- refactored marc's kupdate.sh into a new script kvariant.sh

[bootcd.git] / build.sh

diff --git a/build.sh b/build.sh
index 60e7295..cfce5e2 100755 (executable)
--- a/build.sh
+++ b/build.sh
@@ -10,6 +10,8 @@
 # $Id$
 #
 
+COMMAND=$(basename $0)
+DIRNAME=$(dirname $0)
 PATH=/sbin:/bin:/usr/sbin:/usr/bin
 
 # defaults
@@ -77,22 +79,28 @@ function pop_cleanup() {
 function init_and_check () {
 
     # Change to our source directory
-    local srcdir=$(cd $(dirname $0) && pwd -P)
+    local srcdir=$(cd $DIRNAME && pwd -P)
     pushd $srcdir
 
     # Root of the isofs
-    ISOREF=$PWD/build
+    ISOREF=$PWD/${VARIANT}
 
     # The reference image is expected to have been built by prep.sh (see .spec)
     # we disable the initial logic that called prep.sh if that was not the case
     # this is because prep.sh needs to know pldistro 
     if [ ! -f $ISOREF/isofs/bootcd.img -o ! -f $ISOREF/version.txt ] ; then
-       echo "You have to run prep.sh prior to calling $0 - exiting"
+       echo "Could not find isofs and version.txt in $ISOREF"
+       if [ "$VARIANT" == "build" ] ; then
+           echo "You have to run prep.sh prior to calling $COMMAND"
+       else
+           echo "You need to create your variant image, see kvariant.sh"
+       fi
+       echo "Exiting .."
        exit 1
     fi
 
     # build/version.txt written by prep.sh
-    BOOTCD_VERSION=$(cat build/version.txt)
+    BOOTCD_VERSION=$(cat ${VARIANT}/version.txt)
 
     if [ -f /etc/planetlab/plc_config ] ; then
         # Source PLC configuration
@@ -116,7 +124,7 @@ function init_and_check () {
 # it seems that this feature has not been used nor tested in a long time, use with care
 
 usage() {
-    echo "Usage: build.sh [OPTION]..."
+    echo "Usage: $COMMAND [OPTION]..."
     echo "    -f plnode.txt    Node to customize CD for (default: none)"
     echo "    -t 'types'       Build the specified images (default: $DEFAULT_TYPES)"
     echo "                     NOTE: mentioning 'serial' as part of the type is not supported anymore"
@@ -130,6 +138,7 @@ usage() {
     echo "                     can be a full path"
     echo "    -o output-name   The full name of the generated file"
     echo "    -C custom-dir    Custom directory"
+    echo "    -V variant       Use a variant - see kvariant.sh"
     echo "    -n               Dry run - mostly for debug/test purposes"
     echo "    -k               Add additional parameters to the kargs.txt file"
     echo "    -h               This message"
@@ -143,7 +152,7 @@ function parse_command_line () {
     # init
     TYPES=""
     # Get options
-    while getopts "f:t:as:SO:o:C:k:nh" opt ; do
+    while getopts "f:t:as:SO:o:C:V:k:nh" opt ; do
        case $opt in
            f) NODE_CONFIGURATION_FILE=$OPTARG ;;
            t) TYPES="$TYPES $OPTARG" ;;
@@ -153,6 +162,7 @@ function parse_command_line () {
            O) OUTPUT_BASE="$OPTARG" ;;
            o) OUTPUT_NAME="$OPTARG" ;;
            C) CUSTOM_DIR="$OPTARG" ;;
+           V) VARIANT="$OPTARG" ;;
            k) KARGS_STR="$KARGS_STR $OPTARG" ;;
            n) DRY_RUN=true ;;
            h|*) usage ;;
@@ -161,6 +171,7 @@ function parse_command_line () {
 
     # use defaults if not set
     [ -z "$TYPES" ] && TYPES="$DEFAULT_TYPES"
+    [ -z "$VARIANT" ] && VARIANT="build"
     [ "$CONSOLE_INFO" == "default" ] && CONSOLE_INFO=$SERIAL_CONSOLE
 
     # check TYPES 
@@ -297,7 +308,7 @@ EOF
     fi
 
     # build/passwd copied out by prep.sh
-    sed -e "s@^root:[^:]*:\(.*\)@root:$ROOT_PASSWORD:\1@" build/passwd >$OVERLAY/etc/passwd
+    sed -e "s@^root:[^:]*:\(.*\)@root:$ROOT_PASSWORD:\1@" ${VARIANT}/passwd >$OVERLAY/etc/passwd
 
     # Install node configuration file (e.g., if node has no floppy disk or USB slot)
     if [ -f "$NODE_CONFIGURATION_FILE" ] ; then
@@ -532,7 +543,7 @@ EOF
     # generate pl_rsysinit
     cat > etc/rc.d/init.d/pl_rsysinit <<EOF
 #!/bin/sh
-# generated by build.sh
+# generated by $COMMAND
 echo -n "pl_rsysinit: preparing /etc and /var for pl_sysinit..."
 mount -t tmpfs -orw,size=${msize}M,mode=1777 tmpfs /tmp
 mkdir -p /tmp/root
@@ -683,10 +694,10 @@ function build_types () {
 #################### 
 function main () {
 
-    init_and_check
-
     parse_command_line "$@"
 
+    init_and_check
+
     echo "* Building images for $FULL_VERSION_STRING"
     # Do not tolerate errors
     set -e