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#!/usr/bin/env nix-shell
#!nix-shell update-shell.nix -i python
import json
import subprocess
from concurrent.futures import ThreadPoolExecutor
from os import environ
from os.path import dirname, join
lockfile = json.load(open(join(environ["NVIM_TREESITTER"], "lockfile.json")))
configs = json.loads(
subprocess.check_output(
[
"nvim",
"--headless",
"-u",
"NONE",
"+lua io.write(vim.json.encode(require('nvim-treesitter.parsers').get_parser_configs()))",
"+quit!",
]
)
)
def generate_grammar(item):
lang, lock = item
cfg = configs.get(lang)
if not cfg:
return ""
info = cfg["install_info"]
url = info["url"]
rev = lock["revision"]
generated = f""" {lang} = buildGrammar {{
language = "{lang}";
version = "0.0.0+rev={rev[:7]}";
src = """
generated += subprocess.check_output(["nurl", url, rev, "--indent=4"], text=True)
generated += ";"
location = info.get("location")
if location:
generated += f"""
location = "{location}";"""
if info.get("requires_generate_from_grammar"):
generated += """
generate = true;"""
generated += f"""
meta.homepage = "{url}";
}};
"""
return generated
generated_file = """# generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
{ buildGrammar, """
generated_file += subprocess.check_output(["nurl", "-Ls", ", "], text=True)
generated_file += """ }:
{
"""
for generated in ThreadPoolExecutor().map(generate_grammar, lockfile.items()):
generated_file += generated
generated_file += "}\n"
open(join(dirname(__file__), "generated.nix"), "w").write(generated_file)
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