[CMake] Support for multiple components in cpack

[Eric Noulard]

2010/8/9 Chris Wolf <cw10025 at gmail.com>:
>
>
> On 8/9/10 12:11 PM, Kishore wrote:
>> On Friday 06 Aug 2010 4:18:36 am Eric Noulard wrote:
>>> 2010/8/4 Kishore <kitts.mailinglists at gmail.com>:
>>>> On Monday 02 Aug 2010 4:59:47 pm Eric Noulard wrote:
>>>>> Hi All,
>>>>>
>>>>> I did add a patch for the "multiple file problem"
>>>>> http://public.kitware.com/Bug/view.php?id=10736
>>>>>
>>>>> May be interested people can have a try and comment
>>>>> this patch.
>>>>>
>>>>> It adds the possibility  for any CPack generators to generate multiple
>>>>> file. It adds "preliminary" support for component to all "Archive
>>>>> Generators" (ZIP, TGZ, STGZ etc...) as an example of use.
>>>>>
>>>>> The change is "backward compatible" in the sense that if
>>>>> all CPack generators (but the archive one) behaves as before
>>>>> with either componentized  project or not.
>>>>>
>>>>> Waiting for feedback before going on
>>>>
>>>> Thanks. It just tried this and it works as claimed. Later today, i will
>>>> inspect the generated packages on a windows machine too.
>>>
>>> Do you have feedback on WIndows?
>>
>> I tried this on windows today and it works fine there too! :)
>>
>> While i was with a windows machine, i also noticed that with the NSIS
>> installer, installation of libraries was not forced when applications alone
>> was chosen. Also, i wonder if there is a way to set which components should be
>> preselected. I guess I should just read the documentation first! :)
>
> I am going to want this on MacOS.  However, on this page:
>
> http://www.itk.org/Wiki/CMake:Component_Install_With_CPack
>
> A remark was added on 18 June, which reads:
>
>    Also, as of the time of this writing, the extensions to CPack
>    required to build component-based installers are only available
>    via CMake CVS.

June yes, but oldish June:  18 June 2008  :-)
Clearly the page needs an update :-)

> My version of CMake is 2.8.2, which I installed via an installer.  Does this mean
> that in order to build a component-based (not monolithic) installer with
> PackageMaker, that I need to checkout CMake and built from source?

Nope,
The PackageMaker seems to already support component installation
but apparently only for MacOS > 10.4:

from the code:
bool cmCPackPackageMakerGenerator::SupportsComponentInstallation() const
{
  return this->PackageCompatibilityVersion >= 10.4;
}

I leave the MacOS oriented support to other people because I didn't my hand
on a Mac for at least a decade :-)
-- 
Erk
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