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#! /bin/sh
set -euf
if test -e nag.hosts.ls; then
echo "nag seems to run already... if not, then delete $workdir/nag.*, please"
exit 23
fi
trap 'rm -f nag.hosts.ls nag.services.ls nag.patch' EXIT INT QUIT
# usage: git_pull_output_filter REPO_NAME
git_pull_output_filter() {
sed -n 's/^ [0-9]\+ file change/'"$1"': &/p'
}
if ! test -d nag.hosts; then
git clone "$hosts_repo" nag.hosts
else
(cd nag.hosts && git pull) | git_pull_output_filter hosts
fi
if ! test -d nag.services; then
git clone "$services_repo" nag.services
else
(cd nag.services && git pull) | git_pull_output_filter services
fi
(cd nag.hosts && ls | sort) > nag.hosts.ls
(cd nag.services && ls | sort) > nag.services.ls
diff -u nag.hosts.ls nag.services.ls > nag.patch || :
missing_services=$(sed -n '1d;2d;s/^-\(.*\)/\1/p' nag.patch | tr '\n' ' ')
obsolete_services=$(sed -n '1d;2d;s/^+\(.*\)/\1/p' nag.patch | tr '\n' ' ')
#
# output
#
if test -n "$missing_services"; then
echo missing services: $missing_services
fi
if test -n "$obsolete_services"; then
echo obsolete services: $obsolete_services
fi
# if asked directly, answer if there is nothing to nag about
if test -z "$missing_services$obsolete_services" -a -n "${_from:-}";then
echo "nothing to nag about"
fi
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