Import a script to generate ISO images

src/project.conf

@@ -1,2 +1,9 @@
 subdirs=arch,common,lib,drivers,kernel,loader
+targets=DeforaOS.iso
 dist=Makefile
+
+#targets
+[DeforaOS.iso]
+type=script
+script=../tools/iso.sh
+depends=$(OBJDIR)kernel/uKernel.bin,$(OBJDIR)loader/uLoader.bin,../tools/iso.sh

tools/iso.sh

@@ -0,0 +1,154 @@
+#!/bin/sh
+#$Id$
+#Copyright (c) 2019 Pierre Pronchery <khorben@defora.org>
+#This file is part of DeforaOS uKernel
+#
+#Redistribution and use in source and binary forms, with or without
+#modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice, this
+#   list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+#
+#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+#FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+#DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+#OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+#variables
+[ -n "$ARCH" ] || ARCH="$(uname -m)"
+case "$ARCH" in
+	i[3456]86)
+		ARCH="i386"
+		;;
+	amd64|x86_64)
+		ARCH="amd64"
+		;;
+	*)
+		exit 0
+		;;
+esac
+[ -n "$OBJDIR" ] || OBJDIR="./"
+PROGNAME="iso.sh"
+UKERNELBIN="${OBJDIR}kernel/uKernel.bin"
+ULOADERBIN="${OBJDIR}loader/uLoader.bin"
+#executables
+DATE="date"
+DEBUG="_debug"
+GRUBMKRESCUE="grub-mkrescue"
+MKDIR="mkdir -p"
+MKTEMP="mktemp"
+RM="rm -f"
+RMDIR="rmdir"
+UNAME="uname"
+
+
+#functions
+#debug
+_debug()
+{
+	echo "$@" 1>&2
+	$@
+}
+
+
+#error
+_error()
+{
+	echo "$PROGNAME: $@" 1>&2
+	return 2
+}
+
+
+#iso
+_iso()
+{
+	target="$1"
+
+	_info "$target: Creating ISO image ($ARCH)"
+	tmpdir=$($DEBUG $MKTEMP -d)
+	if [ $? -ne 0 ]; then
+		_error "$target: Could not create temporary directory"
+		return 2
+	fi
+	$DEBUG $MKDIR -- "$tmpdir/boot" "$tmpdir/grub"
+	$CAT > "$tmpdir/grub/grub.cfg" << EOF
+menuentry "DeforaOS" {
+	multiboot /boot/uKernel.bin
+}
+EOF
+	$DEBUG $GRUBMKRESCUE -o "$target" "$tmpdir"
+	ret=$?
+	$DEBUG $RM -- "$tmpdir/uKernel.bin" "$tmpdir/uLoader.bin" "$tmpdir/grub/grub.cfg"
+	$DEBUG $RMDIR -- "$tmpdir/boot" "$tmpdir/grub" "$tmpdir"
+	if [ $ret -eq 127 ]; then
+		_error "$target: Could not create ISO image: $GRUBMKRESCUE not available (ignored)"
+		ret=0
+	elif [ $ret -ne 0 ]; then
+		_error "$target: Could not create ISO image"
+		ret=$?
+	fi
+	return $ret
+}
+
+
+#info
+_info()
+{
+	echo "$PROGNAME: $@"
+}
+
+
+#usage
+_usage()
+{
+	echo "Usage: $PROGNAME [-c] target..." 1>&2
+	return 1
+}
+
+
+#main
+clean=0
+while getopts "cO:P:" name; do
+	case "$name" in
+		c)
+			clean=1
+			;;
+		O)
+			export "${OPTARG%%=*}"="${OPTARG#*=}"
+			;;
+		P)
+			#XXX ignored for compatibility
+			;;
+		?)
+			_usage
+			exit $?
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+if [ $# -lt 1 ]; then
+	_usage
+	exit $?
+fi
+
+#clean
+[ $clean -ne 0 ] && exit 0
+
+exec 3>&1
+while [ $# -gt 0 ]; do
+	target="$1"
+	shift
+
+	_iso "$target"						|| exit 2
+done

tools/project.conf

@@ -6,7 +6,7 @@ cflags=-W -Wall -g -O2
 as=$(CC)
 asflags_force=$(CFLAGSF) $(CFLAGS) -c
 ldflags_force=`../tools/platform.sh -V NATIVE_LDFLAGS -C "$$ARCH"`
-dist=Makefile,platform.sh
+dist=Makefile,iso.sh,platform.sh
 
 #targets
 [crtbegin.o]