#!/bin/sh

set -e
set -u

### Global variables

PROG=$(basename "$0")
USAGE="Usage: $PROG TIME
Example: $PROG '2 weeks ago'"

### Functions

fatal() {
   echo "$*" >&2
   exit 2
}

display_usage_and_error_out() {
   fatal "$USAGE"
}

### Main

[ $# -eq 1 ] || display_usage_and_error_out
TIME="$1"

git diff "master@{$TIME}..master" --stat=200 -- wiki/src \
  | grep --color=never -E '\.(mdwn|html)\s+'                         \
  | grep -E -v '^\s+wiki/src/(blueprint|contribute)/'