From 8fe5878427767b06abc9378137f2c826fe610d8d Mon Sep 17 00:00:00 2001
From: Thomas Bächler <thomas@archlinux.org>
Date: Tue, 24 Oct 2006 08:59:18 +0000
Subject: - Preset changes to better config file format - Global kver for all
 images in a preset - Allow comments (#) in kernel commandline

git-svn-id: http://projects.archlinux.org/svn/initramfs/mkinitcpio@182 880c04e9-e011-0410-abf7-b926e227c9cd
---
 init                        |  1 +
 mkinitcpio                  | 34 ++++++++++++++++++++++++++++------
 mkinitcpio.d/example.preset | 27 ++++++++++++++++++---------
 3 files changed, 47 insertions(+), 15 deletions(-)

diff --git a/init b/init
index a1a7793..20d902e 100644
--- a/init
+++ b/init
@@ -18,6 +18,7 @@ echo "/bin/modprobe" > /proc/sys/kernel/modprobe
 
 for cmd in $CMDLINE; do
     case "$cmd" in
+        \#*) break ;; # ignore everything after a # in the commandline
         [0123456Ss]) export runlevel="$cmd" ;;
         single) export runlevel="S" ;; #some people use 'single'
         # replace can cause problems for the following entries
diff --git a/mkinitcpio b/mkinitcpio
index 90eef75..70f848c 100644
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -86,15 +86,37 @@ shift $(($OPTIND - 1))
 if [ -n "${PRESET}" ]; then
     if [ -f "${PRESETDIR}/${PRESET}.preset" ]; then
         # Use -b and -v options specified earlier
-        PRESET_MKOPTS=""
+        PRESET_MKOPTS="${0}"
         [ -n "${BASEDIR}" ] && PRESET_MKOPTS="${PRESET_MKOPTS} -b ${BASEDIR}"
         [ "${QUIET}" = "n" ] && PRESET_MKOPTS="${PRESET_MKOPTS} -v"
         # Build all images
         source ${PRESETDIR}/${PRESET}.preset
-        for ((i=0; i<${PRESET_N}; ++i)); do
-            [ -z "${PRESET_NAME[${i}]}" -o -z "${PRESET_KVER[${i}]}" -o -z "${PRESET_CONFIG[${i}]}" -o -z "${PRESET_IMAGE[${i}]}" ] && continue
-            echo "==> Building image \"${PRESET_NAME[${i}]}\""
-            PRESET_CMD="${0} -c ${PRESET_CONFIG[${i}]} -k ${PRESET_KVER[${i}]} -g ${PRESET_IMAGE[${i}]} ${PRESET_MKOPTS}"
+        for p in ${PRESETS[@]}; do
+            echo "==> Building image \"${p}\""
+            PRESET_CMD="${PRESET_MKOPTS}"
+            eval "PRESET_KVER=\"\${${p}_kver}\""
+            eval "PRESET_CONFIG=\"\${${p}_config}\""
+            eval "PRESET_IMAGE=\"\${${p}_image}\""
+            if [ -n "${PRESET_KVER}" ]; then
+                PRESET_CMD="${PRESET_CMD} -k ${PRESET_KVER}"
+            elif [ -n "${ALL_kver}" ]; then
+                PRESET_CMD="${PRESET_CMD} -k ${ALL_kver}"
+            else
+                echo "==> No kernel version specified. Skipping image \"${p}\"."
+                continue
+            fi
+            if [ -n "${PRESET_CONFIG}" ]; then
+                PRESET_CMD="${PRESET_CMD} -c ${PRESET_CONFIG}"
+            else
+                echo "==> No configuration file specified. Skipping image \"${p}\"."
+                continue
+            fi
+            if [ -n "${PRESET_IMAGE}" ]; then
+                PRESET_CMD="${PRESET_CMD} -g ${PRESET_IMAGE}"
+            else
+                echo "==> No image file specified. Skipping image \"${p}\"."
+                continue
+            fi
             echo "==> Running command: ${PRESET_CMD}"
             if ${PRESET_CMD}; then
                 echo "==> SUCCESS"
@@ -190,7 +212,7 @@ for hook in $HOOKS; do
 done
 
 if [ "${HAS_MODULES}" == "y" ]; then
-    echo ":: Generating module dependancies"
+    echo ":: Generating module dependencies"
     for mod in $(grep "file /lib/modules/${KERNELVERSION}" ${FILELIST} | cut -d' ' -f2); do
         dir=$(dirname "${mod}")
         mkdir -p "/tmp/${dir}"
diff --git a/mkinitcpio.d/example.preset b/mkinitcpio.d/example.preset
index 3dabdae..b283815 100644
--- a/mkinitcpio.d/example.preset
+++ b/mkinitcpio.d/example.preset
@@ -1,13 +1,22 @@
 # Example mkinitcpio preset file
 
-PRESET_N=2
+# preset names
+PRESETS=('default' 'fallback')
 
-PRESET_NAME[0]="default"
-PRESET_KVER[0]="2.6.18-ARCH"
-PRESET_CONFIG[0]="/etc/mkinitcpio.conf"
-PRESET_IMAGE[0]="/tmp/kernel26.img"
+# ALL_kver is used if presetname_kver is not set
+# note for distribution kernels: this should be in a separate file
+# and read like this:
+# source /etc/mkinitcpio.d/exmaple.kver
+ALL_kver='2.6.18-ARCH'
 
-PRESET_NAME[1]="fallback"
-PRESET_KVER[1]="2.6.18-ARCH"
-PRESET_CONFIG[1]="/boot/mkinitcpio-kernel26.conf"
-PRESET_IMAGE[1]="/tmp/kernel26-fallback.img"
+# presetname_kver specifies the kernel version (omit if ALL_kver should be used)
+# presetname_config specifies the configuration file
+# presetname_image specifies the image to be generated
+
+#default_kver="2.6.18-ARCH"
+default_config="/etc/mkinitcpio.conf"
+default_image="/tmp/kernel26.img"
+
+#fallback_kver="2.6.18-ARCH"
+fallback_config="/etc/mkinitcpio.d/mkinitcpio-kernel26-fallback.conf"
+fallback_image="/tmp/kernel26-fallback.img"
-- 
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