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boshu
65 lines
1.2 KiB
Bash
Executable File
65 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# regression-bisect.sh
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# Deterministic helper for bisecting regressions between a known-good and bad commit.
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#
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# Usage:
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# scripts/regression-bisect.sh --good <sha> --bad <sha> --check "<command>"
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# Example:
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# scripts/regression-bisect.sh --good abc123 --bad def456 --check "go test ./internal/gates/..."
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GOOD=""
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BAD=""
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CHECK=""
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--good)
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GOOD="${2:-}"
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shift 2
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;;
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--bad)
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BAD="${2:-}"
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shift 2
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;;
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--check)
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CHECK="${2:-}"
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shift 2
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;;
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-h|--help)
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sed -n '1,20p' "$0"
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exit 0
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;;
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*)
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echo "Unknown argument: $1" >&2
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exit 2
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;;
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esac
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done
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if [[ -z "$GOOD" || -z "$BAD" || -z "$CHECK" ]]; then
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echo "Missing required arguments. Use --good, --bad, and --check." >&2
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exit 2
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fi
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echo "Starting regression bisect"
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echo " good: $GOOD"
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echo " bad: $BAD"
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echo " check: $CHECK"
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git bisect reset >/dev/null 2>&1 || true
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git bisect start "$BAD" "$GOOD"
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set +e
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git bisect run bash -lc "$CHECK"
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RC=$?
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set -e
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echo
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echo "Bisect complete. Current commit is the first bad commit candidate:"
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git rev-parse --short HEAD
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git bisect reset >/dev/null 2>&1 || true
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exit "$RC"
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