shipitjs/lib/steps/FindVersion.js

npm package release management tool

var semver = require('semver');

exports.getExecutor = function(state) {
  return function(cb) {
    var ver = state.getVersion();
    var release = state.getReleaseType();
    var vc = state.getVc();
    vc.existsTaggedVersion(ver, function(err, isTagged) {
      if (err)
        return cb(err);
      console.log('Current version: ' + ver);

      var def = '';
      var next;
      if (release != 'custom') {
        next = semver.inc(ver, release);
        def = '[' + next + ']';
      }

      if (!isTagged && release == 'custom') {
        def = '[' + ver + ']';
      }

      var i = state.getReadlineInterface();

      i.question('Enter new version: ' + def, function(answer) {
        var newver;
        if (answer.length === 0) {
          newver = release == 'custom' ? ver : next;
        } else {
          newver = answer;
        }
        if (!semver.valid(newver)) {
          return cb(new Error('Invalid version number: ' + newver));
        }

        if (isTagged && newver == ver) {
          vc.areLocalDiffs(ver, function(err, hasDiff) {
            if (err)
              return cb(err);
            if (hasDiff)
              return cb(new Error("No local changes and version on disk has already been tagged.  Nothing to do."));
          });
        }

        vc.existsTaggedVersion(newver, function(err, isTagged) {
          if (err)
            return cb(err);
          if (isTagged)
            return cb(new Error('A tag for version "' + newver + '" already exists.  Stopping.'));
          state.setVersion(newver);
          cb(null);
        });
      });
    });
  };
};