#!/bin/bash

# This script is used to trick the GitHub action for golangci-lint to run
# inside a container so that we can use the local build of streamplace.
#
# On runner images >= 20260823, the action-spawned podman exec wedges in
# sem_wait on the rootless SHM container lock (libpod LockSemaphore inside
# ExecCreate) — some other process takes the lock and never releases it.
# Buffer stdio through files, and on a hang dump diagnostics identifying
# the lock holder, then fail fast instead of eating the job timeout.

set -uo pipefail

OUT="$(mktemp)"
ERR="$(mktemp)"
trap 'rm -f "$OUT" "$ERR"' EXIT

podman exec golangci-lint golangci-lint "$@" </dev/null >"$OUT" 2>"$ERR" &
pid=$!

seconds=0
while kill -0 "$pid" 2>/dev/null && [ "$seconds" -lt 900 ]; do
  sleep 1
  seconds=$((seconds + 1))
done

if kill -0 "$pid" 2>/dev/null; then
  {
    echo "wrapper: podman exec still running after ${seconds}s; diagnostics:"
    echo "--- podman-family processes:"
    pgrep -af 'podman|conmon|pasta|catatonit' || true
    echo "--- processes with the libpod lock segment mapped:"
    for p in $(sudo grep -l libpod /proc/[0-9]*/maps 2>/dev/null | cut -d/ -f3); do
      echo "pid $p: $(tr '\0' ' ' <"/proc/$p/cmdline" 2>/dev/null)"
    done
    echo "--- kernel stacks:"
    for p in $(pgrep 'podman|conmon'); do
      echo "pid $p: $(tr '\0' ' ' <"/proc/$p/cmdline" 2>/dev/null)"
      sudo cat "/proc/$p/stack" 2>/dev/null || true
    done
    echo "--- goroutine dump of the stuck client ($pid):"
  } >&2
  kill -QUIT "$pid" 2>/dev/null || true
  sleep 5
  kill -KILL "$pid" 2>/dev/null || true
fi

wait "$pid"
code=$?

cat "$OUT"
cat "$ERR" >&2
exit $code