@zkochan/pnpm/cached_node_modules/ghooks/dist/runner.js

A fast implementation of npm install

'use strict';

var clone = require('lodash.clone');
var managePath = require('manage-path');
var spawn = require('spawn-command');

var _require = require('path');

var resolve = _require.resolve;
var basename = _require.basename;

var findup = require('findup');
var fs = require('fs');

module.exports = function run(nodeModulesPath, filename, env) {
  var command = commandFor(nodeModulesPath, hook(filename));
  if (command) {
    runCommand(command, env);
  }
};

function hook(filename) {
  return basename(filename);
}

// replace any instance of $1 or $2 etc. to that item as an process.argv
function replacePositionalVariables(command) {
  return command.replace(/\$(\d)/g, function (match, number) {
    return process.argv[number];
  });
}

function commandFromPackage(packagePath, hookName) {
  var pkg = JSON.parse(fs.readFileSync(packagePath));
  if (pkg.config && pkg.config.ghooks && pkg.config.ghooks[hookName]) {
    return replacePositionalVariables(pkg.config.ghooks[hookName]);
  } else {
    return null;
  }
}

function commandFor(nodeModulesPath, hookName) {
  var pkgFile = findup.sync(nodeModulesPath, 'package.json');
  return commandFromPackage(resolve(pkgFile, 'package.json'), hookName);
}

function runCommand(command, env) {
  env = clone(env || process.env);
  var alterPath = managePath(env);
  alterPath.unshift(getNpmBin(process.cwd()));
  spawn(command, { stdio: 'inherit', env: env }).on('exit', process.exit);
}

function getNpmBin(dirname) {
  return resolve(dirname, 'node_modules', '.bin');
}