nassh: Don't reload while windows are open.

Handle the chrome.runtime.onUpdateAvailable event so that we're
not automatically reloaded when there's a pending update.

When we notice an update available we show a unicode up-arrow in
each terminal window.  When all windows are closed we'll apply the
update.  Users can dismiss the update notification by clicking on

Change-Id: I943abd63709fc08d0d2c702a4b3a27a2b5cec5c7
Reviewed-by: Antony Sargent <>
Tested-by: Robert Ginda <>
6 files changed
tree: 4270c6f95a8f122ffac915a5d3c0f4555135970f
  1. .gitignore
  4. hterm/
  5. libdot/
  6. nassh/
  7. saltpig/
  8. wam/
  9. wash/


This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at

There is also a mirror on github at Keep in mind that this mirror may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on Github pull requests cannot be accepted. Please see the document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code. It provides a base layer for web applications. The code is intended to work in any modern browser, in either a plain web page or a “privileged” environment such as a Chrome platform application or Firefox extension. In practice, it's only been put to use in Chrome platform applications so far.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is a Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • wash/ is a library for cross-origin virtual filsystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.