Add SBT in cache managers.

.github/workflows/e2e-cache.yml

@@ -111,3 +111,99 @@ jobs:
             exit 1
           fi
           ls ~/.m2/repository
+  sbt-save:
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
+        working-directory: __tests__/cache/sbt
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Run setup-java with the cache for sbt
+        uses: ./
+        id: setup-java
+        with:
+          distribution: 'adopt'
+          java-version: '11'
+          cache: sbt
+      - name: Create files to cache
+        run: sbt update
+
+      - name: Check files to cache on macos-latest
+        if: matrix.os == 'macos-latest'
+        run: |
+          if [ ! -d ~/Library/Caches/Coursier ]; then
+            echo "::error::The ~/Library/Caches/Coursier directory does not exist unexpectedly"
+            exit 1
+          fi
+
+      - name: Check files to cache on windows-latest
+        if: matrix.os == 'windows-latest'
+        run: |
+          if [ ! -d ~/AppData/Local/Coursier/Cache ]; then
+            echo "::error::The ~/AppData/Local/Coursier/Cache directory does not exist unexpectedly"
+            exit 1
+          fi
+
+
+      - name: Check files to cache on ubuntu-latest
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          if [ ! -d ~/.cache/coursier ]; then
+            echo "::error::The ~/.cache/coursier directory does not exist unexpectedly"
+            exit 1
+          fi
+
+  sbt-restore:
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
+        working-directory: __tests__/cache/sbt
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    needs: sbt-save
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Run setup-java with the cache for sbt
+        uses: ./
+        id: setup-java
+        with:
+          distribution: 'adopt'
+          java-version: '11'
+          cache: sbt
+
+      - name: Confirm that ~/Library/Caches/Coursier directory has been made
+        if: matrix.os == 'macos-latest'
+        run: |
+          if [ ! -d ~/Library/Caches/Coursier ]; then
+            echo "::error::The ~/Library/Caches/Coursier directory does not exist unexpectedly"
+            exit 1
+          fi
+          ls ~/Library/Caches/Coursier
+
+      - name: Confirm that ~/AppData/Local/Coursier/Cache directory has been made
+        if: matrix.os == 'windows-latest'
+        run: |
+          if [ ! -d ~/AppData/Local/Coursier/Cache ]; then
+            echo "::error::The ~/AppData/Local/Coursier/Cache directory does not exist unexpectedly"
+            exit 1
+          fi
+          ls ~/AppData/Local/Coursier/Cache
+
+      - name: Confirm that ~/.cache/coursier directory has been made
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          if [ ! -d ~/.cache/coursier ]; then
+            echo "::error::The ~/.cache/coursier directory does not exist unexpectedly"
+            exit 1
+          fi
+          ls ~/.cache/coursier

README.md

@@ -69,6 +69,7 @@ Currently, the following distributions are supported:
 The action has a built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/cache) under hood for caching dependencies but requires less configuration settings. Supported package managers are gradle and maven. The format of the used cache key is `setup-java-${{ platform }}-${{ packageManager }}-${{ fileHash }}`, where the hash is based on the following files:
 - gradle: `**/*.gradle*`, `**/gradle-wrapper.properties`
 - maven: `**/pom.xml`
+- sbt:  `**/build.sbt`
 
 The workflow output `cache-hit` is set to indicate if an exact match was found for the key [as actions/cache does](https://github.com/actions/cache/tree/main#outputs).
 
@@ -99,6 +100,19 @@ steps:
   run: mvn -B package --file pom.xml
 ```
 
+#### Caching sbt dependencies
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-java@v3
+  with:
+    distribution: 'temurin'
+    java-version: '11'
+    cache: 'sbt'
+- name: Build with SBT
+  run: sbt package
+```
+
 ### Check latest
 In the basic examples above, the `check-latest` flag defaults to `false`. When set to `false`, the action tries to first resolve a version of Java from the local tool cache on the runner. If unable to find a specific version in the cache, the action will download a version of Java. Use the default or set `check-latest` to `false` if you prefer a faster more consistent setup experience that prioritizes trying to use the cached versions at the expense of newer versions sometimes being available for download.
 

__tests__/cache.test.ts

@@ -118,6 +118,23 @@ describe('dependency cache', () => {
         expect(spyInfo).toBeCalledWith('gradle cache is not found');
       });
     });
+    describe('for sbt', () => {
+      it('throws error if no build.sbt found', async () => {
+        await expect(restore('sbt')).rejects.toThrowError(
+          `No file in ${projectRoot(
+            workspace
+          )} matched to [**/*.sbt,**/project/build.properties,**/project/**.{scala,sbt}], make sure you have checked out the target repository`
+        );
+      });
+      it('downloads cache', async () => {
+        createFile(join(workspace, 'build.sbt'));
+
+        await restore('sbt');
+        expect(spyCacheRestore).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith('sbt cache is not found');
+      });
+    });
   });
   describe('save', () => {
     let spyCacheSave: jest.SpyInstance<
@@ -194,6 +211,30 @@ describe('dependency cache', () => {
         expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
       });
     });
+    describe('for sbt', () => {
+      it('uploads cache even if no build.sbt found', async () => {
+        createStateForMissingBuildFile();
+        await save('sbt');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+      });
+      it('does not upload cache if no restore run before', async () => {
+        createFile(join(workspace, 'build.sbt'));
+
+        await save('sbt');
+        expect(spyCacheSave).not.toBeCalled();
+        expect(spyWarning).toBeCalledWith('Error retrieving key from state.');
+      });
+      it('uploads cache', async () => {
+        createFile(join(workspace, 'build.sbt'));
+        createStateForSuccessfulRestore();
+
+        await save('sbt');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+    });
   });
 });
 

__tests__/cache/sbt/.gitignore

@@ -0,0 +1 @@
+target/

__tests__/cache/sbt/build.sbt

@@ -0,0 +1,3 @@
+ThisBuild / scalaVersion := "2.12.15"
+
+libraryDependencies += "org.scala-lang.modules" %% "scala-parser-combinators" % "1.1.2"

__tests__/cache/sbt/project/build.properties

@@ -0,0 +1 @@
+sbt.version=1.6.2

dist/cleanup/index.js

@@ -61886,8 +61886,24 @@ const supportedPackageManager = [
         path: [path_1.join(os_1.default.homedir(), '.gradle', 'caches'), path_1.join(os_1.default.homedir(), '.gradle', 'wrapper')],
         // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---gradle
         pattern: ['**/*.gradle*', '**/gradle-wrapper.properties']
+    },
+    {
+        id: 'sbt',
+        path: [
+            path_1.join(os_1.default.homedir(), '.ivy2', 'cache'),
+            path_1.join(os_1.default.homedir(), '.sbt'),
+            getCoursierCachePath()
+        ],
+        pattern: ['**/*.sbt', '**/project/build.properties', '**/project/**.{scala,sbt}']
     }
 ];
+function getCoursierCachePath() {
+    if (os_1.default.type() === 'Linux')
+        return path_1.join(os_1.default.homedir(), '.cache', 'coursier');
+    if (os_1.default.type() === 'Darwin')
+        return path_1.join(os_1.default.homedir(), 'Library', 'Caches', 'Coursier');
+    return path_1.join(os_1.default.homedir(), 'AppData', 'Local', 'Coursier', 'Cache');
+}
 function findPackageManager(id) {
     const packageManager = supportedPackageManager.find(packageManager => packageManager.id === id);
     if (packageManager === undefined) {

dist/setup/index.js

@@ -18623,8 +18623,24 @@ const supportedPackageManager = [
         path: [path_1.join(os_1.default.homedir(), '.gradle', 'caches'), path_1.join(os_1.default.homedir(), '.gradle', 'wrapper')],
         // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---gradle
         pattern: ['**/*.gradle*', '**/gradle-wrapper.properties']
+    },
+    {
+        id: 'sbt',
+        path: [
+            path_1.join(os_1.default.homedir(), '.ivy2', 'cache'),
+            path_1.join(os_1.default.homedir(), '.sbt'),
+            getCoursierCachePath()
+        ],
+        pattern: ['**/*.sbt', '**/project/build.properties', '**/project/**.{scala,sbt}']
     }
 ];
+function getCoursierCachePath() {
+    if (os_1.default.type() === 'Linux')
+        return path_1.join(os_1.default.homedir(), '.cache', 'coursier');
+    if (os_1.default.type() === 'Darwin')
+        return path_1.join(os_1.default.homedir(), 'Library', 'Caches', 'Coursier');
+    return path_1.join(os_1.default.homedir(), 'AppData', 'Local', 'Coursier', 'Cache');
+}
 function findPackageManager(id) {
     const packageManager = supportedPackageManager.find(packageManager => packageManager.id === id);
     if (packageManager === undefined) {

src/cache.ts

@@ -13,7 +13,7 @@ const CACHE_MATCHED_KEY = 'cache-matched-key';
 const CACHE_KEY_PREFIX = 'setup-java';
 
 interface PackageManager {
-  id: 'maven' | 'gradle';
+  id: 'maven' | 'gradle' | 'sbt';
   /**
    * Paths of the file that specify the files to cache.
    */
@@ -32,9 +32,24 @@ const supportedPackageManager: PackageManager[] = [
     path: [join(os.homedir(), '.gradle', 'caches'), join(os.homedir(), '.gradle', 'wrapper')],
     // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---gradle
     pattern: ['**/*.gradle*', '**/gradle-wrapper.properties']
+  },
+  {
+    id: 'sbt',
+    path: [
+      join(os.homedir(), '.ivy2', 'cache'),
+      join(os.homedir(), '.sbt'),
+      getCoursierCachePath()
+    ],
+    pattern: ['**/*.sbt', '**/project/build.properties', '**/project/**.{scala,sbt}']
   }
 ];
 
+function getCoursierCachePath(): string {
+  if (os.type() === 'Linux') return join(os.homedir(), '.cache', 'coursier');
+  if (os.type() === 'Darwin') return join(os.homedir(), 'Library', 'Caches', 'Coursier');
+  return join(os.homedir(), 'AppData', 'Local', 'Coursier', 'Cache');
+}
+
 function findPackageManager(id: string): PackageManager {
   const packageManager = supportedPackageManager.find(packageManager => packageManager.id === id);
   if (packageManager === undefined) {