[Scons-users] Java builder is rebuilds when not needed

[Bill Deegan]

When a file is built, then it would get scanned.
So likely that's not the case.

On Wed, Jan 29, 2020 at 10:17 AM Pierre-Luc Boily <pierreluc.boily at gmail.com>
wrote:

> I think I know what the problem is.  At the first scons pass, java files
> that are generated from idl into the variant dir don't exist yet.  So,
> scons can`t scan the java file for "package" statement.  That is why the
> target is
>
> classes/fileName.class
> instead of
> classes/adacel/speech/fileName.class
>
> For this understandable reason, I don't have the choice to create my own
> builder around the Java builder.  This builder will take care of creating
> java from idl and create the correct targets in the emitter.
>
> Le mer. 29 janv. 2020, à 11 h 32, Pierre-Luc Boily <
> pierreluc.boily at gmail.com> a écrit :
>
>> Hello,
>>
>> I have a case where
>> 1- I am creating java files from idl then
>> 2- Compile those java files
>>
>> All my java files starts with "package adacel.speech;"
>>
>> --------------------------------
>> generated_java_target += env.Command(
>>                                      target='ActivateGrammar.java',
>>
>> source='#sr/speech/common_dds/ActivateGrammar.idl',
>>                                      action=[idl_command])
>>
>> classes_tgt = env.Java(target='classes',
>>                        source=generated_java_target)
>> ---------------------------------
>>
>> The code above generates all my class files under "classes/adacel/speech",
>> which is correct.
>>
>> But when I start another build with following code :
>> for i in classes_tgt:
>>     print(str(i))
>>
>> I can see that all my class targets looks like this :
>> classes\ActivateGrammar.class
>>
>> Which is incorrect.  scons tell me :
>> scons: building
>>
>> `build\sr\speech\ContextualPostProcessor\RulesEngine\DroolsGenericModel\classes\TimeValueHolder.class'
>> because it doesn't exist
>>
>> Scons should look under classes\adacel\speech
>>
>> Am I doing something incorrect?  Is this a bug in Java builder?  As a
>> workaround, I though doing my own builder that takes idl that generates
>> java
>> file and build it.  And within the emitter, generate all class targets
>> that
>> points to correct path.  It could be faster, because in that case, I could
>> generate all java files and compile them at once.
>>
>>
>>
>> --
>> Sent from: http://scons.1086193.n5.nabble.com/Users-f16930.html
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