Formatted Dockerfile to be cleaner and precise

examples/phabricator/php-phabricator/Dockerfile

@@ -15,21 +15,25 @@
 FROM ubuntu:14.04
 
 # Install all the required packages.
-RUN apt-get update
-RUN apt-get -y install \
+RUN apt-get update && \
+  apt-get -y install \
   git apache2 dpkg-dev python-pygments \
-  php5 php5-mysql php5-gd php5-dev php5-curl php-apc php5-cli php5-json php5-xhprof
-RUN a2enmod rewrite
-RUN apt-get source php5
-RUN (cd `ls -1F | grep '^php5-.*/$'`/ext/pcntl && phpize && ./configure && make && sudo make install)
+  php5 php5-mysql php5-gd php5-dev php5-curl php-apc php5-cli php5-json php5-xhprof && \
+  apt-get -y clean autoclean && \
+  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+#Configure php
+RUN a2enmod rewrite && \
+  apt-get source php5 && \
+  (cd `ls -1F | grep '^php5-.*/$'`/ext/pcntl && phpize && ./configure && make && sudo make install)
 
 # Load code source.
 RUN mkdir /home/www-data
-RUN cd /home/www-data && git clone https://github.com/phacility/libphutil.git
-RUN cd /home/www-data && git clone https://github.com/phacility/arcanist.git
-RUN cd /home/www-data && git clone https://github.com/phacility/phabricator.git
-RUN chown -R www-data /home/www-data
-RUN chgrp -R www-data /home/www-data
+RUN cd /home/www-data && git clone https://github.com/phacility/libphutil.git && \
+  cd /home/www-data && git clone https://github.com/phacility/arcanist.git && \
+  cd /home/www-data && git clone https://github.com/phacility/phabricator.git && \
+  chown -R www-data /home/www-data && \
+  chgrp -R www-data /home/www-data
 
 ADD 000-default.conf /etc/apache2/sites-available/000-default.conf
 ADD run.sh /run.sh