add mkinitrd-dracut.sh wrapper

a wrapper around dracut with the syntax from mkinitrd, could
help transition to dracut.

diff --git a/mkinitrd-dracut.sh b/mkinitrd-dracut.sh
new file mode 100644 (file)
index 0000000..64b3069
--- /dev/null
+++ b/mkinitrd-dracut.sh
@@ -0,0 +1,150 @@
+#!/bin/bash --norc
+
+error() {
+    local NONL=""
+    if [ "$1" == "-n" ]; then
+        NONL="-n"
+        shift
+    fi
+    echo $NONL "$@" > /dev/stderr
+}
+
+usage () {
+    if [ "$1" == "-n" ]; then
+        cmd=echo
+    else
+        cmd=error
+    fi
+
+    $cmd "usage: `basename $0` [--version] [--help] [-v] [-f] [--preload <module>]"
+    $cmd "       [--image-version] [--with=<module>]"
+    $cmd "       <initrd-image> <kernel-version>"
+    $cmd ""
+    $cmd "       (ex: `basename $0` /boot/initramfs-$(uname -r).img $(uname -r))"
+
+    if [ "$1" == "-n" ]; then
+        exit 0
+    else
+        exit 1
+    fi
+}
+
+
+while [ $# -gt 0 ]; do
+    case $1 in
+        --with-usb*)
+            if [ "$1" != "${1##--with-usb=}" ]; then
+                usbmodule=${1##--with-usb=}
+            else
+                usbmodule="usb-storage"
+            fi
+            basicmodules="$basicmodules $usbmodule"
+            unset usbmodule
+            ;;
+        --with-avail*)
+            if [ "$1" != "${1##--with-avail=}" ]; then
+                modname=${1##--with-avail=}
+            else
+                modname=$2
+                shift
+            fi
+
+            basicmodules="$basicmodules $modname"
+            ;;
+        --with*)
+            if [ "$1" != "${1##--with=}" ]; then
+                modname=${1##--with=}
+            else
+                modname=$2
+                shift
+            fi
+
+            basicmodules="$basicmodules $modname"
+            ;;
+        --version)
+            echo "mkinitrd: dracut compatibility wrapper"
+            exit 0
+            ;;
+        -v|--verbose)
+            dracut_args="${dracut_args} -v"
+            ;;
+        -f)
+            dracut_args="${dracut_args} -f"
+            ;;
+        --preload*)
+            if [ "$1" != "${1##--preload=}" ]; then
+                modname=${1##--preload=}
+            else
+                modname=$2
+                shift
+            fi
+            basicmodules="$basicmodules $modname"
+            ;;
+        --image-version)
+            img_vers=yes
+            ;;
+       --rootfs*)
+            if [ "$1" != "${1##--rootfs=}" ]; then
+                rootfs="${1##--rootfs=}"
+            else
+                rootfs="$2"
+                shift
+            fi
+           dracut_args="${dracut_args} --filesystems $rootfs"
+           ;;
+        --builtin*) ;;
+        --without*) ;;
+        --without-usb) ;;
+        --fstab*) ;;
+        --nocompress) ;;
+        --ifneeded) ;;
+        --omit-scsi-modules) ;;
+        --omit-ide-modules) ;;
+        --omit-raid-modules) ;;
+        --omit-lvm-modules) ;;
+        --omit-dmraid) ;;
+        --allow-missing) ;;
+        --net-dev*) ;;
+        --noresume) ;;
+       --rootdev*) ;;
+       --thawdev*) ;;
+       --rootopts*) ;;
+       --root*) ;;
+       --loopdev*) ;;
+       --loopfs*) ;;
+       --loopopts*) ;;
+       --looppath*) ;;
+       --dsdt*) ;;
+        --bootchart) ;;
+        --help)
+            usage -n
+            ;;
+        *)
+            if [ -z "$target" ]; then
+                target=$1
+            elif [ -z "$kernel" ]; then
+                kernel=$1
+            else
+                usage
+            fi
+            ;;
+    esac
+
+    shift
+done
+
+if [ -z "$target" -o -z "$kernel" ]; then
+    usage
+fi
+
+if [ -n "$img_vers" ]; then
+    target="$target-$kernel"
+fi
+
+if [ -n "$basicmodules" ]; then
+       dracut -H $dracut_args --add-drivers "$basicmodules" "$target" "$kernel"
+else
+       dracut -H $dracut_args "$target" "$kernel"
+fi
+
+# vim:ts=8:sw=4:sts=4:et