: list[str]) -> None:
+    parser = main_parser()
+    args = parser.parse_args(argv)
+
+    outdir = args.outdir or args.srcdir / "dist"
+    distributions = args.distributions or ["sdist", "wheel"]
+
+    frontend = SubprocessFrontend(*SubprocessFrontend.create_args_from_folder(args.srcdir)[:-1])
+    res: SdistResult | WheelResult
+
+    if "sdist" in distributions:
+        print("Building sdist...")
+        res = frontend.build_sdist(sdist_directory=outdir)
+        print(res.out)
+        print(res.err)
+
+    if "wheel" in distributions:
+        print("Building wheel...")
+        res = frontend.build_wheel(outdir)
+        print(res.out)
+        print(res.err)
+
+
+if __name__ == "__main__":
+    build(sys.argv[1:])

whitelist.txt

@@ -12,13 +12,15 @@ iwusr
 mktemp
 namelist
 nitpicky
+outdir
 prj
 py311
 py38
 pygments
 pyproject
 sdist
 setenv
+srcdir
 tmpdir
 toml
 tomli