CI: add macOS build with tests (#2661)

.github/workflows/macos.yml

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+---
+name: macOS
+# Build and run tests on macOS
+
+on:
+  push:
+    branches:
+      - main
+      - releasebranch_*
+  pull_request:
+    branches:
+      - main
+      - releasebranch_*
+env:
+  CACHE_NUMBER: 0
+jobs:
+  macos_build:
+    name: macOS build
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Mambaforge
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          channels: conda-forge
+          miniforge-variant: Mambaforge
+          miniforge-version: latest
+          activate-environment: grass-env
+          use-mamba: true
+      - name: Get cache date
+        id: get-date
+        run: echo "today=$(/bin/date -u '+%Y%m%d')" >> $GITHUB_OUTPUT
+        shell: bash
+      - name: Cache conda environment
+        uses: actions/cache@v3
+        with:
+          path: ~/miniconda3/envs/grass-env
+          key: conda-macos-x86_64-${{steps.get-date.outputs.today
+            }}-${{hashFiles('.github/workflows/macos_dependencies.txt') }}-${{
+            env.CACHE_NUMBER}}
+        id: cache
+      - name: Update environment
+        run: mamba env update -n grass-env -f .github/workflows/macos_dependencies.txt
+        if: steps.cache.outputs.cache-hit != 'true'
+      - name: Conda info
+        shell: bash -el {0}
+        run: |
+          conda info
+          conda list
+          conda config --show-sources
+          conda config --show
+          printenv | sort
+          $CC --version
+      - name: Create installation directory
+        run: mkdir $HOME/install
+      - name: Build and install
+        shell: bash -l {0}
+        run: source ./.github/workflows/macos_install.sh $HOME/install
+      - name: Add the bin directory to PATH
+        run: echo "$HOME/install/bin" >> $GITHUB_PATH
+      - name: Check installed version
+        shell: bash -l {0}
+        run: source ./.github/workflows/print_versions.sh
+      - name: Run tests
+        shell: bash -el {0}
+        run: >
+          grass --tmp-location XY --exec \
+              g.download.location url=https://grass.osgeo.org/sampledata/north_carolina/nc_spm_full_v2alpha2.tar.gz path=$HOME
+          grass --tmp-location XY --exec \
+              python3 -m grass.gunittest.main \
+              --grassdata $HOME --location nc_spm_full_v2alpha2 --location-type nc \
+              --min-success 100 --config .github/workflows/macos_gunittest.cfg
+      - name: Make HTML test report available
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: testreport-macOS
+          path: testreport
+          retention-days: 3
+...

.github/workflows/macos_dependencies.txt

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+clang_osx-64
+clangxx_osx-64
+setuptools
+python
+python.app
+numpy
+gdal
+freetype
+cairo
+matplotlib
+pandoc
+pillow
+six
+wxpython
+sqlite
+jpeg
+libpng
+libtiff
+pkg-config
+libiconv
+fftw
+lapack
+blas
+giflib
+proj
+geos
+krb5
+gettext
+lastools
+ghostscript
+zstd
+pdal
+ply
+postgresql
+postgis
+cmake
+llvm-openmp

.github/workflows/macos_gunittest.cfg

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+[gunittest]
+
+# Files (or wildcard patterns) to exclude from testing separated by newline or
+# space. This would be ideally empty or it would include just special cases,
+# but it includes mainly tests which can (and should) be fixed.
+exclude =
+    gui/wxpython/core/testsuite/toolboxes.sh
+    lib/init/testsuite/test_grass_tmp_mapset.py
+    python/grass/gunittest/testsuite/test_assertions_rast3d.py
+    python/grass/gunittest/testsuite/test_assertions_vect.py
+    python/grass/gunittest/testsuite/test_gmodules.py
+    python/grass/gunittest/testsuite/test_gunitest_doctests.py
+    python/grass/pygrass/raster/testsuite/test_pygrass_raster_doctests.py
+    python/grass/pygrass/rpc/testsuite/test_pygrass_rpc_doctests.py
+    python/grass/script/testsuite/test_script_doctests.py
+    python/grass/temporal/testsuite/unittests_temporal_raster_algebra_equal_ts.py
+    python/grass/temporal/testsuite/unittests_temporal_raster_conditionals_complement_else.py
+    raster/r.contour/testsuite/testrc.py
+    raster/r.in.gdal/testsuite/test_r_in_gdal.py
+    raster/r.in.lidar/testsuite/test_base_resolution.sh
+    raster/r.in.lidar/testsuite/test_base_resolution.sh
+    raster/r.in.pdal/testsuite/test_r_in_pdal_binning.py
+    raster/r.in.pdal/testsuite/test_r_in_pdal_selection.py
+    raster/r.terraflow/testsuite/test_r_terraflow.py
+    raster/r.sun/testsuite/test_rsun.py
+    scripts/g.extension/testsuite/test_addons_download.py
+    scripts/g.search.modules/testsuite/test_g_search_modules.py
+    temporal/t.connect/testsuite/test_distr_tgis_db_raster3d.py
+    temporal/t.connect/testsuite/test_distr_tgis_db_raster.py
+    temporal/t.connect/testsuite/test_distr_tgis_db_vector.py
+    temporal/t.info/testsuite/test.t.info.sh
+    temporal/t.rast.aggregate/testsuite/test_aggregation_relative.py
+    temporal/t.rast.series/testsuite/test_series.py
+    vector/v.db.select/testsuite/test_v_db_select.py
+    vector/v.in.lidar/testsuite/decimation_test.py
+    vector/v.in.lidar/testsuite/mask_test.py
+    vector/v.in.lidar/testsuite/test_v_in_lidar_basic.py
+    vector/v.in.lidar/testsuite/test_v_in_lidar_filter.py
+    vector/v.in.pdal/testsuite/test_v_in_pdal_basic.py
+    vector/v.in.pdal/testsuite/test_v_in_pdal_filter.py
+    vector/v.out.lidar/testsuite/test_v_out_lidar.py
+    vector/v.what/testsuite/test_vwhat_layers.py
+    vector/v.what/testsuite/test_vwhat_ncspm.py
+
+# Maximum time for execution of one test file (not a test function)
+# after which test is terminated (which may not terminate child processes
+# from that test).
+# Using 5 minutes as maximum (average test time should be much shorter,
+# couple seconds per file, median should be around one second).
+timeout = 300

.github/workflows/macos_install.sh

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+#!/bin/sh
+
+set -e
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 PREFIX"
+    exit 1
+fi
+
+# recommended in https://gitter.im/conda-forge/conda-forge.github.io?at=5c40da7f95e17b45256960ce
+find ${CONDA_PREFIX}/lib -name '*.la' -delete
+
+CONDA_ARCH=$(uname -m)
+INSTALL_PREFIX=$1
+
+CONFIGURE_FLAGS="\
+  --prefix=${INSTALL_PREFIX} \
+  --with-opengl=aqua \
+  --with-openmp \
+  --without-x \
+  --with-freetype \
+  --with-freetype-includes=${CONDA_PREFIX}/include/freetype2 \
+  --with-freetype-libs=${CONDA_PREFIX}/lib \
+  --with-gdal=${CONDA_PREFIX}/bin/gdal-config \
+  --with-proj-includes=${CONDA_PREFIX}/include \
+  --with-proj-libs=${CONDA_PREFIX}/lib \
+  --with-proj-share=${CONDA_PREFIX}/share/proj \
+  --with-geos=${CONDA_PREFIX}/bin/geos-config \
+  --with-libpng=${CONDA_PREFIX}/bin/libpng-config \
+  --with-tiff-includes=${CONDA_PREFIX}/include \
+  --with-tiff-libs=${CONDA_PREFIX}/lib \
+  --with-postgres=yes \
+  --with-postgres-includes=${CONDA_PREFIX}/include \
+  --with-postgres-libs=${CONDA_PREFIX}/lib \
+  --without-mysql \
+  --with-sqlite \
+  --with-sqlite-libs=${CONDA_PREFIX}/lib \
+  --with-sqlite-includes=${CONDA_PREFIX}/include \
+  --with-fftw-includes=${CONDA_PREFIX}/include \
+  --with-fftw-libs=${CONDA_PREFIX}/lib \
+  --with-cxx \
+  --with-cairo \
+  --with-cairo-includes=${CONDA_PREFIX}/include/cairo \
+  --with-cairo-libs=${CONDA_PREFIX}/lib \
+  --with-cairo-ldflags="-lcairo" \
+  --with-zstd \
+  --with-zstd-libs=${CONDA_PREFIX}/lib \
+  --with-zstd-includes=${CONDA_PREFIX}/include \
+  --with-bzlib \
+  --with-bzlib-libs=${CONDA_PREFIX}/lib \
+  --with-bzlib-includes=${CONDA_PREFIX}/include \
+  --with-netcdf=${CONDA_PREFIX}/bin/nc-config \
+  --with-blas \
+  --with-blas-libs=${CONDA_PREFIX}/lib \
+  --with-blas-includes=${CONDA_PREFIX}/include \
+  --with-lapack
+  --with-lapack-includes=${CONDA_PREFIX}/include \
+  --with-lapack-libs=${CONDA_PREFIX}/lib \
+  --with-netcdf=${CONDA_PREFIX}/bin/nc-config \
+  --with-nls \
+  --with-libs=${CONDA_PREFIX}/lib \
+  --with-includes=${CONDA_PREFIX}/include \
+  --with-pdal=${CONDA_PREFIX}/bin/pdal-config \
+  --with-readline \
+  --with-readline-includes=${CONDA_PREFIX}/include/readline \
+  --with-readline-libs=${CONDA_PREFIX}/lib
+"
+
+export CFLAGS="-O2 -pipe -arch ${CONDA_ARCH} -DGL_SILENCE_DEPRECATION -Wall"
+export CXXFLAGS="-O2 -pipe -stdlib=libc++ -arch ${CONDA_ARCH} -Wall"
+
+./configure $CONFIGURE_FLAGS
+
+make -j$(sysctl -n hw.ncpu) CFLAGS="$CFLAGS -Werror" CXXFLAGS="$CXXFLAGS -Werror"
+
+make install