gmail-query-auto-archiver

main.gs

function main() { autoArchiveMail() }

// A mapping of a query / saved search, and the ageCutoff for archiving.
function archiveMap() {
  return [
    {query: inbox('label:expirable label:stripe'),          ageCutoff: hoursOld(1)}, // Quickly burn these
    {query: inbox('"Your meeting attendees are waiting!"'), ageCutoff: hoursOld(1)}, // Quickly burn these
    {query: inbox('label:n'),                               ageCutoff: hoursOld(6)},
    {query: inbox('label:expirable'),                       ageCutoff: hoursOld(6)},
    {query: inbox('label:office'),                          ageCutoff: daysOld(10)}, // Offce Notices
  ]
}

// The catch-all label to put on mail you don't need to keep around.
function expireLabel() {
  return 'expirable';
}

// The label which marks mail as having been processed by this script.
function expiredLabel() {
  return 'expired';
}

// A safe base query builder that 
// - includes mail in the Inbox 
// - excludes starred email
// - excludes TODO mails
function inbox(extras) {
  return 'in:inbox -label:todo -is:starred ' + extras;
}

function autoArchiveMail() {
  var archivals = archiveMap();
  archivals.forEach(archive);
}

function archive(mapping) {
  Logger.log("Archiving %s", mapping);

  var archivalThreads = GmailApp.search(mapping.query, 0, 400);
  var selectorLabel   = GmailApp.getUserLabelByName(expireLabel());
  var markerLabel     = GmailApp.getUserLabelByName(expiredLabel());

  archivalThreads.forEach(function (currentThread) {
    if (currentThread.getLastMessageDate() < mapping.ageCutoff) {
      markerLabel.addToThread(currentThread);
      currentThread.moveToArchive();
      selectorLabel.removeFromThread(currentThread);
    }
  });
}

function hoursOld(hoursAgo) {
  var cutOff = new Date();
  cutOff.setHours(cutOff.getHours() - hoursAgo);
  return cutOff;
}

function daysOld(daysAgo) {
  var maxDate = new Date();
  maxDate.setDate(maxDate.getDate() - daysAgo);
  return maxDate;
}