Install composer before running

.gitlab-ci.yml

@@ -5,6 +5,7 @@ stages:
 
 before_script:
   - "echo 'assume_php=false' > .hhconfig"
+  - ./tests/composer.sh
   - composer install
 
 cache:

tests/composer.sh

+#!/bin/sh
+
+EXPECTED_SIGNATURE=$(wget -q -O - https://composer.github.io/installer.sig)
+php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ACTUAL_SIGNATURE=$(php -r "echo hash_file('SHA384', 'composer-setup.php');")
+
+if [ "$EXPECTED_SIGNATURE" != "$ACTUAL_SIGNATURE" ]
+then
+    >&2 echo 'ERROR: Invalid installer signature'
+    rm composer-setup.php
+    exit 1
+fi
+
+php composer-setup.php --quiet
+RESULT=$?
+rm composer-setup.php
+exit $RESULT