[bitbake-devel] [RFC PATCH 0/5] Implement git shallow mirror tarball support

[Christopher Larson]

On Tue, Aug 18, 2015 at 1:45 AM, Martin Jansa <martin.jansa at gmail.com>
wrote:

> On Fri, Aug 14, 2015 at 08:57:17AM -0700, Christopher Larson wrote:
> > On Thu, Aug 13, 2015 at 4:46 PM, Christopher Larson <kergoth at gmail.com>
> > wrote:
> >
> > > From: Christopher Larson <chris_larson at mentor.com>
> > >
> > > Please review the following changes for suitability for inclusion. If
> you
> > > have
> > > any objections or suggestions for improvement, please respond to the
> > > patches. If
> > > you agree with the changes, please provide your Acked-by.
> > >
> > > This only implements support for shallow mirror tarballs, not shallow
> > > clones.
> > >
> > > The mirror tarball filename includes branch, revision, and depth. To
> > > enable,
> > > use the `BB_GIT_SHALLOW` variable, or `BB_GIT_SHALLOW_<name>` for
> specific
> > > URLs. This variable can hold either a clone depth (e.g. `1` to just get
> > > SRCREV), or a ref or commit, in which case we keep history up to that
> > > commit.
> > >
> > > The shallow support will not, at this time, function correctly for
> > > linux-yocto, due to its branching scheme & validation.
> > >
> > > Example:
> > >
> > >     BB_GIT_SHALLOW ?= "1"
> > >     BB_GIT_SHALLOW_pn-linux-yocto = ""
> > >     BB_GIT_SHALLOW_pn-linux-mel_mx6 = "v3.14"
> > >     BB_GIT_SHALLOW_pn-testrepo = "testbranch"
> > >
> > > This implementation will attempt to fetch a full mirror tarball if it
> was
> > > unable to fetch a shallow tarball. If `BB_GIT_SHALLOW` and
> > > `BB_GENERATE_MIRROR_TARBALLS` are enabled for a given recipe, a shallow
> > > tarball will be emitted.
>
> It would be nice to describe what this implementation does when there is
> some local git clone already (will it first try to update it with "git
> fetch"
> or download shallow tarball?)


In that case, I believe it will update the clone and use that, unless we
have a current tarball already downloaded, but I'll double check the logic
and get back to you.
-- 
Christopher Larson
kergoth at gmail dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Senior Software Engineer, Mentor Graphics
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