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149 lines
3.4 KiB
Python
Executable File
149 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i python3 -p "python3.withPackages (ps: [ ps.beautifulsoup4 ps.requests ])"
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"""
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Update the gildas package in nixpkgs.
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"""
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import re
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import subprocess
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import requests
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import os
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from bs4 import BeautifulSoup
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def to_version(srcVersion):
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"""
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Convert the source version to the package version
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This function converts the source version from the format "apr25a"
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to "20250401_a".
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"""
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months = {
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"jan": "01",
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"feb": "02",
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"mar": "03",
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"apr": "04",
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"may": "05",
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"jun": "06",
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"jul": "07",
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"aug": "08",
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"sep": "09",
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"oct": "10",
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"nov": "11",
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"dec": "12",
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}
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month = srcVersion[0:3]
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year = srcVersion[3:5]
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revision = srcVersion[5:6]
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return f"20{year}{months[month]}01_{revision}"
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def get_srcVersion():
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"""
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Get the available source versions from the gildas website
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"""
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srcVersions = []
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response = requests.get("https://www.iram.fr/~gildas/dist/index.html")
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soup = BeautifulSoup(response.text, "html.parser")
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pattern = r"^gildas-src-([a-z]{3}\d{2}[a-z])\.tar\.xz$"
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for link in soup.find_all("a"):
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href = link["href"]
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match = re.search(pattern, href)
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if match:
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srcVersions.append(match.group(1))
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return srcVersions
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def find_latest(srcVersions):
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"""
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Return the latest source version from a list
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"""
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latestVersion = ""
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for srcVersion in srcVersions:
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version = to_version(srcVersion)
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if version > latestVersion:
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latest = srcVersion
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return latest
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def get_hash(srcVersion):
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"""
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Get the hash of a given source versionn
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"""
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url = f"http://www.iram.fr/~gildas/dist/gildas-src-{srcVersion}.tar.xz"
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srcHash = subprocess.check_output(["nix-prefetch-url", url]).decode().strip()
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# Convert to SRI representation
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srcSRIHash = (
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subprocess.check_output(["nix-hash", "--to-sri", "--type", "sha256", srcHash])
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.decode()
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.strip()
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)
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return srcSRIHash
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def get_package_attribute(attr):
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"""
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Get a package attribute
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"""
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pattern = attr + r'\s*=\s*"([^"]+)";'
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with open("package.nix", "r") as f:
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for line in f:
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match = re.search(pattern, line)
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if match:
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return match.group(1)
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def update_package(srcVersion, version, srcHash):
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"""
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Update the package
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"""
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current_srcVersion = get_package_attribute("srcVersion")
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current_version = get_package_attribute("version")
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current_hash = get_package_attribute("hash")
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with open("package.nix", "r") as f:
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lines = f.readlines()
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with open("package.nix", "w") as f:
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for line in lines:
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line = line.replace(current_srcVersion, srcVersion)
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line = line.replace(current_version, version)
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line = line.replace(current_hash, srcHash)
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f.write(line)
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def main():
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os.chdir(os.path.dirname(os.path.abspath(__file__))) # allow to run from anywhere
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latest = find_latest(get_srcVersion())
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if latest != get_package_attribute("srcVersion"):
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srcVersion = latest
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version = to_version(srcVersion)
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print(f"Updating gildas to {version}...")
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srcHash = get_hash(srcVersion)
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update_package(srcVersion, version, srcHash)
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print("done")
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else:
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print("Already up to date")
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if __name__ == "__main__":
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main()
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