Setting up Echidna as a GitHub hook

You can use Travis integration to ping Echidna whenever there's a commit.
This PR might be useful to you as a template of sorts: it contains almost every change that was needed in a real repo to set it up for automatic publication with Echidna.

For this you will need:

• Everything set up as per Using Echidna with ReSpec.
• The following .travis.yml in your repo, in the branch you wish to publish from (suitably modified)
• Travis integration activated for that repo; I think that at this point this requires the intervention from someone who has admin access (but it's just a button to push).

language: node_js
 
branches:
  only:
    - gh-pages
 
env:
  global:
    - URL="http://w3c.github.io/manifest/ECHIDNA"
    - DECISION="https://lists.w3.org/Archives/Public/public-webapps/2014JulSep/0627.html"
    - secure: "<your encrypted token here!>"
 
script:
  - echo "ok"
 
after_success:
  - curl "https://labs.w3.org/echidna/api/request" --data "url=$URL" --data "decision=$DECISION" --data "token=$TOKEN"

A few notes on the .travis.yml:

• It says "language: node_js". Ignore that. If you don't specify a language, Travis gives a warning. This is just to silence it.
• Under branches/only you want to include the branch you are publishing from. I STRONGLY recommend that you publish only from one branch; hence the lines. Also, Travis ignored gh-pages unless you include this.
• Under env/global you will want to change all three of URL (the URL of your file or manifest), DECISION (the decision to publish), and the weird-looking "secure" line.

The latter "secure" line is actually the encrypted token that you were given to publish with Echidna. It's probably a better idea to encrypt it, as done in the example above. Thankfully, it's very simple.

Basically, you install the travis tool (gem install travis), then run:

   travis encrypt TOKEN=your.beautiful.token

This will respond with:

   secure: "some encrypted garbage"

You can just paste the garbage on that line and it'll work. More details about encrypting stuff on the Travis site, should you need it.

That's all! With that in place, every commit you make to that branch gets you published in TR. You can see the build status at https://travis-ci.org/USER/REPO (e.g. https://travis-ci.org/w3c/manifest).

Note that this can sometimes be slow, but it'll work eventually.

Also note that you won't be told through Travis if Echidna fails. That can only happen later.