File indexing completed on 2024-04-21 05:42:00

 #!/bin/sh
 
 # Copyright 2004 Ben Reser <ben@reser.org>
 # Licensed under the terms subversion ships under or GPLv2.
 
 # Useful for greping in a subversion working copy.  
 # Essentially it behaves the same way your grep command does (in fact it
 # ultimately calls the grep command on your path) with a few exceptions.
 # Ignores the subversion admin directories (.svn) and vi(m) backup files.
 # Recursive is always on with or without -r.
 # Always print filename and line numbers.
 # Ignores binary files.
 # If no path is given the current working directory is searched not stdin.
 # Other than that it will take any parameter or pattern your standard grep
 # does.
 # 
 # This script requires GNU findutils and by default GNU grep (though that
 # can be changed with environment variables).
 # 
 # There are three environment variables you can set that modify the default
 # behavior:
 #
 # WCGREP_GREP      Controls what command is used for the grep command.
 #                  If unset or null wcgrep will check if ggrep (GNU grep)
 #                  is available and use it; if "ggrep" could not be found
 #                  in the path, "grep" will be used.
 # WCGREP_GREPARGS  Controls what arguments are always passed to the grep
 #                  command before the arguments given on the command line.
 #                  If unset or null it defaults to -HnI (always print file
 #                  names, line numbers and ignore binary files).  If you wish
 #                  to set no default args set the variable to a space (" ").
 # WCGREP_IGNORE    Controls what files are ignored by the grep command.
 #                  This is a regex that is passed to the find command with
 #                  -regex so see find's man page for details.  If unset or
 #                  null defaults to '.*~$\|.*/\.svn\(/\|$\)', which will
 #                  ignore vim backup files and subversion admin dirs.
 
 
 grepargs=
 pattern=
 
 # When loop completes, $@ should contain only list of paths to traverse.
 # If empty, set it to "." for compatibility (path list is not optional everywhere).
 # This way we can use "$@" feature when calling find(1).
 #
 # XXX The grepargs handling is broken, unlike the handling of path arguments.
 
 usage() {
     echo "usage: $(basename \"$0\") [grep-argument [...] [--]] pattern" >&2
     echo "       [path ...]" >&2
     exit 1
 }
 
 while [ $# -gt 0 ]; do
     if [ X"$1" = X-- ]; then
         grepargs="$grepargs $1"
         pattern="$2"
         shift 2
         break
     elif [ X"${1#-}" = X"$1" ]; then
         pattern="$1"
         shift
         break
     else
         grepargs="$grepargs $1"
     fi  
     shift
 done
 test -z "$pattern" && usage
 if [ $# -eq 0 ]; then
         set -- .
 fi
 
 WCGREP_IGNORE=${WCGREP_IGNORE:-'.*~$\|.*/\.git/.*\|.*/\.svn\(/\|$\)'}
 WCGREP_GREPARGS="${WCGREP_GREPARGS:--HnI}"
 
 # Some OSes have GNU tools with "g" prefix, try that first
 # TODO: check if:
 #  a) this tool is still needed;
 #  b) it is okay to break backward compatibility in future for
 #     portability reasons (avoid GNU toolchain dependency).
 
 WCGREP_GREP="${WCGREP_GREP:-$(command -v ggrep)}"
 WCGREP_GREP="${WCGREP_GREP:-grep}"
 
 WCGREP_FIND="$(command -v gfind)"
 WCGREP_FIND="${WCGREP_FIND:-find}"
 
 ${WCGREP_FIND} "$@" -regex "${WCGREP_IGNORE}" -prune -o -type f -print0 | \
     xargs -r0 ${WCGREP_GREP} ${WCGREP_GREPARGS} $grepargs "$pattern"