[WIP] [PATCH 0/4] Unifying git branch -l, git tag -l, and git for-each-ref

Hello All,

Just updating on my progress for my GSoC project on "Unifying git branch- l, git tag -l and git for-each-ref."

I have been going through the code for the above commands, I started off first with 'for-each-ref' because it seemed to be the most basic command of the three, I have been building the common library 'ref-filter' based on the requirements for 'for-each-ref', eventually I plan to merge 'tag -l' and 'branch -l' and extend its functionality.

The '--format' and '--sort' option provided by for-each-ref seemed to be the most fundamental and I plan on using this implementation and extending the option to 'tag -l' and 'branch -l'. So this left me with moving most of the code from 'for-each-ref' to 'ref-filter' and leaving 'for-each-ref' with nothing but the command call from the main git command.

This is still a WIP and hope to get some suggestions/feedback on my progress.