[bitbake-devel] [PATCH] BB_NO_NETWORK: Fallback to local source for git lsremote

[Khem Raj]

> On Aug 8, 2016, at 4:24 AM, Jérémy Rosen <jeremy.rosen at smile.fr> wrote:
> 
> 
> On 08/08/2016 11:55, Richard Purdie wrote:
>> On Mon, 2016-08-08 at 08:34 +0000, Tobias Hagelborn wrote:
>>> Change made to enable building offline also with git tag references
>>> in SRC_URI.
>>> 
>>> If BB_NO_NETWORK is set, fallback to search for tags and revisions
>>> in local DL_DIR / GITDIR in order to avoid network access.
>> I'm not sure I agree with this since you'd get different build results
>> depending on whether BB_NO_NETWORK is set or not.
>> 
>> I think if BB_NO_NETWORK is set, its reasonable to assume that the
>> configuration should be locked down and that BB_NO_NETWORK should not
>> have other side effects like this.
>> 
>> It would also make it very hard to detect unlocked configurations
>> during testing which currently are quite easily identified.
> 
> To be honest, this is a real world problem I have on a regular basis...
> 
> The problem we have is that our customers want to keep an archive for (very) long term support and they test offline mode.
> 
> This problem means that we have to set all our SRC_URI to git SHA instead of the much more readable and easy to check git tags.
> 
> 
> you think to assume that a reference is a branch, but the real-life problem is when reference is a tag. Tag don't move so this is
> a case of locked configuration, but i'm not sure how to handle it.
> 
> Is there a way to have the best of both world somehow ?

Don’t use tags instead rely on SHA numbers in SRCREV and use
BB_GENERATE_MIRROR_TARBALLS like mentioned here

https://wiki.yoctoproject.org/wiki/How_do_I#Q:_How_do_I_create_my_own_source_download_mirror_.3F

tags are floating types in git, you can not use them reliably.
You may tool in a method to automate updating the
recipes SRCREVs if you dont want to do it by hand.

That should help hopefully
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