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#!/usr/bin/env nix-shell
#!nix-shell -i python3 -p
import collections.abc
import fileinput
import json
import os.path
import re
import sys
def remove(attr):
with open(os.path.join(os.path.dirname(__file__), 'node-packages.json'), 'r+') as node_packages_json:
packages = json.load(node_packages_json)
idx = 0
while idx < len(packages):
if packages[idx] == attr or (isinstance(packages[idx], collections.abc.Mapping) and next(iter(packages[idx].keys())) == attr):
del packages[idx]
else:
idx += 1
node_packages_json.seek(0)
for idx, package in enumerate(packages):
if idx == 0:
node_packages_json.write('[\n ')
else:
node_packages_json.write(', ')
json.dump(package, node_packages_json)
node_packages_json.write('\n')
node_packages_json.write(']\n')
node_packages_json.truncate()
with fileinput.input(os.path.join(os.path.dirname(__file__), 'node-packages.nix'), inplace=1) as node_packages:
safe_attr = re.escape(attr)
in_attr = False
for line in node_packages:
if in_attr:
if re.fullmatch(r' \};\n', line):
in_attr = False
else:
if re.fullmatch(rf' (?:{safe_attr}|"{safe_attr}") = nodeEnv\.buildNodePackage \{{\n', line):
in_attr = True
else:
sys.stdout.write(line)
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser(description='Remove a given package from the node-packages.nix file')
parser.add_argument('attr', help='The package attribute to remove')
args = parser.parse_args()
remove(args.attr)
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