ci(build): flip windows lane to self-hosted VM217 (fork-gated) - #617
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VM217 (c2pool-windows-217) toolchain probe run 28679257030 is green across Python 3.12, Conan 2, CMake, Git and MSVC/VS 2022 C++ build tools. Route internal PRs/pushes to the self-hosted runner via the #439 fork-gate expr; fork PRs keep GitHub-hosted windows-2022. setup-python gated to github-hosted so VM217 uses its pre-provisioned interpreter. Last GitHub-hosted C++ lane.
VM217 self-hosted has Python 3.12 pre-provisioned; the ungated setup-python step re-extracted python via setup.ps1 and tripped a machine ExecutionPolicy SecurityError (PSSecurityException). Gate it to runner.environment == github-hosted, matching every Linux lane, so self-hosted uses the pre-provisioned toolchain.
…h on service PATH) The windows job self-hosted canary (run 28679621680, 9280bc1) passed the gated setup-python skip but failed the next step: Install Conan 2 ran shell:bash and VM217s runner-service account has no bash on PATH -> "bash: command not found". Conan 2 is provisioned on VM217 (probe run 28679257030). Convert the step to shell:powershell, which resolves on both the self-hosted lane and the fork-fallback windows-2022 lane.
VM217 Windows PowerShell runs at ExecutionPolicy=Restricted; the runner cannot source its temp .ps1 command files (PSSecurityException / UnauthorizedAccess), which failed the Install Conan step on run 28679851820. Set a job-level defaults.run.shell to the Bypass form proven green by probe 28679257030, so all PowerShell steps (Install Conan, Detect Conan profile, Conan install, Build secp256k1, Verify binary) inherit it; the two cmd steps override locally.
…to GITHUB_PATH VM217 does not expose conan on the runner-service PATH; the pre-provisioned assumption caused CommandNotFoundException at Install Conan 2 (run 28680092936). Install unconditionally and prepend the pip Scripts dir(s) via GITHUB_PATH so this step and Detect profile / Conan install resolve the binary.
VM217 runner-service PATH exposes python (3.12) but not the bare pip launcher, so "pip install" hit CommandNotFoundException. Invoke pip via its module entrypoint, which resolves through the already-working python.
VM217 runner-service PATH exposes neither conan nor a bare python (setup-python is gated off for self-hosted), so python -m pip hit CommandNotFoundException. Resolve an interpreter ourselves (py -> python3 -> python) with where.exe diagnostics on miss, and fix the unquoted sysconfig.get_path(scripts) NameError.
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The concurrency group is per-ref (github.workflow-github.ref). On master, every merge is a push to the same ref, so back-to-back merges share one group and cancel-in-progress kills the prior merge in-flight rollup before it verifies green. #626 (concurrency-groups) bit the #617 web-static lane exactly this way: the last completed master CI run (28692641464) shows Web-static verify=cancelled while Windows x86_64=success. Gate cancel-in-progress to non-push events only. PR churn (rapid re-pushes to a PR ref) still de-dupes and sheds the shared-pool OOM load that #626 targeted; master/release/tag runs always run to completion so a merged SHA is actually verified. Fenced to the concurrency block, no job changes. Co-authored-by: frstrtr <frstrtr@users.noreply.github.com>
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Flips the
windowsbuild.yml job from GitHub-hostedwindows-2022to self-hosted c2pool-windows-217 (VM217) for internal PRs/pushes, with a fork fallback towindows-2022.Evidence: toolchain probe run 28679257030 is green across all steps: Python 3.12, Conan 2, CMake, Git, MSVC/VS 2022 C++ build tools. Runner online with labels
[self-hosted, X64, Windows, c2pool-build].Changes:
runs-on-> ci(build): full self-hosted switch — Linux-905 (32c) + macOS M4/Intel + Windows-217, fork-gated #439 fork-gate expr: internal ->[self-hosted, Windows, X64, c2pool-build], forks ->windows-2022.actions/setup-python@v6gated torunner.environment == github-hosted(VM217 has Python pre-provisioned).runner.environment(unchanged).Completes the #439 self-hosted migration -- Windows was the last GitHub-hosted C++ lane. Merge-gated on operator push-approval.