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#!/usr/bin/env nix-shell
#!nix-shell update-luarocks-shell.nix -i python3
# format:
# $ nix run nixpkgs.python3Packages.black -c black update.py
# type-check:
# $ nix run nixpkgs.python3Packages.mypy -c mypy update.py
# linted:
# $ nix run nixpkgs.python3Packages.flake8 -c flake8 --ignore E501,E265,E402 update.py
import inspect
import os
import tempfile
import shutil
from dataclasses import dataclass
import subprocess
import csv
import logging
import textwrap
from multiprocessing.dummy import Pool
from typing import List, Tuple
from pathlib import Path
log = logging.getLogger()
log.addHandler(logging.StreamHandler())
ROOT = Path(os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))).parent.parent
from pluginupdate import Editor, update_plugins, PluginDesc, CleanEnvironment, LOG_LEVELS, Cache
PKG_LIST="maintainers/scripts/luarocks-packages.csv"
TMP_FILE="$(mktemp)"
GENERATED_NIXFILE="pkgs/development/lua-modules/generated-packages.nix"
LUAROCKS_CONFIG="$NIXPKGS_PATH/maintainers/scripts/luarocks-config.lua"
HEADER = """
/* {GENERATED_NIXFILE} is an auto-generated file -- DO NOT EDIT!
Regenerate it with:
nixpkgs$ ./maintainers/scripts/update-luarocks-packages
You can customize the generated packages in pkgs/development/lua-modules/overrides.nix
*/
""".format(GENERATED_NIXFILE=GENERATED_NIXFILE)
FOOTER="""
}
/* GENERATED - do not edit this file */
"""
@dataclass
class LuaPlugin:
name: str
version: str
server: str
luaversion: str
maintainers: str
@property
def normalized_name(self) -> str:
return self.name.replace(".", "-")
# rename Editor to LangUpdate/ EcosystemUpdater
class LuaEditor(Editor):
def get_current_plugins(self):
return []
def load_plugin_spec(self, input_file) -> List[LuaPlugin]:
luaPackages = []
csvfilename=input_file
log.info("Loading package descriptions from %s", csvfilename)
with open(csvfilename, newline='') as csvfile:
reader = csv.DictReader(csvfile,)
for row in reader:
# name,server,version,luaversion,maintainers
plugin = LuaPlugin(**row)
luaPackages.append(plugin)
return luaPackages
def generate_nix(
self,
results: List[Tuple[LuaPlugin, str]],
outfilename: str
):
with tempfile.NamedTemporaryFile("w+") as f:
f.write(HEADER)
header2 = textwrap.dedent(
# header2 = inspect.cleandoc(
"""
{ self, stdenv, lib, fetchurl, fetchgit, ... } @ args:
self: super:
with self;
{
""")
f.write(header2)
for (plugin, nix_expr) in results:
f.write(f"{plugin.normalized_name} = {nix_expr}")
f.write(FOOTER)
f.flush()
# if everything went fine, move the generated file to its destination
# using copy since move doesn't work across disks
shutil.copy(f.name, outfilename)
print(f"updated {outfilename}")
@property
def attr_path(self):
return "luaPackages"
def get_update(self, input_file: str, outfile: str, proc: int):
_prefetch = generate_pkg_nix
def update() -> dict:
plugin_specs = self.load_plugin_spec(input_file)
sorted_plugin_specs = sorted(plugin_specs, key=lambda v: v.name.lower())
try:
pool = Pool(processes=proc)
results = pool.map(_prefetch, sorted_plugin_specs)
finally:
pass
self.generate_nix(results, outfile)
redirects = []
return redirects
return update
def rewrite_input(self, input_file: str, *args, **kwargs):
# vim plugin reads the file before update but that shouldn't be our case
# not implemented yet
# fieldnames = ['name', 'server', 'version', 'luaversion', 'maintainers']
# input_file = "toto.csv"
# with open(input_file, newline='') as csvfile:
# writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
# writer.writeheader()
# for row in reader:
# # name,server,version,luaversion,maintainers
# plugin = LuaPlugin(**row)
# luaPackages.append(plugin)
pass
def generate_pkg_nix(plug: LuaPlugin):
'''
Generate nix expression for a luarocks package
Our cache key associates "p.name-p.version" to its rockspec
'''
log.debug("Generating nix expression for %s", plug.name)
cmd = [ "luarocks", "nix", plug.name]
if plug.server:
cmd.append(f"--only-server={plug.server}")
if plug.maintainers:
cmd.append(f"--maintainers={plug.maintainers}")
if plug.version:
cmd.append(plug.version)
if plug.luaversion:
with CleanEnvironment():
local_pkgs = str(ROOT.resolve())
cmd2 = ["nix-build", "--no-out-link", local_pkgs, "-A", f"{plug.luaversion}"]
log.debug("running %s", ' '.join(cmd2))
lua_drv_path=subprocess.check_output(cmd2, text=True).strip()
cmd.append(f"--lua-dir={lua_drv_path}/bin")
log.debug("running %s", cmd)
output = subprocess.check_output(cmd, text=True)
return (plug, output)
def main():
editor = LuaEditor("lua", ROOT, '',
default_in = ROOT.joinpath(PKG_LIST),
default_out = ROOT.joinpath(GENERATED_NIXFILE)
)
parser = editor.create_parser()
args = parser.parse_args()
log.setLevel(LOG_LEVELS[args.debug])
update_plugins(editor, args)
if __name__ == "__main__":
main()
|
