97ebbdef91
Upstream Sapling does not maintain a Cargo.lock file, so Nixpkgs has its own. Teach the gen-deps.py script to update Nixpkgs' Cargo.lock whenever the Cargo.toml files change.
70 lines
2.4 KiB
Python
Executable File
70 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env nix-shell
|
|
#!nix-shell -i python3 -p cargo -p "python3.withPackages (ps: with ps; [ requests ])"
|
|
import json
|
|
import pathlib
|
|
import re
|
|
import tempfile
|
|
import os
|
|
import shutil
|
|
from hashlib import sha1
|
|
from struct import unpack
|
|
from subprocess import run
|
|
import subprocess
|
|
|
|
from requests import get
|
|
|
|
# Fetch the latest stable release metadata from GitHub
|
|
releaseMetadata = get("https://api.github.com/repos/facebook/sapling/releases/latest").json()
|
|
latestTag = releaseMetadata["tag_name"]
|
|
latestTarballURL = releaseMetadata["tarball_url"]
|
|
|
|
[_tarballHash, sourceDirectory] = run(
|
|
["nix-prefetch-url", "--print-path", "--unpack", latestTarballURL],
|
|
check=True,
|
|
text=True,
|
|
stdout=subprocess.PIPE,
|
|
).stdout.rstrip().splitlines()
|
|
|
|
def updateCargoLock():
|
|
with tempfile.TemporaryDirectory() as tempDir:
|
|
tempDir = pathlib.Path(tempDir)
|
|
|
|
# NOTE(strager): We cannot use shutil.tree because it copies the
|
|
# read-only permissions.
|
|
for dirpath, dirnames, filenames in os.walk(sourceDirectory):
|
|
relativeDirpath = os.path.relpath(dirpath, sourceDirectory)
|
|
for filename in filenames:
|
|
shutil.copy(os.path.join(dirpath, filename), tempDir / relativeDirpath / filename)
|
|
for dirname in dirnames:
|
|
os.mkdir(tempDir / relativeDirpath / dirname)
|
|
|
|
run(["cargo", "fetch"], check=True, cwd=tempDir / "eden" / "scm")
|
|
shutil.copy(tempDir / "eden" / "scm" / "Cargo.lock", "Cargo.lock")
|
|
|
|
updateCargoLock()
|
|
|
|
def nixPrefetchUrl(url):
|
|
return run(
|
|
["nix-prefetch-url", "--type", "sha256", url],
|
|
check=True,
|
|
text=True,
|
|
capture_output=True,
|
|
).stdout.rstrip()
|
|
|
|
|
|
# Fetch the `setup.py` source and look for instances of assets being downloaded
|
|
# from files.pythonhosted.org.
|
|
setupPy = (pathlib.Path(sourceDirectory) / "eden/scm/setup.py").read_text()
|
|
foundUrls = re.findall(r'(https://files\.pythonhosted\.org/packages/[^\s]+)"', setupPy)
|
|
|
|
dataDeps = {
|
|
"links": [{"url": url, "sha256": nixPrefetchUrl(url)} for url in foundUrls],
|
|
"version": latestTag,
|
|
# Find latest's git tag which corresponds to the Sapling version. Also
|
|
# needed is a hash of the version, so calculate that here. Taken from
|
|
# Sapling source `$root/eden/scm/setup_with_version.py`.
|
|
"versionHash": str(unpack(">Q", sha1(latestTag.encode("ascii")).digest()[:8])[0]),
|
|
}
|
|
|
|
open("deps.json", "w").write(json.dumps(dataDeps, indent=2, sort_keys=True) + "\n")
|