mlbdeps

#!/usr/bin/env bash

set -e

SED=${SED:-sed}

name=$(basename "$0")

function normalize_path () {
    local path="$1"
    local opath=""
    while [ "$opath" != "$path" ]; do
        opath="$path"
        path="$(echo "$path" | ${SED} -e 's;^\./;;')"
    done
    local opath=""
    while [ "$opath" != "$path" ]; do
        opath="$path"
        path="$(echo "$path" | ${SED} -e 's;/\./;/;')"
    done
    opath=""
    while [ "$opath" != "$path" ]; do
        opath="$path"
        path="$(echo "$path" | ${SED} -e 's;[^/][^/]*/\.\./;;')"
    done
    path="$(echo "$path" | ${SED} -e 's;^\./;;')"
    echo "$path"
}

declare -a seen

function doit() {
    local mlb="$1"
    for s in "${seen[@]}"; do
        if [ "$mlb" == "$s" ]; then
            return 0
        fi
    done
    seen+=("$mlb");
    echo "$mlb"
    if [ -e "$mlb" ]; then
        local dir="$(dirname $mlb)"
        for f in $(cat "$mlb" | ${SED} -n -e 's/^[ ]*\([^ ]*\.\(sml\|sig\|fun\|mlb\)\).*/\1/p'); do
            case "$f" in
                /*) ;;
                \$\(*\)*) ;;
                *) f="$(normalize_path "$dir"/"$f")" ;;
            esac
            case "$f" in
                *.mlb) doit "$f";;
                *) echo "$f";;
            esac
        done
    fi
}

doit "$(normalize_path "$1")"