/b-gtk/fix-viz

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Viewing changes to diff.py

  • Committer: Aaron Bentley
  • Date: 2008-02-23 06:39:14 UTC
  • Revision ID: aaron@aaronbentley.com-20080223063914-49gdt7ed630rug9b
Add handle-patch script

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
 
__author__ = "Scott James Remnant <scott@ubuntu.com>"
 
8
__copyright__ = "Copyright © 2005 Canonical Ltd."
 
9
__author__    = "Scott James Remnant <scott@ubuntu.com>"
9
10
 
10
11
 
11
12
from cStringIO import StringIO
12
13
 
 
14
import pygtk
 
15
pygtk.require("2.0")
 
16
import gtk
 
17
import pango
 
18
import os
 
19
import re
13
20
import sys
14
 
import inspect
15
21
 
16
 
from gi.repository import Gtk
17
 
from gi.repository import Pango
18
22
try:
19
 
    from gi.repository import GtkSource
 
23
    import gtksourceview
20
24
    have_gtksourceview = True
21
25
except ImportError:
22
26
    have_gtksourceview = False
 
27
try:
 
28
    import gconf
 
29
    have_gconf = True
 
30
except ImportError:
 
31
    have_gconf = False
23
32
 
24
 
from bzrlib import (
25
 
    errors,
26
 
    merge as _mod_merge,
27
 
    osutils,
28
 
    urlutils,
29
 
    workingtree,
30
 
    )
31
 
from bzrlib.diff import show_diff_trees
 
33
from bzrlib import merge as _mod_merge, osutils, progress, workingtree
 
34
from bzrlib.diff import show_diff_trees, internal_diff
 
35
from bzrlib.errors import NoSuchFile
32
36
from bzrlib.patches import parse_patches
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
 
37
from bzrlib.trace import warning
39
38
from bzrlib.plugins.gtk.window import Window
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
 
39
from dialog import error_dialog, info_dialog, warning_dialog
48
40
 
49
41
 
50
42
class SelectCancelled(Exception):
52
44
    pass
53
45
 
54
46
 
55
 
class DiffFileView(Gtk.ScrolledWindow):
56
 
    """Window for displaying diffs from a diff file"""
57
 
 
58
 
    SHOW_WIDGETS = True
 
47
class DiffFileView(gtk.ScrolledWindow):
59
48
 
60
49
    def __init__(self):
61
 
        super(DiffFileView, self).__init__()
 
50
        gtk.ScrolledWindow.__init__(self)
62
51
        self.construct()
63
52
        self._diffs = {}
64
53
 
65
54
    def construct(self):
66
 
        self.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
67
 
        self.set_shadow_type(Gtk.ShadowType.IN)
 
55
        self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 
56
        self.set_shadow_type(gtk.SHADOW_IN)
68
57
 
69
58
        if have_gtksourceview:
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)
 
59
            self.buffer = gtksourceview.SourceBuffer()
 
60
            slm = gtksourceview.SourceLanguagesManager()
 
61
            gsl = slm.get_language_from_mime_type("text/x-patch")
 
62
            if have_gconf:
 
63
                self.apply_gedit_colors(gsl)
 
64
            self.apply_colordiff_colors(gsl)
 
65
            self.buffer.set_language(gsl)
 
66
            self.buffer.set_highlight(True)
 
67
 
 
68
            sourceview = gtksourceview.SourceView(self.buffer)
76
69
        else:
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()
 
70
            self.buffer = gtk.TextBuffer()
 
71
            sourceview = gtk.TextView(self.buffer)
 
72
 
 
73
        sourceview.set_editable(False)
 
74
        sourceview.modify_font(pango.FontDescription("Monospace"))
 
75
        self.add(sourceview)
 
76
        sourceview.show()
 
77
 
 
78
    @staticmethod
 
79
    def apply_gedit_colors(lang):
 
80
        """Set style for lang to that specified in gedit configuration.
 
81
 
 
82
        This method needs the gconf module.
 
83
 
 
84
        :param lang: a gtksourceview.SourceLanguage object.
 
85
        """
 
86
        GEDIT_SYNTAX_PATH = '/apps/gedit-2/preferences/syntax_highlighting'
 
87
        GEDIT_LANG_PATH = GEDIT_SYNTAX_PATH + '/' + lang.get_id()
 
88
 
 
89
        client = gconf.client_get_default()
 
90
        client.add_dir(GEDIT_LANG_PATH, gconf.CLIENT_PRELOAD_NONE)
 
91
 
 
92
        for tag in lang.get_tags():
 
93
            tag_id = tag.get_id()
 
94
            gconf_key = GEDIT_LANG_PATH + '/' + tag_id
 
95
            style_string = client.get_string(gconf_key)
 
96
 
 
97
            if style_string is None:
 
98
                continue
 
99
 
 
100
            # function to get a bool from a string that's either '0' or '1'
 
101
            string_bool = lambda x: bool(int(x))
 
102
 
 
103
            # style_string is a string like "2/#FFCCAA/#000000/0/1/0/0"
 
104
            # values are: mask, fg, bg, italic, bold, underline, strike
 
105
            # this packs them into (str_value, attr_name, conv_func) tuples
 
106
            items = zip(style_string.split('/'), ['mask', 'foreground',
 
107
                'background', 'italic', 'bold', 'underline', 'strikethrough' ],
 
108
                [ int, gtk.gdk.color_parse, gtk.gdk.color_parse, string_bool,
 
109
                    string_bool, string_bool, string_bool ]
 
110
            )
 
111
 
 
112
            style = gtksourceview.SourceTagStyle()
 
113
 
 
114
            # XXX The mask attribute controls whether the present values of
 
115
            # foreground and background color should in fact be used. Ideally
 
116
            # (and that's what gedit does), one could set all three attributes,
 
117
            # and let the TagStyle object figure out which colors to use.
 
118
            # However, in the GtkSourceview python bindings, the mask attribute
 
119
            # is read-only, and it's derived instead from the colors being
 
120
            # set or not. This means that we have to sometimes refrain from
 
121
            # setting fg or bg colors, depending on the value of the mask.
 
122
            # This code could go away if mask were writable.
 
123
            mask = int(items[0][0])
 
124
            if not (mask & 1): # GTK_SOURCE_TAG_STYLE_USE_BACKGROUND
 
125
                items[2:3] = []
 
126
            if not (mask & 2): # GTK_SOURCE_TAG_STYLE_USE_FOREGROUND
 
127
                items[1:2] = []
 
128
            items[0:1] = [] # skip the mask unconditionally
 
129
 
 
130
            for value, attr, func in items:
 
131
                try:
 
132
                    value = func(value)
 
133
                except ValueError:
 
134
                    warning('gconf key %s contains an invalid value: %s'
 
135
                            % gconf_key, value)
 
136
                else:
 
137
                    setattr(style, attr, value)
 
138
 
 
139
            lang.set_tag_style(tag_id, style)
 
140
 
 
141
    @classmethod
 
142
    def apply_colordiff_colors(klass, lang):
 
143
        """Set style colors for lang using the colordiff configuration file.
 
144
 
 
145
        Both ~/.colordiffrc and ~/.colordiffrc.bzr-gtk are read.
 
146
 
 
147
        :param lang: a "Diff" gtksourceview.SourceLanguage object.
 
148
        """
 
149
        colors = {}
 
150
 
 
151
        for f in ('~/.colordiffrc', '~/.colordiffrc.bzr-gtk'):
 
152
            f = os.path.expanduser(f)
 
153
            if os.path.exists(f):
 
154
                try:
 
155
                    f = file(f)
 
156
                except IOError, e:
 
157
                    warning('could not open file %s: %s' % (f, str(e)))
 
158
                else:
 
159
                    colors.update(klass.parse_colordiffrc(f))
 
160
                    f.close()
 
161
 
 
162
        if not colors:
 
163
            # ~/.colordiffrc does not exist
 
164
            return
 
165
 
 
166
        mapping = {
 
167
                # map GtkSourceView tags to colordiff names
 
168
                # since GSV is richer, accept new names for extra bits,
 
169
                # defaulting to old names if they're not present
 
170
                'Added@32@line': ['newtext'],
 
171
                'Removed@32@line': ['oldtext'],
 
172
                'Location': ['location', 'diffstuff'],
 
173
                'Diff@32@file': ['file', 'diffstuff'],
 
174
                'Special@32@case': ['specialcase', 'diffstuff'],
 
175
        }
 
176
 
 
177
        for tag in lang.get_tags():
 
178
            tag_id = tag.get_id()
 
179
            keys = mapping.get(tag_id, [])
 
180
            color = None
 
181
 
 
182
            for key in keys:
 
183
                color = colors.get(key, None)
 
184
                if color is not None:
 
185
                    break
 
186
 
 
187
            if color is None:
 
188
                continue
 
189
 
 
190
            style = gtksourceview.SourceTagStyle()
 
191
            try:
 
192
                style.foreground = gtk.gdk.color_parse(color)
 
193
            except ValueError:
 
194
                warning('not a valid color: %s' % color)
 
195
            else:
 
196
                lang.set_tag_style(tag_id, style)
 
197
 
 
198
    @staticmethod
 
199
    def parse_colordiffrc(fileobj):
 
200
        """Parse fileobj as a colordiff configuration file.
 
201
 
 
202
        :return: A dict with the key -> value pairs.
 
203
        """
 
204
        colors = {}
 
205
        for line in fileobj:
 
206
            if re.match(r'^\s*#', line):
 
207
                continue
 
208
            if '=' not in line:
 
209
                continue
 
210
            key, val = line.split('=', 1)
 
211
            colors[key.strip()] = val.strip()
 
212
        return colors
85
213
 
86
214
    def set_trees(self, rev_tree, parent_tree):
87
215
        self.rev_tree = rev_tree
92
220
#        self.parent_tree.lock_read()
93
221
#        self.rev_tree.lock_read()
94
222
#        try:
95
 
#            self.delta = iter_changes_to_status(
96
 
#               self.parent_tree, self.rev_tree)
 
223
#            self.delta = _iter_changes_to_status(self.parent_tree, self.rev_tree)
97
224
#            self.path_to_status = {}
98
225
#            self.path_to_diff = {}
99
226
#            source_inv = self.parent_tree.inventory
100
227
#            target_inv = self.rev_tree.inventory
101
228
#            for (file_id, real_path, change_type, display_path) in self.delta:
102
 
#                self.path_to_status[real_path] = u'=== %s %s' % (
103
 
#                    change_type, display_path)
 
229
#                self.path_to_status[real_path] = u'=== %s %s' % (change_type, display_path)
104
230
#                if change_type in ('modified', 'renamed and modified'):
105
231
#                    source_ie = source_inv[file_id]
106
232
#                    target_ie = target_inv[file_id]
108
234
#                    source_ie.diff(internal_diff, *old path, *old_tree,
109
235
#                                   *new_path, target_ie, self.rev_tree,
110
236
#                                   sio)
111
 
#                    self.path_to_diff[real_path] =
 
237
#                    self.path_to_diff[real_path] = 
112
238
#
113
239
#        finally:
114
240
#            self.rev_tree.unlock()
128
254
    """This is the soft and chewy filling for a DiffWindow."""
129
255
 
130
256
    def __init__(self):
131
 
        super(DiffView, self).__init__()
 
257
        DiffFileView.__init__(self)
132
258
        self.rev_tree = None
133
259
        self.parent_tree = None
134
260
 
135
261
    def show_diff(self, specific_files):
136
 
        """Show the diff for the specified files"""
137
262
        s = StringIO()
138
263
        show_diff_trees(self.parent_tree, self.rev_tree, s, specific_files,
139
264
                        old_label='', new_label='',
158
283
        self.buffer.set_text(decoded.encode('UTF-8'))
159
284
 
160
285
 
161
 
class DiffWidget(Gtk.HPaned):
 
286
class DiffWidget(gtk.HPaned):
162
287
    """Diff widget
163
288
 
164
289
    """
165
 
 
166
 
    SHOW_WIDGETS = True
167
 
 
168
290
    def __init__(self):
169
291
        super(DiffWidget, self).__init__()
170
292
 
171
293
        # The file hierarchy: a scrollable treeview
172
 
        scrollwin = Gtk.ScrolledWindow()
173
 
        scrollwin.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)
174
 
        scrollwin.set_shadow_type(Gtk.ShadowType.IN)
 
294
        scrollwin = gtk.ScrolledWindow()
 
295
        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
 
296
        scrollwin.set_shadow_type(gtk.SHADOW_IN)
175
297
        self.pack1(scrollwin)
176
 
        if self.SHOW_WIDGETS:
177
 
            scrollwin.show()
 
298
        scrollwin.show()
178
299
 
179
 
        self.model = Gtk.TreeStore(str, str)
180
 
        self.treeview = Gtk.TreeView(model=self.model)
 
300
        self.model = gtk.TreeStore(str, str)
 
301
        self.treeview = gtk.TreeView(self.model)
181
302
        self.treeview.set_headers_visible(False)
182
303
        self.treeview.set_search_column(1)
183
304
        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
184
305
        scrollwin.add(self.treeview)
185
 
        if self.SHOW_WIDGETS:
186
 
            self.treeview.show()
 
306
        self.treeview.show()
187
307
 
188
 
        cell = Gtk.CellRendererText()
 
308
        cell = gtk.CellRendererText()
189
309
        cell.set_property("width-chars", 20)
190
 
        column = Gtk.TreeViewColumn()
191
 
        column.pack_start(cell, True)
 
310
        column = gtk.TreeViewColumn()
 
311
        column.pack_start(cell, expand=True)
192
312
        column.add_attribute(cell, "text", 0)
193
313
        self.treeview.append_column(column)
194
314
 
195
315
    def set_diff_text(self, lines):
196
 
        """Set the current diff from a list of lines
197
 
 
198
 
        :param lines: The diff to show, in unified diff format
199
 
        """
200
316
        # The diffs of the  selected file: a scrollable source or
201
317
        # text view
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:
 
318
        self.diff_view = DiffFileView()
 
319
        self.diff_view.show()
 
320
        self.pack2(self.diff_view)
 
321
        self.model.append(None, [ "Complete Diff", "" ])
 
322
        self.diff_view._diffs[None] = ''.join(lines)
 
323
        for patch in parse_patches(lines):
 
324
            oldname = patch.oldname.split('\t')[0]
 
325
            newname = patch.newname.split('\t')[0]
 
326
            self.model.append(None, [oldname, newname])
210
327
            self.diff_view._diffs[newname] = str(patch)
211
 
            if newname is None:
212
 
                newname = ''
213
 
            self.model.append(None, [oldname, newname])
214
328
        self.diff_view.show_diff(None)
215
329
 
216
330
    def set_diff(self, rev_tree, parent_tree):
219
333
        Compares the two trees and populates the window with the
220
334
        differences.
221
335
        """
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()
 
336
        self.diff_view = DiffView()
 
337
        self.pack2(self.diff_view)
 
338
        self.diff_view.show()
227
339
        self.diff_view.set_trees(rev_tree, parent_tree)
228
340
        self.rev_tree = rev_tree
229
341
        self.parent_tree = parent_tree
231
343
        self.model.clear()
232
344
        delta = self.rev_tree.changes_from(self.parent_tree)
233
345
 
234
 
        self.model.append(None, ["Complete Diff", ""])
 
346
        self.model.append(None, [ "Complete Diff", "" ])
235
347
 
236
348
        if len(delta.added):
237
 
            titer = self.model.append(None, ["Added", None])
 
349
            titer = self.model.append(None, [ "Added", None ])
238
350
            for path, id, kind in delta.added:
239
 
                self.model.append(titer, [path, path])
 
351
                self.model.append(titer, [ path, path ])
240
352
 
241
353
        if len(delta.removed):
242
 
            titer = self.model.append(None, ["Removed", None])
 
354
            titer = self.model.append(None, [ "Removed", None ])
243
355
            for path, id, kind in delta.removed:
244
 
                self.model.append(titer, [path, path])
 
356
                self.model.append(titer, [ path, path ])
245
357
 
246
358
        if len(delta.renamed):
247
 
            titer = self.model.append(None, ["Renamed", None])
 
359
            titer = self.model.append(None, [ "Renamed", None ])
248
360
            for oldpath, newpath, id, kind, text_modified, meta_modified \
249
361
                    in delta.renamed:
250
 
                self.model.append(titer, [oldpath, newpath])
 
362
                self.model.append(titer, [ oldpath, newpath ])
251
363
 
252
364
        if len(delta.modified):
253
 
            titer = self.model.append(None, ["Modified", None])
 
365
            titer = self.model.append(None, [ "Modified", None ])
254
366
            for path, id, kind, text_modified, meta_modified in delta.modified:
255
 
                self.model.append(titer, [path, path])
 
367
                self.model.append(titer, [ path, path ])
256
368
 
257
369
        self.treeview.expand_all()
258
 
        self.diff_view.show_diff(None)
259
370
 
260
371
    def set_file(self, file_path):
261
 
        """Select the current file to display"""
262
372
        tv_path = None
263
373
        for data in self.model:
264
374
            for child in data.iterchildren():
266
376
                    tv_path = child.path
267
377
                    break
268
378
        if tv_path is None:
269
 
            raise errors.NoSuchFile(file_path)
270
 
        self.treeview.set_cursor(tv_path, None, False)
 
379
            raise NoSuchFile(file_path)
 
380
        self.treeview.set_cursor(tv_path)
271
381
        self.treeview.scroll_to_cell(tv_path)
272
382
 
273
383
    def _treeview_cursor_cb(self, *args):
274
384
        """Callback for when the treeview cursor changes."""
275
385
        (path, col) = self.treeview.get_cursor()
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 == [""]:
 
386
        specific_files = [ self.model[path][1] ]
 
387
        if specific_files == [ None ]:
 
388
            return
 
389
        elif specific_files == [ "" ]:
282
390
            specific_files = None
283
391
 
284
392
        self.diff_view.show_diff(specific_files)
285
393
 
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
 
 
293
394
 
294
395
class DiffWindow(Window):
295
396
    """Diff window.
298
399
    differences between two revisions on a branch.
299
400
    """
300
401
 
301
 
    SHOW_WIDGETS = True
302
 
 
303
 
    def __init__(self, parent=None, operations=None):
304
 
        super(DiffWindow, self).__init__(parent=parent)
 
402
    def __init__(self, parent=None):
 
403
        Window.__init__(self, parent)
305
404
        self.set_border_width(0)
306
 
        self.set_title("bzr diff")
 
405
        self.set_title("bzrk diff")
307
406
 
308
407
        # Use two thirds of the screen by default
309
408
        screen = self.get_screen()
311
410
        width = int(monitor.width * 0.66)
312
411
        height = int(monitor.height * 0.66)
313
412
        self.set_default_size(width, height)
314
 
        self.construct(operations)
315
 
 
316
 
    def construct(self, operations):
 
413
 
 
414
        self.construct()
 
415
 
 
416
    def construct(self):
317
417
        """Construct the window contents."""
318
 
        self.vbox = Gtk.VBox()
 
418
        self.vbox = gtk.VBox()
319
419
        self.add(self.vbox)
320
 
        if self.SHOW_WIDGETS:
321
 
            self.vbox.show()
 
420
        self.vbox.show()
 
421
        hbox = self._get_button_bar()
 
422
        if hbox is not None:
 
423
            self.vbox.pack_start(hbox, expand=False, fill=True)
322
424
        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)
330
 
        if hbox is not None:
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):
349
 
        """Return a button bar to use.
350
 
 
351
 
        :return: None, meaning that no button bar will be used.
352
 
        """
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()
 
425
        self.vbox.add(self.diff)
 
426
        self.diff.show_all()
 
427
 
 
428
    def _get_button_bar(self):
 
429
        return None
 
430
 
 
431
    def set_diff_text(self, description, lines):
 
432
        self.diff.set_diff_text(lines)
 
433
        self.set_title(description + " - bzrk diff")
409
434
 
410
435
    def set_diff(self, description, rev_tree, parent_tree):
411
436
        """Set the differences showed by this window.
420
445
        self.diff.set_file(file_path)
421
446
 
422
447
 
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)
 
448
class MergeDirectiveWindow(DiffWindow):
 
449
 
 
450
    def __init__(self, directive, parent=None):
 
451
        DiffWindow.__init__(self, parent)
 
452
        self._merge_target = None
474
453
        self.directive = directive
475
 
        self.merge_target = None
476
 
 
477
 
    def _provide_operations(self):
478
 
        return [('Merge', self.perform_merge), ('Save', self.perform_save)]
 
454
 
 
455
    def _get_button_bar(self):
 
456
        merge_button = gtk.Button('Merge')
 
457
        merge_button.show()
 
458
        merge_button.set_relief(gtk.RELIEF_NONE)
 
459
        merge_button.connect("clicked", self.perform_merge)
 
460
 
 
461
        hbox = gtk.HButtonBox()
 
462
        hbox.set_layout(gtk.BUTTONBOX_START)
 
463
        hbox.pack_start(merge_button, expand=False, fill=True)
 
464
        hbox.show()
 
465
        return hbox
479
466
 
480
467
    def perform_merge(self, window):
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)
 
468
        try:
 
469
            tree = self._get_merge_target()
 
470
        except SelectCancelled:
 
471
            return
487
472
        tree.lock_write()
488
473
        try:
489
474
            try:
490
 
                if tree.has_changes():
491
 
                    raise errors.UncommittedChanges(tree)
492
 
                merger, verified = _mod_merge.Merger.from_mergeable(
493
 
                    tree, self.directive, pb=None)
 
475
                merger, verified = _mod_merge.Merger.from_mergeable(tree,
 
476
                    self.directive, progress.DummyProgress())
 
477
                merger.check_basis(True)
494
478
                merger.merge_type = _mod_merge.Merge3Merger
495
479
                conflict_count = merger.do_merge()
496
480
                merger.set_pending()
497
481
                if conflict_count == 0:
498
 
                    self.window._merge_successful()
 
482
                    # No conflicts found.
 
483
                    info_dialog(_('Merge successful'),
 
484
                                _('All changes applied successfully.'))
499
485
                else:
500
 
                    self.window._conflicts()
501
486
                    # There are conflicts to be resolved.
502
 
                self.window.destroy()
 
487
                    warning_dialog(_('Conflicts encountered'),
 
488
                                   _('Please resolve the conflicts manually'
 
489
                                     ' before committing.'))
 
490
                self.destroy()
503
491
            except Exception, e:
504
 
                self.window._handle_error(e)
 
492
                error_dialog('Error', str(e))
505
493
        finally:
506
494
            tree.unlock()
507
495
 
508
 
 
509
 
def iter_changes_to_status(source, target):
 
496
    def _get_merge_target(self):
 
497
        if self._merge_target is not None:
 
498
            return self._merge_target
 
499
        d = gtk.FileChooserDialog('Merge branch', self,
 
500
                                  gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER,
 
501
                                  buttons=(gtk.STOCK_OK, gtk.RESPONSE_OK,
 
502
                                           gtk.STOCK_CANCEL,
 
503
                                           gtk.RESPONSE_CANCEL,))
 
504
        try:
 
505
            result = d.run()
 
506
            if result == gtk.RESPONSE_OK:
 
507
                uri = d.get_current_folder_uri()
 
508
                return workingtree.WorkingTree.open(uri)
 
509
            else:
 
510
                raise SelectCancelled()
 
511
        finally:
 
512
            d.destroy()
 
513
 
 
514
 
 
515
def _iter_changes_to_status(source, target):
510
516
    """Determine the differences between trees.
511
517
 
512
 
    This is a wrapper around iter_changes which just yields more
 
518
    This is a wrapper around _iter_changes which just yields more
513
519
    understandable results.
514
520
 
515
521
    :param source: The source tree (basis tree)
522
528
    renamed_and_modified = 'renamed and modified'
523
529
    modified = 'modified'
524
530
    kind_changed = 'kind changed'
525
 
    missing = 'missing'
526
531
 
527
532
    # TODO: Handle metadata changes
528
533
 
532
537
        source.lock_read()
533
538
        try:
534
539
            for (file_id, paths, changed_content, versioned, parent_ids, names,
535
 
                 kinds, executables) in target.iter_changes(source):
 
540
                 kinds, executables) in target._iter_changes(source):
536
541
 
537
542
                # Skip the root entry if it isn't very interesting
538
543
                if parent_ids == (None, None):
543
548
                    source_marker = ''
544
549
                else:
545
550
                    source_marker = osutils.kind_marker(kinds[0])
546
 
 
547
551
                if kinds[1] is None:
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])
 
552
                    assert kinds[0] is not None
 
553
                    marker = osutils.kind_marker(kinds[0])
555
554
                else:
556
555
                    marker = osutils.kind_marker(kinds[1])
557
556
 
559
558
                if real_path is None:
560
559
                    real_path = paths[0]
561
560
                assert real_path is not None
 
561
                display_path = real_path + marker
562
562
 
563
563
                present_source = versioned[0] and kinds[0] is not None
564
564
                present_target = versioned[1] and kinds[1] is not None
565
565
 
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:
 
566
                if present_source != present_target:
570
567
                    if present_target:
571
568
                        change_type = added
572
569
                    else:
573
570
                        assert present_source
574
571
                        change_type = removed
575
 
                    display_path = real_path + marker
576
572
                elif names[0] != names[1] or parent_ids[0] != parent_ids[1]:
577
573
                    # Renamed
578
574
                    if changed_content or executables[0] != executables[1]:
586
582
                    change_type = kind_changed
587
583
                    display_path = (paths[0] + source_marker
588
584
                                    + ' => ' + paths[1] + marker)
589
 
                elif changed_content or executables[0] != executables[1]:
 
585
                elif changed_content is True or executables[0] != executables[1]:
590
586
                    change_type = modified
591
 
                    display_path = real_path + marker
592
587
                else:
593
588
                    assert False, "How did we get here?"
594
589