Improved commenting

src/modules/site/migrate/ee_mod_migrate_data.sh

@@ -7,6 +7,8 @@ function ee_mod_migrate_data()
 
   ee_lib_echo "Copying webroot from $EE_REMOTE_SERVER, please wait..."
 
+  # For Wordpress site we will migrate wp-config.php from parent folder of webroot
+  # For MySQL site we will migrate ee-config.php from parent folder of webroot
   if [ "$EE_SITE_CREATE_OPTION" = "--wp" ] || [ "$EE_SITE_CREATE_OPTION" = "--wpsubdir" ] || [ "$EE_SITE_CREATE_OPTION" = "--wpsubdomain" ]; then
     EE_SITE_CONFIG=wp-config.php
   elif [ "$EE_SITE_CREATE_OPTION" = "--mysql" ]; then
@@ -22,6 +24,7 @@ function ee_mod_migrate_data()
       EE_MIGRATE_CMD1="rsync -avz --progress $EE_REMOTE_USER@$EE_REMOTE_SERVER:$EE_REMOTE_PATH/ /ee-backup/$EE_DOMAIN/"
       EE_MIGRATE_CMD2="rsync -avz --progress $EE_REMOTE_USER@$EE_REMOTE_SERVER:$EE_REMOTE_PATH/../$EE_SITE_CONFIG /ee-backup/$EE_DOMAIN/"
     fi
+  # Copy webroot using sftp with the help of lftp
   elif [ "$EE_REMOTE_METHOD" == "sftp" ]; then
     if [ "$EE_REMOTE_PASSWORD" != "" ]; then
       EE_MIGRATE_CMD1="lftp -e \"mirror --verbose -c $EE_REMOTE_PATH /ee-backup/$EE_DOMAIN; quit\" -u \"$EE_REMOTE_USER,$EE_REMOTE_PASSWORD\" sftp://$EE_REMOTE_SERVER"
@@ -30,6 +33,7 @@ function ee_mod_migrate_data()
       EE_MIGRATE_CMD1="lftp -e \"mirror --verbose -c $EE_REMOTE_PATH /ee-backup/$EE_DOMAIN; quit\" -u \"$EE_REMOTE_USER\" sftp://$EE_REMOTE_SERVER"
       EE_MIGRATE_CMD2="lftp -e \"get -c $EE_REMOTE_PATH/../$EE_SITE_CONFIG; quit\" -u \"$EE_REMOTE_USER\" ftp://$EE_REMOTE_SERVER"
     fi
+  # Copy webroot using ftp with the help of lftp
   elif [ "$EE_REMOTE_METHOD" == "ftp" ]; then
     if [ "$EE_REMOTE_PASSWORD" != "" ]; then
       EE_MIGRATE_CMD1="lftp -e \"mirror --verbose -c $EE_REMOTE_PATH /ee-backup/$EE_DOMAIN; quit\" -u \"$EE_REMOTE_USER,$EE_REMOTE_PASSWORD\" ftp://$EE_REMOTE_SERVER"
@@ -40,10 +44,16 @@ function ee_mod_migrate_data()
     fi
   fi
 
+  # eval: Execute arguments as a shell command.
+  # Why eval?: direct executing Varibale as command adding some extra characters to command
+  # Like quote is command is not working, that is why used eval
+  # For more info: help eval
+
   eval $EE_MIGRATE_CMD1 \
   || ee_lib_error "Unable to migrate data using rsync, exit status = " $?
   if [ ! -f /ee-backup/$EE_DOMAIN/wp-config.php ] && [ "$EE_SITE_CREATE_OPTION" != "--html" ] && [ "$EE_SITE_CREATE_OPTION" != "--php" ]; then
+    # In case of Wordpress site, If site don't have wp-config.php then try to copy wp-config.php from parent folder of webroot
+    # In case of MySQL site, try to copy ee-config.php from parent folder of webroot, (Hope remote server is using EE :P)
     eval $EE_MIGRATE_CMD2 &>> $EE_COMMAND_LOG
   fi
-
 }

src/modules/site/migrate/ee_mod_migrate_setup.sh

@@ -2,7 +2,7 @@
 
 function ee_mod_migrate_setup()
 {
-  # Copy data
+  # Copy data from backup to webroot
   ee_lib_echo "Copying data from /ee-backup to webroot, please wait..."
   cp -a /ee-backup/$EE_DOMAIN/* /var/www/$EE_DOMAIN/htdocs/ \
   || ee_lib_error "Unable to copy backup data to site webroot, exit status = " $?
@@ -34,7 +34,6 @@ function ee_mod_migrate_setup()
       rm /var/www/$EE_DOMAIN/htdocs/ee-config.php
     fi
     if [ "$EE_MYSQL_PATH" != "" ]; then
-
       EE_DB_NAME=$(grep DB_NAME /var/www/$EE_DOMAIN/ee-config.php | cut -d"'" -f4)
       # Import database
       ee_lib_echo "Importing database, please wait..."