util-functions

# vim:filetype=zsh

### This is designed to be sourced from a parent script.
# Compatibility: bash 4+, zsh 5+
# Current features: shell exception reporting

if [ -n "$ZSH_VERSION" ]; then
    zmodload zsh/parameter
    function TRAPDEBUG() {
        LOCAL_OPTIONS=1
        set +o xtrace
        local IFS
        ERR_COMMAND="$ZSH_DEBUG_CMD"
        IFS=":" ERR_LINENO="${funcfiletrace[1][(w)2]}"
    }
    function TRAPERR() {
        local err=$?
        set +o xtrace
        echo "Error in ${funcfiletrace[1]}. '${ERR_COMMAND}' exited with status $err"
        echo ${funcfiletrace[@]}
        if [[ ${#funcfiletrace[@]} -gt 1 ]]; then
            for ((i=1;i<=${#funcfiletrace[@]};i++)); do
                echo "$((i - 1)): ${funcfiletrace[$i]} (${functrace[$i]})(...)"
            done
        fi
        echo "Exiting with status ${err}"
        exit $err
    }
    set -o KSH_ARRAYS # because arrays from 1 are silly
elif [ -n "$BASH_VERSION" ]; then
#bashish
    function errexit() {
        local err=$?
        set +o xtrace
        local code="${1:-1}"
        echo "Error in ${BASH_SOURCE[1]}:${BASH_LINENO[0]}. '${BASH_COMMAND}' exited with status $err"
        # Print out the stack trace described by $function_stack  
        if [ ${#FUNCNAME[@]} -gt 2 ]
        then
            echo "Call tree:"
            for ((i=1;i<${#FUNCNAME[@]};i++))
            do
                echo " $i: ${BASH_SOURCE[$i+1]}:${BASH_LINENO[$i]} ${FUNCNAME[$i]}(...)"
            done
        fi
        echo "Exiting with status ${code}"
        exit "${code}"
    }
    trap 'errexit' ERR
    set -o errtrace
else
    echo "Your shell, $SHELL, is probably not supported by these scripts. If it really is, go ahead and add detection code to util-functions."
    exit 1
fi