Start moving config copy logic

java/net/i2p/router/CopyConfigDir.java

@@ -0,0 +1,60 @@
+package net.i2p.router;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class CopyConfigDir {
+
+  public boolean copyDirectory(String baseDir, String workDir) {
+    File baseFile = new File(baseDir);
+    File workFile = new File(workDir);
+    return copyDirectory(baseFile, workFile);
+  }
+  public boolean copyDirectory(File baseDir, File workDir) {
+    for (File file : baseDir.listFiles()) {
+      System.out.println(file.getAbsolutePath());
+    }
+    return true;
+  }
+
+  public boolean copyFileNeverOverwrite(String basePath, String workPath) {
+    File baseFile = new File(basePath);
+    File workFile = new File(workPath);
+    return copyFileNeverOverwrite(baseFile, workFile);
+  }
+
+  public boolean copyFileNeverOverwrite(File basePath, File workPath) {
+    return copyFile(basePath, workPath, false);
+  }
+
+  public boolean copyFile(File basePath, File workPath, boolean overWrite) {
+    if (!basePath.exists()) {
+      return false;
+    }
+    if (!overWrite && workPath.exists()) {
+      return false;
+    }
+    try (InputStream in =
+             new BufferedInputStream(new FileInputStream(basePath));
+         OutputStream out =
+             new BufferedOutputStream(new FileOutputStream(workPath))) {
+
+      byte[] buffer = new byte[1024];
+      int lengthRead;
+      while ((lengthRead = in.read(buffer)) > 0) {
+        out.write(buffer, 0, lengthRead);
+        out.flush();
+      }
+      in.close();
+      out.close();
+      return true;
+    } catch (Throwable e) {
+      return false;
+    }
+  }
+}