Auto-packaging tags into downloadable zips.

.gitlab-ci.yml

-image: php
+stages:
+  - test
+  - release
 
-before_script:
-- apt-get update -yqq
-- apt-get install -yqq git curl ca-certificates libxml2-dev
-- docker-php-ext-install mbstring xml
-- curl https://phar.phpunit.de/phpunit-7.5.1.phar -L -o phpunit.phar
-- chmod +x phpunit.phar
-- mv phpunit.phar /usr/local/bin/phpunit
-- git clone git://github.com/splitbrain/dokuwiki.git
-- pushd dokuwiki/lib/plugins
-- ln -s $CI_PROJECT_DIR ifauthex
-- popd
+unit_test:
+  stage: test
+  image: php
+  before_script:
+    - apt-get update -yqq
+    - apt-get install -yqq git curl ca-certificates libxml2-dev
+    - docker-php-ext-install mbstring xml
+    - curl https://phar.phpunit.de/phpunit-7.5.1.phar -L -o phpunit.phar
+    - chmod +x phpunit.phar
+    - mv phpunit.phar /usr/local/bin/phpunit
+    - git clone git://github.com/splitbrain/dokuwiki.git
+    - pushd dokuwiki/lib/plugins
+    - ln -s $CI_PROJECT_DIR $PLUGIN_NAME
+    - popd
+  script:
+    - cd dokuwiki/_test
+    - phpunit --stderr --group plugin_$PLUGIN_NAME
+  variables:
+    PLUGIN_NAME: ifauthex
 
-test:
+package:
+  image: alpine
+  stage: release
+  only:
+    - tags
+  before_script:
+    - apk --update --no-cache add zip
   script:
-  - cd dokuwiki/_test
-  - phpunit --stderr --group plugin_ifauthex
\ No newline at end of file
+    - zip -r $PLUGIN_NAME.zip *
+  artifacts:
+    paths:
+      - "$PLUGIN_NAME.zip"
+  variables:
+    GIT_STRATEGY: clone
+    PLUGIN_NAME: ifauthex