GH-113858: GitHub Actions config: Only save ccache on pushes (GH-113859)

Author: encukou

.github/workflows/build.yml

@@ -142,6 +142,8 @@ jobs:
         run: echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
       - name: Configure ccache action
         uses: hendrikmuhs/[email protected]
+        with:
+          save: ${{ github.event_name == 'push' }}
       - name: Check Autoconf and aclocal versions
         run: |
           grep "Generated by GNU Autoconf 2.71" configure
@@ -284,6 +286,8 @@ jobs:
         echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
     - name: Configure ccache action
       uses: hendrikmuhs/[email protected]
+      with:
+        save: ${{ github.event_name == 'push' }}
     - name: Configure CPython
       run: ./configure --config-cache --with-pydebug --with-openssl=$OPENSSL_DIR
     - name: Build CPython
@@ -327,6 +331,8 @@ jobs:
         echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
     - name: Configure ccache action
       uses: hendrikmuhs/[email protected]
+      with:
+        save: ${{ github.event_name == 'push' }}
     - name: Setup directory envs for out-of-tree builds
       run: |
         echo "CPYTHON_RO_SRCDIR=$(realpath -m ${GITHUB_WORKSPACE}/../cpython-ro-srcdir)" >> $GITHUB_ENV
@@ -446,6 +452,8 @@ jobs:
         echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
     - name: Configure ccache action
       uses: hendrikmuhs/[email protected]
+      with:
+        save: ${{ github.event_name == 'push' }}
     - name: Configure CPython
       run: ./configure --config-cache --with-address-sanitizer --without-pymalloc
     - name: Build CPython

.github/workflows/reusable-ubuntu.yml

@@ -41,6 +41,8 @@ jobs:
         echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
     - name: Configure ccache action
       uses: hendrikmuhs/[email protected]
+      with:
+        save: ${{ github.event_name == 'push' }}
     - name: Setup directory envs for out-of-tree builds
       run: |
         echo "CPYTHON_RO_SRCDIR=$(realpath -m ${GITHUB_WORKSPACE}/../cpython-ro-srcdir)" >> $GITHUB_ENV