/b-gtk/fix-viz

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  • Committer: Jelmer Vernooij
  • Date: 2008-03-14 02:13:27 UTC
  • mto: (452.2.2 trunk)
  • mto: This revision was merged to the branch mainline in revision 453.
  • Revision ID: jelmer@samba.org-20080314021327-q1pabtpneeasz8qv
Fix support for default value in BranchSelectionDialog.

Show diffs side-by-side

added added

removed removed

Lines of Context:
 
1
# -*- coding: UTF-8 -*-
1
2
"""Difference window.
2
3
 
3
4
This module contains the code to manage the diff window which shows
4
5
the changes made between two revisions on a branch.
5
6
"""
6
7
 
7
 
__copyright__ = "Copyright 2005 Canonical Ltd."
 
8
__copyright__ = "Copyright © 2005 Canonical Ltd."
8
9
__author__    = "Scott James Remnant <scott@ubuntu.com>"
9
10
 
10
11
 
17
18
import os
18
19
import re
19
20
import sys
20
 
try:
21
 
    from xml.etree.ElementTree import Element, SubElement, tostring
22
 
except ImportError:
23
 
    from elementtree.ElementTree import Element, SubElement, tostring
24
21
 
25
22
try:
26
 
    import gtksourceview2
 
23
    import gtksourceview
27
24
    have_gtksourceview = True
28
25
except ImportError:
29
26
    have_gtksourceview = False
34
31
    have_gconf = False
35
32
 
36
33
from bzrlib import (
37
 
    errors,
38
34
    merge as _mod_merge,
39
35
    osutils,
 
36
    progress,
40
37
    urlutils,
41
38
    workingtree,
42
39
)
43
40
from bzrlib.diff import show_diff_trees, internal_diff
 
41
from bzrlib.errors import NoSuchFile
44
42
from bzrlib.patches import parse_patches
45
43
from bzrlib.trace import warning
46
 
from bzrlib.plugins.gtk import _i18n
47
44
from bzrlib.plugins.gtk.window import Window
48
45
from dialog import error_dialog, info_dialog, warning_dialog
49
46
 
50
47
 
51
 
def fallback_guess_language(slm, content_type):
52
 
    for lang_id in slm.get_language_ids():
53
 
        lang = slm.get_language(lang_id)
54
 
        if "text/x-patch" in lang.get_mime_types():
55
 
            return lang
56
 
    return None
57
 
 
58
 
 
59
48
class SelectCancelled(Exception):
60
49
 
61
50
    pass
74
63
        self.set_shadow_type(gtk.SHADOW_IN)
75
64
 
76
65
        if have_gtksourceview:
77
 
            self.buffer = gtksourceview2.Buffer()
78
 
            slm = gtksourceview2.LanguageManager()
79
 
            guess_language = getattr(gtksourceview2.LanguageManager, 
80
 
                "guess_language", fallback_guess_language)
81
 
            gsl = guess_language(slm, content_type="text/x-patch")
 
66
            self.buffer = gtksourceview.SourceBuffer()
 
67
            slm = gtksourceview.SourceLanguagesManager()
 
68
            gsl = slm.get_language_from_mime_type("text/x-patch")
82
69
            if have_gconf:
83
 
                self.apply_gedit_colors(self.buffer)
84
 
            self.apply_colordiff_colors(self.buffer)
 
70
                self.apply_gedit_colors(gsl)
 
71
            self.apply_colordiff_colors(gsl)
85
72
            self.buffer.set_language(gsl)
86
 
            self.buffer.set_highlight_syntax(True)
 
73
            self.buffer.set_highlight(True)
87
74
 
88
 
            self.sourceview = gtksourceview2.View(self.buffer)
 
75
            sourceview = gtksourceview.SourceView(self.buffer)
89
76
        else:
90
77
            self.buffer = gtk.TextBuffer()
91
 
            self.sourceview = gtk.TextView(self.buffer)
 
78
            sourceview = gtk.TextView(self.buffer)
92
79
 
93
 
        self.sourceview.set_editable(False)
94
 
        self.sourceview.modify_font(pango.FontDescription("Monospace"))
95
 
        self.add(self.sourceview)
96
 
        self.sourceview.show()
 
80
        sourceview.set_editable(False)
 
81
        sourceview.modify_font(pango.FontDescription("Monospace"))
 
82
        self.add(sourceview)
 
83
        sourceview.show()
97
84
 
98
85
    @staticmethod
99
 
    def apply_gedit_colors(buf):
100
 
        """Set style to that specified in gedit configuration.
 
86
    def apply_gedit_colors(lang):
 
87
        """Set style for lang to that specified in gedit configuration.
101
88
 
102
89
        This method needs the gconf module.
103
90
 
104
 
        :param buf: a gtksourceview2.Buffer object.
 
91
        :param lang: a gtksourceview.SourceLanguage object.
105
92
        """
106
 
        GEDIT_SCHEME_PATH = '/apps/gedit-2/preferences/editor/colors/scheme'
 
93
        GEDIT_SYNTAX_PATH = '/apps/gedit-2/preferences/syntax_highlighting'
 
94
        GEDIT_LANG_PATH = GEDIT_SYNTAX_PATH + '/' + lang.get_id()
107
95
 
108
96
        client = gconf.client_get_default()
109
 
        style_scheme_name = client.get_string(GEDIT_SCHEME_PATH)
110
 
        if style_scheme_name is not None:
111
 
            style_scheme = gtksourceview2.StyleSchemeManager().get_scheme(style_scheme_name)
112
 
            
113
 
            buf.set_style_scheme(style_scheme)
 
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)
114
147
 
115
148
    @classmethod
116
 
    def apply_colordiff_colors(klass, buf):
 
149
    def apply_colordiff_colors(klass, lang):
117
150
        """Set style colors for lang using the colordiff configuration file.
118
151
 
119
152
        Both ~/.colordiffrc and ~/.colordiffrc.bzr-gtk are read.
120
153
 
121
 
        :param buf: a "Diff" gtksourceview2.Buffer object.
 
154
        :param lang: a "Diff" gtksourceview.SourceLanguage object.
122
155
        """
123
 
        scheme_manager = gtksourceview2.StyleSchemeManager()
124
 
        style_scheme = scheme_manager.get_scheme('colordiff')
125
 
        
126
 
        # if style scheme not found, we'll generate it from colordiffrc
127
 
        # TODO: reload if colordiffrc has changed.
128
 
        if style_scheme is None:
129
 
            colors = {}
130
 
 
131
 
            for f in ('~/.colordiffrc', '~/.colordiffrc.bzr-gtk'):
132
 
                f = os.path.expanduser(f)
133
 
                if os.path.exists(f):
134
 
                    try:
135
 
                        f = file(f)
136
 
                    except IOError, e:
137
 
                        warning('could not open file %s: %s' % (f, str(e)))
138
 
                    else:
139
 
                        colors.update(klass.parse_colordiffrc(f))
140
 
                        f.close()
141
 
 
142
 
            if not colors:
143
 
                # ~/.colordiffrc does not exist
144
 
                return
145
 
            
146
 
            mapping = {
147
 
                # map GtkSourceView2 scheme styles to colordiff names
 
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
148
175
                # since GSV is richer, accept new names for extra bits,
149
176
                # defaulting to old names if they're not present
150
 
                'diff:added-line': ['newtext'],
151
 
                'diff:removed-line': ['oldtext'],
152
 
                'diff:location': ['location', 'diffstuff'],
153
 
                'diff:file': ['file', 'diffstuff'],
154
 
                'diff:special-case': ['specialcase', 'diffstuff'],
155
 
            }
156
 
            
157
 
            converted_colors = {}
158
 
            for name, values in mapping.items():
159
 
                color = None
160
 
                for value in values:
161
 
                    color = colors.get(value, None)
162
 
                    if color is not None:
163
 
                        break
164
 
                if color is None:
165
 
                    continue
166
 
                converted_colors[name] = color
167
 
            
168
 
            # some xml magic to produce needed style scheme description
169
 
            e_style_scheme = Element('style-scheme')
170
 
            e_style_scheme.set('id', 'colordiff')
171
 
            e_style_scheme.set('_name', 'ColorDiff')
172
 
            e_style_scheme.set('version', '1.0')
173
 
            for name, color in converted_colors.items():
174
 
                style = SubElement(e_style_scheme, 'style')
175
 
                style.set('name', name)
176
 
                style.set('foreground', '#%s' % color)
177
 
            
178
 
            scheme_xml = tostring(e_style_scheme, 'UTF-8')
179
 
            if not os.path.exists(os.path.expanduser('~/.local/share/gtksourceview-2.0/styles')):
180
 
                os.makedirs(os.path.expanduser('~/.local/share/gtksourceview-2.0/styles'))
181
 
            file(os.path.expanduser('~/.local/share/gtksourceview-2.0/styles/colordiff.xml'), 'w').write(scheme_xml)
182
 
            
183
 
            scheme_manager.force_rescan()
184
 
            style_scheme = scheme_manager.get_scheme('colordiff')
185
 
        
186
 
        buf.set_style_scheme(style_scheme)
 
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)
187
204
 
188
205
    @staticmethod
189
206
    def parse_colordiffrc(fileobj):
210
227
#        self.parent_tree.lock_read()
211
228
#        self.rev_tree.lock_read()
212
229
#        try:
213
 
#            self.delta = iter_changes_to_status(self.parent_tree, self.rev_tree)
 
230
#            self.delta = _iter_changes_to_status(self.parent_tree, self.rev_tree)
214
231
#            self.path_to_status = {}
215
232
#            self.path_to_diff = {}
216
233
#            source_inv = self.parent_tree.inventory
287
304
        scrollwin.set_shadow_type(gtk.SHADOW_IN)
288
305
        self.pack1(scrollwin)
289
306
        scrollwin.show()
290
 
        
 
307
 
291
308
        self.model = gtk.TreeStore(str, str)
292
309
        self.treeview = gtk.TreeView(self.model)
293
310
        self.treeview.set_headers_visible(False)
310
327
        """
311
328
        # The diffs of the  selected file: a scrollable source or
312
329
        # text view
313
 
 
314
 
    def set_diff_text_sections(self, sections):
315
 
        if getattr(self, 'diff_view', None) is None:
316
 
            self.diff_view = DiffFileView()
317
 
            self.pack2(self.diff_view)
 
330
        self.diff_view = DiffFileView()
318
331
        self.diff_view.show()
319
 
        for oldname, newname, patch in sections:
 
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]
 
338
            self.model.append(None, [oldname, newname])
320
339
            self.diff_view._diffs[newname] = str(patch)
321
 
            if newname is None:
322
 
                newname = ''
323
 
            self.model.append(None, [oldname, newname])
324
340
        self.diff_view.show_diff(None)
325
341
 
326
342
    def set_diff(self, rev_tree, parent_tree):
329
345
        Compares the two trees and populates the window with the
330
346
        differences.
331
347
        """
332
 
        if getattr(self, 'diff_view', None) is None:
333
 
            self.diff_view = DiffView()
334
 
            self.pack2(self.diff_view)
 
348
        self.diff_view = DiffView()
 
349
        self.pack2(self.diff_view)
335
350
        self.diff_view.show()
336
351
        self.diff_view.set_trees(rev_tree, parent_tree)
337
352
        self.rev_tree = rev_tree
364
379
                self.model.append(titer, [ path, path ])
365
380
 
366
381
        self.treeview.expand_all()
367
 
        self.diff_view.show_diff(None)
368
382
 
369
383
    def set_file(self, file_path):
370
384
        """Select the current file to display"""
375
389
                    tv_path = child.path
376
390
                    break
377
391
        if tv_path is None:
378
 
            raise errors.NoSuchFile(file_path)
 
392
            raise NoSuchFile(file_path)
379
393
        self.treeview.set_cursor(tv_path)
380
394
        self.treeview.scroll_to_cell(tv_path)
381
395
 
387
401
            return
388
402
        elif specific_files == [ "" ]:
389
403
            specific_files = None
390
 
        
 
404
 
391
405
        self.diff_view.show_diff(specific_files)
392
 
    
393
 
    def _on_wraplines_toggled(self, widget=None, wrap=False):
394
 
        """Callback for when the wrap lines checkbutton is toggled"""
395
 
        if wrap or widget.get_active():
396
 
            self.diff_view.sourceview.set_wrap_mode(gtk.WRAP_WORD)
397
 
        else:
398
 
            self.diff_view.sourceview.set_wrap_mode(gtk.WRAP_NONE)
 
406
 
399
407
 
400
408
class DiffWindow(Window):
401
409
    """Diff window.
404
412
    differences between two revisions on a branch.
405
413
    """
406
414
 
407
 
    def __init__(self, parent=None, operations=None):
 
415
    def __init__(self, parent=None):
408
416
        Window.__init__(self, parent)
409
417
        self.set_border_width(0)
410
418
        self.set_title("bzrk diff")
415
423
        width = int(monitor.width * 0.66)
416
424
        height = int(monitor.height * 0.66)
417
425
        self.set_default_size(width, height)
418
 
        self.construct(operations)
419
 
 
420
 
    def construct(self, operations):
 
426
 
 
427
        self.construct()
 
428
 
 
429
    def construct(self):
421
430
        """Construct the window contents."""
422
431
        self.vbox = gtk.VBox()
423
432
        self.add(self.vbox)
424
433
        self.vbox.show()
 
434
        hbox = self._get_button_bar()
 
435
        if hbox is not None:
 
436
            self.vbox.pack_start(hbox, expand=False, fill=True)
425
437
        self.diff = DiffWidget()
426
 
        self.vbox.pack_end(self.diff, True, True, 0)
 
438
        self.vbox.add(self.diff)
427
439
        self.diff.show_all()
428
 
        # Build after DiffWidget to connect signals
429
 
        menubar = self._get_menu_bar()
430
 
        self.vbox.pack_start(menubar, False, False, 0)
431
 
        hbox = self._get_button_bar(operations)
432
 
        if hbox is not None:
433
 
            self.vbox.pack_start(hbox, False, True, 0)
434
 
        
435
 
    
436
 
    def _get_menu_bar(self):
437
 
        menubar = gtk.MenuBar()
438
 
        # View menu
439
 
        mb_view = gtk.MenuItem(_i18n("_View"))
440
 
        mb_view_menu = gtk.Menu()
441
 
        mb_view_wrapsource = gtk.CheckMenuItem(_i18n("Wrap _Long Lines"))
442
 
        mb_view_wrapsource.connect('activate', self.diff._on_wraplines_toggled)
443
 
        mb_view_wrapsource.show()
444
 
        mb_view_menu.append(mb_view_wrapsource)
445
 
        mb_view.show()
446
 
        mb_view.set_submenu(mb_view_menu)
447
 
        mb_view.show()
448
 
        menubar.append(mb_view)
449
 
        menubar.show()
450
 
        return menubar
451
 
    
452
 
    def _get_button_bar(self, operations):
 
440
 
 
441
    def _get_button_bar(self):
453
442
        """Return a button bar to use.
454
443
 
455
444
        :return: None, meaning that no button bar will be used.
456
445
        """
457
 
        if operations is None:
458
 
            return None
 
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")
 
456
 
 
457
    def set_diff(self, description, rev_tree, parent_tree):
 
458
        """Set the differences showed by this window.
 
459
 
 
460
        Compares the two trees and populates the window with the
 
461
        differences.
 
462
        """
 
463
        self.diff.set_diff(rev_tree, parent_tree)
 
464
        self.set_title(description + " - bzrk diff")
 
465
 
 
466
    def set_file(self, file_path):
 
467
        self.diff.set_file(file_path)
 
468
 
 
469
 
 
470
class MergeDirectiveWindow(DiffWindow):
 
471
 
 
472
    def __init__(self, directive, path):
 
473
        DiffWindow.__init__(self, None)
 
474
        self._merge_target = None
 
475
        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
 
459
490
        hbox = gtk.HButtonBox()
460
491
        hbox.set_layout(gtk.BUTTONBOX_START)
461
 
        for title, method in operations:
462
 
            merge_button = gtk.Button(title)
463
 
            merge_button.show()
464
 
            merge_button.set_relief(gtk.RELIEF_NONE)
465
 
            merge_button.connect("clicked", method)
466
 
            hbox.pack_start(merge_button, expand=False, fill=True)
 
492
        hbox.pack_start(merge_button, expand=False, fill=True)
 
493
        hbox.pack_start(save_button, expand=False, fill=True)
467
494
        hbox.show()
468
495
        return hbox
469
496
 
470
 
    def _get_merge_target(self):
471
 
        d = gtk.FileChooserDialog('Merge branch', self,
472
 
                                  gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER,
473
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
474
 
                                           gtk.STOCK_CANCEL,
475
 
                                           gtk.RESPONSE_CANCEL,))
476
 
        try:
477
 
            result = d.run()
478
 
            if result != gtk.RESPONSE_OK:
479
 
                raise SelectCancelled()
480
 
            return d.get_current_folder_uri()
481
 
        finally:
482
 
            d.destroy()
483
 
 
484
 
    def _merge_successful(self):
485
 
        # No conflicts found.
486
 
        info_dialog(_i18n('Merge successful'),
487
 
                    _i18n('All changes applied successfully.'))
488
 
 
489
 
    def _conflicts(self):
490
 
        warning_dialog(_i18n('Conflicts encountered'),
491
 
                       _i18n('Please resolve the conflicts manually'
492
 
                             ' before committing.'))
493
 
 
494
 
    def _handle_error(self, e):
495
 
        error_dialog('Error', str(e))
496
 
 
497
 
    def _get_save_path(self, basename):
498
 
        d = gtk.FileChooserDialog('Save As', self,
499
 
                                  gtk.FILE_CHOOSER_ACTION_SAVE,
500
 
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
501
 
                                           gtk.STOCK_CANCEL,
502
 
                                           gtk.RESPONSE_CANCEL,))
503
 
        d.set_current_name(basename)
504
 
        try:
505
 
            result = d.run()
506
 
            if result != gtk.RESPONSE_OK:
507
 
                raise SelectCancelled()
508
 
            return urlutils.local_path_from_url(d.get_uri())
509
 
        finally:
510
 
            d.destroy()
511
 
 
512
 
    def set_diff(self, description, rev_tree, parent_tree):
513
 
        """Set the differences showed by this window.
514
 
 
515
 
        Compares the two trees and populates the window with the
516
 
        differences.
517
 
        """
518
 
        self.diff.set_diff(rev_tree, parent_tree)
519
 
        self.set_title(description + " - bzrk diff")
520
 
 
521
 
    def set_file(self, file_path):
522
 
        self.diff.set_file(file_path)
523
 
 
524
 
 
525
 
class DiffController(object):
526
 
 
527
 
    def __init__(self, path, patch, window=None):
528
 
        self.path = path
529
 
        self.patch = patch
530
 
        if window is None:
531
 
            window = DiffWindow(operations=self._provide_operations())
532
 
            self.initialize_window(window)
533
 
        self.window = window
534
 
 
535
 
    def initialize_window(self, window):
536
 
        window.diff.set_diff_text_sections(self.get_diff_sections())
537
 
        window.set_title(self.path + " - diff")
538
 
 
539
 
    def get_diff_sections(self):
540
 
        yield "Complete Diff", None, ''.join(self.patch)
541
 
        for patch in parse_patches(self.patch):
542
 
            oldname = patch.oldname.split('\t')[0]
543
 
            newname = patch.newname.split('\t')[0]
544
 
            yield oldname, newname, str(patch)
545
 
 
546
 
    def perform_save(self, window):
547
 
        try:
548
 
            save_path = self.window._get_save_path(osutils.basename(self.path))
549
 
        except SelectCancelled:
550
 
            return
551
 
        source = open(self.path, 'rb')
552
 
        try:
553
 
            target = open(save_path, 'wb')
554
 
            try:
555
 
                osutils.pumpfile(source, target)
556
 
            finally:
557
 
                target.close()
558
 
        finally:
559
 
            source.close()
560
 
 
561
 
    def _provide_operations(self):
562
 
        return [('Save', self.perform_save)]
563
 
 
564
 
 
565
 
class MergeDirectiveController(DiffController):
566
 
 
567
 
    def __init__(self, path, directive, window=None):
568
 
        DiffController.__init__(self, path, directive.patch.splitlines(True),
569
 
                                window)
570
 
        self.directive = directive
571
 
        self.merge_target = None
572
 
 
573
 
    def _provide_operations(self):
574
 
        return [('Merge', self.perform_merge), ('Save', self.perform_save)]
575
 
 
576
497
    def perform_merge(self, window):
577
 
        if self.merge_target is None:
578
 
            try:
579
 
                self.merge_target = self.window._get_merge_target()
580
 
            except SelectCancelled:
581
 
                return
582
 
        tree = workingtree.WorkingTree.open(self.merge_target)
 
498
        try:
 
499
            tree = self._get_merge_target()
 
500
        except SelectCancelled:
 
501
            return
583
502
        tree.lock_write()
584
503
        try:
585
504
            try:
586
 
                if tree.has_changes():
587
 
                    raise errors.UncommittedChanges(tree)
588
 
                merger, verified = _mod_merge.Merger.from_mergeable(
589
 
                    tree, self.directive, pb=None)
 
505
                merger, verified = _mod_merge.Merger.from_mergeable(tree,
 
506
                    self.directive, progress.DummyProgress())
 
507
                merger.check_basis(True)
590
508
                merger.merge_type = _mod_merge.Merge3Merger
591
509
                conflict_count = merger.do_merge()
592
510
                merger.set_pending()
593
511
                if conflict_count == 0:
594
 
                    self.window._merge_successful()
 
512
                    # No conflicts found.
 
513
                    info_dialog(_('Merge successful'),
 
514
                                _('All changes applied successfully.'))
595
515
                else:
596
 
                    self.window._conflicts()
597
516
                    # There are conflicts to be resolved.
598
 
                self.window.destroy()
 
517
                    warning_dialog(_('Conflicts encountered'),
 
518
                                   _('Please resolve the conflicts manually'
 
519
                                     ' before committing.'))
 
520
                self.destroy()
599
521
            except Exception, e:
600
 
                self.window._handle_error(e)
 
522
                error_dialog('Error', str(e))
601
523
        finally:
602
524
            tree.unlock()
603
525
 
604
 
 
605
 
def iter_changes_to_status(source, target):
 
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
 
 
571
def _iter_changes_to_status(source, target):
606
572
    """Determine the differences between trees.
607
573
 
608
 
    This is a wrapper around iter_changes which just yields more
 
574
    This is a wrapper around _iter_changes which just yields more
609
575
    understandable results.
610
576
 
611
577
    :param source: The source tree (basis tree)
618
584
    renamed_and_modified = 'renamed and modified'
619
585
    modified = 'modified'
620
586
    kind_changed = 'kind changed'
621
 
    missing = 'missing'
622
587
 
623
588
    # TODO: Handle metadata changes
624
589
 
628
593
        source.lock_read()
629
594
        try:
630
595
            for (file_id, paths, changed_content, versioned, parent_ids, names,
631
 
                 kinds, executables) in target.iter_changes(source):
 
596
                 kinds, executables) in target._iter_changes(source):
632
597
 
633
598
                # Skip the root entry if it isn't very interesting
634
599
                if parent_ids == (None, None):
639
604
                    source_marker = ''
640
605
                else:
641
606
                    source_marker = osutils.kind_marker(kinds[0])
642
 
 
643
607
                if kinds[1] is None:
644
 
                    if kinds[0] is None:
645
 
                        # We assume bzr will flag only files in that case,
646
 
                        # there may be a bzr bug there as only files seems to
647
 
                        # not receive any kind.
648
 
                        marker = osutils.kind_marker('file')
649
 
                    else:
650
 
                        marker = osutils.kind_marker(kinds[0])
 
608
                    assert kinds[0] is not None
 
609
                    marker = osutils.kind_marker(kinds[0])
651
610
                else:
652
611
                    marker = osutils.kind_marker(kinds[1])
653
612
 
655
614
                if real_path is None:
656
615
                    real_path = paths[0]
657
616
                assert real_path is not None
 
617
                display_path = real_path + marker
658
618
 
659
619
                present_source = versioned[0] and kinds[0] is not None
660
620
                present_target = versioned[1] and kinds[1] is not None
661
621
 
662
 
                if kinds[0] is None and kinds[1] is None:
663
 
                    change_type = missing
664
 
                    display_path = real_path + marker
665
 
                elif present_source != present_target:
 
622
                if present_source != present_target:
666
623
                    if present_target:
667
624
                        change_type = added
668
625
                    else:
669
626
                        assert present_source
670
627
                        change_type = removed
671
 
                    display_path = real_path + marker
672
628
                elif names[0] != names[1] or parent_ids[0] != parent_ids[1]:
673
629
                    # Renamed
674
630
                    if changed_content or executables[0] != executables[1]:
682
638
                    change_type = kind_changed
683
639
                    display_path = (paths[0] + source_marker
684
640
                                    + ' => ' + paths[1] + marker)
685
 
                elif changed_content or executables[0] != executables[1]:
 
641
                elif changed_content is True or executables[0] != executables[1]:
686
642
                    change_type = modified
687
 
                    display_path = real_path + marker
688
643
                else:
689
644
                    assert False, "How did we get here?"
690
645