Re: [Evolution-hackers] Compile Evolution Mail as .so file with API for other GUI on ARM device

[Srinivasa Ragavan <sragavan gnome org>]

On Tue, Jan 31, 2012 at 3:00 PM, Michal G. <guziemic spam gmail com> wrote:
> Hi,
>
> Nice to meet the author of Anjal :)
>
> I went through code and Wiki yesterday and I am starting to understand just
> a little piece of very high architecture.
> I will try to compile EDS with my SDK for my ARM device. But first I need to
> familiarize with build process.
>
> As I understand within EDS there is mail engine - this Camel library which I
> could use and link dynamically with my GUI.
> Do you know if there is simple example that shows how to send email message?

Camel is just the mail access/storage library. I meant
libemail-engine.so in evolution/ project, which runs mails accounts,
checks for mails etc.

>
> Probably better way will be to use your e-mail-factory. Then I will be able
> to split GUI and Mail engine on two different processes.
> Will your e-mail factory be an official part of Evolution soon?

e-mail-factory should be in eds in 3.6 cycle, but that depends on how
much effort I get to merge evolution to use the mail daemon.

>
> I do not understand why you advice me to checkout branch of evolution. I
> thought that all data engines (mail and calendar) are covered by EDS.

e-mail-factory needs libemail-engine, which is in evolution. Evolution
needs EDS.

> And when I compile it I will be able to connect it with my GUI. It could be
> done over DBUS if I have two processes or just dynamic linking to GUI.
> Do I think correctly?

You GUI should speak over dbus to the daemon (which is a process by
itself) to fetch/access mails.

>
> Could you say, point me a document that describe how EDS store mails and
> calendar data. Is it some own database in file or some other mechanism?

I don't remember any doc for this, what ever you find could be
obsolete in some form I fear.

-Srini
>
> Michal
>
>
>
> On Mon, Jan 30, 2012 at 3:37 PM, Srinivasa Ragavan <sragavan gnome org>
> wrote:
>>
>> Hi
>>
>> On Mon, Jan 30, 2012 at 6:27 PM, Michal G. <guziemic spam gmail com>
>> wrote:
>> > Hi,
>> >
>> > Thank you for answer.
>> >
>> > Yes. I'm looking for mail engine that will be able to communicate for
>> > instance over DBUS which some UI.
>> > My device does not uses X.org, GTK and Cairo.
>> > It future, I would also append my software with Calendar functionality.
>>
>> Calendar is already in EDS available over DBUS.
>>
>> >
>> > I choosed to work with Evolution because I saw similar email client
>> > called
>> > Anjal that utilize Evolution but has own UI.
>>
>> I was the author of Anjal. It was build with Gtk/Cairo on top of
>> libevolution-mail. Now after mbarnes's awesome library breaks, I broke
>> mail engine to a independent library that can reside in EDS (in the
>> future) which I currently server over DBUS.
>>
>> You must checkout master branch of eds and evolution.
>> https://github.com/sragavan/e-mail-factory is the dbus engine that Im
>> working on, which is still under development. Some apis are fun and
>> still not up to the mark. But you can use them and it works fine.
>>
>> -Srini.
>>
>> >
>> > Could you tell me from which git should I clone
>> > - http://git.gnome.org/browse/evolution-data-server
>> > - http://git.gnome.org/browse/evolution
>> >
>> > And could you tell where to start, or what should I read some to
>> > - build mail engine library (http://mad-scientist.us/evolution.html -
>> > should
>> > I follow this process)
>> > - API of DBUS
>> >
>> > Michal
>> >
>> >
>> > On Sat, Jan 28, 2012 at 7:35 AM, Srinivasa Ragavan <sragavan gnome org>
>> > wrote:
>> >>
>> >> Hi Michal,
>> >>
>> >> On Fri, Jan 27, 2012 at 5:27 PM, Michal G. <guziemic spam gmail com>
>> >> wrote:
>> >> > Hi,
>> >> >
>> >> > I've been investigating a possibility of Evolution Mail
>> >> > cross-compilation
>> >> > for Linux X-less device (ARM) and use it as dynamic library that will
>> >> > provide me possibility to expose API that could be utilize by HMI
>> >> > layer.
>> >> >
>> >> > 1)    Is it possible to compile Evolution Mail without any user
>> >> > interface
>> >> > (pure –headless)? Or how much work would that require?
>> >> > 2)    Does Evolution architecture allows doing such split – mail
>> >> > supporting
>> >> > functionality and GUI?
>> >> > 3)    Is it possible to eliminate all unnecessary libs and resources?
>> >> > They’re using valuable device resources and may cause compilation
>> >> > problems.
>> >> > 4)    If I’m about hacking the build process to my needs (removing
>> >> > dependencies) where should I start?
>> >>
>> >> IIUC you want to use the engine of evolution, but not the UI. If so,
>> >> I've been working on a mail daemon which has all the mail logic built
>> >> in and exposes mail (basic) interface over dbus. If you aren't
>> >> interested in that, you can look at libemail-engine.so which is a new
>> >> library that I added a week ago in master which provides most of what
>> >> you are looking at except the UI.
>> >>
>> >> -Srini
>> >>
>> >> >
>> >> > Best regards,
>> >> > Michal Guzieniuk
>> >> >
>> >> >
>> >> > _______________________________________________
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>> >> >
>> >
>> >
>
>