Building an Elixir Project
What This Guide Covers #
Language versions and other build-environment specific information are in our reference pages:
Elixir builds are not available on the OS X environment.
CI Environment for Elixir Projects #
To choose the Elixir VM, declare in your
Specify which Elixir version to build with #
You can specify Elixir version to build with by the
The former points to the specific release indicated, while the latter points to the latest development branch build which has latest patches but may be occasionally be broken. See this GitHub issue comment for more details.
Specifying OTP Release version #
Note that Elixir has requirements regarding the underlying Erlang OTP Release version.
If the specified OTP Release version (implicitly or explicitly) does not meet this requirement, Travis CI will choose one for you.
You can also override this OTP Release choice by adding the
language: elixir elixir: - '1.2.2' otp_release: - '18.2.1'
To test multiple Elixir versions with different OTP release versions:
language: elixir elixir: - '1.0.5' otp_release: '17.4' matrix: include: - elixir: '1.2' otp_release: '18.0'
Build Matrix #
For elixir projects,
otp_release can be given as arrays
to construct a build matrix.
Default commands #
By default, the install command is
mix local.rebar --force # for Elixir 1.3.0 and up mix local.hex --force mix deps.get
and the script command is
Environment Variables #
The version of Elixir a job is using is available as:
As with the Erlang VM, the version of OTP release a job is using is available as: