#!/usr/bin/python
# Find missing ports
# 
# Johannes Winkelmann, jw at smts dot ch

import os
import sys

def usage():
    print "Usage: missdep <test_repo> [<source_repo1> <source_repo2> ...]"

if len(sys.argv) < 2:
    usage()
    sys.exit(-1)

# build a map with all ports
dep_map = dict()
list_cmd = 'prt-get list --no-std-config  '
for arg in sys.argv[1:]: 
    list_cmd += '--config-append="prtdir %s" ' % arg
    
for port in os.popen(list_cmd).readlines():
    dep_map[port.strip()] = 1


# find missing dependencies
missing_map = dict()
dep_cmd = 'prt-get printf --no-std-config ' \
           '--config-append="prtdir %s" "%%n:%%e:%%M\\n" ' % sys.argv[1]

missing_template = "Missing dependency %s, needed by %s"
for line in os.popen(dep_cmd).readlines():
    p, d, m = line.strip().split(':')
    d = d.replace(",", " ")
    
    if not d:
        continue
    if not m:
        m = "Unknown maintainer"

    for dep in d.split(' '):
        if not dep_map.has_key(dep):
            if not missing_map.has_key(m):
                missing_map[m] = list()
            missing_map[m].append(missing_template % (dep, p))


for k in missing_map.keys():
    print k
    for m in missing_map[k]:
        print "  %s" % m