[OE-core] [oe-core][rocko][sumo][master][PATCH 1/2] bitbake.conf: add PERSISTENT_LOG_DIR variable

[ChenQi]

The requirement is to put logs into directories other than /var/log.
Could it be achieved by modifying the syslog daemon configuration file 
(e.g. /etc/syslog.conf) to replace /var/log with the specified 
directory. Maybe the corresponding logrotate configuration file also 
needs to be modified.

Best Regards,
Chen Qi

On 08/18/2018 08:59 AM, Ankur Tyagi wrote:
> This variable is only respected when VOLATILE_LOG_DIR is "no".
>
> The default value is "" which results in the /var/log being log directory.
>
> The user could override this value to a path e.g "/home/root/log" which
> results /var/log being a link pointing to /home/root/log directory on
> persistent storage.
>
> Signed-off-by: Ankur Tyagi <ankur.tyagi85 at gmail.com>
> ---
>   meta/conf/bitbake.conf | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> index e5dc1ac..9db22c8 100644
> --- a/meta/conf/bitbake.conf
> +++ b/meta/conf/bitbake.conf
> @@ -88,6 +88,8 @@ ROOT_HOME ??= "/home/root"
>   # If set to boolean true ('yes', 'y', 'true', 't', '1'), /var/log links to /var/volatile/log.
>   # If set to boolean false ('no', 'n', 'false', 'f', '0'), /var/log is on persistent storage.
>   VOLATILE_LOG_DIR ?= "yes"
> +# If VOLATILE_LOG_DIR is false and PERSISTENT_LOG_DIR is set, /var/log links to PERSISTENT_LOG_DIR
> +PERSISTENT_LOG_DIR ??= ""
>   
>   ##################################################################
>   # Architecture-dependent build variables.