Symlink use flag code update

kernel-2.symlink-use-update.txt (text/plain), 1.28 KB, created by Kevin Williams on 2005-07-25 14:37:27 UTC

postinst_sources() {
	local MAKELINK=0
        local MAKE_OLDLINK=0
         
        # current and working Kernel tree.
         local K_DIR

	# if we have USE=symlink, then force K_SYMLINK=1
	use symlink && K_SYMLINK=1

	# if we are to forcably create the symlink for the new kernel tree, 
	# then first we need to delete the symlinks for the current andd backup
        # kernel trees if they exsist.  
	if [[ -n ${K_SYMLINK} ]]; then

		if [[ -h ${ROOT}usr/src/linux ]]; then
		  # remove the backup kernel symlink, only when upgrading kernel
		  # emerging the same kernel version only removes the symlink 
		  # for current kernel tree. 
		  K_DIR=$(readlink ${ROOT}usr/src/linux)
		  [[ "${K_DIR}" != "linux-${KV_FULL}" ]] && MAKE_OLDLINK=1
		  [[ -h ${ROOT}usr/src/linux-old ]] && [[ ${MAKE_OLDLINK} == 1 ]] && 
		  rm ${ROOT}usr/src/linux-old
		  
		  # remove the link for current kernel tree
		  rm ${ROOT}usr/src/linux
                fi 
		MAKELINK=1
	fi

	# enabling making a new current link if it doesn't already exsist.
	[[ ! -h ${ROOT}usr/src/linux ]] && MAKELINK=1
	
	# create the symlinks for the current and backup kernel trees.
	if [[ ${MAKELINK} == 1 ]]; then
		cd ${ROOT}usr/src
		ln -sf linux-${KV_FULL} linux
		[[ ${MAKE_OLDLINK} == 1 ]] && ln -sf ${K_DIR} linux.old 
		cd ${OLDPWD}
	fi