110 lines
3.0 KiB
Bash
110 lines
3.0 KiB
Bash
#!/bin/sh
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key="$(cat "$__object/parameter/key" 2>/dev/null \
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|| echo "$__object_id")"
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state="$(cat "$__object/parameter/state")"
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file="$(cat "$__object/parameter/file")"
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delimiter="$(cat "$__object/parameter/delimiter")"
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value="$(cat "$__object/parameter/value" 2>/dev/null \
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|| echo "__CDIST_NOTSET__")"
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export key state delimiter value
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if [ -f "$__object/parameter/exact_delimiter" ]; then
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exact_delimiter=1
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else
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exact_delimiter=0
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fi
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export exact_delimiter
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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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if [ -f "$file" ]; then
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cp -p "$file" "$tmpfile"
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else
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touch "$file"
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fi
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awk_bin=$(PATH=$(getconf PATH 2>/dev/null) && command -v awk || echo awk)
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"${awk_bin}" -f - "$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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exact_delimiter=ENVIRON["exact_delimiter"]
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inserted=0
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lastline=""
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lastlinepopulated=0
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line=key delimiter value
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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,key)
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if(i == 1) {
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delval = substr($0,length(key)+1)
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delpos = index(delval,delimiter)
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if(delpos > 1) {
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spaces = substr(delval,1,delpos-1)
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sub(/[ \t]*/,"",spaces)
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if( length(spaces) > 0 ) {
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# if there are not only spaces between key and delimiter,
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# continue since we we are on the wrong line
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if(lastlinepopulated == 1) {
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print lastline
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}
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lastline=$0
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lastlinepopulated=1
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next
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}
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}
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if(state == "absent") {
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if(lastline == comment) {
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# if comment is present, clear lastlinepopulated flag
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lastlinepopulated=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 (lastlinepopulated == 1) {
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print lastline
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if( comment != "" && lastline != comment) {
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print comment
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}
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lastlinepopulated=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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lastline=line
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next
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}
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}
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else {
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if(lastlinepopulated == 1) {
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print lastline
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}
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lastline=$0
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lastlinepopulated=1
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}
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}
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END {
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if(lastlinepopulated == 1) {
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print lastline
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}
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if(inserted == 0 && state == "present" ) {
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if(comment != "" && lastline != comment){
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print comment
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}
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print line
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}
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}
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AWK_EOF
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mv -f "$tmpfile" "$file"
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