sundar@1727: /*
sundar@1727:  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
sundar@1727:  *
sundar@1727:  * Redistribution and use in source and binary forms, with or without
sundar@1727:  * modification, are permitted provided that the following conditions
sundar@1727:  * are met:
sundar@1727:  *
sundar@1727:  *   - Redistributions of source code must retain the above copyright
sundar@1727:  *     notice, this list of conditions and the following disclaimer.
sundar@1727:  *
sundar@1727:  *   - Redistributions in binary form must reproduce the above copyright
sundar@1727:  *     notice, this list of conditions and the following disclaimer in the
sundar@1727:  *     documentation and/or other materials provided with the distribution.
sundar@1727:  *
sundar@1727:  *   - Neither the name of Oracle nor the names of its
sundar@1727:  *     contributors may be used to endorse or promote products derived
sundar@1727:  *     from this software without specific prior written permission.
sundar@1727:  *
sundar@1727:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
sundar@1727:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
sundar@1727:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sundar@1727:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
sundar@1727:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
sundar@1727:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
sundar@1727:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
sundar@1727:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
sundar@1727:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
sundar@1727:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
sundar@1727:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sundar@1727:  */
sundar@1727: 
sundar@1727: var Files = java.nio.file.Files;
sundar@1727: var File = java.io.File;
sundar@1727: var d = arguments.length == 0? "." : arguments[0];
sundar@1727: 
sundar@1727: // print total number of lines in all .java files under a
sundar@1727: // given directory (recursively)
sundar@1727: 
sundar@1727: print(Files.walk(new File(d).toPath()).
sundar@1727:   filter(function(p) p.toString().endsWith(".java")).
sundar@1727:   mapToInt(function(p) Files.lines(p).count()).sum())