MDL-68705 testing: New CLI args to disable composer features

This commit introduces the following new flags:

  --no-composer-self-update   Disable composer self-update of the
                              composer.phar utility

  --no-composer-upgrade       Disable upgrade of development
                              dependencies using Composer.

  --disable-composer          Disable both composer self-update and
                              composer upgrade

admin/tool/behat/cli/init.php

@@ -50,6 +50,9 @@ list($options, $unrecognized) = cli_get_params(
         'optimize-runs' => '',
         'add-core-features-to-theme' => false,
         'axe'      => false,
+        'disable-composer' => false,
+        'composer-upgrade' => true,
+        'composer-self-update' => true,
     ),
     array(
         'j' => 'parallel',
@@ -65,19 +68,36 @@ $help = "
 Behat utilities to initialise behat tests
 
 Usage:
-  php init.php [--parallel=value [--maxruns=value] [--fromrun=value --torun=value]] [--help]
+  php init.php      [--parallel=value [--maxruns=value] [--fromrun=value --torun=value]]
+                    [--axe] [-o | --optimize-runs] [-a | --add-core-features-to-theme]
+                    [--no-composer-self-update] [--no-composer-upgrade]
+                    [--disable-composer]
+                    [--help]
 
 Options:
--j, --parallel   Number of parallel behat run to initialise
--m, --maxruns    Max parallel processes to be executed at one time.
---fromrun        Execute run starting from (Used for parallel runs on different vms)
---torun          Execute run till (Used for parallel runs on different vms)
---axe            Include axe accessibility tests
+-j, --parallel      Number of parallel behat run to initialise
+-m, --maxruns       Max parallel processes to be executed at one time
+--fromrun           Execute run starting from (Used for parallel runs on different vms)
+--torun             Execute run till (Used for parallel runs on different vms)
+--axe               Include axe accessibility tests
 
--o, --optimize-runs Split features with specified tags in all parallel runs.
--a, --add-core-features-to-theme Add all core features to specified theme's
+-o, --optimize-runs
+                    Split features with specified tags in all parallel runs.
 
--h, --help     Print out this help
+-a, --add-core-features-to-theme
+                    Add all core features to specified theme's
+
+--no-composer-self-update
+                    Prevent upgrade of the composer utility using its self-update command
+
+--no-composer-upgrade
+                    Prevent update development dependencies using composer
+
+--disable-composer
+                    A shortcut to disable composer self-update and dependency update
+                    Note: Installation of composer and/or dependencies will still happen as required
+
+-h, --help          Print out this help
 
 Example from Moodle root directory:
 \$ php admin/tool/behat/cli/init.php --parallel=2
@@ -120,8 +140,15 @@ if ($options['parallel'] && $options['parallel'] > 1) {
 $cwd = getcwd();
 $output = null;
 
-// If behat dependencies not downloaded then do it first, else symfony/process can't be used.
-testing_update_composer_dependencies();
+if ($options['disable-composer']) {
+    // Disable self-update and upgrade easily.
+    // Note: Installation will still occur regardless of this setting.
+    $options['composer-self-update'] = false;
+    $options['composer-upgrade'] = false;
+}
+
+// Install and update composer and dependencies as required.
+testing_update_composer_dependencies($options['composer-self-update'], $options['composer-upgrade']);
 
 // Check whether the behat test environment needs to be updated.
 chdir(__DIR__);

admin/tool/phpunit/cli/init.php

@@ -38,8 +38,57 @@ require_once(__DIR__.'/../../../../lib/clilib.php');
 require_once(__DIR__.'/../../../../lib/phpunit/bootstraplib.php');
 require_once(__DIR__.'/../../../../lib/testing/lib.php');
 
+list($options, $unrecognized) = cli_get_params(
+    [
+        'help'                 => false,
+        'disable-composer'     => false,
+        'composer-upgrade'     => true,
+        'composer-self-update' => true,
+    ],
+    [
+        'h' => 'help',
+    ]
+);
+
+$help = "
+Utilities to initialise the PHPUnit test site.
+
+Usage:
+  php init.php [--no-composer-self-update] [--no-composer-upgrade]
+               [--help]
+
+--no-composer-self-update
+                    Prevent upgrade of the composer utility using its self-update command
+
+--no-composer-upgrade
+                    Prevent update development dependencies using composer
+
+--disable-composer
+                    A shortcut to disable composer self-update and dependency update
+                    Note: Installation of composer and/or dependencies will still happen as required
+
+-h, --help          Print out this help
+
+Example from Moodle root directory:
+\$ php admin/tool/phpunit/cli/init.php
+";
+
+if (!empty($options['help'])) {
+    echo $help;
+    exit(0);
+}
+
 echo "Initialising Moodle PHPUnit test environment...\n";
-testing_update_composer_dependencies();
+
+if ($options['disable-composer']) {
+    // Disable self-update and upgrade easily.
+    // Note: Installation will still occur regardless of this setting.
+    $options['composer-self-update'] = false;
+    $options['composer-upgrade'] = false;
+}
+
+// Install and update composer and dependencies as required.
+testing_update_composer_dependencies($options['composer-self-update'], $options['composer-upgrade']);
 
 $output = null;
 exec('php --version', $output, $code);