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Contributing to php-build

Running the tests

php-build uses Bats to run tests on built PHP versions. The script run-tests.sh in the project root builds PHP versions into a temporary directory and runs the tests. This script is also capable of compiling a series of definitions for multiple PHP versions.

The script can be invoked like this:

% ./run-tests.sh <definition>...

There is also a special target for testing php-build, stable. The stable target tests the latest stable release of the active PHP branches. At the time of the writing these are 5.4.9 and 5.3.19.

Writing definitions for stable PHP releases

Let's assume a new stable release is out, and it's named 5.5.0. First you will likely use a definition of any of the preview releases of this series as a base, for example 5.5.0RC1.

Create a file named 5.5.0 in share/php-build/definitions. Then let's get the URL for the tarball. Usually tarballs for stable versions are located at https://secure.php.net/distributions/php-<version>.tar.bz2, in our case this would be https://secure.php.net/distributions/php-5.5.0.tar.bz2.

Make sure to always use path ending with .bz2, it's the best format that's supported by php-build.

If there's no XDebug release for this new version of PHP, then it will usually be best to use XDebug from Git by putting install_xdebug_master into the definition.

So far our whole definition will look like this:

# share/php-build/definitions/5.5.0
install_package "https://secure.php.net/distributions/php-5.5.0.tar.bz2"
install_xdebug_master # or install_xdebug "<version>"

Since this is a new stable version, let's update the versions for the stable target of the test runner. Open run-tests.sh in your text editor of choice, and then replace the list of versions in the STABLE_DEFINITIONS variable, so it looks like this:

STABLE_DEFINITIONS="5.4.10 5.5.0"

Usually two branches of PHP are maintained by the developers, and thus supported by php-build. If a 5.5.0 is released, this means that the stable target should test the latest stable 5.4 release, and our 5.5.0 release.

Last but not least, update the Travis CI configuration file .travis.yml, to also contain the definitions set as STABLE_DEFINITIONS:

env:
    - DEFINITION=5.4.10
    - DEFINITION=5.5.0