+##############
+
+sep
+
+echo Adding site avenger packages to composer.
+# add in site avenger dependencies so we can build avcore properly.
+pushd ~ &>/dev/null
+sudo -u $(logname) composer config -g repositories.siteavenger composer https://packages.siteavenger.com/
+popd &>/dev/null
+
+##############
+
+# make the apache umask set group permissions automatically, so we stop having weird
+# permission issues on temp dirs.
+
+sep
+
+grep -q "umask" /etc/apache2/envvars
+if [ $? -eq 0 ]; then
+ # already present.
+ echo the umask configuration for apache already appears to be set.
+else
+ echo "
+
+# set umask to enable group read/write on files and directories.
+umask 002
+
+" >> /etc/apache2/envvars
+ restart_apache
+ echo "successfully changed apache umask configuration to enable group read/write"
+fi
+