[edk2-devel] [ PATCH v2 1/2] Readme.md: add submodule policy and clone commands

[Leif Lindholm]

On Wed, Jul 10, 2019 at 05:08:32PM +0000, Kinney, Michael D wrote:
> Leif,
> 
> I think the following command has to be run from the git
> dir that the edk2 repo was cloned into.
> 	
> $ git submodule update --init
> 
> So I think the correct instructions would be:
> 
> $ git clone https://github.com/tianocore/edk2.git
> $ cd edk2
> $ git submodule update --init

I only said I reviewed it, not that the review was correct ;)

Yeah, good catch. I just mentally filtered out the clone bit.

> $ cd ..

Why would you want to leave? 

/
    Leif

> Mike
> 
> > -----Original Message-----
> > From: Leif Lindholm [mailto:leif.lindholm at linaro.org]
> > Sent: Wednesday, July 10, 2019 7:27 AM
> > To: Wang, Jian J <jian.j.wang at intel.com>
> > Cc: devel at edk2.groups.io; Kinney, Michael D
> > <michael.d.kinney at intel.com>; Gao, Liming
> > <liming.gao at intel.com>
> > Subject: Re: [ PATCH v2 1/2] Readme.md: add submodule
> > policy and clone commands
> > 
> > On Wed, Jul 10, 2019 at 02:09:54PM +0800, Jian J Wang
> > wrote:
> > > > v2: update wording per Leif's and others' comments
> > 
> > Please drop the above line - version comments can go
> > below the --- line, so they don't get included in the
> > commit message.
> > 
> > With that:
> > Reviewed-by: Leif Lindholm <leif.lindholm at linaro.org>
> > 
> > (although Liming had some further feedback)
> > 
> > > REF:
> > https://bugzilla.tianocore.org/show_bug.cgi?id=1910
> > >
> > > A section 'Submodules' is added to clarify the
> > submodule policy in
> > > edk2 repo. Git commands are also added to show the
> > correct way to
> > > clone submodule repos, in which '--recursive' is
> > removed because it's
> > > not needed but recommended in other document.
> > >
> > > Related commits:
> > > Openssl-1.1.1b upgrade:
> > acfb90911840c38a0beb9bcfe0065668244d2b4d
> > > berkeley-softfloat-3:
> > 3cc57695df5a6e8c65fb46b993836c315cabf49d
> > >
> > > Cc: Leif Lindholm <leif.lindholm at linaro.org>
> > > Cc: Michael D Kinney <michael.d.kinney at intel.com>
> > > Cc: Liming Gao <liming.gao at intel.com>
> > > Signed-off-by: Jian J Wang <jian.j.wang at intel.com>
> > > ---
> > >  Readme.md | 28 ++++++++++++++++++++++++++++
> > >  1 file changed, 28 insertions(+)
> > >
> > > diff --git a/Readme.md b/Readme.md
> > > index e564c6c09b..c475468655 100644
> > > --- a/Readme.md
> > > +++ b/Readme.md
> > > @@ -143,3 +143,31 @@ Signed-off-by: Contributor Name
> > <contributor at example.com>
> > >    the change.  Each line should be less than ~70
> > characters.
> > >  * `Signed-off-by` is the contributor's signature
> > identifying them
> > >    by their real/legal name and their email address.
> > > +
> > > +# Submodules
> > > +
> > > +As a general policy, submodule chain should be avoided
> > in EDK II repo
> > > +as possible as we can. Currently EDK II  contains two
> > submodules
> > > +
> > > +- CryptoPkg/Library/OpensslLib/openssl
> > > +- ArmPkg/Library/ArmSoftFloatLib/berkeley-softfloat-3
> > > +
> > > +The latter one is actually required by previous one.
> > It's inevitable
> > > +in openssl-1.1.1 (since stable201905) for floating
> > point parameter
> > > +conversion, but should be dropped once there's no such
> > need in future
> > > +release of openssl.
> > > +
> > > +To get a full, buildable EDK II repository, use
> > following two steps
> > > +of git command
> > > +
> > > +```
> > > +$ git clone https://github.com/tianocore/edk2.git
> > > +$ git submodule update --init> > +```
> > > +
> > > +Note: When cloning submodule repos, '--recursive'
> > option is not
> > > +recommended. EDK II itself will not use any
> > code/feature from
> > > +submodules in above submodules. So using '--recursive'
> > adds a
> > > +dependency on being able to reach servers we do not
> > actually want any
> > > +code from, as well as needlessly downloading code we
> > will not use.
> > > --
> > > 2.17.1.windows.2
> > >

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