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  • Committer: Gustav Hartvigsson
  • Date: 2021-01-09 21:36:27 UTC
  • Revision ID: gustav.hartvigsson@gmail.com-20210109213627-h1xwcutzy9m7a99b
Added 'Case Preserving Working Tree Use Cases' from Canonical Wiki

* Addod a page from the Canonical Bazaar wiki
  with information on the scmeatics of case
  perserving filesystems an a case insensitive
  filesystem works.
  
  * Needs re-work, but this will do as it is the
    same inforamoton as what was on the linked
    page in the currint documentation.

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breezy/send.py
 
1
# Copyright (C) 2009, 2010 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
import os
 
18
import time
 
19
 
 
20
from . import (
 
21
    controldir,
 
22
    errors,
 
23
    osutils,
 
24
    registry,
 
25
    trace,
 
26
    )
 
27
from .i18n import gettext
 
28
from .branch import (
 
29
    Branch,
 
30
    )
 
31
from .revision import (
 
32
    NULL_REVISION,
 
33
    )
 
34
 
 
35
 
 
36
format_registry = registry.Registry()
 
37
 
 
38
 
 
39
def send(target_branch, revision, public_branch, remember,
 
40
         format, no_bundle, no_patch, output, from_, mail_to, message, body,
 
41
         to_file, strict=None):
 
42
    possible_transports = []
 
43
    tree, branch = controldir.ControlDir.open_containing_tree_or_branch(
 
44
        from_, possible_transports=possible_transports)[:2]
 
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    # we may need to write data into branch's repository to calculate
 
46
    # the data to send.
 
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    with branch.lock_write():
 
48
        if output is None:
 
49
            config_stack = branch.get_config_stack()
 
50
            if mail_to is None:
 
51
                mail_to = config_stack.get('submit_to')
 
52
            mail_client = config_stack.get('mail_client')(config_stack)
 
53
            if (not getattr(mail_client, 'supports_body', False)
 
54
                    and body is not None):
 
55
                raise errors.CommandError(gettext(
 
56
                    'Mail client "%s" does not support specifying body') %
 
57
                    mail_client.__class__.__name__)
 
58
        if remember and target_branch is None:
 
59
            raise errors.CommandError(gettext(
 
60
                '--remember requires a branch to be specified.'))
 
61
        stored_target_branch = branch.get_submit_branch()
 
62
        remembered_target_branch = None
 
63
        if target_branch is None:
 
64
            target_branch = stored_target_branch
 
65
            remembered_target_branch = "submit"
 
66
        else:
 
67
            # Remembers if asked explicitly or no previous location is set
 
68
            if remember or (
 
69
                    remember is None and stored_target_branch is None):
 
70
                branch.set_submit_branch(target_branch)
 
71
        if target_branch is None:
 
72
            target_branch = branch.get_parent()
 
73
            remembered_target_branch = "parent"
 
74
        if target_branch is None:
 
75
            raise errors.CommandError(gettext('No submit branch known or'
 
76
                                                 ' specified'))
 
77
        if remembered_target_branch is not None:
 
78
            trace.note(gettext('Using saved {0} location "{1}" to determine '
 
79
                               'what changes to submit.').format(
 
80
                remembered_target_branch,
 
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                target_branch))
 
82
 
 
83
        submit_branch = Branch.open(target_branch,
 
84
                                    possible_transports=possible_transports)
 
85
        possible_transports.append(submit_branch.controldir.root_transport)
 
86
        if mail_to is None or format is None:
 
87
            if mail_to is None:
 
88
                mail_to = submit_branch.get_config_stack().get(
 
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                    'child_submit_to')
 
90
            if format is None:
 
91
                formatname = submit_branch.get_child_submit_format()
 
92
                try:
 
93
                    format = format_registry.get(formatname)
 
94
                except KeyError:
 
95
                    raise errors.CommandError(
 
96
                        gettext("No such send format '%s'.") % formatname)
 
97
 
 
98
        stored_public_branch = branch.get_public_branch()
 
99
        if public_branch is None:
 
100
            public_branch = stored_public_branch
 
101
        # Remembers if asked explicitly or no previous location is set
 
102
        elif (remember
 
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              or (remember is None and stored_public_branch is None)):
 
104
            branch.set_public_branch(public_branch)
 
105
        if no_bundle and public_branch is None:
 
106
            raise errors.CommandError(gettext('No public branch specified or'
 
107
                                                 ' known'))
 
108
        base_revision_id = None
 
109
        revision_id = None
 
110
        if revision is not None:
 
111
            if len(revision) > 2:
 
112
                raise errors.CommandError(gettext('bzr send takes '
 
113
                                                     'at most two one revision identifiers'))
 
114
            revision_id = revision[-1].as_revision_id(branch)
 
115
            if len(revision) == 2:
 
116
                base_revision_id = revision[0].as_revision_id(branch)
 
117
        if revision_id is None:
 
118
            if tree is not None:
 
119
                tree.check_changed_or_out_of_date(
 
120
                    strict, 'send_strict',
 
121
                    more_error='Use --no-strict to force the send.',
 
122
                    more_warning='Uncommitted changes will not be sent.')
 
123
            revision_id = branch.last_revision()
 
124
        if revision_id == NULL_REVISION:
 
125
            raise errors.CommandError(gettext('No revisions to submit.'))
 
126
        if format is None:
 
127
            format = format_registry.get()
 
128
        directive = format(branch, revision_id, target_branch,
 
129
                           public_branch, no_patch, no_bundle, message, base_revision_id,
 
130
                           submit_branch)
 
131
        if output is None:
 
132
            directive.compose_merge_request(mail_client, mail_to, body,
 
133
                                            branch, tree)
 
134
        else:
 
135
            if directive.multiple_output_files:
 
136
                if output == '-':
 
137
                    raise errors.CommandError(gettext('- not supported for '
 
138
                                                         'merge directives that use more than one output file.'))
 
139
                if not os.path.exists(output):
 
140
                    os.mkdir(output, 0o755)
 
141
                for (filename, lines) in directive.to_files():
 
142
                    path = os.path.join(output, filename)
 
143
                    with open(path, 'wb') as outfile:
 
144
                        outfile.writelines(lines)
 
145
            else:
 
146
                if output == '-':
 
147
                    outfile = to_file
 
148
                else:
 
149
                    outfile = open(output, 'wb')
 
150
                try:
 
151
                    outfile.writelines(directive.to_lines())
 
152
                finally:
 
153
                    if outfile is not to_file:
 
154
                        outfile.close()
 
155
 
 
156
 
 
157
def _send_4(branch, revision_id, target_branch, public_branch,
 
158
            no_patch, no_bundle, message,
 
159
            base_revision_id, local_target_branch=None):
 
160
    from breezy import merge_directive
 
161
    return merge_directive.MergeDirective2.from_objects(
 
162
        branch.repository, revision_id, time.time(),
 
163
        osutils.local_time_offset(), target_branch,
 
164
        public_branch=public_branch,
 
165
        include_patch=not no_patch,
 
166
        include_bundle=not no_bundle, message=message,
 
167
        base_revision_id=base_revision_id,
 
168
        local_target_branch=local_target_branch)
 
169
 
 
170
 
 
171
def _send_0_9(branch, revision_id, submit_branch, public_branch,
 
172
              no_patch, no_bundle, message,
 
173
              base_revision_id, local_target_branch=None):
 
174
    if not no_bundle:
 
175
        if not no_patch:
 
176
            patch_type = 'bundle'
 
177
        else:
 
178
            raise errors.CommandError(gettext('Format 0.9 does not'
 
179
                                                 ' permit bundle with no patch'))
 
180
    else:
 
181
        if not no_patch:
 
182
            patch_type = 'diff'
 
183
        else:
 
184
            patch_type = None
 
185
    from breezy import merge_directive
 
186
    return merge_directive.MergeDirective.from_objects(
 
187
        branch.repository, revision_id, time.time(),
 
188
        osutils.local_time_offset(), submit_branch,
 
189
        public_branch=public_branch, patch_type=patch_type,
 
190
        message=message, local_target_branch=local_target_branch)
 
191
 
 
192
 
 
193
format_registry.register('4',
 
194
                         _send_4, 'Bundle format 4, Merge Directive 2 (default)')
 
195
format_registry.register('0.9',
 
196
                         _send_0_9, 'Bundle format 0.9, Merge Directive 1')
 
197
format_registry.default_key = '4'