/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to breezy/archive/zip.py

  • Committer: Robert Collins
  • Date: 2005-10-19 10:11:57 UTC
  • mfrom: (1185.16.78)
  • mto: This revision was merged to the branch mainline in revision 1470.
  • Revision ID: robertc@robertcollins.net-20051019101157-17438d311e746b4f
merge from upstream

Show diffs side-by-side

added added

removed removed

Lines of Context:
breezy/archive/zip.py
1
 
# Copyright (C) 2005, 2006, 2008, 2009, 2010 Canonical Ltd
2
 
#
3
 
# This program is free software; you can redistribute it and/or modify
4
 
# it under the terms of the GNU General Public License as published by
5
 
# the Free Software Foundation; either version 2 of the License, or
6
 
# (at your option) any later version.
7
 
#
8
 
# This program is distributed in the hope that it will be useful,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
 
 
17
 
"""Export a Tree to a zip file.
18
 
"""
19
 
 
20
 
from __future__ import absolute_import
21
 
 
22
 
from contextlib import closing
23
 
import os
24
 
import stat
25
 
import sys
26
 
import tempfile
27
 
import time
28
 
import zipfile
29
 
 
30
 
from .. import (
31
 
    osutils,
32
 
    )
33
 
from ..export import _export_iter_entries
34
 
from ..trace import mutter
35
 
 
36
 
 
37
 
# Windows expects this bit to be set in the 'external_attr' section,
38
 
# or it won't consider the entry a directory.
39
 
ZIP_DIRECTORY_BIT = (1 << 4)
40
 
FILE_PERMISSIONS = (0o644 << 16)
41
 
DIR_PERMISSIONS = (0o755 << 16)
42
 
 
43
 
_FILE_ATTR = stat.S_IFREG | FILE_PERMISSIONS
44
 
_DIR_ATTR = stat.S_IFDIR | ZIP_DIRECTORY_BIT | DIR_PERMISSIONS
45
 
 
46
 
 
47
 
def zip_archive_generator(tree, dest, root, subdir=None,
48
 
                          force_mtime=None):
49
 
    """ Export this tree to a new zip file.
50
 
 
51
 
    `dest` will be created holding the contents of this tree; if it
52
 
    already exists, it will be overwritten".
53
 
    """
54
 
    compression = zipfile.ZIP_DEFLATED
55
 
    with tempfile.SpooledTemporaryFile() as buf:
56
 
        with closing(zipfile.ZipFile(buf, "w", compression)) as zipf, \
57
 
                tree.lock_read():
58
 
            for dp, tp, ie in _export_iter_entries(tree, subdir):
59
 
                mutter("  export {%s} kind %s to %s", tp, ie.kind, dest)
60
 
 
61
 
                # zipfile.ZipFile switches all paths to forward
62
 
                # slashes anyway, so just stick with that.
63
 
                if force_mtime is not None:
64
 
                    mtime = force_mtime
65
 
                else:
66
 
                    mtime = tree.get_file_mtime(tp)
67
 
                date_time = time.localtime(mtime)[:6]
68
 
                filename = osutils.pathjoin(root, dp)
69
 
                if ie.kind == "file":
70
 
                    zinfo = zipfile.ZipInfo(
71
 
                        filename=filename,
72
 
                        date_time=date_time)
73
 
                    zinfo.compress_type = compression
74
 
                    zinfo.external_attr = _FILE_ATTR
75
 
                    content = tree.get_file_text(tp)
76
 
                    zipf.writestr(zinfo, content)
77
 
                elif ie.kind in ("directory", "tree-reference"):
78
 
                    # Directories must contain a trailing slash, to indicate
79
 
                    # to the zip routine that they are really directories and
80
 
                    # not just empty files.
81
 
                    zinfo = zipfile.ZipInfo(
82
 
                        filename=filename + '/',
83
 
                        date_time=date_time)
84
 
                    zinfo.compress_type = compression
85
 
                    zinfo.external_attr = _DIR_ATTR
86
 
                    zipf.writestr(zinfo, '')
87
 
                elif ie.kind == "symlink":
88
 
                    zinfo = zipfile.ZipInfo(
89
 
                        filename=(filename + '.lnk'),
90
 
                        date_time=date_time)
91
 
                    zinfo.compress_type = compression
92
 
                    zinfo.external_attr = _FILE_ATTR
93
 
                    zipf.writestr(zinfo, tree.get_symlink_target(tp))
94
 
        # Urgh, headers are written last since they include e.g. file size.
95
 
        # So we have to buffer it all :(
96
 
        buf.seek(0)
97
 
        for chunk in osutils.file_iterator(buf):
98
 
            yield chunk