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From Steve Peterson <stevep...@virtation.com>
Subject Classic command line on NT
Date Thu, 27 Apr 2000 15:34:23 GMT
My configuration:  Ant of 4/18/00 2:53 PM (most recent .tar.gz), on NT 4 SP 
6 with JDK1.2.2.

I'm having an issue with the destination directory for .class files in Ant 
builds.  My goal is to have the .class file live in the same directory as 
the .java file.

In my build.xml I say

   <javac
		srcdir="${src.java.dir}/com/databottling/fountain/core"
		destdir="${src.java.dir}/com/databottling/fountain/core"
		includes="Constants.java"
		debug="${debug}"
	/>

where <property name="src.java.dir" value="src"/>

If there is a Constants.class in the destdir, javac will overwrite that 
with the newly created .class.  If there isn't, javac creates a 
com/databottling/fountain/core/Constants.class inside destdir, which isn't 
what I want.

The javac command line being generated is

Using classic compiler
Compilation args: [-d, 
C:\user\work\databottling\fountain\src\com\databottling\fountain\core, 
-classpath, 
C:\user\work\databottling\fountain\src\com\databottling\fountain\core;C:\JRu 
n\jre\lib\ext\QTJava.zip;C:\b\jdk1.2.2\lib\tools.jar;C:\user\java\jakarta-an 
t\lib\ant.jar;C:\user\java\jakarta-ant\lib\xml.jar;C:\user\java\jakarta-tomc 
at-3.1\lib\servlet.jar;C:\user\java\jakarta-tomcat-3.1\lib\webserver.jar;C:\ 
user\java\xerces-1_0_3\tools\xerces-1.0.1.jar;C:\user\java\jgl3.1.0\lib\jgl3 
.1.0.jar;C:\user\java\ecs-1.2\bin\ecs-1.2.jar;C:\user\java\castor-0.8\castor 
-0.8.jar;C:\user\work\databottling\fountain\src, -sourcepath, 
C:\user\work\databottling\fountain\src\com\databottling\fountain\core, -g]
Files to be compiled:
     C:\user\work\databottling\fountain\src\com\databottling\fountain\core\C 
C:\user\work\databottling\fountain\src\com\databottling\fountain\core\Consta 
nts.java

Trying this out at the command line, it looks like if the -d option is left 
off then javac will put the Constants.class file in the same directory as 
the source.

I made a patch to javac.java to suppress -d in the case where srcdir and 
destdir are the same place, but I'm an Ant newbie and am looking for any 
guidance available.

Steve Peterson

--- src\org\apache\tools\ant\taskdefs\javac.java	Tue Apr 18 14:53:08 2000
+++ src\main\org\apache\tools\ant\taskdefs\javac.java	Thu Apr 27 10:11:24 2000
@@ -355,17 +355,21 @@
          if (deprecation == true)
              argList.addElement("-deprecation");

-        argList.addElement("-d");
-        argList.addElement(destDir.getAbsolutePath());
+	String destPath = destDir.getAbsolutePath();
+	String srcPath = srcDir.getAbsolutePath();
+	if (!destPath.equals(srcPath)) {
+	  argList.addElement("-d");
+	  argList.addElement(destPath);
+	}
          argList.addElement("-classpath");
          // Just add "sourcepath" to classpath ( for JDK1.1 )
          if (Project.getJavaVersion().startsWith("1.1")) {
              argList.addElement(classpath + File.pathSeparator +
-                               srcDir.getAbsolutePath());
+                               srcPath);
          } else {
              argList.addElement(classpath);
              argList.addElement("-sourcepath");
-            argList.addElement(srcDir.getAbsolutePath());
+            argList.addElement(srcPath);
              if (target != null) {
                  argList.addElement("-target");
                  argList.addElement(target);



--
Steve Peterson                               +1 952 948 9729
Principal Consultant                     FAX +1 612 677 3050
Virtation Technologies, Inc.            http://virtation.com


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