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  • Committer: Jelmer Vernooij
  • Date: 2012-07-09 15:23:26 UTC
  • mto: This revision was merged to the branch mainline in revision 794.
  • Revision ID: jelmer@samba.org-20120709152326-dzxb8zoz0btull7n
Remove bzr-notify.

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
 
# -*- coding: UTF-8 -*-
2
1
"""Difference window.
3
2
 
4
3
This module contains the code to manage the diff window which shows
5
4
the changes made between two revisions on a branch.
6
5
"""
7
6
 
8
 
__copyright__ = "Copyright © 2005 Canonical Ltd."
9
 
__author__    = "Scott James Remnant <scott@ubuntu.com>"
 
7
__copyright__ = "Copyright 2005 Canonical Ltd."
 
8
__author__ = "Scott James Remnant <scott@ubuntu.com>"
10
9
 
11
10
 
12
11
from cStringIO import StringIO
13
12
 
14
 
import pygtk
15
 
pygtk.require("2.0")
16
 
import gtk
17
 
import pango
18
 
import os
19
 
import re
20
13
import sys
 
14
import inspect
21
15
 
 
16
from gi.repository import Gtk
 
17
from gi.repository import Pango
22
18
try:
23
 
    import gtksourceview
 
19
    from gi.repository import GtkSource
24
20
    have_gtksourceview = True
25
21
except ImportError:
26
22
    have_gtksourceview = False
27
 
try:
28
 
    import gconf
29
 
    have_gconf = True
30
 
except ImportError:
31
 
    have_gconf = False
32
23
 
33
24
from bzrlib import (
 
25
    errors,
34
26
    merge as _mod_merge,
35
27
    osutils,
36
 
    progress,
37
28
    urlutils,
38
29
    workingtree,
39
 
)
40
 
from bzrlib.diff import show_diff_trees, internal_diff
41
 
from bzrlib.errors import NoSuchFile
 
30
    )
 
31
from bzrlib.diff import show_diff_trees
42
32
from bzrlib.patches import parse_patches
43
 
from bzrlib.trace import warning
44
 
from bzrlib.plugins.gtk import _i18n
 
33
from bzrlib.plugins.gtk.dialog import (
 
34
    error_dialog,
 
35
    info_dialog,
 
36
    warning_dialog,
 
37
    )
 
38
from bzrlib.plugins.gtk.i18n import _i18n
45
39
from bzrlib.plugins.gtk.window import Window
46
 
from dialog import error_dialog, info_dialog, warning_dialog
 
40
 
 
41
 
 
42
def fallback_guess_language(slm, content_type):
 
43
    for lang_id in slm.get_language_ids():
 
44
        lang = slm.get_language(lang_id)
 
45
        if "text/x-patch" in lang.get_mime_types():
 
46
            return lang
 
47
    return None
47
48
 
48
49
 
49
50
class SelectCancelled(Exception):
51
52
    pass
52
53
 
53
54
 
54
 
class DiffFileView(gtk.ScrolledWindow):
 
55
class DiffFileView(Gtk.ScrolledWindow):
55
56
    """Window for displaying diffs from a diff file"""
56
57
 
 
58
    SHOW_WIDGETS = True
 
59
 
57
60
    def __init__(self):
58
 
        gtk.ScrolledWindow.__init__(self)
 
61
        super(DiffFileView, self).__init__()
59
62
        self.construct()
60
63
        self._diffs = {}
61
64
 
62
65
    def construct(self):
63
 
        self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
64
 
        self.set_shadow_type(gtk.SHADOW_IN)
 
66
        self.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
 
67
        self.set_shadow_type(Gtk.ShadowType.IN)
65
68
 
66
69
        if have_gtksourceview:
67
 
            self.buffer = gtksourceview.SourceBuffer()
68
 
            slm = gtksourceview.SourceLanguagesManager()
69
 
            gsl = slm.get_language_from_mime_type("text/x-patch")
70
 
            if have_gconf:
71
 
                self.apply_gedit_colors(gsl)
72
 
            self.apply_colordiff_colors(gsl)
73
 
            self.buffer.set_language(gsl)
74
 
            self.buffer.set_highlight(True)
75
 
 
76
 
            sourceview = gtksourceview.SourceView(self.buffer)
 
70
            self.buffer = GtkSource.Buffer()
 
71
            lang_manager = GtkSource.LanguageManager.get_default()
 
72
            language = lang_manager.guess_language(None, "text/x-patch")
 
73
            self.buffer.set_language(language)
 
74
            self.buffer.set_highlight_syntax(True)
 
75
            self.sourceview = GtkSource.View(buffer=self.buffer)
77
76
        else:
78
 
            self.buffer = gtk.TextBuffer()
79
 
            sourceview = gtk.TextView(self.buffer)
80
 
 
81
 
        sourceview.set_editable(False)
82
 
        sourceview.modify_font(pango.FontDescription("Monospace"))
83
 
        self.add(sourceview)
84
 
        sourceview.show()
85
 
 
86
 
    @staticmethod
87
 
    def apply_gedit_colors(lang):
88
 
        """Set style for lang to that specified in gedit configuration.
89
 
 
90
 
        This method needs the gconf module.
91
 
 
92
 
        :param lang: a gtksourceview.SourceLanguage object.
93
 
        """
94
 
        GEDIT_SYNTAX_PATH = '/apps/gedit-2/preferences/syntax_highlighting'
95
 
        GEDIT_LANG_PATH = GEDIT_SYNTAX_PATH + '/' + lang.get_id()
96
 
 
97
 
        client = gconf.client_get_default()
98
 
        client.add_dir(GEDIT_LANG_PATH, gconf.CLIENT_PRELOAD_NONE)
99
 
 
100
 
        for tag in lang.get_tags():
101
 
            tag_id = tag.get_id()
102
 
            gconf_key = GEDIT_LANG_PATH + '/' + tag_id
103
 
            style_string = client.get_string(gconf_key)
104
 
 
105
 
            if style_string is None:
106
 
                continue
107
 
 
108
 
            # function to get a bool from a string that's either '0' or '1'
109
 
            string_bool = lambda x: bool(int(x))
110
 
 
111
 
            # style_string is a string like "2/#FFCCAA/#000000/0/1/0/0"
112
 
            # values are: mask, fg, bg, italic, bold, underline, strike
113
 
            # this packs them into (str_value, attr_name, conv_func) tuples
114
 
            items = zip(style_string.split('/'), ['mask', 'foreground',
115
 
                'background', 'italic', 'bold', 'underline', 'strikethrough' ],
116
 
                [ int, gtk.gdk.color_parse, gtk.gdk.color_parse, string_bool,
117
 
                    string_bool, string_bool, string_bool ]
118
 
            )
119
 
 
120
 
            style = gtksourceview.SourceTagStyle()
121
 
 
122
 
            # XXX The mask attribute controls whether the present values of
123
 
            # foreground and background color should in fact be used. Ideally
124
 
            # (and that's what gedit does), one could set all three attributes,
125
 
            # and let the TagStyle object figure out which colors to use.
126
 
            # However, in the GtkSourceview python bindings, the mask attribute
127
 
            # is read-only, and it's derived instead from the colors being
128
 
            # set or not. This means that we have to sometimes refrain from
129
 
            # setting fg or bg colors, depending on the value of the mask.
130
 
            # This code could go away if mask were writable.
131
 
            mask = int(items[0][0])
132
 
            if not (mask & 1): # GTK_SOURCE_TAG_STYLE_USE_BACKGROUND
133
 
                items[2:3] = []
134
 
            if not (mask & 2): # GTK_SOURCE_TAG_STYLE_USE_FOREGROUND
135
 
                items[1:2] = []
136
 
            items[0:1] = [] # skip the mask unconditionally
137
 
 
138
 
            for value, attr, func in items:
139
 
                try:
140
 
                    value = func(value)
141
 
                except ValueError:
142
 
                    warning('gconf key %s contains an invalid value: %s'
143
 
                            % gconf_key, value)
144
 
                else:
145
 
                    setattr(style, attr, value)
146
 
 
147
 
            lang.set_tag_style(tag_id, style)
148
 
 
149
 
    @classmethod
150
 
    def apply_colordiff_colors(klass, lang):
151
 
        """Set style colors for lang using the colordiff configuration file.
152
 
 
153
 
        Both ~/.colordiffrc and ~/.colordiffrc.bzr-gtk are read.
154
 
 
155
 
        :param lang: a "Diff" gtksourceview.SourceLanguage object.
156
 
        """
157
 
        colors = {}
158
 
 
159
 
        for f in ('~/.colordiffrc', '~/.colordiffrc.bzr-gtk'):
160
 
            f = os.path.expanduser(f)
161
 
            if os.path.exists(f):
162
 
                try:
163
 
                    f = file(f)
164
 
                except IOError, e:
165
 
                    warning('could not open file %s: %s' % (f, str(e)))
166
 
                else:
167
 
                    colors.update(klass.parse_colordiffrc(f))
168
 
                    f.close()
169
 
 
170
 
        if not colors:
171
 
            # ~/.colordiffrc does not exist
172
 
            return
173
 
 
174
 
        mapping = {
175
 
                # map GtkSourceView tags to colordiff names
176
 
                # since GSV is richer, accept new names for extra bits,
177
 
                # defaulting to old names if they're not present
178
 
                'Added@32@line': ['newtext'],
179
 
                'Removed@32@line': ['oldtext'],
180
 
                'Location': ['location', 'diffstuff'],
181
 
                'Diff@32@file': ['file', 'diffstuff'],
182
 
                'Special@32@case': ['specialcase', 'diffstuff'],
183
 
        }
184
 
 
185
 
        for tag in lang.get_tags():
186
 
            tag_id = tag.get_id()
187
 
            keys = mapping.get(tag_id, [])
188
 
            color = None
189
 
 
190
 
            for key in keys:
191
 
                color = colors.get(key, None)
192
 
                if color is not None:
193
 
                    break
194
 
 
195
 
            if color is None:
196
 
                continue
197
 
 
198
 
            style = gtksourceview.SourceTagStyle()
199
 
            try:
200
 
                style.foreground = gtk.gdk.color_parse(color)
201
 
            except ValueError:
202
 
                warning('not a valid color: %s' % color)
203
 
            else:
204
 
                lang.set_tag_style(tag_id, style)
205
 
 
206
 
    @staticmethod
207
 
    def parse_colordiffrc(fileobj):
208
 
        """Parse fileobj as a colordiff configuration file.
209
 
 
210
 
        :return: A dict with the key -> value pairs.
211
 
        """
212
 
        colors = {}
213
 
        for line in fileobj:
214
 
            if re.match(r'^\s*#', line):
215
 
                continue
216
 
            if '=' not in line:
217
 
                continue
218
 
            key, val = line.split('=', 1)
219
 
            colors[key.strip()] = val.strip()
220
 
        return colors
 
77
            self.buffer = Gtk.TextBuffer()
 
78
            self.sourceview = Gtk.TextView(self.buffer)
 
79
 
 
80
        self.sourceview.set_editable(False)
 
81
        self.sourceview.override_font(Pango.FontDescription("Monospace"))
 
82
        self.add(self.sourceview)
 
83
        if self.SHOW_WIDGETS:
 
84
            self.sourceview.show()
221
85
 
222
86
    def set_trees(self, rev_tree, parent_tree):
223
87
        self.rev_tree = rev_tree
228
92
#        self.parent_tree.lock_read()
229
93
#        self.rev_tree.lock_read()
230
94
#        try:
231
 
#            self.delta = iter_changes_to_status(self.parent_tree, self.rev_tree)
 
95
#            self.delta = iter_changes_to_status(
 
96
#               self.parent_tree, self.rev_tree)
232
97
#            self.path_to_status = {}
233
98
#            self.path_to_diff = {}
234
99
#            source_inv = self.parent_tree.inventory
235
100
#            target_inv = self.rev_tree.inventory
236
101
#            for (file_id, real_path, change_type, display_path) in self.delta:
237
 
#                self.path_to_status[real_path] = u'=== %s %s' % (change_type, display_path)
 
102
#                self.path_to_status[real_path] = u'=== %s %s' % (
 
103
#                    change_type, display_path)
238
104
#                if change_type in ('modified', 'renamed and modified'):
239
105
#                    source_ie = source_inv[file_id]
240
106
#                    target_ie = target_inv[file_id]
242
108
#                    source_ie.diff(internal_diff, *old path, *old_tree,
243
109
#                                   *new_path, target_ie, self.rev_tree,
244
110
#                                   sio)
245
 
#                    self.path_to_diff[real_path] = 
 
111
#                    self.path_to_diff[real_path] =
246
112
#
247
113
#        finally:
248
114
#            self.rev_tree.unlock()
262
128
    """This is the soft and chewy filling for a DiffWindow."""
263
129
 
264
130
    def __init__(self):
265
 
        DiffFileView.__init__(self)
 
131
        super(DiffView, self).__init__()
266
132
        self.rev_tree = None
267
133
        self.parent_tree = None
268
134
 
292
158
        self.buffer.set_text(decoded.encode('UTF-8'))
293
159
 
294
160
 
295
 
class DiffWidget(gtk.HPaned):
 
161
class DiffWidget(Gtk.HPaned):
296
162
    """Diff widget
297
163
 
298
164
    """
 
165
 
 
166
    SHOW_WIDGETS = True
 
167
 
299
168
    def __init__(self):
300
169
        super(DiffWidget, self).__init__()
301
170
 
302
171
        # The file hierarchy: a scrollable treeview
303
 
        scrollwin = gtk.ScrolledWindow()
304
 
        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
305
 
        scrollwin.set_shadow_type(gtk.SHADOW_IN)
 
172
        scrollwin = Gtk.ScrolledWindow()
 
173
        scrollwin.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)
 
174
        scrollwin.set_shadow_type(Gtk.ShadowType.IN)
306
175
        self.pack1(scrollwin)
307
 
        scrollwin.show()
 
176
        if self.SHOW_WIDGETS:
 
177
            scrollwin.show()
308
178
 
309
 
        self.model = gtk.TreeStore(str, str)
310
 
        self.treeview = gtk.TreeView(self.model)
 
179
        self.model = Gtk.TreeStore(str, str)
 
180
        self.treeview = Gtk.TreeView(model=self.model)
311
181
        self.treeview.set_headers_visible(False)
312
182
        self.treeview.set_search_column(1)
313
183
        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
314
184
        scrollwin.add(self.treeview)
315
 
        self.treeview.show()
 
185
        if self.SHOW_WIDGETS:
 
186
            self.treeview.show()
316
187
 
317
 
        cell = gtk.CellRendererText()
 
188
        cell = Gtk.CellRendererText()
318
189
        cell.set_property("width-chars", 20)
319
 
        column = gtk.TreeViewColumn()
320
 
        column.pack_start(cell, expand=True)
 
190
        column = Gtk.TreeViewColumn()
 
191
        column.pack_start(cell, True)
321
192
        column.add_attribute(cell, "text", 0)
322
193
        self.treeview.append_column(column)
323
194
 
328
199
        """
329
200
        # The diffs of the  selected file: a scrollable source or
330
201
        # text view
331
 
        self.diff_view = DiffFileView()
332
 
        self.diff_view.show()
333
 
        self.pack2(self.diff_view)
334
 
        self.model.append(None, [ "Complete Diff", "" ])
335
 
        self.diff_view._diffs[None] = ''.join(lines)
336
 
        for patch in parse_patches(lines):
337
 
            oldname = patch.oldname.split('\t')[0]
338
 
            newname = patch.newname.split('\t')[0]
 
202
 
 
203
    def set_diff_text_sections(self, sections):
 
204
        if getattr(self, 'diff_view', None) is None:
 
205
            self.diff_view = DiffFileView()
 
206
            self.pack2(self.diff_view)
 
207
        if self.SHOW_WIDGETS:
 
208
            self.diff_view.show()
 
209
        for oldname, newname, patch in sections:
 
210
            self.diff_view._diffs[newname] = str(patch)
 
211
            if newname is None:
 
212
                newname = ''
339
213
            self.model.append(None, [oldname, newname])
340
 
            self.diff_view._diffs[newname] = str(patch)
341
214
        self.diff_view.show_diff(None)
342
215
 
343
216
    def set_diff(self, rev_tree, parent_tree):
346
219
        Compares the two trees and populates the window with the
347
220
        differences.
348
221
        """
349
 
        self.diff_view = DiffView()
350
 
        self.pack2(self.diff_view)
351
 
        self.diff_view.show()
 
222
        if getattr(self, 'diff_view', None) is None:
 
223
            self.diff_view = DiffView()
 
224
            self.pack2(self.diff_view)
 
225
        if self.SHOW_WIDGETS:
 
226
            self.diff_view.show()
352
227
        self.diff_view.set_trees(rev_tree, parent_tree)
353
228
        self.rev_tree = rev_tree
354
229
        self.parent_tree = parent_tree
356
231
        self.model.clear()
357
232
        delta = self.rev_tree.changes_from(self.parent_tree)
358
233
 
359
 
        self.model.append(None, [ "Complete Diff", "" ])
 
234
        self.model.append(None, ["Complete Diff", ""])
360
235
 
361
236
        if len(delta.added):
362
 
            titer = self.model.append(None, [ "Added", None ])
 
237
            titer = self.model.append(None, ["Added", None])
363
238
            for path, id, kind in delta.added:
364
 
                self.model.append(titer, [ path, path ])
 
239
                self.model.append(titer, [path, path])
365
240
 
366
241
        if len(delta.removed):
367
 
            titer = self.model.append(None, [ "Removed", None ])
 
242
            titer = self.model.append(None, ["Removed", None])
368
243
            for path, id, kind in delta.removed:
369
 
                self.model.append(titer, [ path, path ])
 
244
                self.model.append(titer, [path, path])
370
245
 
371
246
        if len(delta.renamed):
372
 
            titer = self.model.append(None, [ "Renamed", None ])
 
247
            titer = self.model.append(None, ["Renamed", None])
373
248
            for oldpath, newpath, id, kind, text_modified, meta_modified \
374
249
                    in delta.renamed:
375
 
                self.model.append(titer, [ oldpath, newpath ])
 
250
                self.model.append(titer, [oldpath, newpath])
376
251
 
377
252
        if len(delta.modified):
378
 
            titer = self.model.append(None, [ "Modified", None ])
 
253
            titer = self.model.append(None, ["Modified", None])
379
254
            for path, id, kind, text_modified, meta_modified in delta.modified:
380
 
                self.model.append(titer, [ path, path ])
 
255
                self.model.append(titer, [path, path])
381
256
 
382
257
        self.treeview.expand_all()
 
258
        self.diff_view.show_diff(None)
383
259
 
384
260
    def set_file(self, file_path):
385
261
        """Select the current file to display"""
390
266
                    tv_path = child.path
391
267
                    break
392
268
        if tv_path is None:
393
 
            raise NoSuchFile(file_path)
394
 
        self.treeview.set_cursor(tv_path)
 
269
            raise errors.NoSuchFile(file_path)
 
270
        self.treeview.set_cursor(tv_path, None, False)
395
271
        self.treeview.scroll_to_cell(tv_path)
396
272
 
397
273
    def _treeview_cursor_cb(self, *args):
398
274
        """Callback for when the treeview cursor changes."""
399
275
        (path, col) = self.treeview.get_cursor()
400
 
        specific_files = [ self.model[path][1] ]
401
 
        if specific_files == [ None ]:
402
 
            return
403
 
        elif specific_files == [ "" ]:
 
276
        if path is None:
 
277
            return
 
278
        specific_files = [self.model[path][1]]
 
279
        if specific_files == [None]:
 
280
            return
 
281
        elif specific_files == [""]:
404
282
            specific_files = None
405
283
 
406
284
        self.diff_view.show_diff(specific_files)
407
285
 
 
286
    def _on_wraplines_toggled(self, widget=None, wrap=False):
 
287
        """Callback for when the wrap lines checkbutton is toggled"""
 
288
        if wrap or widget.get_active():
 
289
            self.diff_view.sourceview.set_wrap_mode(Gtk.WrapMode.WORD)
 
290
        else:
 
291
            self.diff_view.sourceview.set_wrap_mode(Gtk.WrapMode.NONE)
 
292
 
408
293
 
409
294
class DiffWindow(Window):
410
295
    """Diff window.
413
298
    differences between two revisions on a branch.
414
299
    """
415
300
 
416
 
    def __init__(self, parent=None):
417
 
        Window.__init__(self, parent)
 
301
    SHOW_WIDGETS = True
 
302
 
 
303
    def __init__(self, parent=None, operations=None):
 
304
        super(DiffWindow, self).__init__(parent=parent)
418
305
        self.set_border_width(0)
419
 
        self.set_title("bzrk diff")
 
306
        self.set_title("bzr diff")
420
307
 
421
308
        # Use two thirds of the screen by default
422
309
        screen = self.get_screen()
424
311
        width = int(monitor.width * 0.66)
425
312
        height = int(monitor.height * 0.66)
426
313
        self.set_default_size(width, height)
427
 
 
428
 
        self.construct()
429
 
 
430
 
    def construct(self):
 
314
        self.construct(operations)
 
315
 
 
316
    def construct(self, operations):
431
317
        """Construct the window contents."""
432
 
        self.vbox = gtk.VBox()
 
318
        self.vbox = Gtk.VBox()
433
319
        self.add(self.vbox)
434
 
        self.vbox.show()
435
 
        hbox = self._get_button_bar()
 
320
        if self.SHOW_WIDGETS:
 
321
            self.vbox.show()
 
322
        self.diff = DiffWidget()
 
323
        self.vbox.pack_end(self.diff, True, True, 0)
 
324
        if self.SHOW_WIDGETS:
 
325
            self.diff.show_all()
 
326
        # Build after DiffWidget to connect signals
 
327
        menubar = self._get_menu_bar()
 
328
        self.vbox.pack_start(menubar, False, False, 0)
 
329
        hbox = self._get_button_bar(operations)
436
330
        if hbox is not None:
437
 
            self.vbox.pack_start(hbox, expand=False, fill=True)
438
 
        self.diff = DiffWidget()
439
 
        self.vbox.add(self.diff)
440
 
        self.diff.show_all()
441
 
 
442
 
    def _get_button_bar(self):
 
331
            self.vbox.pack_start(hbox, False, True, 0)
 
332
 
 
333
    def _get_menu_bar(self):
 
334
        menubar = Gtk.MenuBar()
 
335
        # View menu
 
336
        mb_view = Gtk.MenuItem.new_with_mnemonic(_i18n("_View"))
 
337
        mb_view_menu = Gtk.Menu()
 
338
        mb_view_wrapsource = Gtk.CheckMenuItem.new_with_mnemonic(
 
339
            _i18n("Wrap _Long Lines"))
 
340
        mb_view_wrapsource.connect('activate', self.diff._on_wraplines_toggled)
 
341
        mb_view_menu.append(mb_view_wrapsource)
 
342
        mb_view.set_submenu(mb_view_menu)
 
343
        menubar.append(mb_view)
 
344
        if self.SHOW_WIDGETS:
 
345
            menubar.show_all()
 
346
        return menubar
 
347
 
 
348
    def _get_button_bar(self, operations):
443
349
        """Return a button bar to use.
444
350
 
445
351
        :return: None, meaning that no button bar will be used.
446
352
        """
447
 
        return None
448
 
 
449
 
    def set_diff_text(self, description, lines):
450
 
        """Set the diff from a text.
451
 
 
452
 
        The diff must be in unified diff format, and will be parsed to
453
 
        determine filenames.
454
 
        """
455
 
        self.diff.set_diff_text(lines)
456
 
        self.set_title(description + " - bzrk diff")
 
353
        if operations is None:
 
354
            return None
 
355
        hbox = Gtk.HButtonBox()
 
356
        hbox.set_layout(Gtk.ButtonBoxStyle.START)
 
357
        for title, method in operations:
 
358
            merge_button = Gtk.Button(title)
 
359
            if self.SHOW_WIDGETS:
 
360
                merge_button.show()
 
361
            merge_button.set_relief(Gtk.ReliefStyle.NONE)
 
362
            merge_button.connect("clicked", method)
 
363
            hbox.pack_start(merge_button, False, True, 0)
 
364
        if self.SHOW_WIDGETS:
 
365
            hbox.show()
 
366
        return hbox
 
367
 
 
368
    def _get_merge_target(self):
 
369
        d = Gtk.FileChooserDialog('Merge branch', self,
 
370
                                  Gtk.FileChooserAction.SELECT_FOLDER,
 
371
                                  buttons=(Gtk.STOCK_OK, Gtk.ResponseType.OK,
 
372
                                           Gtk.STOCK_CANCEL,
 
373
                                           Gtk.ResponseType.CANCEL,))
 
374
        try:
 
375
            result = d.run()
 
376
            if result != Gtk.ResponseType.OK:
 
377
                raise SelectCancelled()
 
378
            return d.get_current_folder_uri()
 
379
        finally:
 
380
            d.destroy()
 
381
 
 
382
    def _merge_successful(self):
 
383
        # No conflicts found.
 
384
        info_dialog(_i18n('Merge successful'),
 
385
                    _i18n('All changes applied successfully.'))
 
386
 
 
387
    def _conflicts(self):
 
388
        warning_dialog(_i18n('Conflicts encountered'),
 
389
                       _i18n('Please resolve the conflicts manually'
 
390
                             ' before committing.'))
 
391
 
 
392
    def _handle_error(self, e):
 
393
        error_dialog('Error', str(e))
 
394
 
 
395
    def _get_save_path(self, basename):
 
396
        d = Gtk.FileChooserDialog('Save As', self,
 
397
                                  Gtk.FileChooserAction.SAVE,
 
398
                                  buttons=(Gtk.STOCK_OK, Gtk.ResponseType.OK,
 
399
                                           Gtk.STOCK_CANCEL,
 
400
                                           Gtk.ResponseType.CANCEL,))
 
401
        d.set_current_name(basename)
 
402
        try:
 
403
            result = d.run()
 
404
            if result != Gtk.ResponseType.OK:
 
405
                raise SelectCancelled()
 
406
            return urlutils.local_path_from_url(d.get_uri())
 
407
        finally:
 
408
            d.destroy()
457
409
 
458
410
    def set_diff(self, description, rev_tree, parent_tree):
459
411
        """Set the differences showed by this window.
468
420
        self.diff.set_file(file_path)
469
421
 
470
422
 
471
 
class MergeDirectiveWindow(DiffWindow):
472
 
 
473
 
    def __init__(self, directive, path):
474
 
        DiffWindow.__init__(self, None)
475
 
        self._merge_target = None
 
423
class DiffController(object):
 
424
 
 
425
    def __init__(self, path, patch, window=None, allow_dirty=False):
 
426
        self.path = path
 
427
        self.patch = patch
 
428
        self.allow_dirty = allow_dirty
 
429
        if window is None:
 
430
            window = DiffWindow(operations=self._provide_operations())
 
431
            self.initialize_window(window)
 
432
        self.window = window
 
433
 
 
434
    def initialize_window(self, window):
 
435
        window.diff.set_diff_text_sections(self.get_diff_sections())
 
436
        window.set_title(self.path + " - diff")
 
437
 
 
438
    def get_diff_sections(self):
 
439
        yield "Complete Diff", None, ''.join(self.patch)
 
440
        # allow_dirty was added to parse_patches in bzrlib 2.2b1
 
441
        if 'allow_dirty' in inspect.getargspec(parse_patches).args:
 
442
            patches = parse_patches(self.patch, allow_dirty=self.allow_dirty)
 
443
        else:
 
444
            patches = parse_patches(self.patch)
 
445
        for patch in patches:
 
446
            oldname = patch.oldname.split('\t')[0]
 
447
            newname = patch.newname.split('\t')[0]
 
448
            yield oldname, newname, str(patch)
 
449
 
 
450
    def perform_save(self, window):
 
451
        try:
 
452
            save_path = self.window._get_save_path(osutils.basename(self.path))
 
453
        except SelectCancelled:
 
454
            return
 
455
        source = open(self.path, 'rb')
 
456
        try:
 
457
            target = open(save_path, 'wb')
 
458
            try:
 
459
                osutils.pumpfile(source, target)
 
460
            finally:
 
461
                target.close()
 
462
        finally:
 
463
            source.close()
 
464
 
 
465
    def _provide_operations(self):
 
466
        return [('Save', self.perform_save)]
 
467
 
 
468
 
 
469
class MergeDirectiveController(DiffController):
 
470
 
 
471
    def __init__(self, path, directive, window=None):
 
472
        super(MergeDirectiveController, self).__init__(
 
473
            path, directive.patch.splitlines(True), window)
476
474
        self.directive = directive
477
 
        self.path = path
478
 
 
479
 
    def _get_button_bar(self):
480
 
        """The button bar has only the Merge button"""
481
 
        merge_button = gtk.Button('Merge')
482
 
        merge_button.show()
483
 
        merge_button.set_relief(gtk.RELIEF_NONE)
484
 
        merge_button.connect("clicked", self.perform_merge)
485
 
 
486
 
        save_button = gtk.Button('Save')
487
 
        save_button.show()
488
 
        save_button.set_relief(gtk.RELIEF_NONE)
489
 
        save_button.connect("clicked", self.perform_save)
490
 
 
491
 
        hbox = gtk.HButtonBox()
492
 
        hbox.set_layout(gtk.BUTTONBOX_START)
493
 
        hbox.pack_start(merge_button, expand=False, fill=True)
494
 
        hbox.pack_start(save_button, expand=False, fill=True)
495
 
        hbox.show()
496
 
        return hbox
 
475
        self.merge_target = None
 
476
 
 
477
    def _provide_operations(self):
 
478
        return [('Merge', self.perform_merge), ('Save', self.perform_save)]
497
479
 
498
480
    def perform_merge(self, window):
499
 
        try:
500
 
            tree = self._get_merge_target()
501
 
        except SelectCancelled:
502
 
            return
 
481
        if self.merge_target is None:
 
482
            try:
 
483
                self.merge_target = self.window._get_merge_target()
 
484
            except SelectCancelled:
 
485
                return
 
486
        tree = workingtree.WorkingTree.open(self.merge_target)
503
487
        tree.lock_write()
504
488
        try:
505
489
            try:
506
 
                merger, verified = _mod_merge.Merger.from_mergeable(tree,
507
 
                    self.directive, progress.DummyProgress())
508
 
                merger.check_basis(True)
 
490
                if tree.has_changes():
 
491
                    raise errors.UncommittedChanges(tree)
 
492
                merger, verified = _mod_merge.Merger.from_mergeable(
 
493
                    tree, self.directive, pb=None)
509
494
                merger.merge_type = _mod_merge.Merge3Merger
510
495
                conflict_count = merger.do_merge()
511
496
                merger.set_pending()
512
497
                if conflict_count == 0:
513
 
                    # No conflicts found.
514
 
                    info_dialog(_i18n('Merge successful'),
515
 
                                _i18n('All changes applied successfully.'))
 
498
                    self.window._merge_successful()
516
499
                else:
 
500
                    self.window._conflicts()
517
501
                    # There are conflicts to be resolved.
518
 
                    warning_dialog(_i18n('Conflicts encountered'),
519
 
                                   _i18n('Please resolve the conflicts manually'
520
 
                                         ' before committing.'))
521
 
                self.destroy()
 
502
                self.window.destroy()
522
503
            except Exception, e:
523
 
                error_dialog('Error', str(e))
 
504
                self.window._handle_error(e)
524
505
        finally:
525
506
            tree.unlock()
526
507
 
527
 
    def _get_merge_target(self):
528
 
        if self._merge_target is not None:
529
 
            return self._merge_target
530
 
        d = gtk.FileChooserDialog('Merge branch', self,
531
 
                                  gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER,
532
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
533
 
                                           gtk.STOCK_CANCEL,
534
 
                                           gtk.RESPONSE_CANCEL,))
535
 
        try:
536
 
            result = d.run()
537
 
            if result != gtk.RESPONSE_OK:
538
 
                raise SelectCancelled()
539
 
            uri = d.get_current_folder_uri()
540
 
        finally:
541
 
            d.destroy()
542
 
        return workingtree.WorkingTree.open(uri)
543
 
 
544
 
    def perform_save(self, window):
545
 
        d = gtk.FileChooserDialog('Save As', self,
546
 
                                  gtk.FILE_CHOOSER_ACTION_SAVE,
547
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
548
 
                                           gtk.STOCK_CANCEL,
549
 
                                           gtk.RESPONSE_CANCEL,))
550
 
        d.set_current_name(osutils.basename(self.path))
551
 
        try:
552
 
            try:
553
 
                result = d.run()
554
 
                if result != gtk.RESPONSE_OK:
555
 
                    raise SelectCancelled()
556
 
                uri = d.get_uri()
557
 
            finally:
558
 
                d.destroy()
559
 
        except SelectCancelled:
560
 
            return
561
 
        source = open(self.path, 'rb')
562
 
        try:
563
 
            target = open(urlutils.local_path_from_url(uri), 'wb')
564
 
            try:
565
 
                target.write(source.read())
566
 
            finally:
567
 
                target.close()
568
 
        finally:
569
 
            source.close()
570
 
 
571
508
 
572
509
def iter_changes_to_status(source, target):
573
510
    """Determine the differences between trees.
585
522
    renamed_and_modified = 'renamed and modified'
586
523
    modified = 'modified'
587
524
    kind_changed = 'kind changed'
 
525
    missing = 'missing'
588
526
 
589
527
    # TODO: Handle metadata changes
590
528
 
605
543
                    source_marker = ''
606
544
                else:
607
545
                    source_marker = osutils.kind_marker(kinds[0])
 
546
 
608
547
                if kinds[1] is None:
609
 
                    assert kinds[0] is not None
610
 
                    marker = osutils.kind_marker(kinds[0])
 
548
                    if kinds[0] is None:
 
549
                        # We assume bzr will flag only files in that case,
 
550
                        # there may be a bzr bug there as only files seems to
 
551
                        # not receive any kind.
 
552
                        marker = osutils.kind_marker('file')
 
553
                    else:
 
554
                        marker = osutils.kind_marker(kinds[0])
611
555
                else:
612
556
                    marker = osutils.kind_marker(kinds[1])
613
557
 
615
559
                if real_path is None:
616
560
                    real_path = paths[0]
617
561
                assert real_path is not None
618
 
                display_path = real_path + marker
619
562
 
620
563
                present_source = versioned[0] and kinds[0] is not None
621
564
                present_target = versioned[1] and kinds[1] is not None
622
565
 
623
 
                if present_source != present_target:
 
566
                if kinds[0] is None and kinds[1] is None:
 
567
                    change_type = missing
 
568
                    display_path = real_path + marker
 
569
                elif present_source != present_target:
624
570
                    if present_target:
625
571
                        change_type = added
626
572
                    else:
627
573
                        assert present_source
628
574
                        change_type = removed
 
575
                    display_path = real_path + marker
629
576
                elif names[0] != names[1] or parent_ids[0] != parent_ids[1]:
630
577
                    # Renamed
631
578
                    if changed_content or executables[0] != executables[1]:
639
586
                    change_type = kind_changed
640
587
                    display_path = (paths[0] + source_marker
641
588
                                    + ' => ' + paths[1] + marker)
642
 
                elif changed_content is True or executables[0] != executables[1]:
 
589
                elif changed_content or executables[0] != executables[1]:
643
590
                    change_type = modified
 
591
                    display_path = real_path + marker
644
592
                else:
645
593
                    assert False, "How did we get here?"
646
594