Re: [Qemu-devel] [PATCH v2 1/4] build: allow setting a custom GIT binary for transparent proxying

["Daniel P. Berrange" <berrange@redhat.com>]

On Mon, Oct 30, 2017 at 10:49:01AM +1100, Alexey Kardashevskiy wrote:
> On 30/10/17 03:29, Daniel P. Berrange wrote:
> > On Mon, Oct 30, 2017 at 01:08:56AM +1100, Alexey Kardashevskiy wrote:
> >>
> >> I run ./scripts/git-submodule.sh on a server (where source directory is
> >> writeable), them "rm .git-submodule-status", then run "Makefile" on a build
> >> machine (which has the source directory mounted as read-only). I basically
> >> recreate the situation where I was when I just discovered this brand new
> >> ./scripts/git-submodule.sh.
> > 
> > Don't rm the .git-submodule-status. That means 'make' thinks the modules
> > are out of date.
> > 
> > Just run 'scripts/git-submodules.sh ...mods..' on the writable source
> > dir, and then run 'make' on the build machine.
> > 
> >> I know that now, all I am asking is an error message to print exact command
> >> to run...
> > 
> > If you hadn't deleted the .git-submodule-status, it would have worked fine.
> 
> No.
> 
> I do this on a server:
> 
> [vpl1 qemu]$ git co v2.10.0
> At this point no .git-submodule-status is expected/required/exist.
> 
> [vpl1 qemu]$ ssh aikhostos2 make -C /home/aik/pbuild/qemu-aikhostos2-ppc64/
> -j24
> 
> Configure succeeds, compiles just fine, it has been working like this for
> years.
> 
> 
> Now:
> 
> [vpl1 qemu]$ git co git-submodule  (this is your stuff)
> [vpl1 qemu]$ ssh aikhostos2 make -C /home/aik/pbuild/qemu-aikhostos2-ppc64/
> -j24
> touch: cannot touch ‘.git-submodule-status’: Read-only file system
> make: Entering directory `/home/aik/pbuild/qemu-aikhostos2-ppc64'
>   GEN     ppc64-softmmu/config-devices.mak.tmp
> [...]
> 
> ./scripts/git-submodule.sh: line 74: .git-submodule-status: Read-only file
> system
> ./scripts/git-submodule.sh: failed to save git submodule status
> make: *** [git-submodule-update] Error 1

Oh I see, the git submodules list is empty because you have a previous
built source tree, so its shortcircuiting the extra check I added. Tihs
is easy enough to address


Regards,
Daniel
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