Hello again,

> Am 21.05.2017 um 10:50 schrieb Benedikt Ritter <brit...@apache.org>:
> 
> Hello Stephen,
> 
>> Am 19.05.2017 um 04:52 schrieb Stephen Colebourne <scolebou...@joda.org 
>> <mailto:scolebou...@joda.org>>:
>> 
>> Is reusing ${commons.osgi.symbolicName} a good idea?
> 
> I thought it is, because this way we will automatically have the additional 
> entry after we update a component to the new parent pom version. :o)
> 
>> It seems to me that each project should have to opt-in to this
>> attribute, so I'd add a new ${commons.automatic.moduile.name}
>> variable.
> 
> I’d go with ${commons.automatic-module-name}.
> 
>> 
>> One reason is that the attribute should only be added if the project
>> is suitable for use as a module (eg. no packages that clash with any
>> other module, doesn't force cycles in dependencies). I'm not convinced
>> that all commons projects are valid yet.
> 
> Okay, how do we find out whether a component is valid?
> 
>> 
>> The second reason is that we will ultimately need to add a real
>> module-info.java file to each module. The Automatic-Module-Name
>> attribute is temporary while the commons projects are worked through
>> and released. When there is a module-info.java file, we definitely
>> don't want the Automatic-Module-Name attribute (although it does no
>> harm, it would look bad).
>> 
>> The opt-in approach is slightly more work, but better in the long run I 
>> think.
> 
> I’ll try to come up with something when I have the time again.

This is not as straight forward as I thought. Simply adding 

<Automatic-Module-Name>${commons.automatic-module-name}</Automatic-Module-Name>

Does not work, since this will add an empty entry to the resulting manifest 
file, if a component does not specify the commons.automatic-module-name 
property.

Then I thought we have to add it to a profile. But how do we activate the 
profile? Profile activation can only be made based on system properties, not on 
build properties.

Does anybody have an idea how to add this to commons parent?

Benedikt

> 
> Thank you!
> Benedikt
> 
>> 
>> WDYT?
>> Stephen
>> 
>> 
>> On 18 May 2017 at 20:21, Gary Gregory <garydgreg...@gmail.com> wrote:
>>> On May 18, 2017 12:09 PM, "Benedikt Ritter" <brit...@apache.org> wrote:
>>> 
>>> Hi,
>>> 
>>> here is my proposal on how to get the Automatic-Module-Name entry into our
>>> MANIFEST files. This change has to be made only in commons parent. This is
>>> the change:
>>> 
>>> Index: pom.xml
>>> ===================================================================
>>> --- pom.xml     (revision 1795551)
>>> +++ pom.xml     (working copy)
>>> @@ -601,6 +601,7 @@
>>>              <Implementation-Build>${implementation.build}</
>>> Implementation-Build>
>>>              <X-Compile-Source-JDK>${maven.compiler.source}</X-Compile-
>>> Source-JDK>
>>>              <X-Compile-Target-JDK>${maven.compiler.target}</X-Compile-
>>> Target-JDK>
>>> +              <Automatic-Module-Name>${commons.osgi.symbolicName}</
>>> Automatic-Module-Name>
>>>            </manifestEntries>
>>>          </archive>
>>>        </configuration>
>>> 
>>> 
>>> For Commons Lang this will create:
>>> 
>>>  Automatic-Module-Name: org.apache.commons.lang3
>>> 
>>> 
>>> WDYT?
>>> 
>>> 
>>> Seems reasonable enough.
>>> 
>>> Gary
>>> 
>>> Benedikt
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