mirror of
https://github.com/d9pouces/id_configurator.git
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d9pouces
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
"""Build a minimal, offline, hand-rolled npm package and its registry
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metadata document, for integration-testing the `npm` module of
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id-configurator.
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No network access and no build backend (npm/node) is used: the tarball is a
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plain gzipped tar assembled with the standard library only, so this script
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can run in a minimal Python image with nothing installed.
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"""
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from __future__ import annotations
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import base64
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import hashlib
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import io
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import json
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import pathlib
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import tarfile
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PACKAGE = "idconfiguratortestpkg"
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VERSION = "0.0.1"
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TARBALL_NAME = f"{PACKAGE}-{VERSION}.tgz"
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OUT_DIR = pathlib.Path("/srv")
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PACKAGE_JSON = json.dumps({"name": PACKAGE, "version": VERSION})
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MARKER = "test-only package served by the id-configurator integration tests\n"
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def _add_file(archive: tarfile.TarFile, name: str, content: bytes) -> None:
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info = tarfile.TarInfo(name=f"package/{name}")
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info.size = len(content)
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archive.addfile(info, io.BytesIO(content))
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def build_tarball() -> bytes:
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buffer = io.BytesIO()
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with tarfile.open(fileobj=buffer, mode="w:gz") as archive:
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_add_file(archive, "package.json", PACKAGE_JSON.encode("utf-8"))
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_add_file(archive, "marker.txt", MARKER.encode("utf-8"))
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return buffer.getvalue()
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def write_registry_metadata(out_dir: pathlib.Path, tarball: bytes) -> None:
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# npm requires a fully-qualified tarball URL, so this bakes in a
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# placeholder that nginx's sub_filter rewrites to the real
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# https://<host used by the client>/ at request time (see
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# npm-repo.nginx.conf) - the host and port this fixture is actually
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# reached on aren't known at image-build time.
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sha1 = hashlib.sha1(tarball).hexdigest() # nosec B324
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sha512_b64 = base64.b64encode(hashlib.sha512(tarball).digest()).decode("ascii")
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metadata = {
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"name": PACKAGE,
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"dist-tags": {"latest": VERSION},
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"versions": {
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VERSION: {
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"name": PACKAGE,
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"version": VERSION,
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"dist": {
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"shasum": sha1,
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"integrity": f"sha512-{sha512_b64}",
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"tarball": f"__BASE_URL__/{TARBALL_NAME}",
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},
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}
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},
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}
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(out_dir / PACKAGE).write_text(json.dumps(metadata, indent=2), encoding="utf-8")
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def main() -> None:
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OUT_DIR.mkdir(parents=True, exist_ok=True)
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tarball = build_tarball()
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(OUT_DIR / TARBALL_NAME).write_bytes(tarball)
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write_registry_metadata(OUT_DIR, tarball)
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if __name__ == "__main__":
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main()
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