aspose file tools*
The moose likes Java in General and the fly likes quick question on excluding certain files from javac... Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Java in General
Bookmark "quick question on excluding certain files from javac..." Watch "quick question on excluding certain files from javac..." New topic
Author

quick question on excluding certain files from javac...

Grary Stimon
Ranch Hand

Joined: Sep 30, 2008
Posts: 42
Hi,

I hoped to avoid a potentially lengthy and frustrating detour into regex syntax land and ask the following (I hope) simple question here...

How do I exclude compilation of java files with a certain string in their file names? In my case, I want to javac all files in a package except those containing the string "Test", e.g., RmiImplTest.java.

I hoped the experienced hands on the Ranch would know this cold!

Thanks,

Grary
Henry Wong
author
Sheriff

Joined: Sep 28, 2004
Posts: 18990
    
  40


I am assuming you are looking into writing a batch file or shellscript? if so, you need to give more details, such as OS, etc.

Henry


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39834
    
  28
Peculiar. Most people have the opposite problem, namely how to ensure that a certain file is compiled at all. If I remember correctly, the javac tool assumes that .java files imported from packages have already been compiled. It doesn't seem to compile them unless you instruct it to compile them.

How about

javac mypackage/*Test.java

?

And this is too difficult for beginners. Moving.
Grary Stimon
Ranch Hand

Joined: Sep 30, 2008
Posts: 42
Thanks for your replies.

No, I'm not writing a script. In development, I had wanted to test certain package-access class behaviors, so I included test files inside some packages. I do not want those test classes included in the final jar. So, I just want to exclude from my compilation via javac any .java files with the segment "Test" in their filename. So, I'm looking for some regex that does that.

Thanks for any further comment.

Thanks again,

Grary
Henry Wong
author
Sheriff

Joined: Sep 28, 2004
Posts: 18990
    
  40

No, I'm not writing a script.


Then you need to elaborate. Just exactly what are you using to build the jar files?

Henry
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39834
    
  28
Exclude them without Test. Oh sorry, I misread the original post.

How about what follows?

. . .


Find the classic Daconta paper about Runtime.exec(). Go through your package folder with the methods of the File class. Find all the file names. You can probably scan them with the indexOf method of String.
Then compile those which pass the test, using Runtime.exec().
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

If you're using Ant this is trivial. Or Unix-like shell.

I'm more used to seeing test code in a completely separate directory, which is the easiest solution of all.
Grary Stimon
Ranch Hand

Joined: Sep 30, 2008
Posts: 42
Thanks all for your comments. It seems that I should start using Ant.

Grary
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39834
    
  28
You're welcome
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
 
subject: quick question on excluding certain files from javac...