Try building cygport

If this works, I'll be able to check what a cygport build looks like,
and then use the results to work out which cygport commit actually
caused t5580 to start failing.

.github/workflows/ci.yml

@@ -10,64 +10,69 @@ jobs:
         shell: bash --noprofile --norc -e -o pipefail -o igncr {0}
     env:
       PATH: C:\cygwin\bin
+    strategy:
+      matrix:
+        cygport-ref:
+          - 0.36.1
+          - 19ad61efd6214e9430e31d5770d251aea4e2d815
+          - 9b231ea1cdacfa9324d66ce6af7f07332e865551
+          - 8b33f707c37f2673337b2509b96529896137cd51
+          - d31026b6ab1e7c0d4c2ae07ebe401d02806f8b4b
+          - 30e796755b065d2c3dbeac9418dace745b99cbfd
+          - c72a663e3c22783e5fba3d0f677a88782c7de917
+          - 78e5db7ec667d5c25d11370666c4a0fe63f715fe
+          - 0.36.2
+      fail-fast: false
     steps:
       - name: Install Cygwin Git and cygport
         uses: cygwin/cygwin-install-action@v2
         with:
-          packages: git cygport
-        timeout-minutes: 10
+          packages: >
+            git R aspell automake bison cmake cvs diffstat dos2unix
+            extra-cmake-modules flex flexdll fontforge gcc-g++ git
+            git-archive-all gnome-common gobject-introspection help2man
+            httpd-devel kf5-kdoctools libGL-devel libGeoIP-devel
+            libKF5XmlGui-devel libQt5Core-devel libQt5Svg-devel
+            libQtCore4-devel libQtGui4-devel libQtNetwork4-devel
+            libQtTest4-devel libQtXml4-devel libRmath libbz2-devel
+            libcairomm1.0-devel libcrypt-devel libgdk_pixbuf2.0-devel
+            libgirepository1.0-devel libglibmm2.4-devel libicu-devel
+            liblua-devel liblzma-devel libnotify-devel libpango1.0-devel
+            libpcre2-devel libqca-devel libqca-qt5-devel libtirpc-devel
+            libxfce4ui1-devel libxfconf0-devel lndir lua make mate-common
+            mercurial meson mingw64-i686-gcc-core mingw64-i686-qt5-base
+            mingw64-i686-qt5-tools mm-common monotone ninja ocaml ocaml-dune
+            ocaml-findlib patch perl perl-Module-Build php-PEAR python38-devel
+            python27-wheel python37-pip python37-setuptools python37-wheel
+            python38-pip python38-setuptools python38-wheel python38-pygments
+            python39-pip python39-setuptools python39-wheel robodoc ruby
+            ruby-rack subversion unzip xfce4-dev-tools xfce4-panel-devel
+        timeout-minutes: 30
       - name: Manually configure safe.directory
         run: git config --global --add safe.directory '*'
         timeout-minutes: 1
-      - name: Checkout
+      - name: Checkout cygport
         uses: actions/checkout@v3
         with:
-          set-safe-directory: false  # actions/checkout otherwise tries to use the wrong config file, per actions/checkout#767
-          fetch-depth: 0  # Need this to push to Cygwin Git mirror
+          repository: cygwin/cygport
+          path: cygport
+          ref: ${{ matrix.cygport-ref }}
+          submodules: true
         timeout-minutes: 1
-      - name: Load variables from the cygport file
+      - name: Build cygport
         run: |
-          eval "$(cygport git.cygport vars BUILD_REQUIRES PVR)"
-          printf 'BUILD_REQUIRES=%s\n' "$BUILD_REQUIRES" >>"$GITHUB_ENV"
-          printf 'PVR=%s\n' "$PVR" >>"$GITHUB_ENV"
-        timeout-minutes: 1
-      - name: Install Cygwin build requirements
-        uses: cygwin/cygwin-install-action@v2
-        with:
-          packages: ${{ env.BUILD_REQUIRES }}
-        timeout-minutes: 30
-      - name: Generate cygcheck output
-        if: always()
-        run: cygcheck -srv >/var/log/cygcheck.out
-        timeout-minutes: 5
-      - name: Store Cygwin logs
+          cd cygport
+          meson _build
+          ninja -C _build
+      - name: Tar up cygport build results
         if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: cygwin-logs
-          path: 'C:\cygwin\var\log\'
-        timeout-minutes: 5
-      - name: Cygport download
-        run: cygport git.cygport download
-        timeout-minutes: 5
-      - name: Cygport prep
-        run: cygport git.cygport prep
-        timeout-minutes: 1
-      - name: Cygport compile
-        run: cygport git.cygport compile
-        timeout-minutes: 30
-      - name: Cygport test
-        run: cygport git.cygport test
-        timeout-minutes: 300
-      - name: Tar up build results
-        if: always()
-        run: tar -caf git-build-results.txz git-*-*.*/
+        run: tar -caf cygport-build-results-${{ matrix.cygport-ref }}.txz --exclude-vcs cygport
         timeout-minutes: 10
-      - name: Store build results
+      - name: Store cygport build results
         if: always()
         uses: actions/upload-artifact@v3
         with:
-          name: build-results
-          path: git-build-results.txz
+          name: cygport-${{ matrix.cygport-ref }}
+          path: cygport-build-results-${{ matrix.cygport-ref }}.txz
           if-no-files-found: error
-        timeout-minutes: 5
+        timeout-minutes: 10