Reword replication script comment

[chef.git] / cookbooks / tile / templates / default / replicate.erb

diff --git a/cookbooks/tile/templates/default/replicate.erb b/cookbooks/tile/templates/default/replicate.erb
index e1ecab695d27ba0a68ac8c5b864076713c394207..37925c52fd90dceaf81db005c09c3a6c10e80763 100644 (file)
--- a/cookbooks/tile/templates/default/replicate.erb
+++ b/cookbooks/tile/templates/default/replicate.erb
@@ -2,9 +2,10 @@
 
 # DO NOT EDIT - This file is being maintained by Chef
 
-# Initialize timestamp with day of latest planet dump
-# Setting to midnight ensures we get conistent data after first run
-# osmosis --read-replication-interval-init
+# Before running updates, the replication needs to be set up with the timestamp
+# set to the day of the latest planet dump. Setting to midnight ensures we get
+# conistent data after first run. osmosis --read-replication-interval-init is
+# used to initially create the state file
 
 # Define exit handler
 function onexit {
@@ -39,31 +40,31 @@ do
     if [ $? -eq 0 ]
     then
         # Enable exit on error
-       set -e
+        set -e
 
         # Remember the previous sequence number
-       prevSequenceNumber=$sequenceNumber
+        prevSequenceNumber=$sequenceNumber
 
         # Read in new state
-       . state.txt
+        . state.txt
 
         # Did we get any new data?
-       if [ "${sequenceNumber}" == "${prevSequenceNumber}" ]
+        if [ "${sequenceNumber}" == "${prevSequenceNumber}" ]
         then
             # Log the lack of data
-           echo "No new data available. Sleeping..."
+            echo "No new data available. Sleeping..."
 
-           # Remove file, it will just be an empty changeset
-           rm ${file}
+            # Remove file, it will just be an empty changeset
+            rm ${file}
 
             # No need to rollback now
             rm state-prev.txt
 
             # Sleep for a short while
-           sleep 30
-       else
+            sleep 30
+        else
             # Log the new data
-           echo "Fetched new data from ${prevSequenceNumber} to ${sequenceNumber} into ${file}"
+            echo "Fetched new data from ${prevSequenceNumber} to ${sequenceNumber} into ${file}"
 
             # Apply the changes to the database
 <% if node[:tile][:node_file] -%>
@@ -77,18 +78,18 @@ do
 
             # Expire tiles which are touched by the changes
             sudo -u www-data /usr/local/bin/expire-tiles ${file} > /dev/null 2>&1 &
-       fi
+        fi
 
         # Delete old downloads
-       find . -name 'changes-*.gz' -mmin +300 -exec rm -f {} \;
+        find . -name 'changes-*.gz' -mmin +300 -exec rm -f {} \;
 
         # Disable exit on error
         set +e
     else
         # Log our failure to fetch changes
-       echo "Failed to fetch changes - waiting a few minutes before retry"
+        echo "Failed to fetch changes - waiting a few minutes before retry"
 
         # Wait five minutes and have another go
-       sleep 300
+        sleep 300
     fi
 done