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trigger-travis.sh

This script triggers a new Travis-CI job. Ordinarily, a new Travis job is triggered when a commit is pushed to a GitHub repository. The trigger-travis.sh script provides a programmatic way to trigger a new Travis job.

Usage

trigger-travis.sh [--pro] [--branch BRANCH] GITHUBID GITHUBPROJECT TRAVIS_ACCESS_TOKEN [MESSAGE]

For example:

trigger-travis.sh typetools checker-framework `cat ~/private/.travis-access-token` "Trigger for testing"

--pro means to use travis-ci.com instead of travis-ci.org

--branch BRANCH means to use BRANCH instead of master.

TRAVIS_ACCESS_TOKEN is the Travis access token; see below for details. (In the example above, ~/private/.travis-access-token contains the Travis access token.)

MESSAGE is a string that will be displayed by Travis's web interface. (For a commit push, Travis uses the commit message.)

Travis access token

Your Travis access token is the text after "Your access token is " in the output of this compound command:

  travis login && travis token

If the travis program isn't installed, then install it using either of these two commands (whichever one works):

   gem install travis
   sudo apt-get install ruby-dev && sudo gem install travis

Don't do sudo apt-get install travis which installs a trajectory analyzer.

Note that the Travis access token output by travis token differs from the Travis token available at https://travis-ci.org/profile . If you store it in in a file, make sure the file is not readable by others, for example by running: chmod og-rwx ~/private/.travis-access-token

Use in .travis.yml

To make one Travis build (if successful) trigger a different Travis build, do two things:

  1. Set an environment variable TRAVIS_ACCESS_TOKEN by navigating to https://travis-ci.org/MYGITHUBID/MYGITHUBPROJECT/settings . The TRAVIS_ACCESS_TOKEN environment variable will be set when Travis runs the job, but it won't be visible to anyone browsing https://travis-ci.org/ .

  2. Add the following to your .travis.yml file, where you replace OTHERGITHUB* by a specific downstream project, but you leave $TRAVIS_ACCESS_TOKEN as literal text:

jobs:
  include:
    - stage: trigger downstream
      script: |
        echo "TRAVIS_BRANCH=$TRAVIS_BRANCH TRAVIS_PULL_REQUEST=$TRAVIS_PULL_REQUEST"
        if [[ ($TRAVIS_BRANCH == master) &&
              ($TRAVIS_PULL_REQUEST == false) ]] ; then
          curl -LO --retry 3 https://raw.githubusercontent.com/plume-lib/trigger-travis/master/trigger-travis.sh
          sh trigger-travis.sh OTHERGITHUBID OTHERGITHUBPROJECT $TRAVIS_ACCESS_TOKEN
        else
	  echo "trigger-travis.sh did not run"
        fi

You may omit the echo commands, which are just for debugging.

You don't need to supply a MESSAGE argument to trigger-travis.sh; it will default to the current (upstream) repository, commit id, and one line of the commit message.

Credits and alternatives

Parts of this script were originally taken from http://docs.travis-ci.com/user/triggering-builds/ .

An alternative to this script would be to install the Travis command-line client and then run:

travis restart -r OTHERGITHUBID/OTHERGITHUBPROJECT

However, using travis restart is undesirable because it restarts an old job, destroying its history. This script starts a new job.

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