switch to use preview aarch64 linux runners from github (#490)

* switch to use preview aarch64 linux runners from github,
* removing qemu step and unused cache step
* update cibuildwheel to 2.22
* adding explicit macos-13 to avoid x86_64 cross compilation on arm64 runners for macos
* adding some speculative fixes and logging to ensure macos issue is resolved for now

.github/workflows/publish-to-test-and-live-pypi.yml

@@ -54,13 +54,13 @@ jobs:
       matrix:
         include:
           - config: {"name": "Linux", "os": "ubuntu-latest", "arch": "x86_64"}
-          - config: {"name": "Linux", "os": "ubuntu-latest", "arch": "aarch64"}
-          - config: {"name": "macOS", "os": "macos-14", "arch": "x86_64"}
+          - config: {"name": "Linux", "os": "ubuntu-22.04-arm", "arch": "aarch64"}
+          - config: {"name": "macOS", "os": "macos-13", "arch": "x86_64"}
           - config: {"name": "macOS", "os": "macos-14", "arch": "arm64"}
           - config: {"name": "Windows", "os": "windows-latest", "arch": "AMD64"}  
     name: Build SpiceyPy 🌶️ 🥧 Python 🐍 wheels for ${{ matrix.config.os }} ${{ matrix.config.arch }}
     env: 
-      CSPICE_CACHE: 1
+      CSPICE_CACHE: 2
       CIBW_ARCHS: ${{ matrix.config.arch }}
     runs-on: ${{ matrix.config.os }}
     steps:
@@ -70,26 +70,20 @@ jobs:
         if: runner.os == 'Windows'
         uses: ilammy/msvc-dev-cmd@v1.13.0
       - name: set additional environment variables for macOS arm
-        if: runner.name == 'macOS' && matrix.config.arch == 'arm64'
+        if: runner.os == 'macOS' && matrix.config.arch == 'arm64'
         run: |
           echo "CIBW_ARCHS_MACOS=arm64" >> $GITHUB_ENV
           echo "ARCHFLAGS='-arch arm64'" >> $GITHUB_ENV
       - name: set additional environment variables for macOS x86
-        if: runner.name == 'macOS' && matrix.config.arch == 'x86_64'
+        if: runner.os == 'macOS' && matrix.config.arch == 'x86_64'
         run: |
           echo "CIBW_ARCHS_MACOS=x86_64" >> $GITHUB_ENV
           echo "ARCHFLAGS='-arch x86_64'" >> $GITHUB_ENV
-      - name: Set up QEMU for arm64 builds
-        if: matrix.config.arch == 'aarch64'
-        uses: docker/setup-qemu-action@v3
-        with:
-          platforms: all
-      - name: Cache libcspice.so for aarch64 builds because they take an hour to build with qemu
-        if: matrix.config.arch == 'aarch64'
-        uses: actions/cache@v4
-        with:
-          path: ./src/spiceypy/utils/libcspice.so
-          key: ${{ env.CSPICE_CACHE }}-${{ matrix.config.os }}-${{ matrix.config.arch }}-${{ hashFiles('get_spice.py') }}-${{ hashFiles('setup.cfg') }}
+      - name: set additional environment variables for linux aarch64
+        if: runner.os == 'Linux' && matrix.config.arch == 'aarch64'
+        run: |
+          echo "CIBW_ARCHS_LINUX=aarch64" >> $GITHUB_ENV
+          echo "ARCHFLAGS='-arch aarch64'" >> $GITHUB_ENV
       - name: Set up Python 🐍 3.13
         uses: actions/setup-python@v5
         with:
@@ -100,28 +94,13 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install -r ci-requirements.txt
-          python -m pip install cibuildwheel==2.21.3
-      - name: See if libcspice.so is available from cache
-        if: matrix.config.arch == 'aarch64'
-        run: |
-          pwd
-          ls src/spiceypy/utils -lahtr
+          python -m pip install cibuildwheel==2.22.0
       - name: Build wheels for SpiceyPy 🌶️ 🥧
         timeout-minutes: 120
         run: |
           env | grep CIBW
           env | grep ARCH
           python -m cibuildwheel --output-dir wheelhouse
-      - name: Extract libcspice.so for aarch64 builds
-        if: matrix.config.arch == 'aarch64'
-        run: |
-          pwd
-          ls -lahtr 
-          ls src/ -lahtr
-          ls src/spiceypy/ -lahtr
-          ls src/spiceypy/utils -lahtr
-          ls wheelhouse/*
-          unzip -o wheelhouse/spiceypy-\*.whl 'spiceypy/utils/libcspice.so' -d src/
       - name: Check dists
         run: |
           twine check wheelhouse/*

get_spice.py

@@ -103,8 +103,8 @@
 # macos builds can occur on x86 or arm64 machines.
 # but we need to support cross compilation either way 
 # so be a little pedantic here
-requested_arch_x86 = os.environ.get("ARCHFLAGS", "") == "-arch x86_64"
-requested_arch_arm = os.environ.get("ARCHFLAGS", "") == "-arch arm64"
+requested_arch_x86 = os.environ.get("ARCHFLAGS", "").strip("'\"") == "-arch x86_64"
+requested_arch_arm = os.environ.get("ARCHFLAGS", "").strip("'\"") == "-arch arm64"
 # if both are false and on macos do something
 if is_macos and (not requested_arch_arm and not requested_arch_x86):
     # default to building arm on macos
@@ -119,6 +119,14 @@
 spice_version = "N0067"
 spice_num_v = "67"
 
+if is_macos:
+    print(f"On macOS {host_OS}, host arch {host_arch}")
+    print(f"requested_arch_x86: {requested_arch_x86}")
+    print(f"requested_arch_arm: {requested_arch_arm}")
+    print(f"build_macox_x86: {build_macos_x86}")
+    print(f"build_macos_arm: {build_macos_arm}")
+    print(f"is_macos_arm: {is_macos_arm}")
+
 
 class GetCSPICE(object):
     """