From 1b8b9da24e1337fcea57bcef67a45e35defba78b Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Tue, 29 Dec 2009 19:09:03 -0200
Subject: Checking for existing installations on drupal script

---
 templates/drupal.sh.erb | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/templates/drupal.sh.erb b/templates/drupal.sh.erb
index e5956c8..34a6198 100644
--- a/templates/drupal.sh.erb
+++ b/templates/drupal.sh.erb
@@ -7,10 +7,18 @@ BASE="<%= apache_www_folder %>"
 SERIES="5 6"
 
 # Get drupal major version
-function get_major {
+function drupal_get_major {
   echo $1 | sed -e 's/\(^.\).*/\1/'
 }
 
+# Check for existing installations
+function drupal_check_existing {
+  if [ -e "$BASE/drupal-$1" ]; then
+    echo "Folder $BASE/drupal-$1 already exist, skipping"
+    exit 1
+  fi  
+}
+
 # Deploy a fresh drupal tree
 function drupal_deploy {
   if [ "$#" != "1" ]; then
@@ -21,6 +29,7 @@ function drupal_deploy {
   # Setup
   new="$1"
   cd $BASE
+  drupal_check_existing $new
 
   # Deploy a fresh drupal tree
   wget http://ftp.drupal.org/files/projects/drupal-$new.tar.gz
@@ -32,8 +41,14 @@ function drupal_deploy {
 # Update all drupal instances in the host
 function drupal_update {
   for version in $SERIES; do
-    # Setup base and sites folders
+    # Setup base folder
     base="$BASE/drupal-$version"
+
+    if [ ! -d "$base/sites" ]; then
+      break
+    fi
+
+    # Setup site folders
     cd $base/sites
     drupals="`ls -I default -I all`"
   
@@ -62,14 +77,16 @@ function drupal_upgrade {
   # Setup
   old="$1"
   new="$2"
-  old_major="`get_major $old`"
-  new_major="`get_major $new`"
+  old_major="`drupal_get_major $old`"
+  new_major="`drupal_get_major $new`"
   extra_folders=""
   
   if [ "$old_major" != "$new_major" ]; then
     echo "Major versions doesn't match"
     exit 1
   fi
+
+  drupal_check_existing $new
   
   # Set drupal series
   if [ "$new_major" == "4" ]; then
-- 
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