aboutsummaryrefslogtreecommitdiffstats
path: root/pythoneggs.py
blob: a2d9bc0b709194a9641ddf28009f6f8f731f2198 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2010 Per Øyvind Karlsen <peroyvind@mandriva.org>
#
# This program is free software. It may be redistributed and/or modified under
# the terms of the LGPL version 2.1 (or later).
#
# RPM5 python (egg) dependency generator.
#

from getopt import getopt
from os.path import basename, dirname, isdir, sep, splitext
from sys import argv, stdin, version
from pkg_resources import Distribution, FileMetadata, PathMetadata
from distutils.sysconfig import get_python_lib


opts, args = getopt(argv[1:], 'hPRSCOE',
        ['help', 'provides', 'requires', 'suggests', 'conflicts', 'obsoletes', 'extras'])

Provides = False
Requires = False
Suggests = False
Conflicts = False
Obsoletes = False
Extras = False

for o, a in opts:
    if o in ('-h', '--help'):
        print '-h, --help\tPrint help'
        print '-P, --provides\tPrint Provides'
        print '-R, --requires\tPrint Requires'
        print '-S, --suggests\tPrint Suggests'
        print '-C, --conflicts\tPrint Conflicts'
        print '-O, --obsoletes\tPrint Obsoletes (unused)'
        print '-E, --extras\tPrint Extras '
        exit(1)
    elif o in ('-P', '--provides'):
        Provides = True
    elif o in ('-R', '--requires'):
        Requires = True
    elif o in ('-S', '--suggests'):
        Suggests = True
    elif o in ('-C', '--conflicts'):
        Conflicts = True
    elif o in ('-O', '--obsoletes'):
        Obsoletes = True
    elif o in ('-E', '--extras'):
        Extras = True

if Requires:
    py_abi = True
else:
    py_abi = False
py_deps = {}
if args:
    files = args
else:
    files = stdin.readlines()
for f in files:
    f = f.strip()
    lower = f.lower()
    name = 'python(abi)'
    # add dependency based on path, versioned if within versioned python directory
    if py_abi and (lower.endswith('.py') or lower.endswith('.pyc') or lower.endswith('.pyo')):
        if not name in py_deps:
            py_deps[name] = []
        purelib = get_python_lib(standard_lib=1, plat_specific=0).split(version[:3])[0]
        platlib = get_python_lib(standard_lib=1, plat_specific=1).split(version[:3])[0]
        for lib in (purelib, platlib):
            if lib in f:
                spec = ('==',f.split(lib)[1].split(sep)[0])
                if not spec in py_deps[name]:
                    py_deps[name].append(spec)
    # Determine provide, requires, conflicts & suggests based on egg metadata
    if lower.endswith('.egg') or \
            lower.endswith('.egg-info') or \
            lower.endswith('.egg-link'):
        dist_name = basename(f)
        if isdir(f):
            path_item = dirname(f)
            metadata = PathMetadata(path_item, f)
        else:
            path_item = f
            metadata = FileMetadata(f)
        dist = Distribution.from_location(path_item, dist_name, metadata)
        py_major = dist.py_version[:1]
        if Provides:
            # If egg metadata says package name is python, we provide python(abi)
            if dist.key == 'python':
                name = 'python(abi)'
                if not name in py_deps:
                    py_deps[name] = []
                py_deps[name].append(('==', dist.py_version))
            name = 'pythonegg(%s)(%s)' % (py_major, dist.key)
            if not name in py_deps:
                py_deps[name] = []
            if dist.version:
                spec = ('==', dist.version)
                if not spec in py_deps[name]:
                    py_deps[name].append(spec)
        if Requires or (Suggests and dist.extras):
            name = 'python(abi)'
            # If egg metadata says package name is python, we don't add dependency on python(abi)
            if dist.key == 'python':
                py_abi = False
                if name in py_deps:
                    py_deps.pop(name)
            elif py_abi and dist.py_version:
                if not name in py_deps:
                    py_deps[name] = []
                spec = ('==', dist.py_version)
                if not spec in py_deps[name]:
                    py_deps[name].append(spec)
            deps = dist.requires()
            if Suggests:
                depsextras = dist.requires(extras=dist.extras)
                if not Requires:
                    for dep in reversed(depsextras):
                        if dep in deps:
                            depsextras.remove(dep)
                deps = depsextras
            # add requires/suggests based on egg metadata
            for dep in deps:
                name = 'pythonegg(%s)(%s)' % (py_major, dep.key)
                for spec in dep.specs:
                    if spec[0] != '!=':
                        if not name in py_deps:
                            py_deps[name] = []
                        if not spec in py_deps[name]:
                            py_deps[name].append(spec)
                if not dep.specs:
                    py_deps[name] = []
        # Unused, for automatic sub-package generation based on 'extras' from egg metadata
        # TODO: implement in rpm later, or...?
        if Extras:
            deps = dist.requires()
            extras = dist.extras
            print extras
            for extra in extras:
                print '%%package\textras-%s' % extra
                print 'Summary:\t%s extra for %s python egg' % (extra, dist.key)
                print 'Group:\t\tDevelopment/Python'
                depsextras = dist.requires(extras=[extra])
                for dep in reversed(depsextras):
                    if dep in deps:
                        depsextras.remove(dep)
                deps = depsextras
                for dep in deps:
                    for spec in dep.specs:
                        if spec[0] == '!=':
                            print 'Conflicts:\t%s %s %s' % (dep.key, '==', spec[1])
                        else:
                            print 'Requires:\t%s %s %s' % (dep.key, spec[0], spec[1])
                print '%%description\t%s' % extra
                print '%s extra for %s python egg' % (extra, dist.key)
                print '%%files\t\textras-%s\n' % extra
        if Conflicts:
            # Should we really add conflicts for extras?
            # Creating a meta package per extra with suggests on, which has
            # the requires/conflicts in stead might be a better solution...
            for dep in dist.requires(extras=dist.extras):
                name = dep.key
                for spec in dep.specs:
                    if spec[0] == '!=':
                        if not name in py_deps:
                            py_deps[name] = []
                        spec = ('==', spec[1])
                        if not spec in py_deps[name]:
                            py_deps[name].append(spec)
names = py_deps.keys()
names.sort()
for name in names:
    if py_deps[name]:
        # Print out versioned provides, requires, suggests, conflicts
        for spec in py_deps[name]:
            print '%s %s %s' % (name, spec[0], spec[1])
    else:
        # Print out unversioned provides, requires, suggests, conflicts
        print name