#!/bin/bash


# Print some helpful messages.
usage() {
    echo "Run bash-completion tests"
    echo
    echo "The 'tool' is determined automatically from filenames."
    echo "Unrecognized options are passed through to dejagnu by default."
    echo
    echo "If you're impatient you can try --timeout 1 --fast-sync, but beware of strange failures from race conditions"
    echo
    echo "Interesting options:"
    echo "  --tool_exec=    Test against a different bash executable."
    echo "  --debug         Create a dbg.log in the test directory with detailed expect match information."
    echo "  --timeout       Change expect timeout from the default of 10 seconds."
    echo "  --debug-xtrace  Create an xtrace.log in the test directory with set -x output. Requires bash 4.1."
    echo "  --fast-sync     Remove sleep statements from the sync_after_int function"
    echo
    echo "Example run: ./run unit/_get_cword.exp unit/compgen.exp"
}


# Try to set the tool variable; or fail if trying to set different values.
set_tool() {
    if [[ $tool ]]; then
        if [[ $tool != $1 ]]; then
            echo "Tool spec mismatch ('$tool' and '$1'). See --usage."
            exit 1
        fi
    else
        tool=$1
    fi
}


cd "${BASH_SOURCE[0]%/*}"


# Loop over the arguments.
args=()
while [[ $# > 0 ]]; do
    case "$1" in
        --help|--usage) usage; exit 1;;
        --debug-xtrace) args+=(OPT_BASH_XTRACE=1);;
        --fast-sync) args+=(OPT_FAST_SYNC=1);;
        --timeout) shift; timeout=$1;;
        --timeout=*) timeout=${1/--timeout=};;
        --tool=*) set_tool "${1#/--tool=}";;
        --tool) shift; set_tool "$1";;
        */completion/*.exp|*/unit/*.exp)
            arg=${1%/*}
            set_tool "${arg##*/}"
            args+=("${1##*/}")
            ;;
        *) args+=("$1")
    esac
    shift
done

[[ -n $timeout ]] && args+=("OPT_TIMEOUT=$timeout")
[[ -z $tool ]] && { echo "Must specify tool somehow"; exit 1; }

runtest --outdir log --tool $tool "${args[@]}"