Upgrade Alpine to 3.7 and phpmd. phpcpd

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.6
+FROM alpine:3.7
 
 ARG BUILD_DATE
 ARG VCS_REF
@@ -19,19 +19,22 @@ RUN set -e \
   php7 \
   php7-apcu \
   php7-ctype \
+  php7-dom \
   php7-json \
   php7-mbstring \
   php7-opcache \
   php7-openssl \
   php7-phar \
   php7-simplexml \
   php7-tokenizer \
+  php7-xml \
   php7-xmlwriter \
-  php7-zlib \
   && curl -sS https://getcomposer.org/installer | php -- --filename=composer --install-dir=/usr/bin \
-  && composer global require drupal/coder --update-no-dev --no-suggest --prefer-dist ^8.2 \
+  && composer global require drupal/coder ^8.2 phpmd/phpmd ^2 sebastian/phpcpd ^4 --update-no-dev --no-suggest --prefer-dist \
   && ln -s /root/.composer/vendor/bin/phpcs /usr/bin/phpcs \
   && ln -s /root/.composer/vendor/bin/phpcbf /usr/bin/phpcbf \
+  && ln -s /root/.composer/vendor/bin/phpmd /usr/bin/. \
+  && ln -s /root/.composer/vendor/bin/phpcpd /usr/bin/. \
   && ln -s /root/.composer/vendor/drupal/coder/coder_sniffer/Drupal /root/.composer/vendor/squizlabs/php_codesniffer/CodeSniffer/Standards/Drupal \
   && ln -s /root/.composer/vendor/drupal/coder/coder_sniffer/DrupalPractice /root/.composer/vendor/squizlabs/php_codesniffer/CodeSniffer/Standards/DrupalPractice \
   && cd /root/.composer/vendor/drupal/coder && curl https://www.drupal.org/files/issues/2857856-8.patch | patch -p1 && cd \

build.sh

@@ -5,8 +5,8 @@ set -e -x
 docker build --pull \
   --build-arg BUILD_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"` \
   --build-arg VCS_REF=`git rev-parse --short HEAD` \
-  -t skilldlabs/docker-phpcs-drupal .
+  -t skilldlabs/docker-phpcs-drupal:next .
 
 cd ci
 
-docker build -t skilldlabs/docker-phpcs-drupal:ci .
+#docker build -t skilldlabs/docker-phpcs-drupal:ci .