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README.md

Thimble on Node.js

This is a port of Thimble, the mozilla webmaker tool for writing and editing HTML and CSS right in your browser (https://thimble.webmaker.org) from its Playdoh-embedded python implementation to a dedicated ust-Thimble Node.js implementation.

NOTE: This README assumes that you have all the required external dependencies installed and have a working dev environment. New to Webmaker? Make sure to read our developer guide for everything you need in order to get started!

Setup

In order to run Thimble, the following things are required:

1) you will need to have node installed

You can find node on http://nodejs.org or your package manager.

2) you'll need to fork and then clone the repo recursively:

git clone git@github.com:[yourname]/thimble.webmaker.org.git --recursive

3a) you may need the XCode console tools (on OSX) or the VC++ express + windows SKD 7.1 stack (on Windows) in order for node-gyp to compile some npm dependencies 3b) go into the thimble.webmaker.org dir and run npm install

4) set up the environment variables (see next section).

5) make-valet

You can now run Thimble from the thimble.webmaker.org directory using

node app

Finally, there is a special variable that enables an additional route in the app for testing content deletion, DELETE_ENABLED. See app.js for more details on the effect this variable has on running the app.

Environment variables

There is a special file that is used for environment variables in lieu of actually setting these for development purposes. The base file is env.dist and is self documented. Simply run through it and set your values accordingly. To use these values during development, copy this file:

cp env.dist .env

and the Thimble code will pick up on it when run through node.

Together.js

There is a special library that we hook into for collaborative work called together.js, https://togetherjs.com, which can be run either online or localhost.

For most purposes you want to set the TOGETHERJS environment variable in your .env to https://togetherjs.com so that thimble picks the standard together.js library to do the collaboration work.

If you wish to test with a local together.js library and hub server, it is strongly recommended that you use the webmaker-suite, instead, which has together.js as one of the locally run components. Please visit https://github.com/mozilla/webmaker-suite for more information on the suite.

Development additionals

We handle JS, HTML and CSS linting through grunt, which is very simple to set up if you don't have it installed already:

npm install -g grunt-cli

After this, simpy run grunt before commiting code and you should be good to go.

Deploying to Heroku

If you want to test this code in a live environment, you can spin up a heroku instance, and simply push up the master branch code. (read the heroku tutorial on deploying a node.js application. If you follow the instructions, it's super simple).

First, add the MySQL add-on for saving projects:

heroku addons:add cleardb:ignite

(See https://devcenter.heroku.com/articles/cleardb for more information)

Alternatively, you can rely on SQLite3 to act as database, but you will lose all your data when your heroku instance goes to sleep, as it simply resets the heroku instance to its deploy state. If that's fine, you can use these environment variables rather than setting up ClearDB:

> heroku config:set DB_DIALECT="sqlite"
> heroku config:set DB_STORAGE="thimble.sqlite"

After doing this, you will then need to issue some (more) environment "SET" commands to make sure things work. This is mostly making sure that all the variables that are found in the env.dist file also exist in your heroku environment:

> heroku config:set NODE_ENV="development"
> heroku config:set APP_HOSTNAME="http:// ...heroku instance..."
> heroku config:set AUDIENCE="http://[webmaker.org instance]"
> heroku config:set USERBAR="http://[login.webmaker.org instance]"
> heroku config:set LOGINAPI="http://testuser:password@[login.mofostaging.net instance]"
> heroku config:set MAKE_ENDPOINT="http://[makeapi instance]/"
> heroku config:set MAKE_AUTH="testuser:password"
> heroku config:set SESSION_SECRET="irrelephant"

If you're running your own heroku copies of all the webmaker.org services, then you can simply point your heroku instance to the various other instances. If, however, you are testing within the greater webmaker.org suite of applications, you probably want to use the *.mofostaging.net URLs.

Also, for Amazon S3, the following values are quite important:

> heroku config:set S3_BUCKET="your bucket name"
> heroku config:set S3_KEY="your S3 access key"
> heroku config:set S3_SECRET="your private S3 secret string"

Note that when deploying to heroku, there will be no S3 emulation available.

A note on credentials

The login credentials in the LOGINAPI variable map to the ALLOWED_USERS variable used by the login instance that you rely on. This login regulates who can ask the login service for user information. It is not the list of "which persona user is allowed to access the login service".

The makeapi credentials map to the ALLOWED_USERS variable for the MakeAPI instance, and regulate who can query and push to the makeAPI. Again, this is not related to persona logins in any way.

Also note that the SESSION_SECRET environment variable is the secret that Thimble uses for setting its own local cookie, and can be any string you like (except an empty string).

New Relic

To enable New Relic, set the NEW_RELIC_ENABLED environment variable and add a config file, or set the relevant environment variables.

For more information on configuring New Relic, see: https://github.com/newrelic/node-newrelic/#configuring-the-agent

Migration

Various scripts are present that will assist in migrating old data sets along with Node.js scripts to update old records.

  • migrations/09052013-add-makeid-column.sql

    • Used to add the makeid to the ThimbleProject data model. Using the script will depend on your SQL managing environment, but here's an example of using it in a commandline prompt:
      • mysql < migrations/09052013-add-makeid-column.sql - Assumes you have already done use <DB_NAME>
  • migrations/ThimbleProjectMigration.js

    • Used to retrieve the makeid for any ThimbleProject that has already been published to the MakeAPI. This only needs to be run once.
      • node migrations/ThimbleProjectMakeIDMigration.js will execute this script, assuming proper .env variables have already been setup (instructions above).
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