tests: cache sample files

Author: henryborchers

.github/workflows/tox_matrix.yml

@@ -44,14 +44,23 @@ jobs:
     steps:
 
       - uses: actions/checkout@v3
+      - name: Cache sample files
+        id: cache_samples
+        uses: actions/cache@v4
+        with:
+          path: "{{ github.workspace }}"
+          key: ${{ hashFiles('sample_images.tar.gz') }}
+      - name: download sample files
+        if: steps.cache_samples.outputs.cache-hit != 'true'
+        run: curl -L https://nexus.library.illinois.edu/repository/sample-data/images/sample_images.tar.gz -o "{{ github.workspace }}/sample_images.tar.gz"
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pip' # caching pip dependencies
       - name: "install Python dependencies"
         run: |
           pip install uv
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         id: cache
         with:
           path: "${{ matrix.conan_user_home }}/.conan2"
@@ -86,4 +95,4 @@ jobs:
         env:
           CONAN_COMPILER_LIBCXX: ${{ matrix.compiler_libcxx }}
           CONAN_USER_HOME: ${{ matrix.conan_user_home }}
-
+          SAMPLE_IMAGES_ARCHIVE: "{{ github.workspace }}/sample_images.tar.gz"

scripts/resources/windows/tox/Dockerfile

@@ -68,8 +68,8 @@ FROM base_builder AS sample_files_downloader
 ARG SAMPLE_IMAGES_URL
 ENV EXPECTED_SHA256="0461f57db3806ca47d9063151eec4bc0720c66a83153dda04e230f838b64f063"
 ENV downloadPath="C:/sampledata/"
-RUN if (-not (Test-Path -Path $downloadPath -PathType Container)) {`
-        New-Item -Path $downloadPath -ItemType Directory -Force`
+RUN if (-not (Test-Path -Path ${env:downloadPath} -PathType Container)) {`
+        New-Item -Path ${env:downloadPath} -ItemType Directory -Force`
     }; `
     Invoke-WebRequest -Uri ${env:SAMPLE_IMAGES_URL} -OutFile "${env:downloadPath}\sample_images.tar.gz"