Justin Visser
8c8d5bca11
Before starting, each port (8080, 5173) is checked via ss; an existing listener is reported with PID and command, and an interactive run asks permission to kill it (default yes). Non-interactive runs abort instead: never kill processes silently. Born from a real incident: an orphaned smoke-test server held 8080 and dev.sh only said 'address already in use'.
56 lines
1.6 KiB
Bash
Executable file
56 lines
1.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Local dev stack in one command:
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# - Go API on localhost:8080
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# - Vite dev server on localhost:5173 (proxies /api to the Go server)
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# One Ctrl-C stops everything; if either server dies, the other is stopped.
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# If a port is already taken (usually a stale server), offers to kill it.
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set -euo pipefail
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cd "$(dirname "$0")"
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# free_port checks whether something is listening on the port and, when run
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# interactively, offers to kill it. Otherwise it refuses to continue: never
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# kill processes silently.
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free_port() {
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local port="$1" name="$2"
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local listener_pid
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listener_pid=$(ss -tlnp "sport = :$port" 2>/dev/null | grep -oP 'pid=\K[0-9]+' | head -1 || true)
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[ -z "$listener_pid" ] && return 0
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local listener_cmd
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listener_cmd=$(ps -p "$listener_pid" -o comm= 2>/dev/null || echo unknown)
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echo "dev.sh: port $port ($name) is already in use by PID $listener_pid ($listener_cmd)."
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local answer="n"
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if [ -t 0 ]; then
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read -r -p "Kill it and continue? [Y/n] " answer
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answer=${answer:-y}
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fi
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case "$answer" in
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[Yy]*)
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kill "$listener_pid"
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sleep 0.5
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;;
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*)
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echo "dev.sh: aborting; free port $port first."
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exit 1
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;;
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esac
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}
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free_port 8080 "Go API"
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free_port 5173 "Vite"
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if [ ! -d web/node_modules ]; then
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echo "dev.sh: first run, installing frontend dependencies..."
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(cd web && npm install)
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fi
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# On exit (Ctrl-C included), stop whichever background job is still running.
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trap 'kill $(jobs -p) 2>/dev/null' EXIT
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go run ./cmd/spreadlab &
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(cd web && npm run dev) &
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# wait -n returns when the FIRST job exits; the trap then cleans up the rest.
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wait -n
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