← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/shelf_ui.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-01-12 08:03:28 UTC
  • mfrom: (4949.1.1 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20100112080328-cb0tvu90uglxlrw0
(mbp) merge 2.0 back to trunk

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/shelf_ui.py
1
 
# Copyright (C) 2008, 2009, 2010 Canonical Ltd
 
1
# Copyright (C) 2008 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
22
22
 
23
23
from bzrlib import (
24
24
    builtins,
 
25
    commands,
25
26
    delta,
26
27
    diff,
27
28
    errors,
382
383
    """Unshelve changes into a working tree."""
383
384
 
384
385
    @classmethod
385
 
    def from_args(klass, shelf_id=None, action='apply', directory='.',
386
 
                  write_diff_to=None):
 
386
    def from_args(klass, shelf_id=None, action='apply', directory='.'):
387
387
        """Create an unshelver from commandline arguments.
388
388
 
389
 
        The returned shelver will have a tree that is locked and should
 
389
        The returned shelver wil have a tree that is locked and should
390
390
        be unlocked.
391
391
 
392
392
        :param shelf_id: Integer id of the shelf, as a string.
393
393
        :param action: action to perform.  May be 'apply', 'dry-run',
394
 
            'delete', 'preview'.
 
394
            'delete'.
395
395
        :param directory: The directory to unshelve changes into.
396
 
        :param write_diff_to: See Unshelver.__init__().
397
396
        """
398
397
        tree, path = workingtree.WorkingTree.open_containing(directory)
399
398
        tree.lock_tree_write()
411
410
            apply_changes = True
412
411
            delete_shelf = True
413
412
            read_shelf = True
414
 
            show_diff = False
415
413
            if action == 'dry-run':
416
414
                apply_changes = False
417
415
                delete_shelf = False
418
 
            elif action == 'preview':
419
 
                apply_changes = False
420
 
                delete_shelf = False
421
 
                show_diff = True
422
416
            elif action == 'delete-only':
423
417
                apply_changes = False
424
418
                read_shelf = False
429
423
            tree.unlock()
430
424
            raise
431
425
        return klass(tree, manager, shelf_id, apply_changes, delete_shelf,
432
 
                     read_shelf, show_diff, write_diff_to)
 
426
                     read_shelf)
433
427
 
434
428
    def __init__(self, tree, manager, shelf_id, apply_changes=True,
435
 
                 delete_shelf=True, read_shelf=True, show_diff=False,
436
 
                 write_diff_to=None):
 
429
                 delete_shelf=True, read_shelf=True):
437
430
        """Constructor.
438
431
 
439
432
        :param tree: The working tree to unshelve into.
443
436
            working tree.
444
437
        :param delete_shelf: If True, delete the changes from the shelf.
445
438
        :param read_shelf: If True, read the changes from the shelf.
446
 
        :param show_diff: If True, show the diff that would result from
447
 
            unshelving the changes.
448
 
        :param write_diff_to: A file-like object where the diff will be
449
 
            written to. If None, ui.ui_factory.make_output_stream() will
450
 
            be used.
451
439
        """
452
440
        self.tree = tree
453
441
        manager = tree.get_shelf_manager()
456
444
        self.apply_changes = apply_changes
457
445
        self.delete_shelf = delete_shelf
458
446
        self.read_shelf = read_shelf
459
 
        self.show_diff = show_diff
460
 
        self.write_diff_to = write_diff_to
461
447
 
462
448
    def run(self):
463
449
        """Perform the unshelving operation."""
477
463
                    merger.change_reporter = change_reporter
478
464
                    if self.apply_changes:
479
465
                        merger.do_merge()
480
 
                    elif self.show_diff:
481
 
                        self.write_diff(merger)
482
466
                    else:
483
467
                        self.show_changes(merger)
484
468
                finally:
490
474
            for cleanup in reversed(cleanups):
491
475
                cleanup()
492
476
 
493
 
    def write_diff(self, merger):
494
 
        """Write this operation's diff to self.write_diff_to."""
495
 
        tree_merger = merger.make_merger()
496
 
        tt = tree_merger.make_preview_transform()
497
 
        new_tree = tt.get_preview_tree()
498
 
        if self.write_diff_to is None:
499
 
            self.write_diff_to = ui.ui_factory.make_output_stream()
500
 
        diff.show_diff_trees(merger.this_tree, new_tree, self.write_diff_to)
501
 
        tt.finalize()
502
 
 
503
477
    def show_changes(self, merger):
504
478
        """Show the changes that this operation specifies."""
505
479
        tree_merger = merger.make_merger()