Use caching more effectively

- Use `actions/setup-python` to manage caching for `pip`
- Stop trying to cache Docker images since it would be unreasonable
  anyway given the size of images being used
- Stop caching cookiecutter templates since downloading as part of a
  cache or downloading via `git` from GitHub are effectively the same
- Continue caching the Briefcase data directory

.github/workflows/app-build-verify.yml

@@ -69,37 +69,24 @@ jobs:
 
     - name: Package Name
       id: package
-      run: echo "name=$(basename '${{ inputs.repository }}')" >> ${GITHUB_OUTPUT}
+      run: echo "name=$(basename '${{ inputs.repository }}')" | tee -a ${GITHUB_OUTPUT}
 
-    - name: Determine Cache Directories
+    - name: Determine Cache Directory
       id: dirs
       run: |
-        echo "cookiecutters-data-dir=~/.cookiecutters" >> ${GITHUB_OUTPUT}
-
-        if [[ "${{ startsWith(inputs.runner-os, 'ubuntu') }}" == "true" ]]; then
-          echo "briefcase-data-dir=~/.cache/briefcase" >> ${GITHUB_OUTPUT}
-          echo "pip-cache-dir=~/.cache/pip" >> ${GITHUB_OUTPUT}
-
-        elif [[ "${{ startsWith(inputs.runner-os, 'macos') }}" == "true" ]]; then
-          echo "briefcase-data-dir=~/Library/Caches/org.beeware.briefcase" >> ${GITHUB_OUTPUT}
-          echo "pip-cache-dir=~/Library/Caches/pip" >> ${GITHUB_OUTPUT}
-          echo "docker-cache-dir=~/Library/Containers/com.docker.docker/Data/vms/0/" >> ${GITHUB_OUTPUT}
-
-        elif [[ "${{ startsWith(inputs.runner-os, 'windows') }}" == "true" ]]; then
-          echo "briefcase-data-dir=~/AppData/Local/BeeWare/briefcase/Cache" >> ${GITHUB_OUTPUT}
-          echo "pip-cache-dir=~/AppData/Local/pip/Cache" >> ${GITHUB_OUTPUT}
-          echo "docker-cache-dir=C:/ProgramData/DockerDesktop" >> ${GITHUB_OUTPUT}
-        fi
+        case "$(tr '[:upper:]' '[:lower:]' <<< '${{ inputs.runner-os }}')" in
+          ubuntu*  ) BRIEFCASE_DIR="~/.cache/briefcase" ;;
+          macos*   ) BRIEFCASE_DIR="~/Library/Caches/org.beeware.briefcase" ;;
+          windows* ) BRIEFCASE_DIR="~/AppData/Local/BeeWare/briefcase/Cache" ;;
+          *        ) echo "::error::Failed to determine the Briefcase data directory path" ;;
+        esac
+        echo "briefcase-data-dir=${BRIEFCASE_DIR}" | tee -a ${GITHUB_OUTPUT}
 
     - name: Cache Briefcase Tools
       uses: actions/cache@v3.3.2
       with:
-        key: briefcase-${{ runner.os }}-${{ inputs.repository }}-${{ inputs.framework }}-${{ inputs.target-platform }}-${{ inputs.target-format }}
-        path: |
-          ${{ steps.dirs.outputs.cookiecutters-data-dir }}
-          ${{ steps.dirs.outputs.briefcase-data-dir }}
-          ${{ steps.dirs.outputs.pip-cache-dir }}
-          ${{ steps.dirs.outputs.docker-cache-dir }}
+        key: briefcase-${{ inputs.runner-os }}-${{ inputs.repository }}-${{ inputs.framework }}-${{ inputs.target-platform }}-${{ inputs.target-format }}-
+        path: ${{ steps.dirs.outputs.briefcase-data-dir }}
 
     - name: Determine System python3 Version
       id: system-python
@@ -111,6 +98,10 @@ jobs:
       uses: actions/setup-python@v4.7.1
       with:
         python-version: ${{ inputs.python-version }}
+        cache: pip
+        cache-dependency-path: |
+          **/setup.cfg
+          **/pyproject.toml
 
     - name: Get Packages
       # Briefcase will build and package itself in a previous step in its CI

.github/workflows/app-create-verify.yml

@@ -59,16 +59,14 @@ jobs:
       id: package
       run: echo "name=$(basename '${{ inputs.repository }}')" >> ${GITHUB_OUTPUT}
 
-    - name: Cache Briefcase Tools
-      uses: actions/cache@v3.3.2
-      with:
-        key: briefcase-${{ runner.os }}-${{ inputs.framework }}
-        path: ~/.cookiecutters
-
     - name: Set up Python
       uses: actions/setup-python@v4.7.1
       with:
         python-version: ${{ inputs.python-version }}
+        cache: "pip"
+        cache-dependency-path: |
+          **/setup.cfg
+          **/pyproject.toml
 
     - name: Get Packages
       # Briefcase will build and package itself in a previous step in its CI

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
     name: Pre-commit checks
     uses: ./.github/workflows/pre-commit-run.yml
     with:
-      pre-commit-source: "pre-commit"
+      pre-commit-source: pre-commit
 
   test-docs-build-verify:
     name: Test Verify Docs Build
@@ -118,7 +118,12 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4.7.1
       with:
-        python-version: "3.X"
+        python-version: 3.X
+        cache: pip
+        cache-dependency-path: |
+          **/setup.cfg
+          **/pyproject.toml
+          .pre-commit-config.yaml
 
     - name: Install Briefcase
       id: briefcase

.github/workflows/pre-commit-run.yml

@@ -44,6 +44,11 @@ jobs:
       uses: actions/setup-python@v4.7.1
       with:
         python-version: ${{ inputs.python-version }}
+        cache: pip
+        cache-dependency-path: |
+          **/setup.cfg
+          **/pyproject.toml
+          .pre-commit-config.yaml
 
     - name: Cache pre-commit
       uses: actions/cache@v3.3.2

.github/workflows/pre-commit-update.yml

@@ -73,6 +73,10 @@ jobs:
         uses: actions/setup-python@v4.7.1
         with:
           python-version: 3.X
+          cache: pip
+          cache-dependency-path: |
+            **/setup.cfg
+            **/pyproject.toml
 
       - name: Install pre-commit
         run: python -m pip install ${{ inputs.pre-commit-source || 'pre-commit' }}

.github/workflows/python-package-create.yml

@@ -61,7 +61,7 @@ jobs:
         uses: actions/setup-python@v4.7.1
         with:
           python-version: ${{ inputs.python-version }}
-          cache: "pip"
+          cache: pip
           cache-dependency-path: |
             **/setup.cfg
             **/pyproject.toml

.github/workflows/towncrier-run.yml

@@ -55,7 +55,7 @@ jobs:
       uses: actions/setup-python@v4.7.1
       with:
         python-version: ${{ inputs.python-version }}
-        cache: "pip"
+        cache: pip
         cache-dependency-path: |
           **/setup.cfg
           **/pyproject.toml