Add setting to throw exception in non-interactive mode if some params are missing

Processor.php

@@ -104,7 +104,7 @@ private function processParams(array $config, array $expectedParams, array $actu
         // Add the params coming from the environment values
         $actualParams = array_replace($actualParams, $this->getEnvValues($envMap));
 
-        return $this->getParams($expectedParams, $actualParams);
+        return $this->getParams($config, $expectedParams, $actualParams);
     }
 
     private function getEnvValues(array $envMap)
@@ -137,10 +137,14 @@ private function processRenamedValues(array $renameMap, array $actualParams)
         return $actualParams;
     }
 
-    private function getParams(array $expectedParams, array $actualParams)
+    private function getParams(array $config, array $expectedParams, array $actualParams)
     {
-        // Simply use the expectedParams value as default for the missing params.
         if (!$this->io->isInteractive()) {
+            if (!empty($config['exception-if-missing']) && $missingParams = array_diff_key($expectedParams, $actualParams)) {
+                // Throw exception in non-interactive mode if some params are missing
+                throw new \RuntimeException(sprintf("Some parameters are missing: %s. Please fill them.", implode(", ", array_keys($missingParams))));
+            }
+            // Simply use the expectedParams value as default for the missing params
             return array_replace($expectedParams, $actualParams);
         }
 

README.md

@@ -66,6 +66,21 @@ will be used for missing parameters.
 your parameters.yml file so handle with care. If you want to give format
 and comments to your parameter's file you should do it on your dist version.
 
+### Throwing exception if some parameters are missing in non-interactive mode
+
+You can also force the script handler to throw an exception when some parameters
+are missing in non-interactive mode by using `exception-if-missing` param in the configuration:
+
+```json
+{
+    "extra": {
+        "incenteev-parameters": {
+            "exception-if-missing": true
+        }
+    }
+}
+```
+
 ### Keeping outdated parameters
 
 Warning: This script removes outdated params from ``parameters.yml`` which are not in ``parameters.yml.dist``

Tests/ProcessorTest.php

@@ -115,7 +115,9 @@ public function testParameterHandling($testCaseName)
 
         $this->processor->processFile($testCase['config']);
 
-        $this->assertFileEquals($dataDir.'/expected.yml', $workingDir.'/'.$testCase['config']['file'], $testCase['title']);
+        if (file_exists($expected = $dataDir.'/expected.yml')) {
+            $this->assertFileEquals($expected, $workingDir.'/'.$testCase['config']['file'], $testCase['title']);
+        }
     }
 
     private function initializeTestCase(array $testCase, $dataDir, $workingDir)
@@ -147,6 +149,11 @@ private function setInteractionExpectations(array $testCase)
         $this->io->isInteractive()->willReturn($testCase['interactive']);
 
         if (!$testCase['interactive']) {
+            if (!empty($testCase['config']['exception-if-missing']) && !empty($testCase['missing_params'])) {
+                    $this->setExpectedException(
+                        'RuntimeException',
+                        "Some parameters are missing: ".implode(", ", $testCase['missing_params']).". Please fill them.");
+            }
             return;
         }
 

Tests/fixtures/testcases/exception_if_missing/dist.yml

@@ -0,0 +1,4 @@
+parameters:
+    foo: bar
+    another: test
+    boolean: true

Tests/fixtures/testcases/exception_if_missing/existing.yml

@@ -0,0 +1,3 @@
+# This file is auto-generated during the composer install
+parameters:
+    foo: existing_foo

Tests/fixtures/testcases/exception_if_missing/setup.yml

@@ -0,0 +1,6 @@
+title: Missing keys involves exception thrown in non-interaction mode
+
+config:
+    exception-if-missing: true
+
+missing_params: ['another', 'boolean']

Tests/fixtures/testcases/no_exception_if_no_missing/dist.yml

@@ -0,0 +1,4 @@
+parameters:
+    foo: bar
+    another: test
+    boolean: true

Tests/fixtures/testcases/no_exception_if_no_missing/existing.yml

@@ -0,0 +1,5 @@
+# This file is auto-generated during the composer install
+parameters:
+    foo: existing_foo
+    another: existing_test
+    boolean: false

Tests/fixtures/testcases/no_exception_if_no_missing/expected.yml

@@ -0,0 +1,5 @@
+# This file is auto-generated during the composer install
+parameters:
+    foo: existing_foo
+    another: existing_test
+    boolean: false

Tests/fixtures/testcases/no_exception_if_no_missing/setup.yml

@@ -0,0 +1,4 @@
+title: No exception is thrown in non-interaction mode if all the required params are provided
+
+config:
+    exception-if-missing: true