Is there an option for auto-create output dirs when compiling with javac?

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Catherina Svensson - 29 Apr 2008 07:09 GMT

When I perform a compiling operation like:

javac -d build\WEB-INF\classes my.java

and the directory build\WEB-INF\classes does NOT exist then the javac command fails.

Is there really no auto-create-dir-when-necessary option for javac ?

Cat

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Sabine Dinis Blochberger - 29 Apr 2008 09:33 GMT

> When I perform a compiling operation like:
>
[quoted text clipped - 5 lines]
>
> Cat

Is there a particular reason you don't want to use Ant[1]? It's like
Javas make and can do a multitude of tasks for you (compiling, creating
directories, packing into jars etc).

[1] <http://ant.apache.org/>

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Sabine Dinis Blochberger

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www.op3racional.eu

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Sabine Dinis Blochberger - 29 Apr 2008 09:40 GMT

> > When I perform a compiling operation like:
> >
[quoted text clipped - 11 lines]
>
> [1] <http://ant.apache.org/>

Before someone says something, you could use make itself aswell, that
comparison wasn't the best.

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Sabine Dinis Blochberger

Op3racional
www.op3racional.eu

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Lew - 29 Apr 2008 12:39 GMT

>> [1] <http://ant.apache.org/>
>>
> Before someone says something, you could use make itself as well

But nobody in their right mind would. You could also use shell scripts to
automate the construction of target directories and the like. I've seen that
done at major Java EE installations.

Catherina Svensson wrote:

>> Is there really no auto-create-dir-when-necessary option for javac ?

Why should there be? javac is a cross-platform compiler, not a file-system
manager. Is there really a requirement that Sun anticipate one's failure to
set up one's own environment correctly?

Ant does everything. If you are trying to automate builds, there is no better
choice.

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Lew

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Lew - 29 Apr 2008 13:03 GMT

> Is there really no auto-create-dir-when-necessary option for javac ?

You showed good use of "Follow-up" to contain a cross-post to a single
newsgroup, but actually the cross-post itself wasn't even needed. Pretty
much the same population peruses both clj.help and clj.programmer. You'll do
fine just picking one newsgroup in the first place.

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Lew

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Arved Sandstrom - 29 Apr 2008 16:32 GMT

> When I perform a compiling operation like:
>
[quoted text clipped - 6 lines]
>
> Cat

Not in the sense that you mean. The location pointed to by the -d option
must exist. Bear in mind that javac will certainly create directories as
required *in* the location you specify...for example:

javac -d targetdir dirA\dirB\*.java

will create

dirA\dirB\*.class

inside "targetDir".

Note that the explanation of the -d option in the javac documentation does
say that the destination directory will *not* be created.

AHS

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Is there an option for auto-create output dirs when compiling with javac?

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