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bherbruck
ead02a9ec1
- difftest no longer waits for the test job; cpp clippy moves to the clippy job and the runner tests to the test job (both 8 vCPU), sharing a composite action that clones upstream, enables sccache and installs the C++ reference. - [profile.difftest.package.difftest] opt-level = 0: the ~300k-line runner crate took ~5 of the ~6 build minutes at opt-level 3; solidcore stays at 3. Reports are byte-identical. - difftest --jobs orders its queue by each unit's wall time in the previous run (reports/difftest/times.tsv, uploaded with main's reports), so the slowest unit starts first and the run ends at the longest unit's time. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0158BfaB2oaoX64fskuKP1bm
78 lines
3.2 KiB
YAML
78 lines
3.2 KiB
YAML
name: C++ reference
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description: >
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Clones upstream at the pinned commit, enables sccache and installs the C++ reference
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(bin/cpp layout) into $SOLIDCORE_CPP_DIR, so the cpp feature of solidcore-ffi builds.
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Expects UPSTREAM_REPO, UPSTREAM_COMMIT and SOLIDCORE_CPP_DIR in the job environment.
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runs:
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using: composite
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steps:
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- name: Clone upstream at pinned commit
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shell: bash
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run: |
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git init upstream
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git -C upstream remote add origin "$UPSTREAM_REPO"
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git -C upstream fetch --depth 1 origin "$UPSTREAM_COMMIT" \
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|| git -C upstream fetch origin
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git -C upstream checkout --detach "$UPSTREAM_COMMIT"
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# sccache caches the ~200 shim objects solidcore-ffi compiles (the cc crate wraps the
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# C++ compiler in RUSTC_WRAPPER when it is sccache) and the workspace crates, which
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# rust-cache does not keep; both survive across runs in the GitHub Actions cache.
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- name: Set up sccache
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uses: mozilla-actions/sccache-action@v0.0.11
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- name: Enable sccache
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shell: bash
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run: |
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echo "SCCACHE_GHA_ENABLED=true" >> "$GITHUB_ENV"
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echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
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# The difftest run is idle for sccache for minutes; without this the server
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# exits after 10 idle minutes and the stats printed at the end read zero.
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echo "SCCACHE_IDLE_TIMEOUT=0" >> "$GITHUB_ENV"
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# The C++ reference (bin/cpp/lib) comes prebuilt from the GitHub Release that
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# .github/workflows/cpp-reference.yml publishes for scripts/cpp-ref-key.sh's key.
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# When none matches (a PR that changes harness/cpp before it is published), build it
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# from source and keep that build in actions/cache under the same key. It lives
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# outside cargo's target dir (bin/): rust-cache's post-step cleans bin/.
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- name: C++ reference key
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id: cppkey
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shell: bash
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run: echo "key=$(scripts/cpp-ref-key.sh)" >> "$GITHUB_OUTPUT"
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- name: Restore C++ reference built from source
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uses: actions/cache/restore@v4
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with:
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path: .cpp
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key: cpp-v3-${{ runner.os }}-${{ steps.cppkey.outputs.key }}
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- name: Fetch C++ reference (build it when no prebuilt matches)
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id: cpp
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shell: bash
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run: |
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cpp=$SOLIDCORE_CPP_DIR
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if [ -f "$cpp/lib/libSMLib.a" ] && [ -f "$cpp/lib/libSM_API.a" ] && [ -f "$cpp/ffi.env" ]; then
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echo "C++ reference restored from cache"
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exit 0
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fi
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command -v zstd >/dev/null || sudo apt-get install -y zstd
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rc=0
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scripts/fetch-cpp.sh --no-build || rc=$?
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if [ "$rc" = 3 ]; then
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sudo apt-get update && sudo apt-get install -y ninja-build cmake g++
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harness/cpp/build.sh --no-tests --jobs "$(nproc)"
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echo "built=true" >> "$GITHUB_OUTPUT"
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elif [ "$rc" != 0 ]; then
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exit "$rc"
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fi
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# Several jobs may build the same key at once; only the first save wins, the
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# others log a warning.
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- name: Save C++ reference built from source
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if: steps.cpp.outputs.built == 'true'
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uses: actions/cache/save@v4
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continue-on-error: true
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with:
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path: .cpp
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key: cpp-v3-${{ runner.os }}-${{ steps.cppkey.outputs.key }}
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