/**
* Write a readonly file.
* @function lib.file.writeReadonlyFile
* @param {string} filename - Filename to write.
* @param {string} content - File content to write.
* @param {function} callback - Callback when done.
* @author Taka Okunishi
*
*/
var fs = require('fs');
exports = module.exports = function (filename, content, callback) {
if (!callback) callback = new Function;
exports._forceUnlink(filename, function (err) {
if (err) {
callback(err);
return;
}
exports._writeFile(filename, content, function (err) {
if (err) {
callback(err);
return;
}
fs.chmod(filename, '444', function (err) {
callback(err);
});
});
});
};
exports._forceUnlink = require('./force_unlink');
exports._writeFile = fs.writeFile;