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JavaScript

'use strict';
module.exports = exports;
const fs = require('fs');
const path = require('path');
const win = process.platform === 'win32';
const existsSync = fs.existsSync || path.existsSync;
const cp = require('child_process');
// try to build up the complete path to node-gyp
/* priority:
- node-gyp on ENV:npm_config_node_gyp (https://github.com/npm/npm/pull/4887)
- node-gyp on NODE_PATH
- node-gyp inside npm on NODE_PATH (ignore on iojs)
- node-gyp inside npm beside node exe
*/
function which_node_gyp() {
let node_gyp_bin;
if (process.env.npm_config_node_gyp) {
try {
node_gyp_bin = process.env.npm_config_node_gyp;
if (existsSync(node_gyp_bin)) {
return node_gyp_bin;
}
} catch (err) {
// do nothing
}
}
try {
const node_gyp_main = require.resolve('node-gyp'); // eslint-disable-line node/no-missing-require
node_gyp_bin = path.join(path.dirname(
path.dirname(node_gyp_main)),
'bin/node-gyp.js');
if (existsSync(node_gyp_bin)) {
return node_gyp_bin;
}
} catch (err) {
// do nothing
}
if (process.execPath.indexOf('iojs') === -1) {
try {
const npm_main = require.resolve('npm'); // eslint-disable-line node/no-missing-require
node_gyp_bin = path.join(path.dirname(
path.dirname(npm_main)),
'node_modules/node-gyp/bin/node-gyp.js');
if (existsSync(node_gyp_bin)) {
return node_gyp_bin;
}
} catch (err) {
// do nothing
}
}
const npm_base = path.join(path.dirname(
path.dirname(process.execPath)),
'lib/node_modules/npm/');
node_gyp_bin = path.join(npm_base, 'node_modules/node-gyp/bin/node-gyp.js');
if (existsSync(node_gyp_bin)) {
return node_gyp_bin;
}
}
module.exports.run_gyp = function(args, opts, callback) {
let shell_cmd = '';
const cmd_args = [];
if (opts.runtime && opts.runtime === 'node-webkit') {
shell_cmd = 'nw-gyp';
if (win) shell_cmd += '.cmd';
} else {
const node_gyp_path = which_node_gyp();
if (node_gyp_path) {
shell_cmd = process.execPath;
cmd_args.push(node_gyp_path);
} else {
shell_cmd = 'node-gyp';
if (win) shell_cmd += '.cmd';
}
}
const final_args = cmd_args.concat(args);
const cmd = cp.spawn(shell_cmd, final_args, { cwd: undefined, env: process.env, stdio: [0, 1, 2] });
cmd.on('error', (err) => {
if (err) {
return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + err + ')'));
}
callback(null, opts);
});
cmd.on('close', (code) => {
if (code && code !== 0) {
return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + code + ')'));
}
callback(null, opts);
});
};