#!/bin/sh

setvar USAGE = ''[-p] [--max-count=<n>] [<since>..<limit>] [--pretty=<format>] [-m] [git-diff-tree options] [git-rev-list options]''
setvar SUBDIRECTORY_OK = ''Yes''
source git-sh-setup

setvar diff_tree_flags = $(git-rev-parse --sq --no-revs --flags "$@") || exit
case (0) {
*whatchanged {
	setvar count = ''
	test -z $diff_tree_flags &&
		setvar diff_tree_flags = $(git config --get whatchanged.difftree)
	setvar diff_tree_default_flags = ''-c -M --abbrev'' }
*show {
	setvar count = '-n1'
	test -z $diff_tree_flags &&
		setvar diff_tree_flags = $(git config --get show.difftree)
	setvar diff_tree_default_flags = ''--cc --always'' }
}
test -z $diff_tree_flags &&
	setvar diff_tree_flags = "$diff_tree_default_flags"

setvar rev_list_args = $(git-rev-parse --sq --default HEAD --revs-only "$@") &&
setvar diff_tree_args = $(git-rev-parse --sq --no-revs --no-flags "$@") &&

eval "git-rev-list $count $rev_list_args" |
eval "git-diff-tree --stdin --pretty -r $diff_tree_flags $diff_tree_args"" |
LESS="$LESS -S"" ${PAGER:-less}