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'use strict';
var path = require('path');
var Promise = require('bluebird');
var fs = Promise.promisifyAll(require('fs'));
var spawn = require('cross-spawn');
var debug = require('debug')('purs-loader');
var dargs = require('./dargs');
module.exports = function bundle(options, bundleModules) {
var stdout = [];
var stderr = [];
var bundleCommand = options.pscBundle || 'purs';
var bundleArgs = (options.pscBundle ? [] : ['bundle']).concat(dargs(Object.assign({
_: [path.join(options.output, '*', '*.js')],
output: options.bundleOutput,
namespace: options.bundleNamespace
}, options.pscBundleArgs)));
bundleModules.forEach(function (name) {
return bundleArgs.push('--module', name);
});
debug('bundle: %s %O', bundleCommand, bundleArgs);
return new Promise(function (resolve, reject) {
debug('bundling PureScript...');
var compilation = spawn(bundleCommand, bundleArgs);
compilation.stdout.on('data', function (data) {
return stdout.push(data.toString());
});
compilation.stderr.on('data', function (data) {
return stderr.push(data.toString());
});
compilation.on('close', function (code) {
debug('finished bundling PureScript.');
if (code !== 0) {
var errorMessage = stderr.join('');
if (errorMessage.length) {
psModule.emitError(errorMessage);
}
reject(new Error('bundling failed'));
} else {
resolve(fs.appendFileAsync(options.bundleOutput, 'module.exports = ' + options.bundleNamespace));
}
});
});
};
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