function bundle (cramCfg, root) {
var tempDir, tempCfgFile, tempOutFile;
// tempDir = os.tmpdir();
tempDir = mkdir('.cram/temp');
tempCfgFile = path.join(tempDir, 'cram.json');
tempOutFile = path.join(tempDir, 'hooks.js');
fs.writeFileSync(tempCfgFile, cramCfg);
return when(cram({
appRoot: root,
configFiles: [ tempCfgFile ],
output: tempOutFile
})).then(function () {
// clean up after cram
delete global.define;
// return bundle
return '' + fs.readFileSync(tempOutFile);
});
}
return { into: function(output, readOpt) {
if (!readOpt) readOpt = {};
// use buffer mode by default
if (typeof readOpt.buffer !== 'boolean') readOpt.buffer = true;
if(!output) throw new PluginError(PLUGIN_NAME, "output filename must not be null");
// write cram results to a temp hidden file
var cwd = process.cwd();
var cramOutput = path.resolve(cwd, CRAM_OUTPUT_FILE);
opts.output = CRAM_OUTPUT_FILE;
// this is the output file name that will be streamed
var outputPath = path.resolve(cwd, output);
// this is the stream that will be piped to the next gulp plugin
var resultStream = through();
// getting a when promise on cram result
var promise = when(cram(opts));
// throw a gulp plugin error if cram can't complete its task
var cramError = function() {
throw new PluginError(PLUGIN_NAME, "Cram error", {showStack: true});
};
// when finished, read cram temp output and push it in the result stream as a vinyl file
var onFulfill = function() {
if(!fs.existsSync(cramOutput)) {
throw new PluginError(PLUGIN_NAME, "missing temporary cram output file: "+cramOutput);
}
// unlink cram temp file once it's entirely read
resultStream.on('end', function() {
fs.unlinkSync(cramOutput);
});
// return a readStream or a buffer
var readCramOutput = function(cramOutput, useBuffer, cb) {
if(useBuffer) {
fs.readFile(cramOutput, function (err, data) {
cb(err, data);
});
} else {
cb(null, fs.createReadStream(cramOutput));
}
}
// push the new file in the result stream
var pushFile = function(err, contents) {
// push a new vinyl file in the result stream
var cramFile = new File({
cwd: cwd,
base: cwd,
path: outputPath,
contents: contents
});
resultStream.end(cramFile);
}
readCramOutput(cramOutput, readOpt.buffer, pushFile);
}
promise.done(onFulfill, cramError);
return resultStream;
}};