3 # rediff-patches.py name.spec
16 RPMBUILD_ISPATCH = (1<<1)
18 def prepare_spec(r, patch_nr, before=False):
19 tempspec = tempfile.NamedTemporaryFile()
20 re_patch = re.compile(r'^%patch(?P<patch_number>\d+)\w*')
21 for line in r.parsed.split('\n'):
22 m = re_patch.match(line)
24 patch_number = int(m.group('patch_number'))
25 if patch_nr == patch_number:
27 tempspec.write(b"exit 0\n# here was patch%d\n" % patch_nr)
29 line = re.sub(r'#.*', "", line)
30 tempspec.write(b"%s\nexit 0\n" % line.encode('utf-8'))
32 tempspec.write(b"%s\n" % line.encode('utf-8'))
36 def unpack(spec, builddir):
37 cmd = [ 'rpmbuild', '-bp',
38 '--define', '_builddir %s' % builddir,
39 '--define', '_enable_debug_packages 0',
40 '--define', '_default_patch_fuzz 2',
42 logging.debug("running %s" % repr(cmd))
43 subprocess.check_call(cmd, stdout=sys.stderr, stderr=sys.stderr,
44 env={'LC_ALL': 'C.UTF-8'}, timeout=600)
46 def diff(diffdir_org, diffdir, builddir, output):
47 diffdir_org = os.path.basename(diffdir_org)
48 diffdir = os.path.basename(diffdir)
50 with open(output, 'wt') as f:
51 cmd = [ 'diff', '-urNp', '-x', '*.orig', diffdir_org, diffdir ]
52 logging.debug("running %s" % repr(cmd))
54 subprocess.check_call(cmd, cwd=builddir, stdout=f, stderr=sys.stderr,
55 env={'LC_ALL': 'C.UTF-8'}, timeout=600)
56 except subprocess.CalledProcessError as err:
57 if err.returncode != 1:
59 logging.info("rediff generated as %s" % output)
62 parser = parser = argparse.ArgumentParser(description='rediff patches to avoid fuzzy hunks')
63 parser.add_argument('spec', type=str, help='spec file name')
64 parser.add_argument('-p', '--patches', type=str, help='comma separated list of patch numbers to rediff')
65 parser.add_argument('-v', '--verbose', help='increase output verbosity', action='store_true')
66 args = parser.parse_args()
68 logging.basicConfig(level=logging.INFO)
69 rpm.setVerbosity(rpm.RPMLOG_ERR)
72 logging.basicConfig(level=logging.DEBUG)
73 rpm.setVerbosity(rpm.RPMLOG_DEBUG)
76 args.patches = [int(x) for x in args.patches.split(',')]
80 tempdir = tempfile.TemporaryDirectory(dir="/dev/shm")
82 builddir = os.path.join(topdir, 'BUILD')
84 rpm.addMacro("_builddir", builddir)
86 r = rpm.spec(specfile)
90 for (name, nr, flags) in r.sources:
91 if flags & RPMBUILD_ISPATCH:
94 applied_patches = collections.OrderedDict()
95 re_patch = re.compile(r'^%patch(?P<patch_number>\d+)\w*(?P<patch_args>.*)')
96 for line in r.parsed.split('\n'):
97 m = re_patch.match(line)
100 patch_nr = int(m.group('patch_number'))
101 patch_args = m.group('patch_args')
102 applied_patches[patch_nr] = patch_args
104 appsourcedir = rpm.expandMacro("%{_sourcedir}")
105 appbuilddir = rpm.expandMacro("%{_builddir}/%{?buildsubdir}")
107 for patch_nr in applied_patches.keys():
108 if args.patches and patch_nr not in args.patches:
110 patch_name = patches[patch_nr]
111 logging.info("*** patch %d: %s" % (patch_nr, patch_name))
113 tempspec = prepare_spec(r, patch_nr, before=True)
114 unpack(tempspec.name, builddir)
116 os.rename(appbuilddir, appbuilddir + ".org")
118 tempspec = prepare_spec(r, patch_nr, before=False)
119 unpack(tempspec.name, builddir)
122 diff(appbuilddir + ".org", appbuilddir, builddir, os.path.join(topdir, os.path.join(appsourcedir, patch_name + ".rediff")))
124 shutil.rmtree(builddir)
127 if __name__ == '__main__':