[GSoC] Update: Week 4

[GSoC] Update: Week 4

[Prathamesh Chavan]

SUMMARY OF MY PROJECT:

Git submodule subcommands are currently implemented by using shell script
'git-submodule.sh'. There are several reasons why we'll prefer not to
use the shell script. My project intends to convert the subcommands into
C code, thus making them builtins. This will increase Git's portability
and hence the efficiency of working with the git-submodule commands.
Link to the complete proposal: [1]

Mentors:
Stefan Beller <sbeller@google.com>
Christian Couder <christian.couder@gmail.com>

UPDATES:

Following are the updates about my ongoing project:

1. sync and status: The improvisions for the ported functions were
   implemented. I'm planning on floating a series patches,
   containing all the ported functions put together, but
   recently encountered some issue with the get_submodule_displaypath
   function, I haven't yet posted an updated version of the above
   ported function.The issues are now resolved. Hence, soon I plan
   on posting their updated versions.

2. deinit: As planned for the week, this submodule subcommand is
   ported from shell to C. But still, there are some tests, the
   ported functions are failing. Along with the updated versions
   of 'status' and 'sync', I'll also be posting a WIP patch
   about this subcommand ported.

3. summary: Porting of this subcommand is still underway. I choose
   to do the porting of this subcommand after deinit as it was
   smaller and hence porting this subcommand is still left.

4. count_slashes: A function was introduced in dir.h for reducing
   the code-duplication as similar functions exist in apply.c and
   builtin/show-branch.c

PLAN FOR WEEK-5 (13 June 2017 to 19 June 2017):

1. sync and status: Since the changes are ready, I plan to post the
   complete series of the updated version soon as a single series of
   patches.

2. summary: As this is still underway, I'll be finishing this submodule
   subcommand in the following week.

3. foreach: To unblock the conversion of this submodule subcommand,
   I'll be focusing on porting the original cmd_foreach, and
   will not be including the BUG-FIX patch here.
   An additional NEEDSWORK comment will be added to the ported function,
   stating the reported bug, and not resolving the bug in this patch
   series.

4. deinit: As mentioned earlier, there is still some debugging left for
   the ported functions. I plan to debug them and discuss the patch
   for further improvisions this week.

[1]: https://docs.google.com/document/d/1krxVLooWl--75Pot3dazhfygR3wCUUWZWzTXtK1L-xU/

Thanks,
Prathamesh Chavan