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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
 
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
44
39
from bzrlib.plugins.gtk.window import Window
45
 
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
46
48
 
47
49
 
48
50
class SelectCancelled(Exception):
50
52
    pass
51
53
 
52
54
 
53
 
class DiffFileView(gtk.ScrolledWindow):
 
55
class DiffFileView(Gtk.ScrolledWindow):
54
56
    """Window for displaying diffs from a diff file"""
55
57
 
 
58
    SHOW_WIDGETS = True
 
59
 
56
60
    def __init__(self):
57
 
        gtk.ScrolledWindow.__init__(self)
 
61
        super(DiffFileView, self).__init__()
58
62
        self.construct()
59
63
        self._diffs = {}
60
64
 
61
65
    def construct(self):
62
 
        self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
63
 
        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)
64
68
 
65
69
        if have_gtksourceview:
66
 
            self.buffer = gtksourceview.SourceBuffer()
67
 
            slm = gtksourceview.SourceLanguagesManager()
68
 
            gsl = slm.get_language_from_mime_type("text/x-patch")
69
 
            if have_gconf:
70
 
                self.apply_gedit_colors(gsl)
71
 
            self.apply_colordiff_colors(gsl)
72
 
            self.buffer.set_language(gsl)
73
 
            self.buffer.set_highlight(True)
74
 
 
75
 
            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)
76
76
        else:
77
 
            self.buffer = gtk.TextBuffer()
78
 
            sourceview = gtk.TextView(self.buffer)
79
 
 
80
 
        sourceview.set_editable(False)
81
 
        sourceview.modify_font(pango.FontDescription("Monospace"))
82
 
        self.add(sourceview)
83
 
        sourceview.show()
84
 
 
85
 
    @staticmethod
86
 
    def apply_gedit_colors(lang):
87
 
        """Set style for lang to that specified in gedit configuration.
88
 
 
89
 
        This method needs the gconf module.
90
 
 
91
 
        :param lang: a gtksourceview.SourceLanguage object.
92
 
        """
93
 
        GEDIT_SYNTAX_PATH = '/apps/gedit-2/preferences/syntax_highlighting'
94
 
        GEDIT_LANG_PATH = GEDIT_SYNTAX_PATH + '/' + lang.get_id()
95
 
 
96
 
        client = gconf.client_get_default()
97
 
        client.add_dir(GEDIT_LANG_PATH, gconf.CLIENT_PRELOAD_NONE)
98
 
 
99
 
        for tag in lang.get_tags():
100
 
            tag_id = tag.get_id()
101
 
            gconf_key = GEDIT_LANG_PATH + '/' + tag_id
102
 
            style_string = client.get_string(gconf_key)
103
 
 
104
 
            if style_string is None:
105
 
                continue
106
 
 
107
 
            # function to get a bool from a string that's either '0' or '1'
108
 
            string_bool = lambda x: bool(int(x))
109
 
 
110
 
            # style_string is a string like "2/#FFCCAA/#000000/0/1/0/0"
111
 
            # values are: mask, fg, bg, italic, bold, underline, strike
112
 
            # this packs them into (str_value, attr_name, conv_func) tuples
113
 
            items = zip(style_string.split('/'), ['mask', 'foreground',
114
 
                'background', 'italic', 'bold', 'underline', 'strikethrough' ],
115
 
                [ int, gtk.gdk.color_parse, gtk.gdk.color_parse, string_bool,
116
 
                    string_bool, string_bool, string_bool ]
117
 
            )
118
 
 
119
 
            style = gtksourceview.SourceTagStyle()
120
 
 
121
 
            # XXX The mask attribute controls whether the present values of
122
 
            # foreground and background color should in fact be used. Ideally
123
 
            # (and that's what gedit does), one could set all three attributes,
124
 
            # and let the TagStyle object figure out which colors to use.
125
 
            # However, in the GtkSourceview python bindings, the mask attribute
126
 
            # is read-only, and it's derived instead from the colors being
127
 
            # set or not. This means that we have to sometimes refrain from
128
 
            # setting fg or bg colors, depending on the value of the mask.
129
 
            # This code could go away if mask were writable.
130
 
            mask = int(items[0][0])
131
 
            if not (mask & 1): # GTK_SOURCE_TAG_STYLE_USE_BACKGROUND
132
 
                items[2:3] = []
133
 
            if not (mask & 2): # GTK_SOURCE_TAG_STYLE_USE_FOREGROUND
134
 
                items[1:2] = []
135
 
            items[0:1] = [] # skip the mask unconditionally
136
 
 
137
 
            for value, attr, func in items:
138
 
                try:
139
 
                    value = func(value)
140
 
                except ValueError:
141
 
                    warning('gconf key %s contains an invalid value: %s'
142
 
                            % gconf_key, value)
143
 
                else:
144
 
                    setattr(style, attr, value)
145
 
 
146
 
            lang.set_tag_style(tag_id, style)
147
 
 
148
 
    @classmethod
149
 
    def apply_colordiff_colors(klass, lang):
150
 
        """Set style colors for lang using the colordiff configuration file.
151
 
 
152
 
        Both ~/.colordiffrc and ~/.colordiffrc.bzr-gtk are read.
153
 
 
154
 
        :param lang: a "Diff" gtksourceview.SourceLanguage object.
155
 
        """
156
 
        colors = {}
157
 
 
158
 
        for f in ('~/.colordiffrc', '~/.colordiffrc.bzr-gtk'):
159
 
            f = os.path.expanduser(f)
160
 
            if os.path.exists(f):
161
 
                try:
162
 
                    f = file(f)
163
 
                except IOError, e:
164
 
                    warning('could not open file %s: %s' % (f, str(e)))
165
 
                else:
166
 
                    colors.update(klass.parse_colordiffrc(f))
167
 
                    f.close()
168
 
 
169
 
        if not colors:
170
 
            # ~/.colordiffrc does not exist
171
 
            return
172
 
 
173
 
        mapping = {
174
 
                # map GtkSourceView tags to colordiff names
175
 
                # since GSV is richer, accept new names for extra bits,
176
 
                # defaulting to old names if they're not present
177
 
                'Added@32@line': ['newtext'],
178
 
                'Removed@32@line': ['oldtext'],
179
 
                'Location': ['location', 'diffstuff'],
180
 
                'Diff@32@file': ['file', 'diffstuff'],
181
 
                'Special@32@case': ['specialcase', 'diffstuff'],
182
 
        }
183
 
 
184
 
        for tag in lang.get_tags():
185
 
            tag_id = tag.get_id()
186
 
            keys = mapping.get(tag_id, [])
187
 
            color = None
188
 
 
189
 
            for key in keys:
190
 
                color = colors.get(key, None)
191
 
                if color is not None:
192
 
                    break
193
 
 
194
 
            if color is None:
195
 
                continue
196
 
 
197
 
            style = gtksourceview.SourceTagStyle()
198
 
            try:
199
 
                style.foreground = gtk.gdk.color_parse(color)
200
 
            except ValueError:
201
 
                warning('not a valid color: %s' % color)
202
 
            else:
203
 
                lang.set_tag_style(tag_id, style)
204
 
 
205
 
    @staticmethod
206
 
    def parse_colordiffrc(fileobj):
207
 
        """Parse fileobj as a colordiff configuration file.
208
 
 
209
 
        :return: A dict with the key -> value pairs.
210
 
        """
211
 
        colors = {}
212
 
        for line in fileobj:
213
 
            if re.match(r'^\s*#', line):
214
 
                continue
215
 
            if '=' not in line:
216
 
                continue
217
 
            key, val = line.split('=', 1)
218
 
            colors[key.strip()] = val.strip()
219
 
        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()
220
85
 
221
86
    def set_trees(self, rev_tree, parent_tree):
222
87
        self.rev_tree = rev_tree
227
92
#        self.parent_tree.lock_read()
228
93
#        self.rev_tree.lock_read()
229
94
#        try:
230
 
#            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)
231
97
#            self.path_to_status = {}
232
98
#            self.path_to_diff = {}
233
99
#            source_inv = self.parent_tree.inventory
234
100
#            target_inv = self.rev_tree.inventory
235
101
#            for (file_id, real_path, change_type, display_path) in self.delta:
236
 
#                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)
237
104
#                if change_type in ('modified', 'renamed and modified'):
238
105
#                    source_ie = source_inv[file_id]
239
106
#                    target_ie = target_inv[file_id]
241
108
#                    source_ie.diff(internal_diff, *old path, *old_tree,
242
109
#                                   *new_path, target_ie, self.rev_tree,
243
110
#                                   sio)
244
 
#                    self.path_to_diff[real_path] = 
 
111
#                    self.path_to_diff[real_path] =
245
112
#
246
113
#        finally:
247
114
#            self.rev_tree.unlock()
261
128
    """This is the soft and chewy filling for a DiffWindow."""
262
129
 
263
130
    def __init__(self):
264
 
        DiffFileView.__init__(self)
 
131
        super(DiffView, self).__init__()
265
132
        self.rev_tree = None
266
133
        self.parent_tree = None
267
134
 
291
158
        self.buffer.set_text(decoded.encode('UTF-8'))
292
159
 
293
160
 
294
 
class DiffWidget(gtk.HPaned):
 
161
class DiffWidget(Gtk.HPaned):
295
162
    """Diff widget
296
163
 
297
164
    """
 
165
 
 
166
    SHOW_WIDGETS = True
 
167
 
298
168
    def __init__(self):
299
169
        super(DiffWidget, self).__init__()
300
170
 
301
171
        # The file hierarchy: a scrollable treeview
302
 
        scrollwin = gtk.ScrolledWindow()
303
 
        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
304
 
        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)
305
175
        self.pack1(scrollwin)
306
 
        scrollwin.show()
 
176
        if self.SHOW_WIDGETS:
 
177
            scrollwin.show()
307
178
 
308
 
        self.model = gtk.TreeStore(str, str)
309
 
        self.treeview = gtk.TreeView(self.model)
 
179
        self.model = Gtk.TreeStore(str, str)
 
180
        self.treeview = Gtk.TreeView(model=self.model)
310
181
        self.treeview.set_headers_visible(False)
311
182
        self.treeview.set_search_column(1)
312
183
        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
313
184
        scrollwin.add(self.treeview)
314
 
        self.treeview.show()
 
185
        if self.SHOW_WIDGETS:
 
186
            self.treeview.show()
315
187
 
316
 
        cell = gtk.CellRendererText()
 
188
        cell = Gtk.CellRendererText()
317
189
        cell.set_property("width-chars", 20)
318
 
        column = gtk.TreeViewColumn()
319
 
        column.pack_start(cell, expand=True)
 
190
        column = Gtk.TreeViewColumn()
 
191
        column.pack_start(cell, True)
320
192
        column.add_attribute(cell, "text", 0)
321
193
        self.treeview.append_column(column)
322
194
 
327
199
        """
328
200
        # The diffs of the  selected file: a scrollable source or
329
201
        # text view
330
 
        self.diff_view = DiffFileView()
331
 
        self.diff_view.show()
332
 
        self.pack2(self.diff_view)
333
 
        self.model.append(None, [ "Complete Diff", "" ])
334
 
        self.diff_view._diffs[None] = ''.join(lines)
335
 
        for patch in parse_patches(lines):
336
 
            oldname = patch.oldname.split('\t')[0]
337
 
            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 = ''
338
213
            self.model.append(None, [oldname, newname])
339
 
            self.diff_view._diffs[newname] = str(patch)
340
214
        self.diff_view.show_diff(None)
341
215
 
342
216
    def set_diff(self, rev_tree, parent_tree):
345
219
        Compares the two trees and populates the window with the
346
220
        differences.
347
221
        """
348
 
        self.diff_view = DiffView()
349
 
        self.pack2(self.diff_view)
350
 
        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()
351
227
        self.diff_view.set_trees(rev_tree, parent_tree)
352
228
        self.rev_tree = rev_tree
353
229
        self.parent_tree = parent_tree
355
231
        self.model.clear()
356
232
        delta = self.rev_tree.changes_from(self.parent_tree)
357
233
 
358
 
        self.model.append(None, [ "Complete Diff", "" ])
 
234
        self.model.append(None, ["Complete Diff", ""])
359
235
 
360
236
        if len(delta.added):
361
 
            titer = self.model.append(None, [ "Added", None ])
 
237
            titer = self.model.append(None, ["Added", None])
362
238
            for path, id, kind in delta.added:
363
 
                self.model.append(titer, [ path, path ])
 
239
                self.model.append(titer, [path, path])
364
240
 
365
241
        if len(delta.removed):
366
 
            titer = self.model.append(None, [ "Removed", None ])
 
242
            titer = self.model.append(None, ["Removed", None])
367
243
            for path, id, kind in delta.removed:
368
 
                self.model.append(titer, [ path, path ])
 
244
                self.model.append(titer, [path, path])
369
245
 
370
246
        if len(delta.renamed):
371
 
            titer = self.model.append(None, [ "Renamed", None ])
 
247
            titer = self.model.append(None, ["Renamed", None])
372
248
            for oldpath, newpath, id, kind, text_modified, meta_modified \
373
249
                    in delta.renamed:
374
 
                self.model.append(titer, [ oldpath, newpath ])
 
250
                self.model.append(titer, [oldpath, newpath])
375
251
 
376
252
        if len(delta.modified):
377
 
            titer = self.model.append(None, [ "Modified", None ])
 
253
            titer = self.model.append(None, ["Modified", None])
378
254
            for path, id, kind, text_modified, meta_modified in delta.modified:
379
 
                self.model.append(titer, [ path, path ])
 
255
                self.model.append(titer, [path, path])
380
256
 
381
257
        self.treeview.expand_all()
 
258
        self.diff_view.show_diff(None)
382
259
 
383
260
    def set_file(self, file_path):
384
261
        """Select the current file to display"""
389
266
                    tv_path = child.path
390
267
                    break
391
268
        if tv_path is None:
392
 
            raise NoSuchFile(file_path)
393
 
        self.treeview.set_cursor(tv_path)
 
269
            raise errors.NoSuchFile(file_path)
 
270
        self.treeview.set_cursor(tv_path, None, False)
394
271
        self.treeview.scroll_to_cell(tv_path)
395
272
 
396
273
    def _treeview_cursor_cb(self, *args):
397
274
        """Callback for when the treeview cursor changes."""
398
275
        (path, col) = self.treeview.get_cursor()
399
 
        specific_files = [ self.model[path][1] ]
400
 
        if specific_files == [ None ]:
401
 
            return
402
 
        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 == [""]:
403
282
            specific_files = None
404
283
 
405
284
        self.diff_view.show_diff(specific_files)
406
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
 
407
293
 
408
294
class DiffWindow(Window):
409
295
    """Diff window.
412
298
    differences between two revisions on a branch.
413
299
    """
414
300
 
415
 
    def __init__(self, parent=None):
416
 
        Window.__init__(self, parent)
 
301
    SHOW_WIDGETS = True
 
302
 
 
303
    def __init__(self, parent=None, operations=None):
 
304
        super(DiffWindow, self).__init__(parent=parent)
417
305
        self.set_border_width(0)
418
 
        self.set_title("bzrk diff")
 
306
        self.set_title("bzr diff")
419
307
 
420
308
        # Use two thirds of the screen by default
421
309
        screen = self.get_screen()
423
311
        width = int(monitor.width * 0.66)
424
312
        height = int(monitor.height * 0.66)
425
313
        self.set_default_size(width, height)
426
 
 
427
 
        self.construct()
428
 
 
429
 
    def construct(self):
 
314
        self.construct(operations)
 
315
 
 
316
    def construct(self, operations):
430
317
        """Construct the window contents."""
431
 
        self.vbox = gtk.VBox()
 
318
        self.vbox = Gtk.VBox()
432
319
        self.add(self.vbox)
433
 
        self.vbox.show()
434
 
        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)
435
330
        if hbox is not None:
436
 
            self.vbox.pack_start(hbox, expand=False, fill=True)
437
 
        self.diff = DiffWidget()
438
 
        self.vbox.add(self.diff)
439
 
        self.diff.show_all()
440
 
 
441
 
    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):
442
349
        """Return a button bar to use.
443
350
 
444
351
        :return: None, meaning that no button bar will be used.
445
352
        """
446
 
        return None
447
 
 
448
 
    def set_diff_text(self, description, lines):
449
 
        """Set the diff from a text.
450
 
 
451
 
        The diff must be in unified diff format, and will be parsed to
452
 
        determine filenames.
453
 
        """
454
 
        self.diff.set_diff_text(lines)
455
 
        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()
456
409
 
457
410
    def set_diff(self, description, rev_tree, parent_tree):
458
411
        """Set the differences showed by this window.
467
420
        self.diff.set_file(file_path)
468
421
 
469
422
 
470
 
class MergeDirectiveWindow(DiffWindow):
471
 
 
472
 
    def __init__(self, directive, path):
473
 
        DiffWindow.__init__(self, None)
474
 
        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)
475
474
        self.directive = directive
476
 
        self.path = path
477
 
 
478
 
    def _get_button_bar(self):
479
 
        """The button bar has only the Merge button"""
480
 
        merge_button = gtk.Button('Merge')
481
 
        merge_button.show()
482
 
        merge_button.set_relief(gtk.RELIEF_NONE)
483
 
        merge_button.connect("clicked", self.perform_merge)
484
 
 
485
 
        save_button = gtk.Button('Save')
486
 
        save_button.show()
487
 
        save_button.set_relief(gtk.RELIEF_NONE)
488
 
        save_button.connect("clicked", self.perform_save)
489
 
 
490
 
        hbox = gtk.HButtonBox()
491
 
        hbox.set_layout(gtk.BUTTONBOX_START)
492
 
        hbox.pack_start(merge_button, expand=False, fill=True)
493
 
        hbox.pack_start(save_button, expand=False, fill=True)
494
 
        hbox.show()
495
 
        return hbox
 
475
        self.merge_target = None
 
476
 
 
477
    def _provide_operations(self):
 
478
        return [('Merge', self.perform_merge), ('Save', self.perform_save)]
496
479
 
497
480
    def perform_merge(self, window):
498
 
        try:
499
 
            tree = self._get_merge_target()
500
 
        except SelectCancelled:
501
 
            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)
502
487
        tree.lock_write()
503
488
        try:
504
489
            try:
505
 
                merger, verified = _mod_merge.Merger.from_mergeable(tree,
506
 
                    self.directive, progress.DummyProgress())
507
 
                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)
508
494
                merger.merge_type = _mod_merge.Merge3Merger
509
495
                conflict_count = merger.do_merge()
510
496
                merger.set_pending()
511
497
                if conflict_count == 0:
512
 
                    # No conflicts found.
513
 
                    info_dialog(_('Merge successful'),
514
 
                                _('All changes applied successfully.'))
 
498
                    self.window._merge_successful()
515
499
                else:
 
500
                    self.window._conflicts()
516
501
                    # There are conflicts to be resolved.
517
 
                    warning_dialog(_('Conflicts encountered'),
518
 
                                   _('Please resolve the conflicts manually'
519
 
                                     ' before committing.'))
520
 
                self.destroy()
 
502
                self.window.destroy()
521
503
            except Exception, e:
522
 
                error_dialog('Error', str(e))
 
504
                self.window._handle_error(e)
523
505
        finally:
524
506
            tree.unlock()
525
507
 
526
 
    def _get_merge_target(self):
527
 
        if self._merge_target is not None:
528
 
            return self._merge_target
529
 
        d = gtk.FileChooserDialog('Merge branch', self,
530
 
                                  gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER,
531
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
532
 
                                           gtk.STOCK_CANCEL,
533
 
                                           gtk.RESPONSE_CANCEL,))
534
 
        try:
535
 
            result = d.run()
536
 
            if result != gtk.RESPONSE_OK:
537
 
                raise SelectCancelled()
538
 
            uri = d.get_current_folder_uri()
539
 
        finally:
540
 
            d.destroy()
541
 
        return workingtree.WorkingTree.open(uri)
542
 
 
543
 
    def perform_save(self, window):
544
 
        d = gtk.FileChooserDialog('Save As', self,
545
 
                                  gtk.FILE_CHOOSER_ACTION_SAVE,
546
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
547
 
                                           gtk.STOCK_CANCEL,
548
 
                                           gtk.RESPONSE_CANCEL,))
549
 
        d.set_current_name(osutils.basename(self.path))
550
 
        try:
551
 
            try:
552
 
                result = d.run()
553
 
                if result != gtk.RESPONSE_OK:
554
 
                    raise SelectCancelled()
555
 
                uri = d.get_uri()
556
 
            finally:
557
 
                d.destroy()
558
 
        except SelectCancelled:
559
 
            return
560
 
        source = open(self.path, 'rb')
561
 
        try:
562
 
            target = open(urlutils.local_path_from_url(uri), 'wb')
563
 
            try:
564
 
                target.write(source.read())
565
 
            finally:
566
 
                target.close()
567
 
        finally:
568
 
            source.close()
569
 
 
570
508
 
571
509
def iter_changes_to_status(source, target):
572
510
    """Determine the differences between trees.
584
522
    renamed_and_modified = 'renamed and modified'
585
523
    modified = 'modified'
586
524
    kind_changed = 'kind changed'
 
525
    missing = 'missing'
587
526
 
588
527
    # TODO: Handle metadata changes
589
528
 
604
543
                    source_marker = ''
605
544
                else:
606
545
                    source_marker = osutils.kind_marker(kinds[0])
 
546
 
607
547
                if kinds[1] is None:
608
 
                    assert kinds[0] is not None
609
 
                    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])
610
555
                else:
611
556
                    marker = osutils.kind_marker(kinds[1])
612
557
 
614
559
                if real_path is None:
615
560
                    real_path = paths[0]
616
561
                assert real_path is not None
617
 
                display_path = real_path + marker
618
562
 
619
563
                present_source = versioned[0] and kinds[0] is not None
620
564
                present_target = versioned[1] and kinds[1] is not None
621
565
 
622
 
                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:
623
570
                    if present_target:
624
571
                        change_type = added
625
572
                    else:
626
573
                        assert present_source
627
574
                        change_type = removed
 
575
                    display_path = real_path + marker
628
576
                elif names[0] != names[1] or parent_ids[0] != parent_ids[1]:
629
577
                    # Renamed
630
578
                    if changed_content or executables[0] != executables[1]:
638
586
                    change_type = kind_changed
639
587
                    display_path = (paths[0] + source_marker
640
588
                                    + ' => ' + paths[1] + marker)
641
 
                elif changed_content is True or executables[0] != executables[1]:
 
589
                elif changed_content or executables[0] != executables[1]:
642
590
                    change_type = modified
 
591
                    display_path = real_path + marker
643
592
                else:
644
593
                    assert False, "How did we get here?"
645
594