[Buildroot] integrating MariaDB Galera Cluster into BR

[Sylvain Raybaud <sylvain.raybaud@green-communications.fr>]

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Hi

Thanks for your fast reply! Sorry mine is late, I was on vacation.

On 24/04/2015 19:54, Yann E. MORIN wrote:
> Sylvain, All,
> 
> On 2015-04-24 16:49 +0200, Sylvain Raybaud spake thusly:

>> a) Create a meta-package, for example "mysql compatible DB", the 
>> selection of which would let the user choose between MariaDB
>> Galera Cluster or MySQL?
>> 
>> b) Integrate MariaDB Galera Cluster into MySQL package and let
>> the user choose which implementation he wants?
>> 
>> c) Make these packages mutually exclusive using "depends on !"?
> 
> I would say either b) or c). Which one depends on how MariaDB
> Galera is seen with respect to MySQL:
> 
> 1- is it a completely different implementation that is 100%
> compatible?
> 
> 2- is it a fork that is 100% compatible?
> 
> 3- is it a fork that is not 100% compatible?
> 
> For 1 or 2, I'd say go with b), otherwise go for c).

MariaDB is supposed to be a "drop-in replacement for MySQL" so I
suppose I should go for b).
https://mariadb.com/kb/en/mariadb/mariadb-vs-mysql-compatibility/
lists some differences but it seems that everything you can do with
MySQL you can do with MariaDB.

Does option b) allow dependencies specific to MariaDB?

> 
> If you decide for c), then only one can depend on not the ther 
> (otherwise you'd have a crcular dependency). That is, something
> like:
> 
> config BR2_PKG_MYSQL bool "mysql"
> 
> config BR2_PKG_MARIADB bool "mariadb" depends on !BR2_PKG_MYSQL
> 
> Anyway, if you're not sure, go for c); we will review the patch,
> and we can guide you based on the details.
> 
> in any case, be sure to read:
> 
> - the section(s) from the "Adding new packages to Buildroot"
> chapter, that applies to mariadb (e.g. generic, autotools,
> cmake...): 
> http://buildroot.net/downloads/manual/manual.html#adding-packages
> 
> - the section on how to send patches: 
> http://buildroot.net/downloads/manual/manual.html#submitting-patches

Doing
> 
so now. Thanks again!

Sylvain

> 
> Happy hacking! ;-)
> 
> Regards, Yann E. MORIN.
> 

- -- 
Sylvain Raybaud
www.green-communications.fr
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