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/**
* Module dependencies
*/
var concat = require('./reduceStream').concat;
var exec = require('child_process').exec;
var Err = require('./errors');
module.exports = {
/**
* Run `npm install`.
*
* @param {Array} dependencies [string names of all your dependencies, plus versions if you want, you know the drill]
* @param {Object} options
* @param {Object|Function} cb
*/
install: function(options, cb) {
return doNpmCommand({
npmCommand: 'install',
cmdArgs: options.dependencies,
cmdOptions: {
production: options.production || false,
loglevel: options.loglevel || undefined,
save: options.save || false,
'save-dev': options.saveDev || false,
'save-exact': options.saveExact || false,
prefix: options.prefix || undefined,
},
dir: options.dir
}, cb);
},
/**
* @param {[type]} options [description]
* @param {Function} cb [description]
* @return {[type]} [description]
*/
update: function(options, cb) {
return doNpmCommand({
npmCommand: 'update',
path: options.path || '',
cmdArgs: [],
cmdOptions: {
production: options.production || false,
loglevel: options.loglevel || undefined,
prefix: options.prefix || undefined,
},
dir: options.dir
}, cb);
}
};
function doNpmCommand(options, cb) {
cb = cb || function() {};
if (!options.npmCommand) {
return cb(new Error('`npmCommand` option is required'));
}
// Defaults
options.cmdOptions = options.cmdOptions || {};
options.cmdArgs = options.cmdArgs || [];
// Check to make sure npm CLI is accessible
var NPM_V_OUTPUT = /^[0-9]+\.[0-9]+\.[0-9]+/;
var stdout$npm_v = exec('npm -v').stdout;
concat(stdout$npm_v, function(err, result) {
if (err) return cb(err);
if (typeof result !== 'string' ||
!result.match(NPM_V_OUTPUT)) {
return cb(Err.cantFindNpm(result));
}
// Build command to execute
var cmd = '';
cmd += 'npm ' + options.npmCommand + ' ';
cmd += options.cmdArgs.join(' ');
cmd += ' ';
// if ('save' in options && options.save) {
// cmd += '--save ';
// }
//
// if ('saveExact' in options && options.saveExact) {
// cmd += '--save-exact ';
// }
//
// if ('saveDev' in options && options.saveDev) {
// cmd += '--save-dev ';
// }
//
// if (options.path.length > 0) {
// cmd += '--prefix ' + options.path + ' ';
// }
for (var key in options.cmdOptions) {
// Skip undefined options
if (options.cmdOptions[key] !== undefined) {
cmd += '--' + key + '=' + options.cmdOptions[key] + ' ';
}
}
cmd += '';
// DRY:
// console.log('WOULD HAVE RUN::');
// console.log(cmd);
// Spin up child process
var npm = exec(cmd, {cwd: options.dir});
var stderr$npm = npm.stderr;
var stdout$npm = npm.stdout;
// Watch in case anything goes wrong
stderr$npm.pipe(process.stderr);
// When finished, trigger success cb
npm.on('exit', function onSuccess() {
cb();
});
});
}