shithub: rgbds

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Cache built deps in Windows CI runs

--- a/.github/workflows/testing.yml

+++ b/.github/workflows/testing.yml

@@ -71,7 +71,7 @@

     steps:

       - uses: actions/checkout@v2

       - name: Get zlib, libpng and bison

-        run: | # TODO: use an array

+        run: | # TODO: use an array; remember to update the versions being downloaded, *and* the paths being extracted! (`Move-Item`)

           $wc = New-Object System.Net.WebClient

           $wc.DownloadFile('https://www.zlib.net/zlib1212.zip', 'zlib.zip')

           $hash = (Get-FileHash "zlib.zip" -Algorithm SHA256).Hash

@@ -95,15 +95,28 @@

           Expand-Archive -DestinationPath install_dir "winflexbison.zip"

           Move-Item zlib-1.2.12 zlib

           Move-Item lpng1637 libpng

+      - uses: actions/cache@v3

+        id: cache

+        with:

+          path: |

+            zbuild

+            pngbuild

+          key: ${{ matrix.arch }}-${{ hashFiles('zlib/**', 'libpng/**') }}

       - name: Build zlib

         run: | # BUILD_SHARED_LIBS causes the output DLL to be correctly called `zlib1.dll`

           cmake -S zlib -B zbuild -A ${{ matrix.platform }} -DCMAKE_INSTALL_PREFIX=install_dir -DBUILD_SHARED_LIBS=ON

           cmake --build zbuild --config Release -j

+        if: steps.cache.outputs.cache-hit != 'true'

+      - name: Install zlib

+        run: |

           cmake --install zbuild

       - name: Build libpng

         run: |

           cmake -S libpng -B pngbuild -A ${{ matrix.platform }} -DCMAKE_INSTALL_PREFIX=install_dir -DPNG_SHARED=ON -DPNG_STATIC=ON -DPNG_TESTS=OFF

           cmake --build pngbuild --config Release -j

+        if: steps.cache.outputs.cache-hit != 'true'

+      - name: Install libpng

+        run: |

           cmake --install pngbuild

       - name: Build Windows binaries

         run: |