Support arbitrary grml2usb options in grml2iso

[grml2usb.git] / grml2iso

diff --git a/grml2iso b/grml2iso
index 1b2cfec..5992992 100755 (executable)
--- a/grml2iso
+++ b/grml2iso
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Filename:      grml2iso
 # Purpose:       create a multiboot grml ISO using grml2usb
 # Authors:       Michael Prokop <mika@grml.org>,
@@ -6,10 +6,6 @@
 # Bug-Reports:   see http://grml.org/bugs/
 # License:       This file is licensed under the GPL v2 or any later version.
 ################################################################################
-# TODO:
-# * support isolinux as bootloader on the ISO
-# * support setting grml2usb options (e.g. --bootoptions=...)
-################################################################################
 
 # define function getfilesize before "set -e" {{{
   if stat --help >/dev/null 2>&1; then
@@ -24,13 +20,33 @@
   [ -n "$GRML2USB" ] || GRML2USB='grml2usb'
 # work directory for creating the filesystem
   [ -n "$WRKDIR" ]   || WRKDIR='/tmp/grml2iso.tmp'
+# support mkisofs as well as genisoimage
+  if which mkisofs >/dev/null 2>&1; then
+    MKISOFS='mkisofs'
+  elif which genisoimage >/dev/null 2>&1; then
+    MKISOFS='genisoimage'
+  else
+    echo >&2 "Error: neither mkisofs nor genisoimage available - can not create ISO."
+    exit 1
+fi
 # }}}
 
 # helper stuff {{{
   set -e
 
   usage() {
-    echo >&2 "Usage: $0 -o target.iso source1.iso [source2.iso ...]"
+    echo >&2 "Usage: $0 [OPTIONS] -o target.iso source1.iso [source2.iso ...]"
+    echo >&2 "
+Options:
+     -b Boot Params      Additional boot parameters passed to grml2usb
+     -c Directory        Copy files from directory to generated iso
+     -f                  Force overwrite of existing target.iso
+     -r BootParam        Remove specified boot params.
+                         Could be specfied multiple times.
+     -p <grml2usb param> Add the specified parameter to the grml2usb
+                         commandline. For a list of valid parameters have
+                         a look at the grml2usb manpage.
+"
     [ -n "$1" ] && exit $1 || exit 1
   }
 # }}}
@@ -39,9 +55,18 @@
   [[ $# -gt 2 ]] || usage 1
 
   ISOFILE=''
-  while getopts ao: name; do
+  DIR=''
+  ADD_OPTS=''
+  FORCE=''
+  typeset -a GRML2USB_OPTS
+  while getopts fb:c:o:r:p: name; do
     case $name in
       o)   ISOFILE="$OPTARG";;
+      b)   GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
+      c)   DIR="$OPTARG";;
+      f)   FORCE='true';;
+      r)   GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
+      p)   GRML2USB_OPTS+=("$OPTARG");;
       ?)   usage 2;;
     esac
   done
@@ -50,12 +75,15 @@
   [ -n "$ISOFILE" ] || usage 1
 
 # we don't to override any files by accident
-  if [ -e "$ISOFILE" ]; then
+  if [ -e "$ISOFILE" -a ! -n "$FORCE" ]; then
     echo "Error: target file $ISOFILE exists already." >&2
     exit 1
   fi
 
-  shift $(($OPTIND - 1))
+  if [ ! -z "$DIR" -a ! -d "$DIR" ] ; then
+     echo "Error: specified parameter for -c is not a directory" >&2
+     exit 1
+  fi
 # }}}
 
 # we need root permissions for executing grml2usb {{{
@@ -65,6 +93,17 @@
   fi
 # }}}
 
+# check for grml2usb {{{
+  if [ ! -x "$(which $GRML2USB)" ] || [ ! -x "$GRML2USB" ] ; then
+    echo >&2 "Error: Could not find grml2usb"
+    if [ -x "./$GRML2USB" ] ; then
+      echo >&2 "If you executed grml2iso from the grml2usb repository use"
+      echo >&2 "GRML2USB=./grml2usb $0 $*"
+    fi
+    exit 1
+  fi
+# }}}
+
 # variables {{{
   ORIG_DIR="$(pwd)"
   # note: grub-pc_1.96+20090603-1 seems to be b0rken
@@ -84,9 +123,13 @@
 # }}}}
 
 # execute grml2usb with all ISOs you'd like to install {{{
-  $GRML2USB "$@" "$WRKDIR/cddir"
+  # remove all parameters
+  shift $(($OPTIND - 1))
+
+  $GRML2USB "${GRML2USB_OPTS[@]}" "$@" "$WRKDIR/cddir"
 # }}}
 
+
 # move syslinux to isolinux {{{
   mv "$WRKDIR"/cddir/boot/syslinux "$WRKDIR"/cddir/boot/isolinux
 
@@ -95,8 +138,16 @@
   echo "include hd.cfg" >> boot/isolinux/grmlmain.cfg
 # }}}
 
+# copy specified directory to cd {{{
+  if [ -n "$DIR" ] ; then
+     echo >&2 "Copying ${DIR} to generated iso"
+     rsync -a ${DIR}/ .
+  fi
+
+# }}}
+
 # generate the CD/DVD ISO {{{
-  mkisofs -V 'grml-multiboot' -l -r -J -no-pad \
+  $MKISOFS -V 'grml-multiboot' -l -r -J -no-pad \
     -no-emul-boot -boot-load-size 4 -boot-info-table \
     -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
     -o "$ISOFILE" .