find-text: Bash script to find text or regex in a given path with context display, and omitting temp folders

find-text

#!/usr/bin/env bash
#
# find-text: Find text or regex in a given path with context display,
# and omitting temp folders.
#

if [ "$1" == "-h" -o "$1" == "--help" ]
then
  cat >&2 <<-'EOF'
	find-text: find text or regex in a given path with context display,
	           and omitting temp folders.
	
	The text (literal or regex expressions) is shown along with the path
	and up to 4 surrounding lines, or `-C LINES` (the `-C` parameter
	is optional and must be the last one).

	Usage: find-text LOCATION PATTERN EXPRESSION [-C NUMLINES]
	
	Usage example:

	  - Find a JS class "Promotion" that extends the class Component:

	    $ find-text . "*.js" "class Promotion .+Component"
	    
	  - Find at ~/.config/ any file that contains a var "foo" with the
	    value "bar", and show up to 8 surrounding lines:

	    $ find-text ~/.config/ '*' "foo.*=.*bar" -C 8

	  - Files with ".ts" extension, but without the ".spec" prefix:

	    $ find-text . '*[!.spec].ts' "\.query\(\)"

	WARNING: use quoted patterns for the filename (using " or '),
	         eg. "*.ext", otherwise the willcards characters *?[] will
	         wrong interpreted raising an error or wrong results.
	EOF
  exit
fi

if [ "$#" -lt 3 -o  "$#" -gt 5 ]
then
	echo "find-text: invalid arguments, 3 or 5 required, got $#."
	echo "Try 'find-text --help' for more information."
	exit -1
fi

LOCATION="$1"
PATTERN="$2"
EXPRESSION="$3"

if [ "$4" == "-C" ]
then
	if [ "$#" -ne 5 ]
	then
		echo "find-text: option requires an argument -- 'C'"
		echo "Try 'find-text --help' for more information."
		exit -1
	fi
	LINES="$5"
else
	LINES="4"
fi

find "$LOCATION" -name "$PATTERN" -type f \
	! -path '*/node_modules*/*' ! -path '*/.git/*' ! -path '*/.terraform/*' \
	! -path '*/build/*' ! -path '*/target/*' ! -path '*/dist/*' ! -path '*/lib/*' \
	! -path '*/temp/*' ! -path '*/tmp/*' \
	! -path '*/.venv*/*' ! -path '*/.env*/*' ! -path '*/venv*/*' ! -path '*/env*/*' \
	! -path '*/__pycache__/*' ! -path '*/*.egg-info/*' \
	! -path '*.bak' \
	-exec egrep -Hn --color -C "$LINES" -e "$EXPRESSION" {} \;