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Error handling in bash with sentry support
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| #!/usr/bin/env bash | |
| set -eTEuo pipefail | |
| function get_pgid() { | |
| cut -d " " -f 5 < "/proc/$$/stat" | tr ' ' '\n' | |
| } | |
| pgid="$(get_pgid)" | |
| if [[ "$$" != "$pgid" ]]; then | |
| exec setsid "$(readlink -f "$0")" "$@" | |
| fi | |
| SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]:-.}" )" &> /dev/null && pwd )" | |
| function stacktrace() { | |
| cd "$SCRIPT_DIR" | |
| local i=1 line file func | |
| while read -r line func file < <(caller "$i"); do | |
| echo "[$i] $file:$line $func(): $(sed -n "$line"p "$file")" 1>&2 | |
| i=$((i+1)) | |
| done | |
| } | |
| trap 'set +x; end 1' SIGUSR1 SIGTERM | |
| trap 'set +x; end' EXIT | |
| trap 'set +x; catch_err $?' ERR | |
| function catch_err() { | |
| stacktrace_msg="$(stacktrace 2>&1)" | |
| send_sentry "$1" "$stacktrace_msg" | |
| 1>&2 echo -e "$stacktrace_msg" | |
| if [[ "$$" == "$BASHPID" ]]; then | |
| end 1 | |
| else | |
| PGID="$(get_pgid)" | |
| kill -10 -- "$PGID" | |
| sleep 1 | |
| kill -15 -- -"$PGID" | |
| fi | |
| } | |
| function cleanup() { | |
| rm -rf "${TMP_FILE:-}" || true # FIXME | |
| } | |
| function end() { | |
| local return_code="${1:-}" | |
| trap '' EXIT | |
| set +e # At this point, if things fail, we can't do much more | |
| [[ -z "$(jobs -p)" ]] || kill "$(jobs -p)" 2> /dev/null | |
| if [[ "$$" == "$BASHPID" ]]; then | |
| cleanup | |
| fi | |
| [[ -z "$return_code" ]] || exit "$return_code" | |
| } | |
| function send_sentry() { | |
| # Don't do anything if sentry-cli command doesn't exist | |
| if ! command -v sentry-cli &> /dev/null; then | |
| return | |
| fi | |
| local return_code="$1" | |
| local stacktrace_msg="$2" | |
| cd "$SCRIPT_DIR" | |
| local line file func | |
| read -r line func file < <(caller 1) | |
| error_line="$(sed -n "$line"p "$file" | awk '{$1=$1};1')" | |
| sentry-cli send-event -m "$error_line: return code $return_code" \ | |
| -a "$stacktrace_msg" \ | |
| -t user_sudo:"${SUDO_USER:-${USER:-undefined}}" || echo Could not send sentry event 1>&2 | |
| } |
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