[Buildroot] dependence on bash and coreutils

[Buildroot] dependence on bash and coreutils

[Sylvain Raybaud]

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Hi,

A script packaged into mariadb galera cluster and necessary for
running a cluster require bash to be run. I was wondering if such a
dependency should be a "select" or a "depends on". What do you think?

Also, the same script calls "sleep" several times with non integer
arguments. The busybox version of sleep will not take such arguments.
There are a few options:

a) patch the script to only pass integer arguments, i.e. replace
"sleep 0.5" with "sleep 1" and "sleep 0.2" also with "sleep 1". I
strongly dislike this alternative.

or

b) make mariadb depend on coreutils, which provides a version of sleep
that takes non floating point arguments.

or

c) somehow patch the busybox package to make available the option to
build sleep with support for floating point arguments and make mariadb
depend on this option.

What do you think is best?

cheers,

- -- 
Sylvain Raybaud
www.green-communications.fr
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[Buildroot] dependence on bash and coreutils

[Arnout Vandecappelle]

On 06/19/15 16:45, Sylvain Raybaud wrote:
> Hi,
> 
> A script packaged into mariadb galera cluster and necessary for
> running a cluster require bash to be run. I was wondering if such a
> dependency should be a "select" or a "depends on". What do you think?

 select. Also add a comment # runtime dependency only

 And make sure to check that the scripts really put /bin/bash as their shebang
and not /bin/sh.

 Also, don't forget to select BR2_PACKAGE_BUSYBOX_SHOW_OTHERS.


> Also, the same script calls "sleep" several times with non integer
> arguments. The busybox version of sleep will not take such arguments.
> There are a few options:
> 
> a) patch the script to only pass integer arguments, i.e. replace
> "sleep 0.5" with "sleep 1" and "sleep 0.2" also with "sleep 1". I
> strongly dislike this alternative.

 I tend to agree.

> 
> or
> 
> b) make mariadb depend on coreutils, which provides a version of sleep
> that takes non floating point arguments.

 That's definitely an option.

> 
> or
> 
> c) somehow patch the busybox package to make available the option to
> build sleep with support for floating point arguments and make mariadb
> depend on this option.

 You could indeed add a patch that seelcts CONFIG_FEATURE_FANCY_SLEEP and
CONFIG_FEATURE_FLOAT_SLEEP in busybox.config. I just checked, it adds 600 bytes
to the 480K of busybox in an arm thumb2 build. So for me, it's a go.

 Regards,
 Arnout

> 
> What do you think is best?
> 
> cheers,
> 
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-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
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