goto

#!/bin/bash -e
###############################################################################
#
# Script to grep + open a result in vim
#
# Daniel Prokesch <daniel@vmars.tuwien.ac.at>
#
###############################################################################



IGNORE=".git|.hg|.svn"


trap "cleanup" EXIT

function cleanup {
  test -f "$TMP" && rm "$TMP"
}


function display {
  while read NUM LOC TXT; do
    printf "\e[1;34m%6s  \e[0;36m%s\t\e[0m%s\n" "$NUM" "$LOC" "$TXT"
  done < $1 | less -FRSX
}

function vim_entry {
  vim $(awk 'NR=='$2'{print $2}' $1 | sed 's/:/ +/' )
}


SEARCH="${@?Go to what? - Usage: $(basename $0) <search_regex>}"

TMP=$(mktemp)
grep -rnwE --binary-files=without-match "$SEARCH" . | grep -vE "$IGNORE" | sed -e 's/:/ /2' -e 's/\\/\\\\/g'| nl > $TMP


MAX=$(wc -l < $TMP)
if [ $MAX -eq 0 ]; then
  # no match found
  echo "Nothing found."
elif [ $MAX -eq 1 ]; then
  # one match found
  vim_entry $TMP 1
else
  # more than one match found
  display $TMP
  read -ep "Entry: " ENTRY
  if [[ ! $ENTRY || ! $ENTRY =~ ^[0-9]+$ ]]; then
    # nothing or not a number
    echo "Abort."
    exit 1
  fi
  if [[ $ENTRY -ge 1 && $ENTRY -le $MAX ]]; then
    vim_entry $TMP $ENTRY
  else
    echo "Number out of range."
  fi
fi

exit 0