rewrite of __key_value, now support nerarly every value
This commit is contained in:
Daniel Heule
parent
95f38d9d44
commit
205e256ef6
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@ -1,6 +1,7 @@
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#!/bin/sh
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#
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# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
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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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@ -18,36 +19,49 @@
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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key="$(cat "$__object/parameter/key" 2>/dev/null \
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export key="$(cat "$__object/parameter/key" 2>/dev/null \
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|| echo "$__object_id")"
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state="$(cat "$__object/parameter/state" 2>/dev/null \
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export state="$(cat "$__object/parameter/state" 2>/dev/null \
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|| echo "present")"
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file="$(cat "$__object/parameter/file")"
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delimiter="$(cat "$__object/parameter/delimiter")"
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value="$(cat "$__object/parameter/value" 2>/dev/null \
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export delimiter="$(cat "$__object/parameter/delimiter")"
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export value="$(cat "$__object/parameter/value" 2>/dev/null \
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|| echo "__CDIST_NOTSET__")"
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case "$state" in
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absent)
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if grep -q -E "^$key$delimiter+" "$file"; then
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# if the key exists, with whatever value, we will have to remove it
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# so report it as present
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echo present
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else
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# key does not exist
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echo absent
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fi
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;;
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present)
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if grep -q -E "^$key$delimiter+$value$" "$file"; then
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# key exists and value is same
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echo present
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elif grep -q -E "^$key$delimiter+" "$file"; then
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# key exists, but value is empty or different
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echo wrongvalue
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else
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# key does not exist
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echo absent
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fi
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;;
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esac
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awk -f - "$file" <<"AWK_EOF"
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BEGIN {
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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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keydel=key delimiter
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line=keydel value
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found=0
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}
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# enter the main loop
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{
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i = index($0,keydel)
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if(i == 1) {
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found=1
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if(state == "absent") {
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# on state absent, only the ocurance is relevant, so exit here
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print "present"
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exit
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}
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# Key with separator found
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if($0 == line) {
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# exact match found, so state is present
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print "present"
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}
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else {
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# not value is wrong ...
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print "wrongvalue"
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}
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exit
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}
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}
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END {
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if(found == 0)
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print "absent"
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}
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AWK_EOF
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@ -2,6 +2,7 @@
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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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@ -18,6 +19,7 @@
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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 "$__object/parameter/key")"
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@ -25,39 +27,15 @@ key="$__object_id"
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state_should="$(cat "$__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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# escape double quotes, as that is what we use ourself below
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value_escaped="$(cat "$__object/parameter/value" | sed -e "s/\([\"]\)/\\\\\1/g")"
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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)
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# remove lines starting with key
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cat << DONE
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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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sed '/^$key\($delimiter\+\)/d' "$file" > "\$tmpfile"
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mv -f "\$tmpfile" "$file"
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DONE
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;;
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present)
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absent|present)
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case "$state_is" in
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absent)
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# add new key and value
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printf 'echo "%s%s%s" >> "%s"' "$key" "$delimiter" "$value_escaped" "$file"
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;;
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wrongvalue)
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# change exisiting value
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cat << DONE
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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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sed "s|^$key\($delimiter\+\).*|$key\\1$value_escaped|" "$file" > "\$tmpfile"
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mv -f "\$tmpfile" "$file"
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DONE
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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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@ -68,3 +46,64 @@ DONE
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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 "$__object/parameter/value")
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CDIST_INPUT_END_HERE_MARKER
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)"
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tmpfile=\$(mktemp "${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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keydel=key delimiter
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line=keydel value
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inserted=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 absent, simple yump over this line
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next
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}
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else {
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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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next
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}
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}
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else {
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print \$0
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}
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}
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END {
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if(inserted == 0 && state == "present" ) {
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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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