From 2b91732ec30ee20c6533d0d9719ce0dd83fe3306 Mon Sep 17 00:00:00 2001
From: Dirk von Suchodoletz
Date: Thu, 26 Feb 2009 23:12:52 +0000
Subject: Cleanups, mini-fix and comments ...

git-svn-id: http://svn.openslx.org/svn/openslx/openslx/trunk@2651 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 os-plugins/plugins/vmchooser/files/run-virt.sh | 83 +++++++++++++-------------
 1 file changed, 40 insertions(+), 43 deletions(-)

(limited to 'os-plugins/plugins/vmchooser/files/run-virt.sh')

diff --git a/os-plugins/plugins/vmchooser/files/run-virt.sh b/os-plugins/plugins/vmchooser/files/run-virt.sh
index 8ba8ea75..005bf8f8 100644
--- a/os-plugins/plugins/vmchooser/files/run-virt.sh
+++ b/os-plugins/plugins/vmchooser/files/run-virt.sh
@@ -32,57 +32,58 @@ xml=$1
 # Read needed variables from XML file
 ###############################################################################
 
-# file name of the image
+# File name of the image
 imagename=$(grep -io "<image_name param=.*\"" ${xml} | awk -F "\"" '{ print $2 }')
 diskfile=$imagename
 [ -e $diskfile ] || { echo -e "\n\tImage file $diskfile not found!"; exit 1; }
 
-# short description of the image (as present in the vmchooser menu line)
+# Short description of the image (as present in the vmchooser menu line)
 short_description=$(grep -o "short_description param=.*\"" ${xml} | \
   sed -e "s/&.*;/; /g" | awk -F "\"" '{print $2}')
-# if ${short_description} not defined use ${image_name}
+# If ${short_description} not defined use ${image_name}
 short_description=${short_description:-"${image_name}"}
 displayname=${short_description}
 
-# type of virtual machine to run
+# Type of virtual machine to run
 virt_mach=$(grep -o "virtualmachine param=.*\"" ${xml} | \
   sed -e "s/&.*;/; /g" | awk -F "\"" '{print $2}')
 
-# make a guess from the filename extension if ${virt_mach} is empty (not set
+# Make a guess from the filename extension if ${virt_mach} is empty (not set
 # within the xml file)
 if [ -z ${virt_mach} ] ; then
-  case "${imagename##*.}" in
-    vmdk|VMDK)
+  case "$(echo ${imagename##*.}|tr [A-Z] [a-z])" in
+    vmdk)
       virt_mach="vmware"
     ;;
-    img|IMG|qcow*|QCOW*)
+    img|qcow*)
       virt_mach="qemukvm"
     ;;
-    vbox|VBOX)
-      virt_mach="qemukvm"
+    vbox)
+      virt_mach="virtualbox"
+    ;;
+    *)
+      echo "Unknown image type, bailing out"
     ;;
   esac
 fi
 
-# definition of the client system
+# Definition of the client system
 vmostype=$(grep -io "<os param=.*\"" ${xml} | awk -F "\"" '{ print $2 }')
 
-# definition of the networking the client system is connected to
+# Definition of the networking the client system is connected to
 network_kind=$(grep -io "<network param=.*\"" ${xml} | awk -F "\"" '{ print $2 }')
 
-# serial port defined (e.g. "ttyS0" or "autodetect")
+# Serial port defined (e.g. "ttyS0" or "autodetect")
 serial=$(grep -io "<serial port=.*\"" ${xml} | awk -F "\"" '{ print $2 }')
 
 
-# declaration of default variables
+# Declaration of default variables
 ###############################################################################
 
-# standard variables
-
-# get total amount of memory installed in your machine
+# Get total amount of memory installed in your machine
 totalmem=$(expr $(grep -i "memtotal" /proc/meminfo | awk '{print $2}') / 1024)
 
-# configuring ethernet mac address: first four bytes are fixed (00:50:56:0D) 
+# Configuring ethernet mac address: first four bytes are fixed (00:50:56:0D) 
 # the last two bytes are taken from the first local network adaptor of the host
 # system
 mac=$(/sbin/ifconfig eth0 | grep eth0 | sed -e "s/ //g" \
@@ -90,42 +91,38 @@ mac=$(/sbin/ifconfig eth0 | grep eth0 | sed -e "s/ //g" \
 
 echo "$totalmem, $mac"
 
-# virtual fd/cd/dvd and drive devices, floppy b: for configuration
-#floppya is always false, if we have a floppy device or not isn't
-#important.
+# Virtual fd/cd/dvd and drive devices, floppy b: for configuration file (xml)
 floppya="FALSE"
 floppyb="TRUE"
 floppybname="/etc/vmware/loopimg/fd.img"
 cdr_1="FALSE"
 cdr_2="FALSE"
-# ide is expected default, test for the virtual disk image type should
+# IDE is expected default, test for the virtual disk image type should
 # be done while creating the runscripts ...
 ide="TRUE"
 scsi="FALSE"
 hddrv="ide"
 
-# display resolution
+# Display resolution within the host system
 hostres=$(xvidtune -show 2>/dev/null| grep -ve "^$")
 xres=$(echo "${hostres}" | awk '{print $3}')
 yres=$(echo "${hostres}" | awk '{print $7}')
 
-# set hostname: using original hostname and adding string "-vm"
+# Set hostname: using original hostname and adding string "-vm"
 hostname="VM-${HOST}"
 
-# functions used throughout the script
+# Functions used throughout the script
 ###############################################################################
 
-# check for files
+# Check for important files used
 filecheck ()
 {
   filecheck=$(LANG=us ls -lh ${diskfile} 2>&1)
   writelog "Filecheck:\n${filecheck}\n"
-  #TODO: don't understand the sence in it
   noimage=$(echo ${filecheck} | grep -i "no such file or directory" | wc -l)
   rightsfile=${diskfile}
 
   # check if link
-  # TODO: mistake with 2nd rightsfile if its in another directory?
   if [ -L "${diskfile}" ]; then
     # take link target
     rightsfile=$(ls -lh ${diskfile} 2>&1 | awk -F "-> *" '{print $2}')
@@ -144,7 +141,7 @@ filecheck ()
     exit 1
   fi
 
-  # readable?
+  # readable by calling user
   if ! [ -r "${diskfile}" >/dev/null 2>&1 \
     -o -r "${diskfile}" >/dev/null 2>&1 ]; then
     writelog "Vmware Image Problem:\c "
@@ -168,35 +165,35 @@ filecheck ()
   fi
 }
 
-# function to write to stdout and logfile
+# Function to write to stdout and logfile
 writelog ()
 {
-  # write to stdout
+  # Write to stdout
   echo -e "$1"
 
-  # log into file
+  # Log into file
   echo -e "$1" >>run-virt.log
 }
 
-# setup the rest of the environment and run the virtualization tool just confi-
+# Setup the rest of the environment and run the virtualization tool just confi-
 # gured
 ################################################################################
 
 # The PATH...
 export PATH="${PATH}:/var/X11R6/bin:/usr/X11R6/bin"
 
-# logo for console
+# Logo for console
 cat <<EOL
 
-     .----.--.--.-----.--.--.--------.--.--.--.---.-.----.-----.
-     |   _|  |  |     |  |  |        |  |  |  |  _  |   _|  -__|
-     |__| |_____|__|__|\___/|__|__|__|________|___._|__| |_____|
-         Script for preparing virtual machine environment ...
+        .----.--.--.-----.--.--.--.----.-----.
+        |   _|  |  |     |  |  |  |   _|_   _|
+        |__| |_____|__|__|\___/|__|__|   |_|
+OpenSLX script for preparing virtual machine environment ...
 
 EOL
 
 
-# adjust volume
+# Adjust sound volume
 writelog "Unmuting sound...\c "
 amixer -q sset Master 28 unmute 2>/dev/null
 amixer -q sset PCM 28 unmute 2>/dev/null
@@ -204,14 +201,14 @@ amixer -q sset Headphone 28 unmute 2>/dev/null
 amixer -q sset Front 0 mute 2>/dev/null
 writelog "finished\n"
 
-# copy guest configuration config.xml to be accessed via virtual floppy
+# Copy guest configuration (with added information) config.xml to be accessed
+# via virtual floppy
 cp ${xml} /var/lib/virt/vmchooser/fd-loop/config.xml
 
-# check if virtual machine container file exists
+# Check if virtual machine container file exists
 filecheck
 
-
-# get all virtual machine specific stuff from the respective include file
+# Get all virtual machine specific stuff from the respective include file
 if [ -e /etc/opt/openslx/run-${virt_mach}.include ] ; then
   . /etc/opt/openslx/run-${virt_mach}.include
   ${VIRTCMD} ${VIRTCMDOPTS}
-- 
cgit v1.2.3-55-g7522