X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2FFsUtils.java;h=23839db74c3f93c8c2f82a740089c39499b756d8;hb=f3ea14abccc33b1c3326417a87c91145be776c72;hp=b317f4bc95bbfaa6570487c614e9bc8225276849;hpb=2752f591462f846423020ef1c1989766b20cd554;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.util/src/org/argeo/util/FsUtils.java b/org.argeo.util/src/org/argeo/util/FsUtils.java
index b317f4bc9..23839db74 100644
--- a/org.argeo.util/src/org/argeo/util/FsUtils.java
+++ b/org.argeo.util/src/org/argeo/util/FsUtils.java
@@ -9,6 +9,43 @@ import java.nio.file.attribute.BasicFileAttributes;
 
 /** Utilities around the standard Java file abstractions. */
 public class FsUtils {
+
+	/**
+	 * Deletes this path, recursively if needed. Does nothing if the path does not
+	 * exist.
+	 */
+	public static void copyDirectory(Path source, Path target) {
+		if (!Files.exists(source) || !Files.isDirectory(source))
+			throw new IllegalArgumentException(source + " is not a directory");
+		if (Files.exists(target) && !Files.isDirectory(target))
+			throw new IllegalArgumentException(target + " is not a directory");
+		try {
+			Files.createDirectories(target);
+			Files.walkFileTree(source, new SimpleFileVisitor<Path>() {
+				@Override
+				public FileVisitResult postVisitDirectory(Path directory, IOException e) throws IOException {
+					if (e != null)
+						throw e;
+					Path relativePath = source.relativize(directory);
+					Path targetDirectory = target.resolve(relativePath);
+					Files.createDirectory(targetDirectory);
+					return FileVisitResult.CONTINUE;
+				}
+
+				@Override
+				public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+					Path relativePath = source.relativize(file);
+					Path targetFile = target.resolve(relativePath);
+					Files.copy(file, targetFile);
+					return FileVisitResult.CONTINUE;
+				}
+			});
+		} catch (IOException e) {
+			throw new RuntimeException("Cannot copy " + source + " to " + target, e);
+		}
+
+	}
+
 	/**
 	 * Deletes this path, recursively if needed. Does nothing if the path does not
 	 * exist.