#!/bin/bash
function findMakefile() {
    file="$2"
    command cd "$1"
    while ! test -f "./$file"; do
        command cd .. 2>/dev/null
        test "$PWD" == "/" && return
    done
    echo "$PWD"
}

function run() {
    # Check if it's cmake; if so, don't try to colorise the output
    test -d "$objdir/CMakeFiles" && progress=false

    INSIDE_SPECIAL_MAKE=true
    export INSIDE_SPECIAL_MAKE

    if $progress; then
        if type -p pmake >/dev/null; then
            exec pmake "$@"
        else
            echo >&2 "Warning: cannot locate pmake!"
        fi
    fi

    exec $MAKE "$@"
}

[ "$MAKE" == "$0" ] && unset MAKE
MAKE=${MAKE-/usr/bin/make}
export MAKE

# Don't recurse
test -n "$INSIDE_SPECIAL_MAKE" && \
    exec $MAKE "$@"

# safety check
test -f $HOME/.bash_functions && . $HOME/.bash_functions
test "`type -t updatedirs`" == function || $MAKE "$@"

progress=true
file=Makefile
dir=.
args=()

# parse args
while test $# -gt 0 ; do
    case "${1}" in
        -f*)
            file="${1#-f}"
            shift
            test -z "$file" && {
                file="${1}"
                shift
            }
            args=("${args[@]}" -f "$file")
            ;;
        -C*)
            dir="${1#-C}"
            shift
            test -z "$dir" && {
                dir="${1}"
                shift
            }
            ;;
        VERBOSE=1)
            progress=false
            args=("${args[@]}" "$1")
            shift
            ;;
        *)
            args=("${args[@]}" "$1")
            shift
            ;;
    esac
done

objdir=$(findMakefile "$dir" "$file")
if [ -z "$objdir" ]; then
    # See if updatedirs can do something...
    objdir=$(command cd "$dir"; updatedirs; findMakefile "$objdir" "$file")
fi

run -C "$objdir" "${args[@]}"
exit 255

# Old code:

# Check if $dir exists
if ! test -d "$dir"; then
    # Doesn't exist. Let make complain
    run -C "$dir" "${args[@]}"
fi

# Check if $dir is a source or object dir
if test -f "$dir/file"; then
    # It's an object dir, since there's a Makefile there
    run -C "$dir" "${args[@]}"
fi