/useful/trunk-1

#!/usr/bin/env bash

####

# FILE NAME useful.inc.sh

# 

# PURPOSE

#   This file provides usefule bash libary functions.

####

# Add the following to your script to be able to include it:

#     __SCRIPT_ROOT=$(dirname $(readlink -f $0))

#     source $__SCRIPT_ROOT/useful.inc.sh

####

####

# FUNCTION __silent

#

# PURPOSE

#   Silent a run command.

#

# ARGUMENTS

#   A command and it's arguments.

#

# RETURNS

#   Exit code of command.

#

####

function __silent () {

  $@ >> /dev/null 2>&1

  return $?

}

####

# FUNCTION __find_tool

#

# PURPOSE

#   checks if a tool (progam) exists.

#

# NOTE

#   You need to specify "__SANITY=true" among your globals.

####

function __find_tool () {

  __silent which $1

  if [[ $? > 0 ]]; then

    echo "    Can't find tool \"${1}\"."

    __SANITY=false

  fi

}