Log stderr of gradle task on configuration issues

README.md

@@ -113,7 +113,7 @@ The following example showcases a gradle module in the root, without a module na
 | `use-gradlew`    | Defines if `./gradlew` or `gradle` cli will be used to retrieve the dependencies. Defaults to 'true' e.g. `./gradlew`.|
 | `gradle-project-path`    | Defines the path to the gradle project. Defaults to ''. |
 | `gradle-build-module`    | Defines the module to retrieve the dependencies for. This is often `:app`. Defaults to ''.  |
-| `gradle-build-configuration`    | The configuration for which dependencies are resolved. Defaults to `debugCompileClasspath`.  |
+| `gradle-build-configuration`    | The configuration for which dependencies are resolved. Defaults to `debugCompileClasspath`. Plain java projects usually use `compileClasspath`. |
 | `gradle-dependency-path`    | Defines the path to the gradle dependency file, relative to the `gradle-project-path`. If not provided, automatically resolved via gradle and the `module` config. |
 
 ## Sample 🖥️

__tests__/process.test.ts

@@ -15,6 +15,19 @@ describe('processDependencyList', () => {
     expect(dependencies).toEqual(EXPECTED_GRADLE_DEPENDENCY_OUTPUT)
   })
 
+  test('run in gradle-example with invalid configuration', async () => {
+    try {
+      await processDependencyList(
+        true,
+        'gradle-example',
+        ':app',
+        'non-existing'
+      )
+    } catch (error: any) {
+      expect(error.message).toEqual("Failed to execute './gradlew :app:dependencies'")
+    }
+  })
+
   test('run in root', async () => {
     const dependencies = await processDependencyList(
       false,

action.yml

@@ -23,7 +23,7 @@ inputs:
     default: ''
   gradle-build-configuration:
     required: true
-    description: 'The configuration used to retrieve all dependencies from.'
+    description: 'The configuration used to retrieve all dependencies from. Defaults to `debugCompileClasspath` (Android). Java projects usually use `compileClasspath`'
     default: 'debugCompileClasspath'
   gradle-dependency-path:
     required: false

src/gradle.ts

@@ -18,7 +18,8 @@ async function fetchGradleVersion(useGradlew: boolean, gradleProjectPath: string
   const command = retrieveGradleCLI(useGradlew)
   const versionOutput = await exec.getExecOutput(command, ['--version'], {
     cwd: gradleProjectPath,
-    silent: !core.isDebug()
+    silent: !core.isDebug(),
+    ignoreReturnCode: true
   })
   if (versionOutput.exitCode !== 0) {
     core.error(versionOutput.stderr)
@@ -55,7 +56,8 @@ export async function retrieveGradleDependencies(
     [`${module}:dependencies`, '--configuration', gradleBuildConfiguration],
     {
       cwd: gradleProjectPath,
-      silent: !core.isDebug()
+      silent: !core.isDebug(),
+      ignoreReturnCode: true
     }
   )
   if (dependencyList.exitCode !== 0) {
@@ -113,7 +115,8 @@ async function retrieveGradleProperty(
 
   const propertyOutput = await exec.getExecOutput(command, [`${module}:properties`, '-q', '--property', property], {
     cwd: gradleProjectPath,
-    silent: !core.isDebug()
+    silent: !core.isDebug(),
+    ignoreReturnCode: true
   })
   if (propertyOutput.exitCode !== 0) {
     core.error(propertyOutput.stderr)