compare/compare.py

   1 #!/usr/bin/python
   2
   3 import sys
   4 from tempfile import mkdtemp
   5 from os import mkdir, system
   6 import os.path
   7 import rpm
   8
   9
  10 def compare_header(refspec, altspec):
  11     warnings = []
  12
  13     refhdr = refspec.packages()[0].header()
  14     althdr = altspec.packages()[0].header()
  15
  16     refname = refhdr[rpm.RPMTAG_NAME]
  17     altname = althdr[rpm.RPMTAG_NAME]
  18
  19     refver = refhdr[rpm.RPMTAG_VERSION]
  20     altver = althdr[rpm.RPMTAG_VERSION]
  21
  22     reflic = refhdr[rpm.RPMTAG_LICENSE]
  23     altlic = althdr[rpm.RPMTAG_LICENSE]
  24
  25     refurl = refhdr[rpm.RPMTAG_URL]
  26     alturl = althdr[rpm.RPMTAG_URL]
  27
  28     if refver != altver:
  29         warnings.append("different version: '%s': '%s' != '%s': '%s'" % (refname, refver, altname, altver))
  30
  31     if reflic != altlic:
  32         warnings.append("different license: '%s': '%s' != '%s': '%s'" % (refname, reflic, altname, altlic))
  33
  34     if refurl != alturl:
  35         warnings.append("different URL: '%s': '%s' != '%s': '%s'" % (refname, refurl, altname, alturl))
  36
  37     return warnings
  38
  39 def compare_sources(refspec, altspec):
  40     warnings = []
  41     refsrc = []
  42     altsrc = []
  43     refsrcname = []
  44     altsrcname = []
  45     for src in refspec.sources():
  46         if src[2] == rpm.RPMBUILD_ISSOURCE:
  47             uri = src[0]
  48             offset = uri.rfind("/")
  49             if offset != -1:
  50                 baseuri = uri[0:offset]
  51                 srcname = uri[offset+1:]
  52             else:
  53                 baseuri = ""
  54                 srcname = uri
  55             refsrc.append([baseuri, srcname])
  56             refsrcname.append(srcname)
  57
  58     for src in altspec.sources():
  59         if src[2] == rpm.RPMBUILD_ISSOURCE:
  60             uri = src[0]
  61             offset = uri.rfind("/")
  62             if offset != -1:
  63                 baseuri = uri[0:offset]
  64                 srcname = uri[offset+1:]
  65             else:
  66                 baseuri = ""
  67                 srcname = uri
  68             altsrc.append([baseuri, srcname])
  69             altsrcname.append(srcname)
  70
  71
  72     for s in refsrc:
  73         if not s[1] in altsrcname:
  74             warnings.append("missing source: '%s'" % s[1])
  75     for s in altsrc:
  76         if not s[1] in refsrcname:
  77             warnings.append("extra source: '%s'" % s[1])
  78
  79     for s1 in refsrc:
  80         for s2 in altsrc:
  81             if s1[1] != s2[1]:
  82                 continue
  83             if s1[0] != s2[0]:
  84                 warnings.append("different base URI for source '%s': '%s' != '%s'" % (s1[1], s1[0], s2[0]))
  85
  86     return warnings
  87
  88
  89 def compare_patches(refspec, altspec):
  90     warnings = []
  91     refpatch = []
  92     altpatch = []
  93     for src in refspec.sources():
  94         if src[2] == rpm.RPMBUILD_ISPATCH:
  95             refpatch.append(src[0])
  96     for src in altspec.sources():
  97         if src[2] == rpm.RPMBUILD_ISPATCH:
  98             altpatch.append(src[0])
  99
 100     for p in refpatch:
 101         if not p in altpatch:
 102             warnings.append("missing patch '%s'" % p)
 103
 104     for p in altpatch:
 105         if not p in refpatch:
 106             warnings.append("extra patch '%s'" % p)
 107
 108     return warnings
 109
 110
 111 def compare_specs(refspec, altspec):
 112     warnings = []
 113
 114     for w in compare_header(refspec, altspec):
 115         warnings.append(w)
 116     for w in compare_sources(refspec, altspec):
 117         warnings.append(w)
 118     for w in compare_patches(refspec, altspec):
 119         warnings.append(w)
 120
 121     return warnings
 122
 123 def load_suppressions(file):
 124     if not os.path.exists(file):
 125         return []
 126
 127     supp = []
 128     s = open(suppressionfile)
 129     try:
 130         while 1:
 131             line = s.readline()
 132             if not line:
 133                 break;
 134             if line[0] == '#':
 135                 continue
 136
 137             line = line[0:-1]
 138             supp.append(line)
 139     finally:
 140         s.close()
 141
 142     return supp
 143
 144
 145
 146 scratchdir = mkdtemp("rpm-source-compare")
 147
 148 if len(sys.argv) != 4:
 149     print "syntax: %s REFERENCE-SPEC ALTERNATE-SPEC SUPPRESSIONS" % sys.argv[0]
 150     sys.exit(1)
 151
 152 refspecfile = sys.argv[1]
 153 altspecfile = sys.argv[2]
 154 suppressionfile = sys.argv[3]
 155
 156 ts = rpm.ts()
 157
 158 refspec = ts.parseSpec(refspecfile)
 159 altspec = ts.parseSpec(altspecfile)
 160 suppressions = load_suppressions(suppressionfile)
 161
 162
 163 warnings = []
 164 for w in compare_specs(refspec, altspec):
 165     if not w in suppressions:
 166         warnings.append(w)
 167
 168 if len(warnings) == 0:
 169     print "PASS"
 170 else:
 171     for w in warnings:
 172         print "WARNING %s" % w