File size: 5,085 Bytes
8da6e34
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
from distutils.util import convert_path
from distutils import log
from distutils.errors import DistutilsOptionError
import distutils
import os

from setuptools.extern.six.moves import configparser

from setuptools import Command

__all__ = ['config_file', 'edit_config', 'option_base', 'setopt']


def config_file(kind="local"):
    """Get the filename of the distutils, local, global, or per-user config

    `kind` must be one of "local", "global", or "user"
    """
    if kind == 'local':
        return 'setup.cfg'
    if kind == 'global':
        return os.path.join(
            os.path.dirname(distutils.__file__), 'distutils.cfg'
        )
    if kind == 'user':
        dot = os.name == 'posix' and '.' or ''
        return os.path.expanduser(convert_path("~/%spydistutils.cfg" % dot))
    raise ValueError(
        "config_file() type must be 'local', 'global', or 'user'", kind
    )


def edit_config(filename, settings, dry_run=False):
    """Edit a configuration file to include `settings`

    `settings` is a dictionary of dictionaries or ``None`` values, keyed by
    command/section name.  A ``None`` value means to delete the entire section,
    while a dictionary lists settings to be changed or deleted in that section.
    A setting of ``None`` means to delete that setting.
    """
    log.debug("Reading configuration from %s", filename)
    opts = configparser.RawConfigParser()
    opts.read([filename])
    for section, options in settings.items():
        if options is None:
            log.info("Deleting section [%s] from %s", section, filename)
            opts.remove_section(section)
        else:
            if not opts.has_section(section):
                log.debug("Adding new section [%s] to %s", section, filename)
                opts.add_section(section)
            for option, value in options.items():
                if value is None:
                    log.debug(
                        "Deleting %s.%s from %s",
                        section, option, filename
                    )
                    opts.remove_option(section, option)
                    if not opts.options(section):
                        log.info("Deleting empty [%s] section from %s",
                                 section, filename)
                        opts.remove_section(section)
                else:
                    log.debug(
                        "Setting %s.%s to %r in %s",
                        section, option, value, filename
                    )
                    opts.set(section, option, value)

    log.info("Writing %s", filename)
    if not dry_run:
        with open(filename, 'w') as f:
            opts.write(f)


class option_base(Command):
    """Abstract base class for commands that mess with config files"""

    user_options = [
        ('global-config', 'g',
         "save options to the site-wide distutils.cfg file"),
        ('user-config', 'u',
         "save options to the current user's pydistutils.cfg file"),
        ('filename=', 'f',
         "configuration file to use (default=setup.cfg)"),
    ]

    boolean_options = [
        'global-config', 'user-config',
    ]

    def initialize_options(self):
        self.global_config = None
        self.user_config = None
        self.filename = None

    def finalize_options(self):
        filenames = []
        if self.global_config:
            filenames.append(config_file('global'))
        if self.user_config:
            filenames.append(config_file('user'))
        if self.filename is not None:
            filenames.append(self.filename)
        if not filenames:
            filenames.append(config_file('local'))
        if len(filenames) > 1:
            raise DistutilsOptionError(
                "Must specify only one configuration file option",
                filenames
            )
        self.filename, = filenames


class setopt(option_base):
    """Save command-line options to a file"""

    description = "set an option in setup.cfg or another config file"

    user_options = [
        ('command=', 'c', 'command to set an option for'),
        ('option=', 'o', 'option to set'),
        ('set-value=', 's', 'value of the option'),
        ('remove', 'r', 'remove (unset) the value'),
    ] + option_base.user_options

    boolean_options = option_base.boolean_options + ['remove']

    def initialize_options(self):
        option_base.initialize_options(self)
        self.command = None
        self.option = None
        self.set_value = None
        self.remove = None

    def finalize_options(self):
        option_base.finalize_options(self)
        if self.command is None or self.option is None:
            raise DistutilsOptionError("Must specify --command *and* --option")
        if self.set_value is None and not self.remove:
            raise DistutilsOptionError("Must specify --set-value or --remove")

    def run(self):
        edit_config(
            self.filename, {
                self.command: {self.option.replace('-', '_'): self.set_value}
            },
            self.dry_run
        )