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content/notes/2024-10-29/5icpu/index.md

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+---
+date: 2024-10-29T10:35:52.127Z
+publishDate: 2024-10-29T10:35:52.127Z
+tags:
+  - overmind
+  - rails
+---
+
+I just threw together a script for easily attaching a debugger to any of your [overmind](/tags/overmind) run processes. let me know if it's useful!
+
+I'm using it for attaching to my [rails](/tags/rails) processes, as I don't like how `overmind connect web` echoes _everything_ the web process outputs.
+
+```sh bin/debug
+#!/usr/bin/env sh
+
+if [[ "$1" == "--help" ]]; then
+  echo "Usage: $0 [web/worker/etc…]"
+  echo
+  echo "Attach an rdbg debugger to the named overmind process. (default: web)"
+  exit 0
+fi
+
+PROCESS=${1:-web}
+PROCESS_PID=$(overmind ps | grep -E "^${PROCESS}" | tr -s ' '  | cut -d' ' -f2)
+[[ -z $PROCESS_PID ]] && { echo "There is no running overmind process called '$PROCESS'" >&2; exit 1; }
+DEBUGGER_PID=$(pgrep -P $PROCESS_PID)
+[[ -z $DEBUGGER_PID ]] && { echo "The $PROCESS process doesn't seem to have any child processes" >&2; exit 1; }
+
+bundle exec rdbg -An "rdbg-$DEBUGGER_PID"
+```