rr

#!/bin/bash

# Isolate the command name
CommandName=$1
if [ -z "$CommandName" ]; then
    echo Root Resolve
    echo Usage: rr \<command\> [options]
    exit 1
fi

# Shift the command name out of the options list for forwarding
shift

# Start in the current directory and search parent folders for rr.cfg
ConfigPath=`pwd`
while [[ $ConfigPath != / ]];
do
    ConfigFilename=$ConfigPath/rr.cfg
    if [ -f "$ConfigFilename" ]; then
        break
    fi
    ConfigPath="$(readlink -f "$ConfigPath"/..)"
done

# Locate the root config file
if ! [ -f "$ConfigFilename" ]; then
    echo ERROR: Can\'t find \'rr.cfg\'
    exit 1
fi

# Parse config file potential command paths
while read -r line; do

    # Swap \ with /, remove newline and append to the root path
    line="${line//\\/\/}"
    line=`echo $line | tr -d '\r'`
    CommandPath=$ConfigPath/$line

    # Combine tentative command path, command name and all possible extensions to locate the command
    Extensions=" .sh .bat .cmd .exe"
    for extension in $Extensions; do
        Command=$CommandPath/$CommandName$extension
        if [ -f "$Command" ]; then
            $Command "$@"
            exit $?
        fi
    done

done <$ConfigFilename

echo Command \'$CommandName\' not found.