refactor post-merge hook
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scripts/post-merge
Normal file → Executable file
55
scripts/post-merge
Normal file → Executable file
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@ -4,54 +4,27 @@
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#
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# 1. copy to .git/hooks
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# 2. to test run "git pull -q"
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# 3. create cronjob, which runs "git pull -q" in your ${icvpn} dir
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# 3. create cronjob running "git pull -q -C /etc/tinc/icvpn/"
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#
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icvpndir=/etc/tinc/icvpn/
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tinccfg=tinc.conf
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export icvpndir tinccfg
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PATH="/sbin:/bin:/usr/sbin:/usr/bin"
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tmpfile=$(mktemp)
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export PATH tmpfile
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# get changed files
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changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"
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# run $2 if $1 matches changed files
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check_run() {
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echo "$changed_files" | grep --quiet "$1" && eval "$2"
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fail() {
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echo "$1" >&2
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exit 1
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}
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# generate ${tinccfg}
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gen_conf() {
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test -w ${icvpndir}/${tinccfg} || \
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{ echo "ERR: ${tinccfg} (${icvpndir}/${tinccfg}) is not writeable, exiting." >&2; exit 1; }
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BASE=$(git rev-parse --show-toplevel)
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TINCCFG=$BASE/tinc.conf
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test -w $TINCCFG || fail "ERR: $TINCCFG is not writeable"
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# remove all ConnectTo Statements
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grep -v 'ConnectTo' ${icvpndir}/${tinccfg} > ${tmpfile}
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# add ConnectTo Statements for all hosts
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for host in ${icvpndir}/hosts/[a-zA-Z]*; do
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echo "ConnectTo = ${host##*/}" >> ${tmpfile}
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done
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sed -i '/^ConnectTo/d' $TINCCFG
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test -s ${tmpfile} || \
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{ echo "ERR: generated config was empty, zeh sky is falling, exiting." >&2; exit 2; }
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for HOST in hosts/*; do
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# skip hosts without address
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grep -q '^Address' -- "$HOST" || continue
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num_connectto=$(grep -s ConnectTo ${tmpfile} | wc -l)
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[ ${num_connectto} -gt 20 ] || \
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{ echo "ERR: generated config has ${num_connectto} <= 20 ConnectTo lines, safety 1st, exiting." >&2; exit 30; }
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num_all=$(cat ${tmpfile} | wc -l)
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[ ${num_all} -gt 25 ] || \
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{ echo "ERR: generated config has ${num_all} <= 25 lines, safety 1st, exiting." >&2; exit 31; }
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echo "ConnectTo = ${HOST##*/}" >> $TINCCFG
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done
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cp -f ${icvpndir}/${tinccfg} ${icvpndir}/${tinccfg}.old
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cat ${tmpfile} > ${icvpndir}/${tinccfg}
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invoke-rc.d tinc reload icvpn
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invoke-rc.d tinc reload icvpn
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}
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check_run hosts/[a-zA-Z] gen_conf
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rm -f ${tmpfile}
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exit 0
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