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| | #!/bin/sh
# Take a list of MSYS-compatible paths and convert them to native
# MS-Windows format.
# Status is zero if successful, nonzero otherwise.
VERSION='2013-11-09 10:48'; # UTC
# The definition above must lie within the first 8 lines in order
# for the Emacs time-stamp write hook (at end) to update it.
# If you change this file with Emacs, please let the write hook
# do its job. Otherwise, update this string manually.
# Copyright (C) 2002-2013 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
usage="usage: $0 PATHLIST [MUSTEXIST] [SEPARATOR [SEPARATOR2]]"
help="$usage
or: $0 OPTION
Convert MSYS-compatible paths to MS-Windows native format.
PATHLIST should be a list of paths separated by SEPARATOR. This list
will be written to the standard output after performing the following
transformations:
1. Empty paths will be discarded.
2. Backslashes will be replaced by forward slashed.
3. Two consecutive slashes will be replaced by a single one.
4. Each path will be translated to Windows-native format, using
forward slashes (e.g. 'c:/foo/bar'). This translated path will
never end with a slash.
5. Ocurrences of SEPARATOR2 withing the paths will be escaped with
backslashes.
6. Different paths will be separated with SEPARATOR2.
If MUSTEXIST is 'Y' (or not supplied), then each path in PATHLIST must
exists.
If SEPARATOR is not supplied, PATHLIST will be regarded as a single
path.
If SEPARATOR2 is not supplied, it will take the same value as
SEPARATOR.
Options:
--help display this help and exit
--version output version information and exit
Report bugs to <bug-gnu-emacs@gnu.org>."
version=`expr "$VERSION" : '\([^ ]*\)'`
version="msys-to-w32 $version
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law."
for arg
do
case $arg in
--help | --hel | --he | --h)
exec echo "$help" ;;
--version | --versio | --versi | --vers | --ver | --ve | --v)
exec echo "$version" ;;
--)
shift
break ;;
-*)
echo "$0: invalid option: $arg" >&2
exit 1 ;;
*)
break ;;
esac
done
{ test $# -ge 1 && test $# -le 4; } ||
{ echo "$0: $usage" >&2; exit 1; }
# Arguments
pathlist=$1
mustexist=${2:-Y}
separator=$3
separator2=${4:-${separator}}
# Split pathlist into its path components
if test -n "$separator"
then
IFS=${separator} patharray=( $pathlist )
else
patharray=( "$pathlist" )
fi
# Output pathlist
pathlist2=""
for p in "${patharray[@]}"
do
# Skip empty paths
test "$p" = "" && continue
# Replace '\' with '/', '//' with '/' and remove the final slash
# (if any).
p=${p//"\\"/"/"}
p=${p//\/\//"/"}
test ${#p} -gt 1 && p=${p%"/"}
if test -d "$p"
then
# The path exists, so just translate it
p2=`cd "$p" && pwd -W`
else
# The path does not exists. So, try to guess the
# Windows-native translation
test "${mustexist}" = "Y" &&
{ echo "$0: invalid path: $p" >&2; exit 1; }
# Look for the deepest existing directory in this path,
# testing with partial paths by removing one component from
# the right side in each iteration
IFS=/ pcomponents=( $p )
pa=$p
for (( i=${#pcomponents[@]}-1 ; i>=0 ; i-- ))
do
if test "${pcomponents[i]}" = ""
then
# The path component is empty. This can only mean
# that the path starts with "/" and all components
# have been stripped out already. So in this case
# "pa" must be set to the MSYS root directory
pa="/"
else
pa=${pa%"/${pcomponents[i]}"}
fi
if test -d "${pa}"
then
# Translate the existing part
p2=`cd "${pa}" && pwd -W`
# Remainder
pb="${p#${pa}}"
# Concatenate both parts (existing and remainder)
test "${p2}" = "/" || p2="${p2}/"
pb=${pb#/}
p2="${p2}${pb}"
break
fi
done
# If no existing directory was found, error out
test -e "${pa}" ||
{ echo "$0: invalid path: ${p}" >&2; exit 1; }
fi
# Add this translated path to the translated pathlist
test "${pathlist2}" = "" || pathlist2="${pathlist2}${separator2}"
pathlist2="${pathlist2}${p2//${separator2}/\\${separator2}}"
done
# Write the translated pathlist to the standard output
printf "${pathlist2}"
## Local Variables:
## eval: (add-hook 'write-file-functions 'time-stamp)
## time-stamp-start: "VERSION='"
## time-stamp-format: "%:y-%02m-%02d %02H:%02M"
## time-stamp-time-zone: "UTC"
## time-stamp-end: "'; # UTC"
## End:
|