There are two ways to specify multiple parallel jobs (what we call the build matrix) with a single
.travis.yml configuration file:
combine a language-and-environment dependent set of configuration options to automatically create a matrix of all possible combinations. This is called matrix expansion. For example, the following configuration produces a build matrix that expands to 8 individual (2 * 2 * 2) jobs.
rvm: - 2.5 - 2.2 gemfile: - gemfiles/Gemfile.rails-3.2.x - gemfiles/Gemfile.rails-3.0.x env: - ISOLATED=true - ISOLATED=false
specify the exact combination of configurations you want in
matrix.include. For example, if not all of those combinations are interesting, you can specify just the combinations you want:
matrix: include: - rvm: 2.5 gemfile: gemfiles/Gemfile.rails-3.2.x env: ISOLATED=false - rvm: 2.5 gemfile: gemfiles/Gemfile.rails-3.2.x env: ISOLATED=true
All build matrixes are currently limited to a maximum of 200 jobs for both private and public repositories. If you are on an open-source plan, please remember that Travis CI provides this service free of charge to the community. So please only specify the matrix you actually need.
Excluding Jobs #
You can also define exclusions to the build matrix:
matrix: exclude: - rvm: 1.9.3 gemfile: gemfiles/Gemfile.rails-2.3.x env: ISOLATED=true - rvm: jruby gemfile: gemfiles/Gemfile.rails-2.3.x env: ISOLATED=true
If the jobs you want to exclude from the build matrix share the same matrix parameters, you can specify only those and omit the varying parts.
Suppose you have:
language: ruby rvm: - 1.9.3 - 2.0.0 - 2.1.0 env: - DB=mongodb - DB=redis - DB=mysql gemfile: - Gemfile - gemfiles/rails4.gemfile - gemfiles/rails31.gemfile - gemfiles/rails32.gemfile
This results in a 3×3×4 build matrix. To exclude all jobs which have
Gemfile, you can write:
matrix: exclude: - rvm: 2.0.0 gemfile: Gemfile
Which is equivalent to:
matrix: exclude: - rvm: 2.0.0 gemfile: Gemfile env: DB=mongodb - rvm: 2.0.0 gemfile: Gemfile env: DB=redis - rvm: 2.0.0 gemfile: Gemfile env: DB=mysql
Excluding jobs with
env value #
When excluding jobs with
env values, the value must match
language: ruby rvm: - 1.9.3 - 2.0.0 - 2.1.0 env: - DB=mongodb SUITE=all - DB=mongodb SUITE=compact - DB=redis - DB=mysql matrix: exclude: - rvm: 1.9.3 env: DB=mongodb
defines a 3×4 matrix, because the
env value does not match with
any job defined in the matrix.
To exclude all Ruby 1.9.3 jobs with
DB=mongodb set, write:
language: ruby rvm: - 1.9.3 - 2.0.0 - 2.1.0 env: - DB=mongodb SUITE=all - DB=mongodb SUITE=compact - DB=redis - DB=mysql matrix: exclude: - rvm: 1.9.3 env: DB=mongodb SUITE=all # not 'env: DB=mongodb SUITE=all' or 'env: SUITE=all DB=mongodb' - rvm: 1.9.3 env: DB=mongodb SUITE=compact # not 'env: SUITE=compact DB=mongodb'
Explicitly Including Jobs #
It is also possible to include entries into the matrix with
matrix: include: - rvm: ruby-head gemfile: gemfiles/Gemfile.rails-3.2.x env: ISOLATED=false
This adds a particular job to the build matrix which has already been populated.
This is useful if you want to only test the latest version of a dependency together with the latest version of the runtime.
You can use this method to create a build matrix containing only specific combinations. For example,
language: python matrix: include: - python: "2.7" env: TEST_SUITE=suite_2_7 - python: "3.3" env: TEST_SUITE=suite_3_3 - python: "pypy" env: TEST_SUITE=suite_pypy script: ./test.py $TEST_SUITE
creates a build matrix with 3 jobs, which runs test suite for each version of Python.
Explicitly included jobs inherit the first value in the array #
The jobs which are explicitly included inherit the first value of the expansion keys defined.
In this example with a 3-job Python build matrix, each job in
python value set to
You can explicitly set the python version for a specific entry:
language: python python: - '3.5' - '3.4' - '2.7' matrix: include: - python: '3.5' # this is not strictly necessary env: EXTRA_TESTS=true - python: '3.4' env: EXTRA_TESTS=true script: env $EXTRA_TESTS ./test.py $TEST_SUITE
Rows that are Allowed to Fail #
You can define rows that are allowed to fail in the build matrix. Allowed failures are items in your build matrix that are allowed to fail without causing the entire build to fail. This lets you add in experimental and preparatory builds to test against versions or configurations that you are not ready to officially support.
Define allowed failures in the build matrix as key/value pairs:
matrix: allow_failures: - rvm: 1.9.3
Matching Jobs with
When matching jobs against the definitions given in
allow_failures must be met exactly, and
all the keys in
allow_failures element must exist in the
top level of the build matrix (i.e., not in
allow_failures Examples #
language: ruby rvm: - 2.0.0 - 2.1.6 env: global: - SECRET_VAR1=SECRET1 matrix: - SECRET_VAR2=SECRET2 matrix: allow_failures: - env: SECRET_VAR1=SECRET1 SECRET_VAR2=SECRET2
Here, no job is allowed to fail because no job has the
language: php php: - 5.6 - 7.0 env: # important! matrix: include: - php: 7.0 env: KEY=VALUE allow_failures: - php: 7.0 env: KEY=VALUE
Without the top-level
env, no job will be allowed to fail.
Fast Finishing #
If some rows in the build matrix are allowed to fail, the build won’t be marked as finished until they have completed.
To mark the build as finished as soon as possible, add
fast_finish: true to the
matrix section of your
.travis.yml like this:
matrix: fast_finish: true
Now, the build result will be determined as soon as all the required jobs finish, based on these results, while the rest of the
allow_failures jobs continue to run.