Function install

lib/completion.js:137–168

(name, completer, cb)

}

function install(name, completer, cb) {
  var markerIn = '###-begin-' + name + '-completion-###',
    markerOut = '###-end-' + name + '-completion-###';

  var rc, scriptOutput;

  readRc(completer, function(err, file) {
    if(err) return cb(err);

    var part = file.split(markerIn)[1];
    if(part) {
      return cb(null, ' ✗ ' + completer + ' tab-completion has been already installed. Do nothing.');
    }

    rc = file;
    next();
  });

  script(name, completer, function(err, file) {
    scriptOutput = file;
    next();
  });

  function next() {
    if(!rc || !scriptOutput) return;

    writeRc(rc + scriptOutput, function(err) {
      if(err) return cb(err);
      return cb(null, ' ✓ ' + completer + ' tab-completion installed.');
    });
  }
}

function uninstall(name, completer, cb) {
  var markerIn = '\n\n###-begin-' + name + '-completion-###',