73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
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#!/usr/bin/env nix-shell
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#!nix-shell -p nix -p python3 -p git -i python
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# USAGE - just run the script: ./update.py
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# When editing this file, make also sure it passes the mypy typecheck
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# and is formatted with yapf.
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import urllib.request
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import json
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import tempfile
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import subprocess
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import fileinput
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import re
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from pathlib import Path
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def sh(*args: str) -> str:
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out = subprocess.check_output(list(args))
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return out.strip().decode("utf-8")
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def prefetch_github(owner: str, repo: str, ref: str) -> str:
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return sh("nix-prefetch-url", "--unpack",
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f"https://github.com/{owner}/{repo}/archive/{ref}.tar.gz")
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def main() -> None:
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url = "https://api.github.com/repos/radare/radare2/releases/latest"
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with urllib.request.urlopen(url) as response:
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release = json.load(response) # type: ignore
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version = release["tag_name"]
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with tempfile.TemporaryDirectory() as dirname:
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def git(*args: str) -> str:
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return sh("git", "-C", dirname, *args)
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git("clone", "--branch", version, "https://github.com/radare/radare2",
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".")
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sha256 = prefetch_github("radare", "radare2", version)
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nix_file = str(Path(__file__).parent.joinpath("default.nix"))
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cs_tip = None
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with open(Path(dirname).joinpath("shlr", "Makefile")) as makefile:
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for l in makefile:
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match = re.match("CS_TIP=(\S+)", l)
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if match:
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cs_tip = match.group(1)
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assert cs_tip is not None
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cs_sha256 = prefetch_github("aquynh", "capstone", cs_tip)
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in_block = False
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with fileinput.FileInput(nix_file, inplace=True) as f:
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for l in f:
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if "#<generated>" in l:
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in_block = True
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print(f""" #<generated>
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# DO NOT EDIT! Automatically generated by ./update.py
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version_commit = "{git("rev-list", "--all", "--count")}";
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gittap = "{git("describe", "--tags", "--match", "[0-9]*")}";
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gittip = "{git("rev-parse", "HEAD")}";
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version = "{version}";
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sha256 = "{sha256}";
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cs_tip = "{cs_tip}";
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cs_sha256 = "{cs_sha256}";
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#</generated>""")
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elif "#</generated>" in l:
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in_block = False
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elif not in_block:
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print(l, end="")
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if __name__ == "__main__":
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main()
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