Alternative download paths for RSB?

[Sebastian Huber]

On 20/12/2021 22:52, Chris Johns wrote:
> On 21/12/21 2:33 am, Joel Sherrill wrote:
>> On Mon, Dec 20, 2021 at 8:54 AM Joel Sherrill <joel at rtems.org> wrote:
>>>
>>> On Mon, Dec 20, 2021 at 6:59 AM Sebastian Huber
>>> <sebastian.huber at embedded-brains.de> wrote:
>>>>
>>>> Hello,
>>>>
>>>> it seems the GNU web server is down:
>>>
>>> Yep. Still down.
>>>
>>> i reached out to the sourceware admins to see if they knew who to
>>> contact. I couldn't find a gnu.org address.
>>
>> Social media post from FSF forwarded by one of the sourceware admins
>> about a general outage at the FSF:
>> https://hostux.social/@fsfstatus/107479476196064925
>>
>> Looks to be up now. RSB handling mirrors would be good. Although
>> it would seem to be complex to ensure that all entries and mirrors are
>> correct.
>>
>>>
>>>>
>>>> download: https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.4.tar.bz2 ->
>>>> sources/mpfr-3.1.4.tar.bz2
>>>> download: https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.4.tar.bz2: error:
>>>> <urlopen error [Errno 101] Network is unreachable>
>>>> error: downloading https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.4.tar.bz2: all
>>>> paths have failed, giving up
>>>> Build FAILED
>>>> error: downloading https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.4.tar.bz2: all
>>>> paths have failed, giving up
>>>> Build Set: Time 0:04:23.318509
>>>> Build FAILED
>>>>
>>>> The error message suggests that it is possible to add alternative
>>>> download sources. How can I do this? This didn't work:
>>>>
>>>> diff --git a/source-builder/config/gcc-9.cfg
>>>> b/source-builder/config/gcc-9.cfg
>>>> index f8cf69b..1d7c716 100644
>>>> --- a/source-builder/config/gcc-9.cfg
>>>> +++ b/source-builder/config/gcc-9.cfg
>>>> @@ -21,4 +21,8 @@
>>>>    %source set gmp https://ftp.gnu.org/gnu/gmp/gmp-%{gmp_version}.tar.bz2
>>>>    %source set mpfr https://ftp.gnu.org/gnu/mpfr/mpfr-%{mpfr_version}.tar.bz2
>>>>
>>>> +%source set mpc
>>>> https://ftp.mpi-inf.mpg.de/pub/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/infrastructure/mpc-%{mpc_version}.tar.gz
>>>> +%source set gmp
>>>> https://ftp.mpi-inf.mpg.de/pub/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/infrastructure/gmp-%{gmp_version}.tar.bz2
>>>> +%source set mpfr
>>>> https://ftp.mpi-inf.mpg.de/pub/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/infrastructure/mpfr-%{mpfr_version}.tar.bz2
>>>> +
>>>>    %include %{_configdir}/gcc-common-1.cfg
>>>
>>> This would be Chris' department. Sorry
> 
> I would update the `%source` keyword to accept:
> 
> %source mirror mpc 1 https://ftp.mpi-inf.mpg.de/../mpc-%{mpc_version}.tar.gz
> 
> where `1` is an integer priority and 1 is highest. The code is here:
> 
> https://git.rtems.org/rtems-source-builder/tree/source-builder/sb/sources.py#n55
> 
> There is no such thing as a list in the macros so I suspect you would need to
> dereference the source where the results of `_make_key` would reference another
> series of macro keys that are the mirrors.
> 
> Do we want to start maintaining lists of mirrors in RSB configurations? I am
> undecided. As developers we do not notice the online status due to the RSB
> cache. For sites and users would deployment be a better long term solution?

Thanks for the hints. I added a ticket for this:

https://devel.rtems.org/ticket/4573

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