Opinionated code line count tool for Wikimedia code repo dirs

code_line_count.sh

#!/usr/bin/env bash
################################################################################
# Author: [email protected]
# License: Apache 2 <https://opensource.org/licenses/Apache-2.0>
# Description:
#   Opinionated code line count tool for code repo dirs
################################################################################
set -euo pipefail

# vars
readonly debug=0
readonly find_cmd='/usr/bin/find '
readonly line_count_cmd=' | xargs cat | wc -l '
code_dir='. '
file_types='-type f '
not_paths=\
'-not -path "*./.git*" '\
'-not -path "./.phan/*" '\
'-not -path "./package-lock.json" '\
'-not -path ".composer.lock" '

# process opts
for opt in "$@"; do
	case "$opt" in
		# Option: --path={path}
		--path=*)
		code_dir="${opt#*=}"
		;;
		# Option: --exts={.ext1,.ext2,.ext3}
		--exts=*)
		ext_types="${opt#*=}"
		or=''
        file_types="$file_types\("
		for i in ${ext_types//,/ }
			do file_types="$file_types$or -name \"*$i\" "
			or='-o'
		done
        file_types="$file_types\)"
		;;
		*)
		printf "unknown option: $opt\n" 1>&2
		printf "usage: script_name [--path={path}] [--exts={.ext1,.ext2,.ext3}]\n" 1>&2
		exit 1
		;;
	esac
done

# eval command
cmd="$find_cmd $code_dir $file_types $not_paths $line_count_cmd"
if [ $debug == 1 ]; then
	printf "$cmd\n"
else
	eval $cmd
fi