bash-lib-misc

#!/bin/bash
#
# Misc bash utility functions
#
# Dependency: bash-lib-logging
#

source lib/bash-lib-logging

__initMiscLibrary()
{
	(( ${__MISC_LIB_INITIALIZED__} )) && return
	readonly __MISC_LIB_INITIALIZED__=1 
}

push_dir() 
{
	local directoryName=${1}
	if [ -z "${directoryName}" ]; then
		abort "Direcotry name not provide."
	fi
	if [ ! -d "${directoryName}" ]; then
		abort "Direcotry doesn't exist."
	fi
	pushd ${directoryName} > /dev/null 2>&1
	if (( $? )); then
		abort "Failed to push directory [${directoryName}] on to stack."
	fi
}

pop_dir()
{
	popd > /dev/null 2>&1
	if (( $? )); then
		abort "Possible coding error."
	fi
}



createDirectory()
{
	local directoryName=${1}
	if [ -z "${directoryName}" ]; then
		abort "Direcotry name not provide."
	fi
	if [ ! -d "${directoryName}" ]; then
		mkdir -p ${directoryName}
		if (( $? )); then
			abort "Failed to create directory [${directoryName}]"
		fi
	fi
}

clearDirectory()
{
	local directoryName=${1}
	if [ -z "${directoryName}" ]; then
		abort "Direcotry name not provide."
	fi
	if [ ! -d "${directoryName}" ]; then
		abort "Direcotry doesn't exist."
	fi
	if [ -d "${directoryName}" ]; then
		if (( $(ls -A ${WRK_DIR} | wc -l) > 0 )); then
			log "Work directory is not empty.  Clearing it..."
			push_dir ${directoryName} 
			rm -rf ./*
			local error=${?}
			pop_dir 
			if (( ${error} )); then
				abort "Failed to clear directory [${directoryName}]"
			fi
		fi	
	else
		createDirectory ${directoryName}
	fi	
}

#
# NOTE: doesn't work right...
#
getFullPath()
{
	local file=${1}
	local fullPath=""
	if [ -z "${file}" ]; then
		abort "Fire/directory name not provide."
	fi	
	if [ -d "${file}" ]; then
		pushd "${file}" > /dev/null
		fullPath=$(pwd)
		popd
	elif [ -f "${file}" ]; then
		pushd "$(dirname ${file})" > /dev/null
		fullPath="$(pwd)/$(basename ${file})"
		popd
	else
		abort "File/directory [${file}] doesn't exist."
	fi
	echo "${fullPath}"
}

#
# Get host's IP address
#
getHostIP()
{
	case "$OSTYPE" in
		linux-gnu) ip route get 8.8.8.8  | awk '{print $7}' ;;
		darwin*) ipconfig getifaddr $(route get 8.8.8.8 | awk '/interface: / {print $2; }') ;;
		*) echo "Unsupported OS: $OSTYPE.  Unable to get host IP address" ;;
	esac
}

__initMiscLibrary

#::END::