126 lines
3.4 KiB
Bash
Executable file
126 lines
3.4 KiB
Bash
Executable file
#!/bin/sh
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#------------------------------------------------------------------------------
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# ========= |
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# \\ / F ield | foam-extend: Open Source CFD
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# \\ / O peration | Version: 4.0
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# \\ / A nd | Web: http://www.foam-extend.org
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# \\/ M anipulation | For copyright notice see file Copyright
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#------------------------------------------------------------------------------
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# License
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# This file is part of foam-extend.
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#
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# foam-extend is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation, either version 3 of the License, or (at your
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# option) any later version.
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#
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# foam-extend is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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#
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# Script
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# foamCleanPath
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#
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# Description
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# Usage: foamCleanPath [-strip] path [wildcard] .. [wildcard]
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#
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# Prints its argument (which should be a ':' separated path)
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# without all
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# - duplicate elements
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# - (if '-strip') non-accessible directories
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# - elements whose start matches a wildcard
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#
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# Note:
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# - this routine will fail when directories have embedded spaces
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# - false matches possible if a wildcard contains '.' (sed regex)
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#------------------------------------------------------------------------------
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if [ "$#" -lt 1 -o "$1" = "-h" -o "$1" = "-help" ]
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then
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cat <<USAGE 1>&2
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Usage: ${0##*/} [-strip] path [wildcard] .. [wildcard]
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Prints its argument (which should be a ':' separated list) cleansed from
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- duplicate elements
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- elements whose start matches one of the wildcard(s)
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- (if '-strip') non-accessible directories
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USAGE
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exit 1
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fi
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strip=''
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if [ "$1" = "-strip" ]
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then
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strip=true
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shift
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fi
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dirList="$1"
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shift
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##DEBUG echo "input>$dirList<" 1>&2
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# preserve current IFS and split on whitespace
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oldIFS="$IFS"
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IFS=' '
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# "wildcard1 ... wildcardN" may have been passed as a single parameter
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set -- $*
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# strip out wildcards via sed
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while [ "$#" -ge 1 ]
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do
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wildcard=$1
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shift
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##DEBUG echo "remove>$wildcard<" 1>&2
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dirList=`echo "$dirList" | sed -e "s@${wildcard}[^:]*:@@g"`
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done
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# split on ':' (and on space as well to avoid any surprises)
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IFS=': '
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set -- $dirList
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##DEBUG echo "intermediate>$dirList<" 1>&2
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# rebuild the list from scratch
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unset dirList
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for dir
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do
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##DEBUG echo "check>$dir<" 1>&2
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#- dirs must exist
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if [ -e "$dir" ]
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then
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#- no duplicate dirs
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duplicate=`echo " $dirList " | sed -ne "s@ $dir @DUP@p"`
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if [ ! "$duplicate" ]
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then
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dirList="$dirList $dir"
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fi
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elif [ "$strip" != "true" ]
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then
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# Print non-existing directories if not in 'strip' mode.
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dirList="$dirList $dir"
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fi
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done
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# parse on whitespace
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IFS=' '
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set -- $dirList
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# join on ':'
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IFS=':'
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dirList="$*"
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# restore IFS
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IFS="$oldIFS"
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##DEBUG echo "output>$dirList<" 1>&2
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echo "$dirList"
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# -----------------------------------------------------------------------------
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