tools/srepl

   1 #!/bin/sh
   2
   3 usage()
   4 {
   5         echo "Usage:"
   6         echo
   7         echo "  $0 search_pattern [-- <pathspec> ]"
   8         echo "  $0 search_pattern replacement [-- <pathspec> ]"
   9         echo
  10         echo "Pattern should be a basic regexp as accepted by grep and sed."
  11         echo "For information on pathspec syntax, see git documentation."
  12         echo
  13         exit 1
  14 }
  15
  16 check_unstaged()
  17 {
  18         if ( git status --porcelain | grep '^.[^ ]' ); then
  19                 echo "You have unstaged changes in your tree."
  20                 echo "Either stage them with 'git add', commit them,"
  21                 echo "or discard them with 'git checkout -- .'"
  22                 exit 1
  23         fi
  24 }
  25
  26 _slashify()
  27 {
  28         # Some shells have shoddy handling of backslashes in echo.
  29         printf '%s\n' "$1" | sed 's/\([^\\]\)\//\1\\\//g'
  30 }
  31
  32 if [ "$1" = "--" ]; then
  33         usage
  34 elif [ "$1" = "-d" ]; then
  35         check_unstaged
  36
  37         pattern=`_slashify "$2"`
  38         shift
  39         shift
  40         git grep -I -l "$pattern" "$@" | xargs sed -i "/$pattern/d"
  41
  42 elif [ "$#" -eq 1 ]  || [ "$2" = "--" ]; then
  43         pattern=`_slashify "$1"`
  44         shift
  45         git grep -I -n "$pattern" "$@"
  46 elif [ "$#" -eq 2 ] || [ "$3" = "--" ]; then
  47         check_unstaged
  48
  49         pattern=`_slashify "$1"`
  50         replacement=`_slashify "$2"`
  51         shift
  52         shift
  53         git grep -I -l "$pattern" "$@" | xargs sed -i "s/$pattern/$replacement/g"
  54 else
  55         usage
  56 fi