cache downloaded swiftpm artifacts

Author: ktoso

.github/workflows/pull_request.yml

@@ -36,14 +36,8 @@ jobs:
       - name: Install JDK
         run: "bash -xc 'JDK_VENDOR=${{ matrix.jdk_vendor }} ./docker/install_jdk.sh'"
         # TODO: not using setup-java since incompatible with the swiftlang/swift base image
-        #      - uses: actions/setup-java@v4
-        #        with:
-        #          distribution: 'zulu'
-        #          java-version: '22'
-        #          cache: 'gradle'
       - name: Install Nightly Swift
         run: "bash -xc './docker/install_untested_nightly_swift.sh'"
-      # Cache .m2/repository
       - name: Cache local Gradle repository
         uses: actions/cache@v4
         continue-on-error: true
@@ -53,6 +47,15 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-gradle-cache
             ${{ runner.os }}-gradle-
+      - name: Cache local SwiftPM repository
+        uses: actions/cache@v4
+        continue-on-error: true
+        with:
+          path: ~/.swiftpm/cache
+          key: ${{ runner.os }}-swiftpm-cache-${{ hashFiles('Package.swift') }}
+          restore-keys: |
+            ${{ runner.os }}-swiftpm-cache
+            ${{ runner.os }}-swiftpm-
       - name: Gradle build
         run: ./gradlew build --info --no-daemon
 
@@ -77,6 +80,15 @@ jobs:
         run: "bash -xc 'JDK_VENDOR=${{ matrix.jdk_vendor }} ./docker/install_jdk.sh'"
       - name: Install Nightly Swift
         run: "bash -xc './docker/install_untested_nightly_swift.sh'"
+      - name: Cache local SwiftPM repository
+        uses: actions/cache@v4
+        continue-on-error: true
+        with:
+          path: ~/.gradle/cache
+          key: ${{ runner.os }}-swiftpm-cache-${{ hashFiles('Package.swift') }}
+          restore-keys: |
+            ${{ runner.os }}-swiftpm-cache
+            ${{ runner.os }}-swiftpm-
       - name: Generate sources (make) (Temporary)
         # TODO: this should be triggered by the respective builds
         run: "make jextract-run"

docker/install_untested_nightly_swift.sh

@@ -31,8 +31,11 @@ UNTESTED_TOOLCHAIN_FILENAME=$(echo "$UNTESTED_TOOLCHAIN_URL" | awk '
                                            }
                                            {print FILENAME, basename(FILENAME)}')
 
+echo "Download toolchain: $UNTESTED_TOOLCHAIN_URL"
+
 cd /
-curl "$UNTESTED_TOOLCHAIN_URL" > "$UNTESTED_TOOLCHAIN_FILENAME"
+curl -s "$UNTESTED_TOOLCHAIN_URL" > "$UNTESTED_TOOLCHAIN_FILENAME"
 
+echo "Extract toolchain: $UNTESTED_TOOLCHAIN_FILENAME"
 tar xzf "$UNTESTED_TOOLCHAIN_FILENAME"
 swift -version