mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-30 17:43:42 +00:00
69 lines
2.1 KiB
Python
Executable File
69 lines
2.1 KiB
Python
Executable File
#! /usr/bin/env nix-shell
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#! nix-shell -i python3 -p python3Packages.packaging python3Packages.debian
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import base64
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import gzip
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import textwrap
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from urllib import request
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from debian.deb822 import Packages
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from debian.debian_support import Version
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def packages():
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packages_url = 'https://packages.microsoft.com/repos/edge/dists/stable/main/binary-amd64/Packages'
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handle = request.urlopen(packages_url)
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return handle
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def latest_packages(packages: bytes):
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latest_packages: dict[str, Packages] = {}
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for package in Packages.iter_paragraphs(packages, use_apt_pkg=False):
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name: str = package['Package']
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if not name.startswith('microsoft-edge-'):
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continue
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channel = name.replace('microsoft-edge-', '')
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if channel not in latest_packages:
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latest_packages[channel] = package
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else:
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old_package = latest_packages[channel]
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if old_package.get_version() < package.get_version(): # type: ignore
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latest_packages[channel] = package
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return latest_packages
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def nix_expressions(latest: dict[str, Packages]):
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channel_strs: list[str] = []
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for channel, package in latest.items():
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print(f"Processing {channel} {package['Version']}")
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match = Version.re_valid_version.match(package['Version'])
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assert match is not None
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version = match.group('upstream_version')
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revision = match.group('debian_revision')
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sri = 'sha256-' + \
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base64.b64encode(bytes.fromhex(package['SHA256'])).decode('ascii')
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channel_str = textwrap.dedent(
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f'''\
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{channel} = import ./browser.nix {{
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channel = "{channel}";
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version = "{version}";
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revision = "{revision}";
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sha256 = "{sri}";
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}};'''
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)
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channel_strs.append(channel_str)
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return channel_strs
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def write_expression():
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latest = latest_packages(packages())
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channel_strs = nix_expressions(latest)
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nix_expr = '{\n' + textwrap.indent('\n'.join(channel_strs), ' ') + '\n}'
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with open('default.nix', 'w') as f:
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f.write(nix_expr)
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write_expression()
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