ci.yml

# SPDX-License-Identifier: MPL-2.0
name: CI
permissions:
  contents: read
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
jobs:
  test:
    name: Julia ${{ matrix.julia-version }} - ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        julia-version: ['1.10', '1.11']
        os: [ubuntu-latest]
        # macos-latest dropped 2026-06-19: macOS runner minutes exhausted -> ci.yml
        # startup_failure blocked merges; ubuntu covers the matrix. Restore when available.
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: julia-actions/setup-julia@4c0cb0fce8556fdb04a90347310e5db8b1f98fb9 # v2
        with:
          version: ${{ matrix.julia-version }}
      - uses: julia-actions/cache@e97f6fc1a6e21c82253c85e269be7340376aa425 # v2

      # Skein depends on the estate packages AcceleratorGate.jl (hard dep) and
      # KnotTheory.jl (weakdep) as adjacent path-deps — Manifest.toml pins
      # path = "../AcceleratorGate.jl" and "../KnotTheory.jl". Neither is in a
      # registry, so check them out as siblings before instantiate, otherwise
      # Pkg.instantiate() fails with "AcceleratorGate ... required but not installed".
      - name: Check out sibling estate path-deps
        run: |
          git clone --depth 1 https://github.com/hyperpolymath/AcceleratorGate.jl.git ../AcceleratorGate.jl
          git clone --depth 1 https://github.com/hyperpolymath/KnotTheory.jl.git ../KnotTheory.jl

      # The committed Manifest.toml was resolved with Julia 1.12 and pins stdlib
      # versions (JuliaSyntaxHighlighting 1.12.0, StyledStrings) that are
      # UNSATISFIABLE on the 1.10/1.11 matrix. Pkg.resolve() can't fix it — it
      # preserves those pins. So discard the stale manifest and re-create it fresh
      # for this Julia version, devving the unregistered estate path-deps.
      # (Pkg.develop on the KnotTheory weakdep only sets its source path; it does
      #  NOT promote it to a hard dep — Project.toml is unchanged.)
      - name: Install, build, test
        run: |
          rm -f Manifest.toml
          julia --project=. -e 'using Pkg; Pkg.develop([PackageSpec(path="../AcceleratorGate.jl"), PackageSpec(path="../KnotTheory.jl")]); Pkg.instantiate(); Pkg.build(); Pkg.test()'