SONAR-11606 Stop excluding directories starting with a dot

sonar-plugin-api/src/main/java/org/sonar/api/batch/fs/internal/AbstractProjectOrModule.java

@@ -22,6 +22,7 @@ package org.sonar.api.batch.fs.internal;
 import java.io.File;
 import java.io.IOException;
 import java.nio.charset.Charset;
+import java.nio.file.Files;
 import java.nio.file.LinkOption;
 import java.nio.file.Path;
 import java.util.Collections;
@@ -30,12 +31,15 @@ import java.util.Map;
 import javax.annotation.CheckForNull;
 import javax.annotation.concurrent.Immutable;
 import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang.SystemUtils;
 import org.sonar.api.CoreProperties;
 import org.sonar.api.batch.bootstrap.ProjectDefinition;
+import org.sonar.api.utils.log.Logger;
+import org.sonar.api.utils.log.Loggers;
 
 @Immutable
 public abstract class AbstractProjectOrModule extends DefaultInputComponent {
-
+  private static final Logger LOGGER = Loggers.get(AbstractProjectOrModule.class);
   private final Path baseDir;
   private final Path workDir;
   private final String name;
@@ -92,7 +96,15 @@ public abstract class AbstractProjectOrModule extends DefaultInputComponent {
 
   private static Path initWorkingDir(ProjectDefinition module) {
     File workingDirAsFile = module.getWorkDir();
-    return workingDirAsFile.getAbsoluteFile().toPath().normalize();
+    Path workingDir = workingDirAsFile.getAbsoluteFile().toPath().normalize();
+    if (SystemUtils.IS_OS_WINDOWS) {
+      try {
+        Files.setAttribute(workingDir, "dos:hidden", true, LinkOption.NOFOLLOW_LINKS);
+      } catch (IOException e) {
+        LOGGER.warn("Failed to set working directory hidden: {}", e.getMessage());
+      }
+    }
+    return workingDir;
   }
 
   /**

sonar-plugin-api/src/test/java/org/sonar/api/batch/fs/internal/DefaultInputModuleTest.java

@@ -39,7 +39,7 @@ public class DefaultInputModuleTest {
   public TemporaryFolder temp = new TemporaryFolder();
 
   @Test
-  public void testGetters() throws IOException {
+  public void check_getters() throws IOException {
     ProjectDefinition def = ProjectDefinition.create();
     def.setKey("moduleKey");
     File baseDir = temp.newFolder();
@@ -68,4 +68,15 @@ public class DefaultInputModuleTest {
     assertThat(module.isFile()).isFalse();
   }
 
+  @Test
+  public void working_directory_should_be_hidden() throws IOException {
+    ProjectDefinition def = ProjectDefinition.create();
+    File workDir = temp.newFolder(".sonar");
+    def.setWorkDir(workDir);
+    File baseDir = temp.newFolder();
+    def.setBaseDir(baseDir);
+    DefaultInputModule module = new DefaultInputModule(def);
+    assertThat(workDir.isHidden()).isTrue();
+  }
+
 }

sonar-scanner-engine/src/main/java/org/sonar/scanner/scan/filesystem/ProjectFileIndexer.java

@@ -25,8 +25,10 @@ import java.nio.file.FileVisitOption;
 import java.nio.file.FileVisitResult;
 import java.nio.file.FileVisitor;
 import java.nio.file.Files;
+import java.nio.file.LinkOption;
 import java.nio.file.Path;
 import java.nio.file.attribute.BasicFileAttributes;
+import java.nio.file.attribute.DosFileAttributes;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Iterator;
@@ -35,6 +37,7 @@ import java.util.Optional;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang.SystemUtils;
 import org.sonar.api.batch.fs.InputFile.Type;
 import org.sonar.api.batch.fs.internal.DefaultInputModule;
 import org.sonar.api.batch.fs.internal.InputModuleHierarchy;
@@ -190,12 +193,7 @@ public class ProjectFileIndexer {
 
     @Override
     public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
-      Path fileName = dir.getFileName();
-
-      if (fileName != null && fileName.toString().length() > 1 && fileName.toString().charAt(0) == '.') {
-        return FileVisitResult.SKIP_SUBTREE;
-      }
-      if (Files.isHidden(dir)) {
+      if (isHidden(dir)) {
         return FileVisitResult.SKIP_SUBTREE;
       }
       return FileVisitResult.CONTINUE;
@@ -223,6 +221,18 @@ public class ProjectFileIndexer {
     public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
       return FileVisitResult.CONTINUE;
     }
-  }
 
+    private boolean isHidden(Path path) throws IOException {
+      if (SystemUtils.IS_OS_WINDOWS) {
+        try {
+          DosFileAttributes dosFileAttributes = Files.readAttributes(path, DosFileAttributes.class, LinkOption.NOFOLLOW_LINKS);
+          return dosFileAttributes.isHidden();
+        } catch (UnsupportedOperationException e) {
+          return path.toFile().isHidden();
+        }
+      } else {
+        return Files.isHidden(path);
+      }
+    }
+  }
 }