91 lines
2.4 KiB
Bash
Executable File
91 lines
2.4 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2013 Steven Armstrong (steven-cdist at armstrong.cc)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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 cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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# quote function from http://www.etalabs.net/sh_tricks.html
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quote() {
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printf '%s\n' "$1" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/"
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}
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file="$(cat "$__object/parameter/file" 2>/dev/null || echo "/$__object_id")"
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state_should=$(cat "$__object/parameter/state")
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prefix=$(cat "$__object/parameter/prefix" 2>/dev/null || echo "#cdist:__block/$__object_id")
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suffix=$(cat "$__object/parameter/suffix" 2>/dev/null || echo "#/cdist:__block/$__object_id")
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block="$__object/files/block"
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if [ ! -s "$__object/explorer/block" ]; then
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state_is='absent'
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else
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state_is=$(diff -q "$block" "$__object/explorer/block" >/dev/null \
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&& echo present \
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|| echo changed
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)
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fi
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state_should="$(cat "$__object/parameter/state")"
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if [ "$state_should" = "$state_is" ]; then
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# Nothing to do, move along
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exit 0
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fi
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remove_block() {
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cat << DONE
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tmpfile=\$(mktemp ${quoted_file}.cdist.XXXXXXXXXX)
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# preserve ownership and permissions of existing file
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if [ -f $quoted_file ]; then
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cp -p $quoted_file "\$tmpfile"
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fi
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awk -v prefix=$(quote "$prefix") -v suffix=$(quote "$suffix") '
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{
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if (\$0 == prefix) {
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triggered=1
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}
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if (triggered) {
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if (\$0 == suffix) {
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triggered=0
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}
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} else {
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print
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}
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}' $quoted_file > "\$tmpfile"
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mv -f "\$tmpfile" $quoted_file
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DONE
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}
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quoted_file="$(quote "$file")"
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case "$state_should" in
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present)
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if [ "$state_is" = "changed" ]; then
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echo update >> "$__messages_out"
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remove_block
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else
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echo add >> "$__messages_out"
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fi
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cat << DONE
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cat >> $quoted_file << '${__type##*/}_DONE'
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$(cat "$block")
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${__type##*/}_DONE
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DONE
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;;
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absent)
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echo remove >> "$__messages_out"
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remove_block
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;;
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esac
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