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@mattallty
Created July 14, 2014 23:10
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function modify(modifiers) {
return through2.obj(function(file, encoding, done) {
var stream = this;
function applyModifiers(content) {
(typeof modifiers === 'function' ? [modifiers] : modifiers).forEach(function(modifier) {
content = modifier(content, file);
});
return content;
}
function write(data) {
file.contents = new Buffer(data);
stream.push(file);
done();
}
if (file.isBuffer()) {
write(applyModifiers(String(file.contents)));
} else if (file.isStream()) {
var buffer = '';
file.contents.on('data', function(chunk) {
buffer += chunk;
});
file.contents.on('end', function() {
write(applyModifiers(String(buffer)));
});
}
});
}
gulp.src('app.js')
.pipe(modify(version))
.pipe(modify(swapStuff))
.pipe(gulp.dest('build/'));
function version(data) {
return data.replace(/__VERSION__/, '0.0.1');
}
function swapStuff(data) {
return data.replace(/(\w+)\s(\w+)/, '$2, $1');
}
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