[ceph.git] / ceph / src / dpdk / scripts / depdirs-rule.sh

#!/bin/sh

#   BSD LICENSE
#
#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
#   All rights reserved.
#
#   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.
#     * Neither the name of Intel Corporation nor the names of its
#       contributors may be used to endorse or promote products derived
#       from this software without specific prior written permission.
#
#   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
#   OWNER 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.

#
# This (obscure) bash script finds the smallest different path between
# path1 and path2 given as command line argument. The given paths MUST
# be relative paths, the script is not designed to work with absolute
# paths.
#
# The script will then generate Makefile code that can be saved in a
# file and included in build system.
#
# For instance:
#   depdirs-rule.sh a/b/c/d a/b/e/f
# Will print:
#   FULL_DEPDIRS-a/b/c/d += a/b/e/f
#   LOCAL_DEPDIRS-a/b/c += a/b/e
#
# The script returns 0 except if invalid arguments are given.
#

if [ $# -ne 2 ]; then
	echo "Bad arguments"
	echo "Usage:"
	echo "  $0 path1 path2"
	exit 1
fi

left1=${1%%/*}
right1=${1#*/}
prev_right1=$1
prev_left1=

left2=${2%%/*}
right2=${2#*/}
prev_right2=$2
prev_left2=

while [ "${right1}" != "" -a "${right2}" != "" ]; do

	if [ "$left1" != "$left2" ]; then
		break
	fi

	prev_left1=$left1
	left1=$left1/${right1%%/*}
	prev_right1=$right1
	right1=${prev_right1#*/}
	if [ "$right1" = "$prev_right1" ]; then
		right1=""
	fi

	prev_left2=$left2
	left2=$left2/${right2%%/*}
	prev_right2=$right2
	right2=${prev_right2#*/}
	if [ "$right2" = "$prev_right2" ]; then
		right2=""
	fi
done

echo FULL_DEPDIRS-$1 += $2
echo LOCAL_DEPDIRS-$left1 += $left2

exit 0
Commit	Line	Data
7c673cae FG	1	#!/bin/sh
	2
	3	# BSD LICENSE
	4	#
	5	# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
	6	# All rights reserved.
	7	#
	8	# Redistribution and use in source and binary forms, with or without
	9	# modification, are permitted provided that the following conditions
	10	# are met:
	11	#
	12	# * Redistributions of source code must retain the above copyright
	13	# notice, this list of conditions and the following disclaimer.
	14	# * Redistributions in binary form must reproduce the above copyright
	15	# notice, this list of conditions and the following disclaimer in
	16	# the documentation and/or other materials provided with the
	17	# distribution.
	18	# * Neither the name of Intel Corporation nor the names of its
	19	# contributors may be used to endorse or promote products derived
	20	# from this software without specific prior written permission.
	21	#
	22	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	23	# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	24	# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	25	# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	26	# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	27	# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	28	# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	29	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	30	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	31	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	32	# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	33
	34	#
	35	# This (obscure) bash script finds the smallest different path between
	36	# path1 and path2 given as command line argument. The given paths MUST
	37	# be relative paths, the script is not designed to work with absolute
	38	# paths.
	39	#
	40	# The script will then generate Makefile code that can be saved in a
	41	# file and included in build system.
	42	#
	43	# For instance:
	44	# depdirs-rule.sh a/b/c/d a/b/e/f
	45	# Will print:
	46	# FULL_DEPDIRS-a/b/c/d += a/b/e/f
	47	# LOCAL_DEPDIRS-a/b/c += a/b/e
	48	#
	49	# The script returns 0 except if invalid arguments are given.
	50	#
	51
	52	if [ $# -ne 2 ]; then
	53	echo "Bad arguments"
	54	echo "Usage:"
	55	echo " $0 path1 path2"
	56	exit 1
	57	fi
	58
	59	left1=${1%%/*}
	60	right1=${1#*/}
	61	prev_right1=$1
	62	prev_left1=
	63
	64	left2=${2%%/*}
65	right2=${2#*/}
66	prev_right2=$2
67	prev_left2=
68
69	while [ "${right1}" != "" -a "${right2}" != "" ]; do
70
71	if [ "$left1" != "$left2" ]; then
72	break
73	fi
74
75	prev_left1=$left1
76	left1=$left1/${right1%%/*}
77	prev_right1=$right1
78	right1=${prev_right1#*/}
79	if [ "$right1" = "$prev_right1" ]; then
80	right1=""
81	fi
82
83	prev_left2=$left2
84	left2=$left2/${right2%%/*}
85	prev_right2=$right2
86	right2=${prev_right2#*/}
87	if [ "$right2" = "$prev_right2" ]; then
88	right2=""
89	fi
90	done
91
92	echo FULL_DEPDIRS-$1 += $2
93	echo LOCAL_DEPDIRS-$left1 += $left2
94
95	exit 0