claude-bot
066b3f158b
Moves the Lean project to Lean 4.35.0 / Mathlib v4.35.0 to match the runner, caches the Mathlib project on the runner host, and builds and keeps the Docker image only after the Python and Lean jobs pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FYqwNMyPUHeTbFWg83GQq6
41 lines
1.4 KiB
Bash
Executable File
41 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Keep a ready Lean + Mathlib project on the runner host, keyed by the project's
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# toolchain and lakefile, so only the first job pays for the multi-GB cache fetch.
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#
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# prepare-mathlib.sh <lean-project-dir> prints the cached project path
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#
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# The runner executes jobs on the host (no container), so /opt/lean-cache persists
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# between jobs. A flock serialises concurrent jobs; .ready is written last, so an
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# interrupted preparation is redone rather than trusted.
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set -euo pipefail
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SRC="${1:?usage: prepare-mathlib.sh <lean-project-dir>}"
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ROOT="${LEAN_CACHE_ROOT:-/opt/lean-cache}"
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KEY="$(cat "$SRC/lean-toolchain" "$SRC/lakefile.toml" | sha256sum | cut -c1-12)"
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DIR="$ROOT/leanbench-$KEY"
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mkdir -p "$ROOT"
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exec 9>"$ROOT/.lock"
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flock 9
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if [ -f "$DIR/.ready" ]; then
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echo "prepare-mathlib: reusing $DIR" >&2
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else
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echo "prepare-mathlib: building $DIR (first run on this toolchain/lakefile)" >&2
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rm -rf "$DIR"
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cp -r "$SRC" "$DIR"
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cd "$DIR"
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elan toolchain install "$(cat lean-toolchain)" >&2
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timeout 1800 lake update >&2
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timeout 5400 lake exe cache get >&2
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start=$(date +%s)
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timeout 1200 lake env lean LeanBench.lean >&2 || {
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status=$?
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[ "$status" -eq 124 ] && echo "prepare-mathlib: 'import Mathlib' timed out; check RAM (free -h)" >&2
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exit "$status"
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}
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echo "prepare-mathlib: import Mathlib elaborated in $(( $(date +%s) - start ))s" >&2
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touch .ready
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fi
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echo "$DIR"
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