makedist.sh

TTYLINUX迷你代码 TTYLINUX迷你代码

#!/bin/bash -eux
# Copyright (C) 2005 Pascal Schmidt <[e-mail]>

###########################################################################
#                           ttylinux build script
###########################################################################

#
# ttylinux version number
#
TTYVERSION="5.1"

#
# filesystem image size in megabytes
#
IMAGESIZE="4"

#
# directory locations
#
TOPDIR=`pwd`
DISTDIR="$TOPDIR/dist"

#
# default compiler flags
#
export CFLAGS="-march=i386 -Os"

#
# default install flags
#
INSTALL="install -m 755 -o root -g root"

#
# packages to build
# NOTE: basesystem must be included as the first package
#
PACKAGES="basesystem busybox glibc bash ppp isdn4k-utils iptables e2fsprogs dhcpcd e3 lilo ncurses retawq dropbear"

###########################################################################
#                           individual build steps
###########################################################################

#
# build one package
#
build_package()
{
	for i in "$TOPDIR/packages/bin/$1-"*.bin.tbz
	do
	  [ -r "$i" ] && return 0
	done

	rm -rf "$TOPDIR/build/"*
	
	tar xjf "$TOPDIR/packages/src/$1-"*.src.tbz -C "$TOPDIR/build"
	cd "$TOPDIR/build"
	for i in "$TOPDIR/build/control/patch-"*
	do
		[ -r "$i" ] && patch -p0 < "$i"
	done

	test -r control/files
	test -r control/build
	. control/build
	build
	unset build
	local PKGNAME=`name`
	unset name

	cd "$TOPDIR/build"
	mkdir -p "$DISTDIR/var/log/packages"
	cp control/files "$DISTDIR/var/log/packages/$PKGNAME"
	echo "var/log/packages/$PKGNAME" >> control/files
	if [ -r control/install ]; then
		mkdir -p "$DISTDIR/var/log/packages/install-scripts"
		cp control/install \
			"$DISTDIR/var/log/packages/install-scripts/$PKGNAME"
		echo "var/log/packages/install-scripts/$PKGNAME" >> \
			control/files
	fi
	cd "$DISTDIR"
	tar cvjfT "$TOPDIR/packages/bin/$PKGNAME.bin.tbz" \
		"$TOPDIR/build/control/files"
}

#
# build all packages
#
build_packages()
{
	for i in $PACKAGES
	do
		build_package "$i"
	done
}

#
# clean up after building
#
cleanup()
{
	rm -rf "$TOPDIR/build/"*
}

#
# unpack packages into packaging directory
#
unpack()
{
	rm -rf "$DISTDIR"
	mkdir "$DISTDIR"
	for i in "$TOPDIR/packages/bin/"*.bin.tbz
	do
		tar xjf "$i" -C "$DISTDIR"
	done
}

#
# create 4M filesystem image
#
create_image()
{
	[ -e "$TOPDIR/mnt" ] && rm -rf "$TOPDIR/mnt"
	mkdir "$TOPDIR/mnt"
	cd "$DISTDIR"
	tar cf "$TOPDIR/files" .
	trap "rm -f $TOPDIR/files" ERR
	cd "$TOPDIR"
	dd if=/dev/zero of=filesys bs=1M count="$IMAGESIZE"
	mke2fs -F -q -m 0 -N 512 filesys
	mount -o loop filesys mnt
	cd mnt
	tar xf ../files
	du -sh
	df .
	cd ..
	umount mnt
	rmdir mnt
	trap ERR
	rm -f files
	rm -rf "$DISTDIR"
}

#
# create distribution tarball
#
create_dist()
{
	local PKGDIR="ttylinux-$TTYVERSION"
	cd "$TOPDIR"
	[ -e "$PKGDIR" ] && rm -rf "$PKGDIR"
	mkdir "$PKGDIR"
	
	cp docs/* "$PKGDIR"
	gzip -9 -c filesys > "$PKGDIR/rootfs.gz"
	tar czf "$PKGDIR.tar.gz" "$PKGDIR"
	rm -rf "$PKGDIR"
}

#
# print message at the end of a successful build
#
completion_message()
{
	set +x
	
	echo
	echo "*** BUILD SUCCESSFUL ***"
	echo
}

#
# exit with error message
#
error_exit()
{
	set +x
	echo
	echo "ERROR: $1"
	echo
	exit 1
}

#
# check whether preconditions for build are met
#
check_sanity()
{
	cd "$TOPDIR"

	[ -e makedist.sh ] || \
	error_exit "you need to be in the directory with makedist.sh"
	
	[ "`id -u`" = "0" ] || \
	error_exit "you need to be root for the build to work"
}

###########################################################################
#                              build sequence
###########################################################################

check_sanity
build_packages
cleanup
unpack
create_image
create_dist
completion_message