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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-01-08 22:11:00 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-01-08 22:11:00 +0000 |
commit | bc228da3552108f199206f573e463165afede3b3 (patch) | |
tree | 5f76a05ae462b77f1a2d48a76fce3782bc66cadd /nuttx/tools/unlink.sh | |
parent | eae911d362e30de8ae5e196842ffc3b9fd851e67 (diff) | |
download | px4-nuttx-bc228da3552108f199206f573e463165afede3b3.tar.gz px4-nuttx-bc228da3552108f199206f573e463165afede3b3.tar.bz2 px4-nuttx-bc228da3552108f199206f573e463165afede3b3.zip |
Add logic for environments that can't use soft links
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@530 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/tools/unlink.sh')
-rwxr-xr-x | nuttx/tools/unlink.sh | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/nuttx/tools/unlink.sh b/nuttx/tools/unlink.sh new file mode 100755 index 000000000..ebd21d512 --- /dev/null +++ b/nuttx/tools/unlink.sh @@ -0,0 +1,70 @@ +#!/bin/sh +############################################################################ +# tools/unlink.sh +# +# Copyright (C) 2008 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt <spudmonkey@racsa.co.cr> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. 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. +# 3. Neither the name NuttX 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. +# +############################################################################ + +link=$1 + +# Verify that arguments were provided + +if [ -z "${link}" ]; then + echo "Missing link argument" + exit 1 +fi + +# Check if something already exists at the link path + +if [ -e "${link}" ]; then + + # Yes, is it a symbolic link? If so, then remove it + + if [ -h "${link}" ]; then + rm -f "${link}" + else + + # If the path is a directory and contains the "fake link" mark, then + # treat it like a soft link (i.e., remove the directory) + + if [ -d "${link}" -a -f "${link}/.fakelnk" ]; then + rm -rf "${link}" + else + + # It is something else (like a file) or directory that does + # not contain the "fake link" mark + + echo "${link} already exists but is not a symbolic link" + exit 1 + fi + fi +fi
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