scripts/gate-concurrency.sh

1#!/bin/sh

2set -eu

4sigil_bin=${SIGIL_BIN:?set SIGIL_BIN to the production sigil binary}

5channel=${SIGIL_CHANNEL:-$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)}

6recipe=${1:-zlib}

7gate_root=$(mktemp -d /tmp/sigil-channel-concurrency.XXXXXX)

8store=$gate_root/store

10realize_pair() {

11 label=$1

12 "$sigil_bin" external-build realize "$recipe" --channel "$channel" --store "$store" \

13 >"$gate_root/$label.a" 2>"$gate_root/$label.a.err" &

14 pid_a=$!

15 "$sigil_bin" external-build realize "$recipe" --channel "$channel" --store "$store" \

16 >"$gate_root/$label.b" 2>"$gate_root/$label.b.err" &

17 pid_b=$!

18 wait "$pid_a"

19 wait "$pid_b"

20 hash_a=$(tail -n 1 "$gate_root/$label.a")

21 hash_b=$(tail -n 1 "$gate_root/$label.b")

22 test "$hash_a" = "$hash_b"

23 printf '%s statuses=0,0 hash=%s\n' "$label" "$hash_a"

24}

26# The first pair intentionally starts with neither source nor derivation in the

27# fresh store. The second pair retains the original warm-hit race coverage.

28realize_pair cold

29realize_pair warm

30printf 'transcripts=%s\n' "$gate_root"