Travis Build is a library that Travis Workers use to generate a shell based build script which is then uploaded to the VMs using SSH and executed, with the resulting output streamed back to Travis.

This code base has gone through several iterations of development, and was originally extracted from Travis Worker, before taking its current form.

Run

bundle exec rake

You can set travis-build up as a plugin for the command line client:

ln -s PATH_TO_TRAVIS_BUILD ~/.travis/travis-build
gem install bundler
bundle install --gemfile ~/.travis/travis-build/Gemfile
bundler binstubs travis

You will now be able to run the compile command, which produces the bash script that runs the specified job, except that the secure environment variables are not defined, and that the build matrix expansion is not considered.

~/.travis/travis-build/bin/travis compile

The resulting script contains commands that make changes to the system on which it is executed (e.g., edit /etc/resolv.conf, install software). Some require sudo privileges and they are not easily undone.

It is highly recommended that you run this on a virtual machine.

The command can be invoked in 3 ways:

1. Without an argument, it produces the bash script for the local .travis.yml without considering env and matrix values (travis-build is unable to expand these keys correctly).

   $ ~/.travis/travis-build/bin/travis compile

2. With a single integer, it produces the script for the given build (or the first job of that build matrix).

   $ ~/.travis/travis-build/bin/travis compile 8

3. With an argument of the form M.N, it produces the bash script for the job M.N.

   $ ~/.travis/travis-build/bin/travis compile 351.2

The resultant script can be used on a (virtual) machine that closely mimics Travis CI's build environment to aid you in debugging the build failures.

In addition to the travis CLI plugin you can also run the standalone CLI script:

$ bundle exec script/compile < payload.json > build.sh

If you want to run travis-build locally on your machine (e.g. to interact with worker), you can also run it as a docker container with docker-compose:

$ docker-compose up

See LICENSE file.

Copyright (c) 2011-2016 Travis CI development team.