1 files changed, 150 insertions, 0 deletions
diff --git a/dracut-catimages.sh b/dracut-catimages.sh
new file mode 100755
index 0000000..b87e000
--- /dev/null
+++ b/dracut-catimages.sh
@@ -0,0 +1,150 @@
+#!/bin/bash --norc
+#
+# Copyright 2009 Red Hat, Inc.  All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+dwarning() {
+    echo "Warning: $*" >&2
+}
+
+dinfo() {
+    [[ $beverbose ]] && echo "$@" >&2
+}
+
+derror() {
+    echo "Error: $*" >&2
+}
+
+usage() {
+    #                                                   80x25 linebreak here ^
+    cat << EOF
+Usage: $0 [OPTION]... <initramfs> <base image> [<image>...]
+Creates initial ramdisk image by concatenating several images from the command
+line and /boot/dracut/
+
+  -f, --force           Overwrite existing initramfs file.
+  -i, --imagedir        Directory with additional images to add
+                        (default: /boot/dracut/)
+  -o, --overlaydir      Overlay directory, which contains files that
+                        will be used to create an additional image
+  --nooverlay           Do not use the overlay directory
+  --noimagedir          Do not use the additional image directory
+  -h, --help            This message
+  --debug               Output debug information of the build process
+  -v, --verbose         Verbose output during the build process
+EOF
+}
+
+imagedir=/boot/dracut/
+overlay=/var/lib/dracut/overlay
+
+while (($# > 0)); do
+    case $1 in
+        -f | --force) force=yes ;;
+        -i | --imagedir)
+            imagedir=$2
+            shift
+            ;;
+        -o | --overlaydir)
+            overlay=$2
+            shift
+            ;;
+        --nooverlay)
+            no_overlay=yes
+            shift
+            ;;
+        --noimagedir)
+            no_imagedir=yes
+            shift
+            ;;
+        -h | --help)
+            usage
+            exit 1
+            ;;
+        --debug) export debug="yes" ;;
+        -v | --verbose) beverbose="yes" ;;
+        -*)
+            printf "\nUnknown option: %s\n\n" "$1" >&2
+            usage
+            exit 1
+            ;;
+        *) break ;;
+    esac
+    shift
+done
+
+outfile=$1
+shift
+
+if [[ -z $outfile ]]; then
+    derror "No output file specified."
+    usage
+    exit 1
+fi
+
+baseimage=$1
+shift
+
+if [[ -z $baseimage ]]; then
+    derror "No base image specified."
+    usage
+    exit 1
+fi
+
+if [[ -f $outfile && ! $force ]]; then
+    derror "Will not override existing initramfs ($outfile) without --force"
+    exit 1
+fi
+
+if [[ ! $no_imagedir && ! -d $imagedir ]]; then
+    derror "Image directory $overlay is not a directory"
+    exit 1
+fi
+
+if [[ ! $no_overlay && ! -d $overlay ]]; then
+    derror "Overlay $overlay is not a directory"
+    exit 1
+fi
+
+if [[ ! $no_overlay ]]; then
+    ofile="$imagedir/90-overlay.img"
+    dinfo "Creating image $ofile from directory $overlay"
+    type pigz &> /dev/null && gzip=pigz || gzip=gzip
+    (
+        cd "$overlay" || return 1
+        find . | cpio --quiet -H newc -o | $gzip -9 > "$ofile"
+    )
+fi
+
+if [[ ! $no_imagedir ]]; then
+    for i in "$imagedir/"*.img; do
+        [[ -f $i ]] && images+=("$i")
+    done
+fi
+
+images+=("$@")
+
+dinfo "Using base image $baseimage"
+cat -- "$baseimage" > "$outfile"
+
+for i in "${images[@]}"; do
+    dinfo "Appending $i"
+    cat -- "$i" >> "$outfile"
+done
+
+dinfo "Created $outfile"
+
+exit 0