114 lines
3.3 KiB
Bash
114 lines
3.3 KiB
Bash
#!/usr/bin/env bash
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# These variable must be set before the main body is called
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SOLANA_LOCK_FILE="${SOLANA_LOCK_FILE:?}"
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SECONDARY_DISK_MOUNT_POINT="${SECONDARY_DISK_MOUNT_POINT:?}"
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SSH_AUTHORIZED_KEYS="${SSH_AUTHORIZED_KEYS:?}"
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FORCE_DELETE="${FORCE_DELETE}"
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RC=false
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if [[ -f "${SOLANA_LOCK_FILE}" ]]; then
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exec 9<>"${SOLANA_LOCK_FILE}"
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flock -x -n 9 || ( echo "Failed to acquire lock!" 1>&2 && exit 1 )
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# shellcheck disable=SC1090
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. "${SOLANA_LOCK_FILE}"
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if [[ "${SOLANA_LOCK_USER}" = "${SOLANA_USER}" || -n "${FORCE_DELETE}" ]]; then
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# Begin running process cleanup
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CLEANUP_PID=$$
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CLEANUP_PIDS=()
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CLEANUP_PPIDS=()
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get_pids() {
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CLEANUP_PIDS=()
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CLEANUP_PPIDS=()
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declare line maybe_ppid maybe_pid
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while read -r line; do
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read -r maybe_ppid maybe_pid _ _ _ _ _ _ _ _ <<<"${line}"
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CLEANUP_PIDS+=( "${maybe_pid}" )
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CLEANUP_PPIDS+=( "${maybe_ppid}" )
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done < <(ps jxh | sort -rn -k2,2)
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}
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CLEANUP_PROC_CHAINS=()
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resolve_chains() {
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CLEANUP_PROC_CHAINS=()
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declare i pid ppid handled n
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for i in "${!CLEANUP_PIDS[@]}"; do
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pid=${CLEANUP_PIDS[${i}]}
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ppid=${CLEANUP_PPIDS[${i}]}
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handled=false
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for j in "${!CLEANUP_PROC_CHAINS[@]}"; do
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if grep -q "^${ppid}\b" <<<"${CLEANUP_PROC_CHAINS[${j}]}"; then
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CLEANUP_PROC_CHAINS[${j}]="${pid} ${CLEANUP_PROC_CHAINS[${j}]}"
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handled=true
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break
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elif grep -q "\b${pid}\$" <<<"${CLEANUP_PROC_CHAINS[${j}]}"; then
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CLEANUP_PROC_CHAINS[${j}]+=" ${ppid}"
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handled=true
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# Don't break, we may be the parent of may proc chains
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fi
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done
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if ! ${handled}; then
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n=${#CLEANUP_PROC_CHAINS[@]}
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CLEANUP_PROC_CHAINS[${n}]="${pid} ${ppid}"
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fi
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done
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}
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# Kill screen sessions
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while read -r SID; do
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screen -S "${SID}" -X quit
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done < <(screen -wipe 2>&1 | sed -e 's/^\s\+\([^[:space:]]\+\)\s.*/\1/;t;d')
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# Kill tmux sessions
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tmux kill-server &> /dev/null
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# Kill other processes
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for SIG in INT TERM KILL; do
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get_pids
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if [[ ${#CLEANUP_PIDS[@]} -eq 0 ]]; then
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break
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else
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resolve_chains
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for p in "${CLEANUP_PROC_CHAINS[@]}"; do
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if ! grep -q "\b${CLEANUP_PID}\b" <<<"${p}"; then
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read -ra TO_KILL <<<"${p}"
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N=${#TO_KILL[@]}
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ROOT_PPID="${TO_KILL[$((N-1))]}"
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if [[ 1 -ne ${ROOT_PPID} ]]; then
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LAST_PID_IDX=$((N-2))
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for I in $(seq 0 ${LAST_PID_IDX}); do
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pid="${TO_KILL[${I}]}"
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kill "-${SIG}" "${pid}" &>/dev/null
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done
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fi
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fi
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done
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get_pids
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if [[ ${#CLEANUP_PIDS[@]} -gt 0 ]]; then
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sleep 5
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fi
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fi
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done
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# End running process cleanup
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# Begin filesystem cleanup
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git clean -qxdff
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rm -f /solana-scratch/* /solana-scratch/.[^.]*
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cat > "${HOME}/.ssh/authorized_keys" <<EOAK
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${SSH_AUTHORIZED_KEYS}
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EOAK
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EXTERNAL_CONFIG_DIR="${SECONDARY_DISK_MOUNT_POINT}/config/"
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if [[ -d "${EXTERNAL_CONFIG_DIR}" ]]; then
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rm -rf "${EXTERNAL_CONFIG_DIR}"
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fi
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# End filesystem cleanup
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RC=true
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else
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echo "Invalid user: expected \"${SOLANA_LOCK_USER}\" got \"${SOLANA_USER}\"" 1>&2
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fi
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exec 9>&-
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fi
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${RC}
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