git-grep.shon commit git-var: constness and globalness cleanup. (c7d77da)
   1#!/bin/sh
   2#
   3# Copyright (c) Linus Torvalds, 2005
   4#
   5
   6pattern=
   7flags=()
   8git_flags=()
   9while : ; do
  10        case "$1" in
  11        --cached|--deleted|--others|--killed|\
  12        --ignored|--exclude=*|\
  13        --exclude-from=*|\--exclude-per-directory=*)
  14                git_flags=("${git_flags[@]}" "$1")
  15                ;;
  16        -e)
  17                pattern="$2"
  18                shift
  19                ;;
  20        -A|-B|-C|-D|-d|-f|-m)
  21                flags=("${flags[@]}" "$1" "$2")
  22                shift
  23                ;;
  24        --)
  25                # The rest are git-ls-files paths (or flags)
  26                shift
  27                break
  28                ;;
  29        -*)
  30                flags=("${flags[@]}" "$1")
  31                ;;
  32        *)
  33                if [ -z "$pattern" ]; then
  34                        pattern="$1"
  35                        shift
  36                fi
  37                break
  38                ;;
  39        esac
  40        shift
  41done
  42[ "$pattern" ] || {
  43        echo >&2 "usage: 'git grep <pattern> [pathspec*]'"
  44        exit 1
  45}
  46git-ls-files -z "${git_flags[@]}" "$@" |
  47        xargs -0 grep "${flags[@]}" -e "$pattern"