139 lines
3.8 KiB
Bash
Executable file
139 lines
3.8 KiB
Bash
Executable file
#!/bin/sh
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#
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# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2012 Nico Schottelius (nico-cdist at schottelius.org)
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# 2014 Daniel Heule (hda at sfs.biz)
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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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#set -x
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key="$__object_id"
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[ -f "$__object/parameter/key" ] && key="$(cat "$__object/parameter/key")"
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state_should="$(cat "$__object/parameter/state")"
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file="$(cat "$__object/parameter/file")"
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state_is="$(cat "$__object/explorer/state")"
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[ "$state_is" = "$state_should" ] && exit 0
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# here we check only if the states are valid, let awk do the work ...
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case "$state_should" in
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absent|present)
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case "$state_is" in
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absent|wrongvalue|present)
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;;
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*)
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echo "Unknown explorer state: $state_is" >&2
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exit 1
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esac
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;;
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*)
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echo "Unknown state: $state_should" >&2
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exit 1
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esac
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cat <<__CDIST_HEREDOC_END_HERE_MARKER
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export state="\$(cat <<"__CDIST_INPUT_END_HERE_MARKER"
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$state_should
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__CDIST_INPUT_END_HERE_MARKER
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)"
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export key="\$(cat <<"__CDIST_INPUT_END_HERE_MARKER"
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$key
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__CDIST_INPUT_END_HERE_MARKER
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)"
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export delimiter="\$(cat <<"__CDIST_INPUT_END_HERE_MARKER"
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$(cat "$__object/parameter/delimiter")
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__CDIST_INPUT_END_HERE_MARKER
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)"
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export value="\$(cat <<"__CDIST_INPUT_END_HERE_MARKER"
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$(cat "$__object/parameter/value")
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__CDIST_INPUT_END_HERE_MARKER
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)"
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export comment="\$(cat <<"__CDIST_INPUT_END_HERE_MARKER"
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$(cat "$__object/parameter/comment_line")
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__CDIST_INPUT_END_HERE_MARKER
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)"
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tmpfile=\$(mktemp "${file}.cdist.XXXXXXXXXX")
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# preserve ownership and permissions by copying existing file over tmpfile
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cp -p "$file" "\$tmpfile"
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awk -f - "$file" >"\$tmpfile" <<"AWK_EOF"
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BEGIN {
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# import variables in a secure way ..
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state=ENVIRON["state"]
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key=ENVIRON["key"]
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delimiter=ENVIRON["delimiter"]
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value=ENVIRON["value"]
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comment=ENVIRON["comment"]
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keydel=key delimiter
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line=keydel value
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inserted=0
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ll=""
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llpopulated=0
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}
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# enter the main loop
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{
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# I dont use regex, this is by design, so we can match against every value without special meanings of chars ...
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i = index(\$0,keydel)
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if(i == 1) {
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if(state == "absent") {
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if(ll == comment) {
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# if comment is present, clear llpopulated flag
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llpopulated=0
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}
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# if absent, simple yump over this line
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next
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}
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else {
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# if comment is present and not present in last line
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if (llpopulated == 1) {
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print ll
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if( comment != "" && ll != comment) {
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print comment
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}
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llpopulated=0
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}
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inserted=1
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# state is present, so insert correct line here
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print line
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ll=line
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next
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}
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}
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else {
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if(llpopulated == 1) {
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print ll
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}
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ll=\$0
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llpopulated=1
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}
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}
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END {
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if(llpopulated == 1) {
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print ll
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}
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if(inserted == 0 && state == "present" ) {
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if(comment != "" && ll != comment){
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print comment
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}
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print line
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}
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}
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AWK_EOF
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mv -f "\$tmpfile" "$file"
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__CDIST_HEREDOC_END_HERE_MARKER
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