PLD_Builder/poldek.py

   1 # vi: encoding=utf-8 ts=8 sts=4 sw=4 et
   2
   3 import re
   4 import types
   5 import string
   6 import xreadlines
   7
   8 from chroot import *
   9 from util import *
  10
  11
  12 def get_poldek_requires():
  13     # precompile regexps
  14     name_rx = re.compile(r"\d+\. ([^\s]+)-[^-]+-[^-]+\n")
  15     req_rx = re.compile(r" req .* --> (.*)\n")
  16     pkg_name_rx = re.compile(r"([^\s]+)-[^-]+-[^-]+")
  17
  18     # todo: if a and b are sets, then use sets module
  19     # and intersection method on set object
  20     def intersect(a, b):
  21         r = []
  22         for x in a:
  23             if x in b: r.append(x)
  24         return r
  25
  26     # add given req-list to cur_pkg_reqs
  27     def add_req(reqs):
  28         if len(reqs) == 1:
  29             if reqs[0] not in cur_pkg_reqs:
  30                 cur_pkg_reqs.append(reqs[0])
  31         else:
  32             did = 0
  33             for x in cur_pkg_reqs:
  34                 if type(x) is types.ListType:
  35                     i = intersect(x, reqs)
  36                     if len(i) == 0:
  37                         continue
  38                     did = 1
  39                     idx = cur_pkg_reqs.index(x)
  40                     if len(i) == 1:
  41                         if i[0] in cur_pkg_reqs:
  42                             del cur_pkg_reqs[idx]
  43                         else:
  44                             cur_pkg_reqs[idx] = i[0]
  45                     else:
  46                         cur_pkg_reqs[idx] = i
  47                 else:
  48                     if x in reqs:
  49                         return
  50             if not did:
  51                 cur_pkg_reqs.append(reqs)
  52
  53     pkg_reqs = {}
  54     cur_pkg_reqs = None
  55     cur_pkg = None
  56
  57     f = chr_popen("poldek -v -v --verify --unique-pkg-names")
  58     for l in xreadlines.xreadlines(f):
  59         m = name_rx.match(l)
  60         if m:
  61             if cur_pkg:
  62                 pkg_reqs[cur_pkg] = cur_pkg_reqs
  63             cur_pkg = m.groups(1)
  64             if pkg_reqs.has_key(cur_pkg):
  65                 cur_pkg = None
  66                 cur_pkg_reqs = None
  67             else:
  68                 cur_pkg_reqs = []
  69             continue
  70         m = req_rx.match(l)
  71         if m:
  72             reqs = []
  73             for x in string.split(m.group(1)):
  74                 if x in ["RPMLIB_CAP", "NOT", "FOUND", "UNMATCHED"]: continue
  75                 m = pkg_name_rx.match(x)
  76                 if m:
  77                     reqs.append(m.group(1))
  78                 else:
  79                     msg("poldek_reqs: bad pkg name: %s\n" % x)
  80             if len(reqs) != 0: add_req(reqs)
  81
  82     f.close()
  83
  84     if cur_pkg:
  85         pkg_reqs[cur_pkg] = cur_pkg_reqs
  86
  87     return pkg_reqs