#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2019-2022 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
#     dirToString
#
# Usage
#     dirToString path/to/file
#
# Description
#     Converts a directory path into a camelCase string.
#     Leading [./] characters are stripped by default.
#
#     For example,
#         input:  dir1/dir2/dir3
#         output: dir1Dir2Dir3
#
#------------------------------------------------------------------------------
usage() {
    exec 1>&2
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

Usage: ${0##*/} [OPTION] dir

options:
  -no-strip         Do not ignore leading [./] characters
  -strip            Ignore leading [./] characters (default)
  -h, -help         Print the usage

Converts a directory path into a camelCase string

USAGE
    exit 1
}


#------------------------------------------------------------------------------
# Parse arguments and options
#------------------------------------------------------------------------------

optStrip=true

while [ "$#" -gt 0 ]
do
    case "$1" in
    ('') ;;
    (- | --) shift; break ;;  # Stop option parsing

    # Print help
    (-h | -help*)
        usage
        ;;
    (-s | -strip)
        optStrip=true
        ;;
    (-no-strip)
        unset optStrip
        ;;
    (*)
        break
        ;;
    esac
    shift
done

if [ -z "$optStrip" ]
then
    dirName="$1"
else
    # Ignore any leading ./ characters
    dirName="$(echo ""$1"" | sed -e 's@^[./]*@@')"
fi

dirName=$(echo "$dirName" | \
awk 'BEGIN{FS="";RS="/";ORS=""} {if (FNR>1) {$0=toupper(substr($0,1,1))substr($0,2)}} 1')

echo "$dirName"

#------------------------------------------------------------------------------