7a514a0070
When creating the symlinks for header files to the include folder, the relpath script dereferenced all symlinks. This made it impossible to have file A.h renamed to B.h and then symlinked back to its original name. This is useful to be able to do when refactoring or reworking a library. Change this so that we just use the dirname of the path from readlink, we can use the basename as it was originally, even if it was a symlink. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
106 lines
2.8 KiB
Bash
Executable File
106 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# print the relative path of $1 from $2 directory
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# $1 and $2 MUST be absolute paths
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#
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if [ $# -ne 2 ]; then
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echo "Bad arguments"
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echo "Usage:"
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echo " $0 path1 path2"
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exit 1
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fi
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# get the real absolute path, derefencing symlinks
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ABS1="$(dirname $(readlink -f $1))/$(basename $1)"
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ABS2=$(readlink -f $2)
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# remove leading slash
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REL1=${ABS1#/}
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REL2=${ABS2#/}
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left1=${REL1%%/*}
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right1=${REL1#*/}
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prev_right1=$REL1
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prev_left1=
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left2=${REL2%%/*}
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right2=${REL2#*/}
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prev_right2=$REL2
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prev_left2=
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prefix=
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while [ "${right1}" != "" -a "${right2}" != "" ]; do
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if [ "$left1" != "$left2" ]; then
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break
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fi
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prev_left1=$left1
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left1=$left1/${right1%%/*}
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prev_right1=$right1
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right1=${prev_right1#*/}
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if [ "$right1" = "$prev_right1" ]; then
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right1=""
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fi
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prev_left2=$left2
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left2=$left2/${right2%%/*}
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prev_right2=$right2
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right2=${prev_right2#*/}
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if [ "$right2" = "$prev_right2" ]; then
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right2=""
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fi
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done
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if [ "${left1}" != "${left2}" ]; then
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right2=${prev_right2}
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right1=${prev_right1}
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fi
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while [ "${right2}" != "" ]; do
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prefix=${prefix}../
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prev_right2=$right2
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right2=${right2#*/}
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if [ "$right2" = "$prev_right2" ]; then
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right2=""
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fi
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done
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echo ${prefix}${right1}
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exit 0
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