38 lines
1.4 KiB
Bash
38 lines
1.4 KiB
Bash
#!/bin/sh
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# Compile in two disposable containers: the second must read the first's cache.
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set -eu
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image=${1:?Usage: verify-cache.sh IMAGE}
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nonce=$(mktemp -d)
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trap 'rmdir "$nonce"' EXIT
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prefix="validation:${image##*:}:$(basename "$nonce"):"
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for expected in miss hit; do
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docker run --rm -i --network gitea-runner-jobs --cpus 2 \
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--memory 2g --memory-swap 2g \
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-e SCCACHE_REDIS_ENDPOINT=redis://openwrt-rust-cache:6379 \
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-e SCCACHE_REDIS_KEY_PREFIX="$prefix" -e EXPECTED="$expected" \
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"$image" sh -es <<'PROBE'
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mkdir /tmp/sccache-probe
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cd /tmp/sccache-probe
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printf 'pub fn probe(n: u64) -> u64 { n.wrapping_mul(17) }\n' > probe.rs
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sccache --start-server
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trap 'sccache --stop-server' EXIT
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sccache --zero-stats
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sccache /builder/staging_dir/host/bin/rustc --crate-name ci_sccache_probe \
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--crate-type rlib --emit link,dep-info --out-dir . probe.rs
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sccache --show-stats
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sccache --show-stats --stats-format json > stats.json
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python3 - <<'PY'
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import json
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import os
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data = json.load(open("stats.json"))
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assert data["cache_location"].startswith("redis,"), data
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stats = data["stats"]
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field = "cache_hits" if os.environ["EXPECTED"] == "hit" else "cache_misses"
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assert sum(stats[field]["counts"].values()) == 1, data
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assert stats["cache_read_errors"] == stats["cache_write_errors"] == 0, data
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print("Verified persistent cache", os.environ["EXPECTED"])
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PY
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PROBE
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done
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