mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-11-16 18:37:04 +03:00
17ea94881f
This script is heavily based on the script used to update all python libraries at pkgs/development/interpreters/python/update-python-libraries/update-python-libraries.py The Octave Packages' website uses YAML as their basis, so we must reformat to use YAML instead of JSON.
469 lines
15 KiB
Plaintext
Executable File
469 lines
15 KiB
Plaintext
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell update-octave-shell.nix -i python3
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"""
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Update a Octave package expression by passing in the `.nix` file, or the directory containing it.
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You can pass in multiple files or paths.
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You'll likely want to use
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``
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$ ./update-octave-libraries ../../pkgs/development/octave-modules/**/default.nix
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``
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to update all non-pinned libraries in that folder.
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"""
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import argparse
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import os
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import pathlib
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import re
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import requests
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import yaml
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from concurrent.futures import ThreadPoolExecutor as Pool
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from packaging.version import Version as _Version
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from packaging.version import InvalidVersion
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from packaging.specifiers import SpecifierSet
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import collections
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import subprocess
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import tempfile
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INDEX = "https://raw.githubusercontent.com/gnu-octave/packages/main/packages"
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"""url of Octave packages' source on GitHub"""
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EXTENSIONS = ['tar.gz', 'tar.bz2', 'tar', 'zip']
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"""Permitted file extensions. These are evaluated from left to right and the first occurance is returned."""
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PRERELEASES = False
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GIT = "git"
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NIXPGKS_ROOT = subprocess.check_output(["git", "rev-parse", "--show-toplevel"]).decode('utf-8').strip()
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import logging
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logging.basicConfig(level=logging.INFO)
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class Version(_Version, collections.abc.Sequence):
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def __init__(self, version):
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super().__init__(version)
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# We cannot use `str(Version(0.04.21))` because that becomes `0.4.21`
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# https://github.com/avian2/unidecode/issues/13#issuecomment-354538882
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self.raw_version = version
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def __getitem__(self, i):
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return self._version.release[i]
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def __len__(self):
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return len(self._version.release)
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def __iter__(self):
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yield from self._version.release
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def _get_values(attribute, text):
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"""Match attribute in text and return all matches.
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:returns: List of matches.
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"""
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regex = '{}\s+=\s+"(.*)";'.format(attribute)
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regex = re.compile(regex)
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values = regex.findall(text)
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return values
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def _get_unique_value(attribute, text):
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"""Match attribute in text and return unique match.
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:returns: Single match.
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"""
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values = _get_values(attribute, text)
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n = len(values)
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if n > 1:
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raise ValueError("found too many values for {}".format(attribute))
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elif n == 1:
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return values[0]
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else:
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raise ValueError("no value found for {}".format(attribute))
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def _get_line_and_value(attribute, text):
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"""Match attribute in text. Return the line and the value of the attribute."""
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regex = '({}\s+=\s+"(.*)";)'.format(attribute)
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regex = re.compile(regex)
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value = regex.findall(text)
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n = len(value)
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if n > 1:
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raise ValueError("found too many values for {}".format(attribute))
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elif n == 1:
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return value[0]
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else:
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raise ValueError("no value found for {}".format(attribute))
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def _replace_value(attribute, value, text):
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"""Search and replace value of attribute in text."""
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old_line, old_value = _get_line_and_value(attribute, text)
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new_line = old_line.replace(old_value, value)
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new_text = text.replace(old_line, new_line)
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return new_text
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def _fetch_page(url):
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r = requests.get(url)
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if r.status_code == requests.codes.ok:
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return list(yaml.safe_load_all(r.content))[0]
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else:
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raise ValueError("request for {} failed".format(url))
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def _fetch_github(url):
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headers = {}
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token = os.environ.get('GITHUB_API_TOKEN')
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if token:
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headers["Authorization"] = f"token {token}"
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r = requests.get(url, headers=headers)
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if r.status_code == requests.codes.ok:
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return r.json()
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else:
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raise ValueError("request for {} failed".format(url))
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SEMVER = {
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'major' : 0,
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'minor' : 1,
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'patch' : 2,
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}
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def _determine_latest_version(current_version, target, versions):
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"""Determine latest version, given `target`, returning the more recent version.
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"""
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current_version = Version(current_version)
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def _parse_versions(versions):
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for v in versions:
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try:
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yield Version(v)
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except InvalidVersion:
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pass
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versions = _parse_versions(versions)
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index = SEMVER[target]
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ceiling = list(current_version[0:index])
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if len(ceiling) == 0:
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ceiling = None
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else:
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ceiling[-1]+=1
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ceiling = Version(".".join(map(str, ceiling)))
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# We do not want prereleases
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versions = SpecifierSet(prereleases=PRERELEASES).filter(versions)
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if ceiling is not None:
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versions = SpecifierSet(f"<{ceiling}").filter(versions)
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return (max(sorted(versions))).raw_version
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def _get_latest_version_octave_packages(package, extension, current_version, target):
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"""Get latest version and hash from Octave Packages."""
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url = "{}/{}.yaml".format(INDEX, package)
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yaml = _fetch_page(url)
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versions = list(map(lambda pv: pv['id'], yaml['versions']))
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version = _determine_latest_version(current_version, target, versions)
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try:
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releases = [v if v['id'] == version else None for v in yaml['versions']]
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except KeyError as e:
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raise KeyError('Could not find version {} for {}'.format(version, package)) from e
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for release in releases:
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if release['url'].endswith(extension):
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sha256 = release['sha256']
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break
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else:
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sha256 = None
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return version, sha256, None
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def _get_latest_version_github(package, extension, current_version, target):
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def strip_prefix(tag):
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return re.sub("^[^0-9]*", "", tag)
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def get_prefix(string):
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matches = re.findall(r"^([^0-9]*)", string)
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return next(iter(matches), "")
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# when invoked as an updateScript, UPDATE_NIX_ATTR_PATH will be set
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# this allows us to work with packages which live outside of octave-modules
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attr_path = os.environ.get("UPDATE_NIX_ATTR_PATH", f"octavePackages.{package}")
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try:
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homepage = subprocess.check_output(
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["nix", "eval", "-f", f"{NIXPGKS_ROOT}/default.nix", "--raw", f"{attr_path}.src.meta.homepage"])\
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.decode('utf-8')
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except Exception as e:
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raise ValueError(f"Unable to determine homepage: {e}")
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owner_repo = homepage[len("https://github.com/"):] # remove prefix
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owner, repo = owner_repo.split("/")
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url = f"https://api.github.com/repos/{owner}/{repo}/releases"
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all_releases = _fetch_github(url)
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releases = list(filter(lambda x: not x['prerelease'], all_releases))
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if len(releases) == 0:
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raise ValueError(f"{homepage} does not contain any stable releases")
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versions = map(lambda x: strip_prefix(x['tag_name']), releases)
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version = _determine_latest_version(current_version, target, versions)
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release = next(filter(lambda x: strip_prefix(x['tag_name']) == version, releases))
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prefix = get_prefix(release['tag_name'])
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try:
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sha256 = subprocess.check_output(["nix-prefetch-url", "--type", "sha256", "--unpack", f"{release['tarball_url']}"], stderr=subprocess.DEVNULL)\
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.decode('utf-8').strip()
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except:
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# this may fail if they have both a branch and a tag of the same name, attempt tag name
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tag_url = str(release['tarball_url']).replace("tarball","tarball/refs/tags")
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sha256 = subprocess.check_output(["nix-prefetch-url", "--type", "sha256", "--unpack", tag_url], stderr=subprocess.DEVNULL)\
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.decode('utf-8').strip()
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return version, sha256, prefix
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def _get_latest_version_git(package, extension, current_version, target):
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"""NOTE: Unimplemented!"""
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# attr_path = os.environ.get("UPDATE_NIX_ATTR_PATH", f"octavePackages.{package}")
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# try:
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# download_url = subprocess.check_output(
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# ["nix", "--extra-experimental-features", "nix-command", "eval", "-f", f"{NIXPGKS_ROOT}/default.nix", "--raw", f"{attr_path}.src.url"])\
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# .decode('utf-8')
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# except Exception as e:
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# raise ValueError(f"Unable to determine download link: {e}")
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# with tempfile.TemporaryDirectory(prefix=attr_path) as new_clone_location:
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# subprocess.run(["git", "clone", download_url, new_clone_location])
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# newest_commit = subprocess.check_output(
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# ["git" "rev-parse" "$(git branch -r)" "|" "tail" "-n" "1"]).decode('utf-8')
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pass
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FETCHERS = {
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'fetchFromGitHub' : _get_latest_version_github,
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'fetchurl' : _get_latest_version_octave_packages,
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'fetchgit' : _get_latest_version_git,
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}
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DEFAULT_SETUPTOOLS_EXTENSION = 'tar.gz'
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FORMATS = {
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'setuptools' : DEFAULT_SETUPTOOLS_EXTENSION,
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}
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def _determine_fetcher(text):
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# Count occurrences of fetchers.
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nfetchers = sum(text.count('src = {}'.format(fetcher)) for fetcher in FETCHERS.keys())
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if nfetchers == 0:
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raise ValueError("no fetcher.")
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elif nfetchers > 1:
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raise ValueError("multiple fetchers.")
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else:
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# Then we check which fetcher to use.
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for fetcher in FETCHERS.keys():
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if 'src = {}'.format(fetcher) in text:
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return fetcher
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def _determine_extension(text, fetcher):
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"""Determine what extension is used in the expression.
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If we use:
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- fetchPypi, we check if format is specified.
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- fetchurl, we determine the extension from the url.
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- fetchFromGitHub we simply use `.tar.gz`.
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"""
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if fetcher == 'fetchurl':
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url = _get_unique_value('url', text)
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extension = os.path.splitext(url)[1]
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elif fetcher == 'fetchFromGitHub' or fetcher == 'fetchgit':
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if "fetchSubmodules" in text:
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raise ValueError("fetchFromGitHub fetcher doesn't support submodules")
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extension = "tar.gz"
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return extension
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def _update_package(path, target):
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# Read the expression
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with open(path, 'r') as f:
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text = f.read()
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# Determine pname. Many files have more than one pname
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pnames = _get_values('pname', text)
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# Determine version.
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version = _get_unique_value('version', text)
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# First we check how many fetchers are mentioned.
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fetcher = _determine_fetcher(text)
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extension = _determine_extension(text, fetcher)
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# Attempt a fetch using each pname, e.g. backports-zoneinfo vs backports.zoneinfo
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successful_fetch = False
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for pname in pnames:
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if fetcher == "fetchgit":
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logging.warning(f"You must update {pname} MANUALLY!")
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return { 'path': path, 'target': target, 'pname': pname,
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'old_version': version, 'new_version': version }
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try:
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new_version, new_sha256, prefix = FETCHERS[fetcher](pname, extension, version, target)
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successful_fetch = True
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break
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except ValueError:
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continue
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if not successful_fetch:
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raise ValueError(f"Unable to find correct package using these pnames: {pnames}")
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if new_version == version:
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logging.info("Path {}: no update available for {}.".format(path, pname))
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return False
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elif Version(new_version) <= Version(version):
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raise ValueError("downgrade for {}.".format(pname))
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if not new_sha256:
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raise ValueError("no file available for {}.".format(pname))
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text = _replace_value('version', new_version, text)
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# hashes from pypi are 16-bit encoded sha256's, normalize it to sri to avoid merge conflicts
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# sri hashes have been the default format since nix 2.4+
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sri_hash = subprocess.check_output(["nix", "--extra-experimental-features", "nix-command", "hash", "to-sri", "--type", "sha256", new_sha256]).decode('utf-8').strip()
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# fetchers can specify a sha256, or a sri hash
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try:
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text = _replace_value('sha256', sri_hash, text)
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except ValueError:
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text = _replace_value('hash', sri_hash, text)
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if fetcher == 'fetchFromGitHub':
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# in the case of fetchFromGitHub, it's common to see `rev = version;` or `rev = "v${version}";`
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# in which no string value is meant to be substituted. However, we can just overwrite the previous value.
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regex = '(rev\s+=\s+[^;]*;)'
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regex = re.compile(regex)
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matches = regex.findall(text)
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n = len(matches)
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if n == 0:
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raise ValueError("Unable to find rev value for {}.".format(pname))
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else:
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# forcefully rewrite rev, incase tagging conventions changed for a release
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match = matches[0]
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text = text.replace(match, f'rev = "refs/tags/{prefix}${{version}}";')
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# incase there's no prefix, just rewrite without interpolation
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text = text.replace('"${version}";', 'version;')
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with open(path, 'w') as f:
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f.write(text)
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logging.info("Path {}: updated {} from {} to {}".format(path, pname, version, new_version))
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result = {
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'path' : path,
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'target': target,
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'pname': pname,
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'old_version' : version,
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'new_version' : new_version,
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#'fetcher' : fetcher,
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}
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return result
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def _update(path, target):
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# We need to read and modify a Nix expression.
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if os.path.isdir(path):
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path = os.path.join(path, 'default.nix')
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# If a default.nix does not exist, we quit.
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if not os.path.isfile(path):
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logging.info("Path {}: does not exist.".format(path))
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return False
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# If file is not a Nix expression, we quit.
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if not path.endswith(".nix"):
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logging.info("Path {}: does not end with `.nix`.".format(path))
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return False
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try:
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return _update_package(path, target)
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except ValueError as e:
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logging.warning("Path {}: {}".format(path, e))
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return False
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def _commit(path, pname, old_version, new_version, pkgs_prefix="octave: ", **kwargs):
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"""Commit result.
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"""
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msg = f'{pkgs_prefix}{pname}: {old_version} -> {new_version}'
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try:
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subprocess.check_call([GIT, 'add', path])
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subprocess.check_call([GIT, 'commit', '-m', msg])
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except subprocess.CalledProcessError as e:
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subprocess.check_call([GIT, 'checkout', path])
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raise subprocess.CalledProcessError(f'Could not commit {path}') from e
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return True
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def main():
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epilog = """
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environment variables:
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GITHUB_API_TOKEN\tGitHub API token used when updating github packages
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"""
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parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, epilog=epilog)
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parser.add_argument('package', type=str, nargs='+')
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parser.add_argument('--target', type=str, choices=SEMVER.keys(), default='major')
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parser.add_argument('--commit', action='store_true', help='Create a commit for each package update')
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parser.add_argument('--use-pkgs-prefix', action='store_true', help='Use octavePackages.${pname}: instead of octave: ${pname}: when making commits')
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args = parser.parse_args()
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target = args.target
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packages = list(map(os.path.abspath, args.package))
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logging.info("Updating packages...")
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# Use threads to update packages concurrently
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with Pool() as p:
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results = list(filter(bool, p.map(lambda pkg: _update(pkg, target), packages)))
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logging.info("Finished updating packages.")
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commit_options = {}
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if args.use_pkgs_prefix:
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logging.info("Using octavePackages. prefix for commits")
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commit_options["pkgs_prefix"] = "octavePackages."
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# Commits are created sequentially.
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if args.commit:
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logging.info("Committing updates...")
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# list forces evaluation
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list(map(lambda x: _commit(**x, **commit_options), results))
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logging.info("Finished committing updates")
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count = len(results)
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logging.info("{} package(s) updated".format(count))
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if __name__ == '__main__':
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main()
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