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workaround special case where the desired key was already present more then once in target file

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Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
This commit is contained in:
Steven Armstrong 2014-09-29 14:47:25 +02:00
parent 4c52b10f93
commit 41782cb107
1 changed files with 10 additions and 1 deletions
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11
cdist/conf/type/__ssh_authorized_key/gencode-remote
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@ -78,9 +78,18 @@ fi
# Determine the current state
entry="$(cat "$__object/files/should")"
state_should="$(cat "$__object/parameter/state")"
if grep -q -F -x "$entry" "$__object/explorer/entry"; then
num_existing_entries=$(grep -c -F -x "$entry" "$__object/explorer/entry")
if [ $num_existing_entries -eq 1 ]; then
state_is="present"
else
# Posix grep does not define the -m option, so we can not remove a single
# occurence of a string from a file in the `remove_line` function. Instead
# _all_ occurences are removed.
# By using `comm` to detect conflicting entries this could lead to the
# situation that the key we want to add is actually removed.
# To workaround this we must treat 0 or more then 1 existing entries to
# mean current state is 'absent'. By doing this, the key is readded
# again after cleaning up conflicting entries.
state_is="absent"
fi