[maemo-developers] Developing for all IT platforms

[From: Santtu Lakkala]

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Marius Gedminas wrote:
> On Thu, Oct 18, 2007 at 10:12:29PM +0100, Neil Jerram wrote:
>> Is there a recommended procedure for setting up Scratchbox so that one
>> can easily compile an application and build its package for all of the
>> IT platforms (i.e. ideally: 770 with latest 2006 OS, 770 with HE, N800
>> with latest 2007 OS, and N810 with whatever its OS is).
> 
> I had Maemo 2.1 and 3.0 targets side-by-side in my Scratchbox once.  I
> haven't tried installing 4.0, 3.2 and 2.2 yet (actually I haven't gotten
> up to installing scratchbox on my new laptop yet, it's just too tedious.
> I want 'apt-get install maemo-sdk-4.0 maemo-sdk-3.2 maemo-sdk-2.2'!)

I have targets for mistral/2.0 (to support mistral, scirocco and
gregale), bora/3.0 (to support bora 3.0, 3.1, 3.2) and now chinook-beta
to support the upcoming N810. I then compile packages first on mistral
and see if they work on bora -- if they don't, rebuild with bora...

>> and/or providing .install
>> files, so that an IT user will easily be able to get the version of
>> the package that is right for them?
> 
> The Extras repository will generate several .install files for you,
> which is a bit silly, because you want only one that works for all OS
> versions.  Merging them into a single .install isn't too difficult, and
> the format is pretty obvious.  It is documented here:
> 
> https://stage.maemo.org/svn/maemo/projects/haf/trunk/osso-application-installer/doc/repository.txt
> 
> Hm, it only speaks of OS2006 (where .install files are not officially
> supported, but work fine nevertheless) and OS2007.

I didn't find documentation for chinook .install files, but reading the
source, I got the following:

- ----8<----8<----8<----
[install]
package = <package to be installed>
catalogues = <comma separated list of repositories for the package>

[<repository1>]
name = <repository name>
uri = <base uri>
dist = <dist name>
components = <components>
- ----8<----8<----8<----

Of course the .install file can still include the repo_name, repo_deb
and repo_deb_3. For example, mh-shot-tool install file currently looks
like this:

- ----8<----8<----8<----
[install]
repo_name = maemo-hackers
catalogues = maemo-hackers-chinook
repo_deb = deb http://maemo-hackers.org/apt mistral main
repo_deb_3 = deb http://maemo-hackers.org/apt bora main
package = mh-shot-tool

[maemo-hackers-chinook]
name=Maemo Hackers for chinook
uri=http://maemo-hackers.org/apt
dist=chinook
components=main
- ----8<----8<----8<----

- --
Santtu Lakkala
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