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March 20, 2019 11:45
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Pretty print nginx configuration on NixOS
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#!/usr/bin/env nix-shell | |
#!nix-shell -p nginx-config-formatter python3 -i python3 | |
import os | |
import re | |
import shutil | |
import subprocess | |
import sys | |
from tempfile import TemporaryDirectory | |
def nginx_config() -> str: | |
out = subprocess.check_output(["systemctl", "cat", "nginx"]) | |
match = re.search(r"-c (\S+-nginx\.conf)", out.decode("utf-8")) | |
if not match: | |
print("Could not find nginx.conf in nginx.service", file=sys.stderr) | |
sys.exit(1) | |
return match.group(1) | |
def main(): | |
config_path = nginx_config() | |
with TemporaryDirectory() as temp_dir: | |
temp_path = os.path.join(temp_dir, "nginx.conf") | |
with open(temp_path, "wb+") as temp_file, \ | |
open(config_path, "rb") as config_file: | |
shutil.copyfileobj(config_file, temp_file) | |
temp_file.flush() | |
subprocess.check_call(["nginxfmt", temp_file.name]) | |
editor = os.environ.get("EDITOR", "cat") | |
subprocess.check_call([editor, temp_file.name] + sys.argv[1:]) | |
if __name__ == "__main__": | |
main() |
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