bin/ack-wrapper

   1 #!/bin/sh
   2 # Wrapper around 'ack' to crawl all directories from `pwd` to / (or $HOME)
   3 # looking for a "local" .ackrc file. Useful for setting project-level
   4 # --ignore-dir settings.
   5
   6 # Search for "local" .ackrc file in CWD or any parents
   7 HOME=~
   8 ackrc=""
   9 match=""
  10 dir=$(pwd)
  11 while [ "${dir}" != "/" -a "${match}" = "" ]; do
  12     if [ -e "${dir}/.ackrc" ]; then
  13         if [ "${dir}" != "${HOME}" ]; then
  14             match=1
  15             echo "(Include: ${dir}/.ackrc)"
  16             ackrc=$(egrep "^[^#]" "${dir}/.ackrc" | tr '\n' ' ')
  17         else
  18             match=0
  19         fi
  20     else
  21         dir=$(dirname "${dir}")
  22     fi
  23 done
  24
  25 # Add quote-wrapping for any additional args to ensure proper passing to
  26 # real 'ack'.
  27 for arg in "$@"; do
  28     if [ -z "${ackrc}" ]; then
  29         ackrc="'${arg}'"
  30     else
  31         ackrc="${ackrc} '${arg}'"
  32     fi
  33 done
  34
  35 # Build command to eval
  36 cmd="command ack ${ackrc}"
  37 if [ ! -t 0 ]; then
  38     # If stdin is a pipe, use cat to redirect stdin to stdout and pipe
  39     # that data into ack.
  40     cmd="cat | ${cmd}"
  41 fi
  42
  43 # Eval the final command
  44 eval "${cmd}"