Change update.sh to munge "4.0" into "4.0.0" so we keep the "4.0.0" tag when "4.0.1" comes around

Author: tianon

Dockerfile

@@ -36,7 +36,7 @@ RUN rm -rf /var/www/html && mkdir /var/www/html
 VOLUME /var/www/html
 WORKDIR /var/www/html
 
-ENV WORDPRESS_VERSION 4.0
+ENV WORDPRESS_VERSION 4.0.0
 
 # upstream tarballs include ./wordpress/ so this gives us /usr/src/wordpress
 RUN curl -SL http://wordpress.org/wordpress-$WORDPRESS_VERSION.tar.gz | tar -xzC /usr/src/

update.sh

@@ -3,4 +3,10 @@ set -e
 
 current="$(curl -sSL 'http://api.wordpress.org/core/version-check/1.7/' | sed -r 's/^.*"current":"([^"]+)".*$/\1/')"
 
-sed -ri 's/^(ENV WORDPRESS_VERSION ).*/\1'"$current"'/' Dockerfile
+if [[ "$current" != *.*.* ]]; then
+	# turn "4.0" into "4.0.0"
+	current+='.0'
+fi
+
+set -x
+sed -ri 's/^(ENV WORDPRESS_VERSION) .*/\1 '"$current"'/' Dockerfile