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buildmimetree.py: externalise file i/o from converter
[etc/neomutt.git] / .config / neomutt / filter-proxy
1 #!/bin/sh
2 #
3 # filter-proxy - enable filters to work on real files (using tmpfiles)
4 #
5 # Copyright © 2008 martin f. krafft <madduck@madduck.net>
6 # Released under the terms of the Artistic Licence 2.0
7 #
8 set -eu
9
10 cmd=
11 file=
12 while [ -n "${1:-}" ]; do
13   if [ -z "${2:-}" ]; then
14     file="$1"
15   else
16     case "$1" in
17       *' '*) cmd="$cmd '$1'";;
18       *) cmd="$cmd $1";;
19     esac
20   fi
21   shift
22 done
23
24 TMPFILE="$(mktemp --tmpdir proxy.XXXXXXXXXX)"
25 trap "rm -f $TMPFILE" 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15
26
27 eval $cmd <"$file" >$TMPFILE
28 cat $TMPFILE >"$file"
29
30 rm -f $TMPFILE
31 trap - 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15