Add optional CI_BUILD_DIR environment variable

Author: Adrian Perez

.github/workflows/test.yml

@@ -74,7 +74,7 @@ jobs:
         cp -R tests/Fixture/moodle-local_ci ../moodle-local_ci
         echo $(cd bin; pwd) >> $GITHUB_PATH
         echo $(cd vendor/bin; pwd) >> $GITHUB_PATH
-        echo "TRAVIS_BUILD_DIR="$(cd ../moodle-local_ci; pwd) >> $GITHUB_ENV
+        echo "CI_BUILD_DIR="$(cd ../moodle-local_ci; pwd) >> $GITHUB_ENV
         # PHPUnit depends on en_AU.UTF-8 locale
         sudo locale-gen en_AU.UTF-8
         # Define NVM_DIR pointing to nvm installation.

src/Command/InstallCommand.php

@@ -77,6 +77,11 @@ protected function configure()
         $extra  = getenv('EXTRA_PLUGINS_DIR') !== false ? getenv('EXTRA_PLUGINS_DIR') : null;
         $node   = getenv('NODE_VERSION') !== false ? getenv('NODE_VERSION') : null;
 
+        // As there is not only Travis CI, it can also be passed a generic environment variable.
+        if (null === $plugin) {
+            $plugin = getenv('CI_BUILD_DIR') !== false ? getenv('CI_BUILD_DIR') : null;
+        }
+
         $this->setName('install')
             ->setDescription('Install everything required for CI testing')
             ->addOption('moodle', null, InputOption::VALUE_REQUIRED, 'Clone Moodle to this directory', 'moodle')