Re: [Qemu-devel] [PATCH v3 0/5] Various improvements/bugfixes to submodule handling

[Alexey Kardashevskiy <aik@ozlabs.ru>]

On 04/11/17 02:33, Daniel P. Berrange wrote:
> This short series of patches improves the reliability of the submodule
> handling to cope with various dev env scenarios that have since emerged
> 
>   v2: https://lists.gnu.org/archive/html/qemu-devel/2017-10/msg06272.html
> 
> Changed in v3:
> 
>  - Avoid use of mktemp
>  - Use '=' instead of '==' (bashism) in conditional tests
>  - Fix problem with short-circuiting for empty submodule list
>  - Ensure help message is displayed on all errors
> 
> Daniel P. Berrange (5):
>   build: allow setting a custom GIT binary for transparent proxying
>   build: don't create temporary files in source dir
>   build: allow automatic git submodule updates to be disabled
>   build: don't fail if given a git submodule which does not exist
>   build: delay check for empty git submodule list
> 
>  Makefile                 | 15 ++++++++--
>  configure                | 12 ++++++++
>  scripts/git-submodule.sh | 72 ++++++++++++++++++++++++++++++++++++++----------
>  3 files changed, 83 insertions(+), 16 deletions(-)


It is getting more complicated.

So, same setup,
git checkout v2.10.0
./configure --target-list=ppc64-softmmu
make

All good.
Then:

git checkout git-submodule (upstream + this patchset)
./configure --target-list=ppc64-softmmu

I see an error and educational page about --disable-git-update, good.
./configure --target-list=ppc64-softmmu --disable-git-update
make

Now I get:

GIT submodule checkout is out of date. Please run
  scripts/git-submodule.sh update ui/keycodemapdb dtc capstone
from the source directory checkout /home/aik/p/qemu

Good, as I wanted.
I do this on the server:
scripts/git-submodule.sh update ui/keycodemapdb dtc capstone

and repeat "make" on the build machine but get the very same error. Then I
add "set -x" to scripts/git-submodule.sh and see:

+ substat=.git-submodule-status
+ command=status
+ shift
+ maybe_modules=ui/keycodemapdb dtc capstone
+ test -z git
+ modules=
+ git submodule status ui/keycodemapdb
+ test 0 = 0
+ modules= ui/keycodemapdb
+ git submodule status dtc
+ test 0 = 0
+ modules= ui/keycodemapdb dtc
+ git submodule status capstone
+ test 0 = 0
+ modules= ui/keycodemapdb dtc capstone
+ test -n ui/keycodemapdb dtc capstone
+ test -e .git
+ test -z ui/keycodemapdb dtc capstone
+ test -f .git-submodule-status
+ git submodule status ui/keycodemapdb dtc capstone
+ CURSTATUS=-22ead3e0bfdb87516656453336160e0a37b066bf capstone
 558cd81bdd432769b59bff01240c44f82cfb1a9d dtc (v1.4.4)
 10739aa26051a5d49d88132604539d3ed085e72e ui/keycodemapdb (heads/master)

+ cat .git-submodule-status
+ OLDSTATUS= 558cd81bdd432769b59bff01240c44f82cfb1a9d dtc (v1.4.4)
 10739aa26051a5d49d88132604539d3ed085e72e ui/keycodemapdb (heads/master)

+ test -22ead3e0bfdb87516656453336160e0a37b066bf capstone
 558cd81bdd432769b59bff01240c44f82cfb1a9d dtc (v1.4.4)
 10739aa26051a5d49d88132604539d3ed085e72e ui/keycodemapdb (heads/master) =
558cd81bdd432769b59bff01240c44f82cfb1a9d dtc (v1.4.4)
 10739aa26051a5d49d88132604539d3ed085e72e ui/keycodemapdb (heads/master)

+ exit 1


What is that new module - capstone - about? It is not in the status file:

[vpl1 qemu]$ cat .git-submodule-status
 558cd81bdd432769b59bff01240c44f82cfb1a9d dtc (v1.4.4)
 10739aa26051a5d49d88132604539d3ed085e72e ui/keycodemapdb (heads/master)



-- 
Alexey