[yocto] Where should I append Yocto bitbake task to create work folder symlink ?

[Woronicz, Bartosz ( NSN - PL/Wroclaw)]

On 09.02.2016 14:56, EXT Burton, Ross wrote:
>
> On 9 February 2016 at 13:51, Woronicz, Bartosz ( NSN - PL/Wroclaw) 
> <bartosz.woronicz at nokia.com <mailto:bartosz.woronicz at nokia.com>> wrote:
>
>     Here is the whole bbclass/:
>     /
>
>         DESCRIPTION = "Creates symlink to the latest version workdir
>         of the package"
>
>         do_latest_link() {
>             if [ -n "${WORKDIR}" ]; then
>                 linkname="$(dirname ${WORKDIR})/latest"
>                 rm -f $linkname
>                 ln -s $(basename ${WORKDIR}) $linkname
>             fi
>         }
>         addtask latest_link after do_unpack
>
>         do_unpack[postfuncs] += "do_latest_link"
>
>
>     But for better understanding I made the more throughout look into
>     the documentations. I found the information about "postfuncs" you
>     talk about [1]. However, the tasks description [2] doesn't say
>     anything about including the task in the process, it just
>     describes the demanded order that the task is put ( addtask
>     something after|before othertask ).
>
>     That is so, until I read "3.6. Variable Flags"  [3]. Where is
>     quite clearly stated those variables control functionality and
>     *dependencies*.
>     The documentation is quite unclear in that case.
>
>
> If you're using a postfunc you don't need to addtask at all: using 
> postfuncs means you don't need to have a separate task at all.
>
> Ross
Ok, I understand now that 'addtask' is only necessary when I need 
seperate task to run. I think you solved my issue. Thanks again!

Kind regards,
Bartosz Woronicz
Engineer, Software Configuration (SCM)
NSN - PL/Wroclaw

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