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index.js
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index.js
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var through = require('through2')
, concat = require('concat-stream')
, fs = require('fs')
, path = require('path')
, spawn = require('child_process').spawn;
module.exports = function(opts){
if (!opts) opts = {};
if (opts.gulp == undefined || opts.gulp == null) opts.gulp = true;
if (opts.gulp) {
return through.obj(function(file, enc, next){
if (file.isStream()) {
this.emit('error', new Error('Streaming not supported'));
return next();
}
var self = this;
var errstr = '';
var end = false;
var exit = false;
var child = spawn('gpp', opts.argv);
// stdout
child
.stdout
.pipe(concat(function(buf){
if (buf instanceof Buffer) {
file.contents = buf;
self.push(file);
}
end = true;
if (exit) next();
}));
// stderr
child
.stderr
.pipe(through(function(_buf, _enc, _next){
errstr += _buf.toString();
_next();
}, function(_done){
this.push(new Buffer(errstr.replace(/^stdin:/, path.basename(file.path) + ':')));
_done();
}))
.pipe(fs.createWriteStream('gpp.log', { flags: 'a' }));
// exit code
child
.on('exit', function(code, signal){
if (code) {
var err = new Error('Exit code is not zero. See gpp.log file.');
err.name = 'ChildProcessError';
err.code = code;
err.signal = signal;
self.emit('error', err);
}
exit = true;
if (end) next();
});
// stdin
child
.stdin
.end(file.contents);
return;
});
} else {
return through(function(buf, enc, next){
var self = this;
var end = false;
var exit = false;
var child = spawn('gpp', opts.argv);
// stdout
child
.stdout
.pipe(concat(function(buf){
if (buf instanceof Buffer) {
self.push(buf);
}
end = true;
if (exit) next();
}));
// stderr
child
.stderr
.pipe(fs.createWriteStream('gpp.log', { flags: 'a' }));
// exit code
child
.on('exit', function(code, signal){
if (code) {
var err = new Error('Exit code is not zero. See gpp.log file.');
err.name = 'ChildProcessError';
err.code = code;
err.signal = signal;
self.emit('error', err);
}
exit = true;
if (end) next();
});
// stdin
child
.stdin
.end(buf);
return;
});
}
};