[PATCH 0/7] pickaxe: plug memory leaks, deduplicate code

Hello,

this series aims to clean up the code for pickaxe (-S/-G). The first three patches plug minor to medium memory leaks.

	[PATCH 1/7] pickaxe: plug diff filespec leak with empty needle
	[PATCH 2/7] pickaxe: plug regex leak
	[PATCH 3/7] pickaxe: plug regex/kws leak

The next one moves a duplicate if/else cascade into its own helper function:

	[PATCH 4/7] pickaxe: factor out has_changes

The remainder unifies the code for pickaxe (-S) and log grep (-G).

	[PATCH 5/7] pickaxe: pass diff_options to contains and has_changes
	[PATCH 6/7] pickaxe: give diff_grep the same signature as has_changes
	[PATCH 7/7] pickaxe: factor out pickaxe

As a result the code should be shorter and easier to maintain.

 diffcore-pickaxe.c |  178 ++++++++++++++++++++-------------------------------
 1 files changed, 70 insertions(+), 108 deletions(-)