Re: ant task to compute lines of code

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 18 Nov 2012 11:52:10 -0500

Message-ID:

<50a9123d$0$293$14726298@news.sunsite.dk>

On 11/18/2012 10:43 AM, Laura Schmidt wrote:

Hello,

I want to find out the total lines of code of a project using an ant task.

On the commandline I would do this like this:

find src -name *.java | wc -l

In ant, I only managed to output all the code:

  <target name="loc">
   <exec executable="find">
    <arg line="src -name *.java -exec cat {} ;"/>
   </exec>
  </target>

So I can get the loc like this:

ant -f project.xml loc | wc -l

But how can I integrate the "wc -l" in the ant task?

I would code an ant task to do it.

Actually I have.

:-)

See below.

Arne

================

code:

package dk.vajhoej.anttasks.codestats;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.FileSet;

public class JavaCodeStatsTask extends Task {
     private String label;
     private boolean cf;
     private boolean cl;
     private List<FileSet> allfs = new ArrayList<FileSet>();
     @Override
     public void execute() {
         int nf = 0;
         int nl = 0;
         for(FileSet fs : allfs) {
             DirectoryScanner ds = fs.getDirectoryScanner();
             for(String fnm : ds.getIncludedFiles()) {
                 File f = new File(ds.getBasedir(), fnm);
                 nf++;
                 try {
                     BufferedReader br = new BufferedReader(new
FileReader(f));
                     while(br.readLine() != null) {
                         nl++;
                     }
                 } catch (FileNotFoundException e) {
                     e.printStackTrace();
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
         }
         System.out.println(label + ":");
         if(cf) {
             System.out.println(" Number of files: " + nf);
         }
         if(cl) {
             System.out.println(" Number of lines: " + nl);
         }
     }
     /**
      * Specify label to use.
      * @param label label
      */
     public void setLabel(String label) {
         this.label = label;
     }
     /**
      * Specify whether to count files.
      * @param cf true=count false=not count
      */
     public void setCountfiles(boolean cf) {
         this.cf = cf;
     }
     /**
      * Specify whether to count lines.
      * @param cl true=count false=not count
      */
     public void setCountlines(boolean cl) {
         this.cl = cl;
     }
     /**
      * Specify a file set to process.
      * @param fs file set
      */
     public void addFileSet(FileSet fs) {
         allfs.add(fs);
     }
}

example:

     <target name="count">
         <taskdef name="javacodestats" classpath="${anttaskslib}"
classname="dk.vajhoej.anttasks.codestats.JavaCodeStatsTask"/>
         <javacodestats label="Library" countfiles="yes" countlines="yes">
             <fileset dir="src" includes="dk/vajhoej/record/*.java"/>
         </javacodestats>
         <javacodestats label="Unit test" countfiles="yes" countlines="yes">
             <fileset dir="src" includes="dk/vajhoej/record/test/*.java"/>
         </javacodestats>
     </target>