"""distutils.command.install_data

Implements the Distutils 'install_data' command, for installing

platform-independent data files."""

# contributed by Bastian Kleineidam

# This module should be kept compatible with Python 2.1.

__revision__ = "$Id: install_data.py 37828 2004-11-10 22:23:15Z loewis $"

import os

from types import StringType

from distutils.core import Command

from distutils.util import change_root, convert_path

class install_data (Command):

    description = "install data files"

    user_options = [

        ('install-dir=', 'd',

         "base directory for installing data files "

         "(default: installation base dir)"),

        ('root=', None,

         "install everything relative to this alternate root directory"),

        ('force', 'f', "force installation (overwrite existing files)"),

        ]

    boolean_options = ['force']

    def initialize_options (self):

        self.install_dir = None

        self.outfiles = []

        self.root = None

        self.force = 0

        self.data_files = self.distribution.data_files

        self.warn_dir = 1

    def finalize_options (self):

        self.set_undefined_options('install',

                                   ('install_data', 'install_dir'),

                                   ('root', 'root'),

                                   ('force', 'force'),

                                  )

    def run (self):

        self.mkpath(self.install_dir)

        for f in self.data_files:

            if type(f) is StringType:

                # it's a simple file, so copy it

                f = convert_path(f)

                if self.warn_dir:

                    self.warn("setup script did not provide a directory for "

                              "'%s' -- installing right in '%s'" %

                              (f, self.install_dir))

                (out, _) = self.copy_file(f, self.install_dir)

                self.outfiles.append(out)

            else:

                # it's a tuple with path to install to and a list of files

                dir = convert_path(f[0])

                if not os.path.isabs(dir):

                    dir = os.path.join(self.install_dir, dir)

                elif self.root:

                    dir = change_root(self.root, dir)

                self.mkpath(dir)

                if f[1] == []:

                    # If there are no files listed, the user must be

                    # trying to create an empty directory, so add the

                    # directory to the list of output files.

                    self.outfiles.append(dir)

                else:

                    # Copy files, adding them to the list of output files.

                    for data in f[1]:

                        data = convert_path(data)

                        (out, _) = self.copy_file(data, dir)

                        self.outfiles.append(out)

    def get_inputs (self):

        return self.data_files or []

    def get_outputs (self):

        return self.outfiles