File size: 8,837 Bytes
5a9e79d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | # LoLBench eval image: CPython PR-29581 (PEP 654: Exception Groups and except*)
# Requirement: https://peps.python.org/pep-0654/
# base_commit: 850aefc2c651110a784cd5478af9774b1f6287a3 (parent of
# merge commit d60457a6673cf0263213c2f2be02c633ec2e2038
# — see spec.json base_commit_note for why this overrides
# the CSV value)
#
# Agent-facing contract (the agent does NOT run anything inside this image;
# the evaluator runs the container after the agent submits a solution.patch):
#
# docker run --rm \
# --network=none \
# -v $(pwd)/solution.patch:/in/solution.patch:ro \
# -v $(pwd)/out:/out \
# lolbench/cpython-pr-29581:1
#
# Unlike the PEP-768 instance, this PR (PEP 654's except* statements
# + ExceptionGroup machinery) does NOT need --cap-add=SYS_PTRACE: the
# new exception path runs entirely in-process. The container stays
# --network=none with the default seccomp profile.
#
# Because the agent's code never executes here, the container runs every
# step as root — no agent UID, no chown of /usr/local, no runuser dance.
#
# Layered build per docs/executable_environment_plan.md §4:
# layer 1: ubuntu:22.04
# layer 2: lolbench/cpython-base:1 (toolchain + stdlib build deps)
# layer 3: THIS image (cpython @ base_commit + built python + private bundle)
ARG BASE_IMAGE=lolbench/cpython-base:1
FROM ${BASE_IMAGE}
ARG BASE_COMMIT=850aefc2c651110a784cd5478af9774b1f6287a3
# ---- Per-instance dirs ------------------------------------------------
# /opt/lolbench/private/ holds the eval-side artifacts (eval_tests.patch,
# selectors, golden solution.patch, run_tests.sh). We keep the path
# name `private` to document intent; perms are default since the
# container is only ever run by the trusted evaluator.
RUN mkdir -p /opt/lolbench/private /in /out /workspace
# ---- Source tree at base_commit ---------------------------------------
# After fetching at the exact base_commit, we reset git history so
# `git log` inside the container does not reveal the SHA (kept for
# tidiness; the evaluator already knows the base, the agent never
# sees the container).
WORKDIR /workspace
RUN git init cpython && \
cd cpython && \
git remote add origin https://github.com/python/cpython.git && \
git fetch --no-tags origin ${BASE_COMMIT} && \
git checkout ${BASE_COMMIT} && \
git config user.email lolbench@local && \
git config user.name lolbench && \
if ! git diff --quiet || ! git diff --cached --quiet || [ -n "$(git ls-files --others --exclude-standard)" ]; then \
git add -A && git -c commit.gpgsign=false commit -q -m "LoLBench environment overlay"; \
fi && \
git tag -f base && git tag -f lolbench-base && \
git for-each-ref --format='%(refname)' refs/heads refs/remotes refs/tags | \
while read ref; do \
case "$ref" in refs/tags/base|refs/tags/lolbench-base) ;; *) git update-ref -d "$ref" ;; esac; \
done && \
( git remote remove origin 2>/dev/null || true ) && \
rm -f .git/FETCH_HEAD && \
git reflog expire --expire=now --all && \
git repack -Ad && \
git prune --expire=now && \
git config --global --add safe.directory /workspace/cpython
# ---- Pre-build CPython at base_commit ---------------------------------
# A single full build at base_commit warms the build tree so that
# applying solution.patch at eval time only triggers an incremental
# rebuild (Make handles the dependency graph). We deliberately do NOT
# pre-apply the patch — the eval/validate dispatcher decides which
# patch to apply per run.
#
# Build flags rationale:
# --prefix=/usr/local : keep system layout; we use ./python, not the
# installed binary, so the install step is omitted
# --with-pydebug : OFF (default). Enabling pydebug doubles test
# duration and changes ABI in ways unrelated to
# PEP 654. We build the release configuration.
# --enable-shared : OFF (default). The static interpreter is what
# regrtest expects.
# PEP 654 build : no extra configure flags. solution.patch
# extends Grammar/python.gram with except*
# productions, regenerates Parser/parser.c
# (+2770/-1826 lines), adds ast.TryStar +
# ExceptHandler ASDL nodes, the new opcode
# CHECK_EG_MATCH (and related), and the runtime
# BaseExceptionGroup/ExceptionGroup classes
# in Objects/exceptions.c. ExceptionGroup as a
# builtin type was added in a separate earlier
# PR (3.11 alpha); THIS PR adds the except*
# syntactic form on top of it. At pre-state
# neither the except* parser productions nor
# the new opcodes exist → base build is plain
# CPython 3.11.0a3-era from 850aefc2.
# `set -o pipefail` so `make ... | tee log` propagates make's non-zero
# exit; otherwise a broken CPython build could ship as a green image
# (the pipeline's exit status would be tee's exit status, which is 0).
SHELL ["/bin/bash", "-o", "pipefail", "-c"]
RUN cd /workspace/cpython && \
./configure --prefix=/usr/local --enable-optimizations=no && \
jobs=$(awk '$1!="max"{printf("%d", ($1+$2-1)/$2)}' /sys/fs/cgroup/cpu.max 2>/dev/null); \
: "${jobs:=$(nproc)}"; \
[ "$jobs" -lt 1 ] && jobs=1; \
make -j"$jobs" 2>&1 | tee /tmp/cpython-build.log | tail -400
# ---- Eval bundle ------------------------------------------------------
# All eval-side files live in the instance directory root. The
# Dockerfile bakes them into /opt/lolbench/private/ inside the
# container; the path name is just a stable tooling convention since
# the container runs as root throughout (the agent/evaluator boundary
# is the eval API, not Unix permissions).
# Harbor runtime adapter: keep the image public/agent-safe.
RUN mkdir -p /opt/lolbench /logs/artifacts /logs/agent /logs/verifier /in /out && \
if ! id -u agent >/dev/null 2>&1; then useradd -m -s /bin/bash agent; fi
COPY metadata.json /opt/lolbench/metadata.json
COPY lolbench-submit /usr/local/bin/lolbench-submit
RUN chmod +x /usr/local/bin/lolbench-submit && \
git config --global --add safe.directory /workspace/cpython && \
if [ -d /workspace/cpython/.git ]; then \
cd /workspace/cpython && git ls-files --others --exclude-standard | sort > /opt/lolbench/base_untracked.txt; \
else \
: > /opt/lolbench/base_untracked.txt; \
fi && \
chown -R agent:agent /workspace/cpython /logs
# Local-reference hardening: retain only the approved base history.
RUN cd /workspace/cpython && \
git for-each-ref --format='%(refname)' refs/heads refs/remotes refs/tags | \
while read ref; do \
case "$ref" in refs/tags/base|refs/tags/lolbench-base) ;; *) git update-ref -d "$ref" ;; esac; \
done && \
( git remote remove origin 2>/dev/null || true ) && \
rm -f .git/FETCH_HEAD && \
git reflog expire --expire=now --all && \
git repack -Ad && \
git prune --expire=now && \
unreachable=$(git fsck --unreachable --no-reflogs) && \
test -z "$unreachable" && \
chown -R agent:agent .git
# Remove installed Python source copies/backports and package caches.
RUN for root in /usr/local/lib /usr/lib; do \
[ ! -d "$root" ] || find "$root" -type d \
\( -path '*/site-packages/pip' -o -path '*/dist-packages/pip' -o \
-name ensurepip -o -name tomllib -o -name zoneinfo -o \
-path '*/site-packages/tomli*' -o -path '*/dist-packages/tomli*' -o \
-path '*/site-packages/typing_extensions*' -o -path '*/dist-packages/typing_extensions*' -o \
-path '*/site-packages/exceptiongroup*' -o -path '*/dist-packages/exceptiongroup*' \) \
-prune -exec rm -rf '{}' +; \
[ ! -d "$root" ] || find "$root" -type f \
\( -name 'tomli*.py' -o -name 'typing_extensions*.py' -o -name 'exceptiongroup*.py' \) -delete; \
done && \
rm -rf /usr/share/python-wheels /usr/share/python3-wheels \
/root/.cache/pip /root/.cache/uv /home/agent/.cache/pip /home/agent/.cache/uv && \
rm -f /usr/local/bin/pip /usr/local/bin/pip3 /usr/local/bin/pip3.* \
/usr/bin/pip /usr/bin/pip3 /usr/bin/pip3.* && \
for p in /usr/local/lib/python*/site-packages /usr/lib/python*/dist-packages; do \
[ ! -d "$p" ] || { chown -R root:root "$p"; chmod -R go-w "$p"; chmod 0711 "$p"; }; \
done
USER agent
WORKDIR /workspace/cpython
ENV LOLBENCH_INSTANCE_ID=cpython_4
ENV LOLBENCH_SOURCE_SLUG=CPython_PEP-654_Exception-Groups-and-except_PR-29581
|