SQSCANNER-61 Consider 'project.settings' if set using SONARQUBE_SCANNER_PARAMS

it/src/test/java/com/sonarsource/scanner/it/ScannerTest.java

@@ -25,6 +25,7 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Map;
 import java.util.stream.Collectors;
+import org.apache.commons.lang.StringEscapeUtils;
 import org.junit.After;
 import org.junit.Rule;
 import org.junit.Test;
@@ -209,4 +210,16 @@ public class ScannerTest extends ScannerTestCase {
     assertThat(getComponent("sample-with-custom-settings-path").getName()).isEqualTo("Test with custom settings location");
   }
 
+  // SQSCANNER-61
+  @Test
+  public void should_override_project_settings_path_using_env_variable() {
+    File projectHome = new File("projects/override-project-settings-path");
+    SonarScanner build = newScanner(projectHome)
+      .setEnvironmentVariable("SONARQUBE_SCANNER_PARAMS", "{"
+        + "\"project.settings\" : \"" + StringEscapeUtils.escapeJavaScript(new File(projectHome, "conf/sq-project.properties").getAbsolutePath()) + "\"}");
+    orchestrator.executeBuild(build);
+
+    assertThat(getComponent("sample-with-custom-settings-path").getName()).isEqualTo("Test with custom settings location");
+  }
+
 }

src/main/java/org/sonarsource/scanner/cli/Conf.java

@@ -78,7 +78,13 @@ class Conf {
   }
 
   private Properties loadGlobalProperties() {
-    Path settingsFile = locatePropertiesFile(cli.properties(), SCANNER_HOME, "conf/sonar-scanner.properties",
+    Properties knownPropsAtThatPoint = new Properties();
+
+    knownPropsAtThatPoint.putAll(System.getProperties());
+    knownPropsAtThatPoint.putAll(loadEnvironmentProperties());
+    knownPropsAtThatPoint.putAll(cli.properties());
+
+    Path settingsFile = locatePropertiesFile(knownPropsAtThatPoint, SCANNER_HOME, "conf/sonar-scanner.properties",
       SCANNER_SETTINGS);
     if (settingsFile != null && Files.isRegularFile(settingsFile)) {
       logger.info("Scanner configuration file: " + settingsFile);
@@ -90,13 +96,14 @@ class Conf {
 
   private Properties loadProjectProperties() {
     Properties rootProps = new Properties();
-    Properties knownProps = new Properties();
+    Properties knownPropsAtThatPoint = new Properties();
 
-    knownProps.putAll(System.getProperties());
-    knownProps.putAll(cli.properties());
+    knownPropsAtThatPoint.putAll(System.getProperties());
+    knownPropsAtThatPoint.putAll(loadEnvironmentProperties());
+    knownPropsAtThatPoint.putAll(cli.properties());
 
-    Path defaultRootSettingsFile = getRootProjectBaseDir(knownProps).resolve(SONAR_PROJECT_PROPERTIES_FILENAME);
-    Path rootSettingsFile = locatePropertiesFile(defaultRootSettingsFile, knownProps, PROJECT_SETTINGS);
+    Path defaultRootSettingsFile = getRootProjectBaseDir(knownPropsAtThatPoint).resolve(SONAR_PROJECT_PROPERTIES_FILENAME);
+    Path rootSettingsFile = locatePropertiesFile(defaultRootSettingsFile, knownPropsAtThatPoint, PROJECT_SETTINGS);
     if (rootSettingsFile != null && Files.isRegularFile(rootSettingsFile)) {
       logger.info("Project root configuration file: " + rootSettingsFile);
       rootProps.putAll(toProperties(rootSettingsFile));
@@ -110,7 +117,7 @@ class Conf {
     // root config file
     projectProps.putAll(rootProps);
 
-    rootProps.putAll(knownProps);
+    rootProps.putAll(knownPropsAtThatPoint);
     rootProps.setProperty(PROPERTY_PROJECT_BASEDIR, getRootProjectBaseDir(rootProps).toString());
 
     // projectProps will be overridden by any properties found in child

src/test/java/org/sonarsource/scanner/cli/ConfTest.java

@@ -316,4 +316,19 @@ public class ConfTest {
     properties = conf.properties();
     assertThat(properties.get("sonar.prop")).isEqualTo("expected");
   }
+
+  // SQSCANNER-61
+  @Test
+  public void should_load_project_settings_using_env() throws Exception {
+    Path home = Paths.get(getClass().getResource("ConfTest/shouldOverrideProjectSettingsPath/").toURI());
+    args.setProperty("project.home", home.toAbsolutePath().toString());
+
+    Properties properties = conf.properties();
+    assertThat(properties.get("sonar.prop")).isEqualTo("default");
+
+    env.put("SONARQUBE_SCANNER_PARAMS", "{\"project.settings\" : \"" + home.resolve("conf/sq-project.properties").toAbsolutePath().toString() + "\"}");
+
+    properties = conf.properties();
+    assertThat(properties.get("sonar.prop")).isEqualTo("expected");
+  }
 }