function(systemId, env, cb) {
    var repoPath = _meta.repoPath(systemId);
    var tagName = baseTag + env;
    var editsTagName = editsTag + env;

    ngit.Repository.open(repoPath, function(err, repo) {
      if (err) { return cb(err); }

      ngit.Reference.nameToId(repo, tagName, function(err, head) {
        if (err && (!err.message || err.message.indexOf('not found') === -1)) { return cb(err); }
        if (head) {
          cb(null, head.toString());
        }
        else {
          ngit.Reference.nameToId(repo, editsTagName, function(err) {
            if (err) { return cb(err); }
            cb(null, EDITS);
          });
        }
      });
    });
  }
function(systemId, env, cb) {
    var repoPath = _meta.repoPath(systemId);
    var tagName = baseTag + env;
    var editsTagName = editsTag + env;

    ngit.Repository.open(repoPath, function(err, repo) {
      if (err) { return cb(err); }

      ngit.Reference.nameToId(repo, tagName, function(err, head) {
        if (err && (!err.message || err.message.indexOf('not found') === -1)) { return cb(err); }
        if (head) {
          cb(null, head.toString());
        }
        else {
          ngit.Reference.nameToId(repo, editsTagName, function(err) {
            if (err) { return cb(err); }
            cb(null, EDITS);
          });
        }
      });
    });
  }
function ( systemId , env , cb ) { var repoPath = _meta . repoPath ( systemId ) ; var tagName = baseTag + env ; var editsTagName = editsTag + env ; ngit . Repository . open ( repoPath , function ( err , repo ) { if ( err ) { return cb ( err ) ; } ngit . Reference . nameToId ( repo , tagName , function ( err , head ) { if ( err && ( ! err . message || err . message . indexOf ( 'not found' ) === - 1 ) ) { return cb ( err ) ; } if ( head ) { cb ( null , head . toString ( ) ) ; } else { ngit . Reference . nameToId ( repo , editsTagName , function ( err ) { if ( err ) { return cb ( err ) ; } cb ( null , EDITS ) ; } ) ; } } ) ; } ) ; }
get the currently deployed revision
get the currently deployed revision