Re: [bitbake-devel] [oe-core][PATCH 1/2] devtools: Initial recipe for repo 2.17.3

[Jasper Orschulko <Jasper.Orschulko@iris-sensing.com>]

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Hi Peter,

> How do you avoid the repo wrapper fetching the repo source itself 
> and instead fetch it using the bitbake fetcher? I have seen nothing
> to that extent in the patches so far.

we don't. This recipe only installs the repo wrapper. The source code
is downloaded and installed when running `repo init`.

However, in our opinion this is not an issue. When installing repo as a
package to a target, this is the expected behaviour. The target would
only have the repo wrapper installed, just like on any other linux
distrobution. The actual usage of repo on the target is decoupled from
the bitbake build process.

When using the repo fetcher, the repo source is fetched during the
do_fetch stage by running `repo init` (when SRCREV = AUTOREV, changes
to the recipe or no previous sources available in DL_DIR). By executing
this within the "runfetchcmd" function, this also works with the usual
network features bitbake provides, e.g. proxy.
If the recipe has not changed and sources are already available from a
previous run, repo will not be rerun. As such, reproducing a build
offline is also possible.

- -- 
With best regards

Jasper Orschulko
DevOps Engineer

Tel. +49 30 58 58 14 265
Fax +49 30 58 58 14 999
Jasper.Orschulko@iris-sensing.com

• • • • • • • • • • • • • • • • • • • • • • • • • •

iris-GmbH
infrared & intelligent sensors
Schnellerstraße 1-5 | 12439 Berlin

https://iris-sensing.com/





On Wed, 2021-11-10 at 23:55 +0000, Peter Kjellerstedt wrote:
> > -----Original Message-----
> > From: bitbake-devel@lists.openembedded.org <bitbake-
> > devel@lists.openembedded.org> On Behalf Of Jasper Orschulko
> > Sent: den 9 november 2021 12:26
> > To: richard.purdie@linuxfoundation.org; openembedded-
> > core@lists.openembedded.org; kweihmann@outlook.com;
> > jasper@fancydomain.eu
> > Cc: martin@mko.dev; Daniel.Baumgart@iris-sensing.net; bitbake-
> > devel@lists.openembedded.org
> > Subject: Re: [bitbake-devel] [oe-core][PATCH 1/2] devtools: Initial
> > recipe
> > for repo 2.17.3
> > 
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> > Hash: SHA256
> > 
> > Hi Richard,
> > 
> > I think our implementation of the repo fetcher checks the (what I
> > believe to be) most relevant parts of your checklist (thanks for the
> > write-up). Martin, please corrent me if I'm missing something:
> > 
> > > a) network access for sources is only expected to happen in the
> > > do_fetch step.
> > > This is not enforced or tested but is required so that we can:
> > > 
> > >  i) audit the sources used (i.e. for license/manifest reasons)
> > >  ii) support offline builds with a suitable cache
> > >  iii) allow work to continue even with downtime upstream
> > >  iv) allow for changes upstream in incompatible ways
> > >  v) allow rebuilding of the software in X years time
> > 
> > check
> > 
> > > b) network access is not expected in do_unpack
> > 
> > check
> 
> How do you avoid the repo wrapper fetching the repo source itself 
> and instead fetch it using the bitbake fetcher? I have seen nothing 
> to that extent in the patches so far.
> 
> //Peter
> 
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