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# revert.py - File revert dialog for TortoiseHg
#
# Copyright 2010 Steve Borho <steve@borho.org>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
from __future__ import absolute_import
from .qtcore import (
Qt,
pyqtSlot,
)
from .qtgui import (
QCheckBox,
QComboBox,
QDialog,
QDialogButtonBox,
QLabel,
QVBoxLayout,
)
from mercurial.node import nullid
from ..util import hglib
from ..util.i18n import _
from . import (
cmdcore,
cmdui,
qtlib,
)
class RevertDialog(QDialog):
def __init__(self, repoagent, wfiles, rev, parent):
super(RevertDialog, self).__init__(parent)
self._repoagent = repoagent
self._cmdsession = cmdcore.nullCmdSession()
self.setWindowTitle(_('Revert - %s') % repoagent.displayName())
f = self.windowFlags()
self.setWindowFlags(f & ~Qt.WindowContextHelpButtonHint)
repo = repoagent.rawRepo()
self.wfiles = [repo.wjoin(wfile) for wfile in wfiles]
self.setLayout(QVBoxLayout())
if len(wfile) == 1:
lblText = _('<b>Revert %s to its contents'
' at the following revision?</b>') % (
hglib.tounicode(wfiles[0]))
else:
lblText = _('<b>Revert %d files to their contents'
' at the following revision?</b>') % (
len(wfiles))
lbl = QLabel(lblText)
self.layout().addWidget(lbl)
self._addRevertTargetCombo(rev)
self.allchk = QCheckBox(_('Revert all files to this revision'))
self.layout().addWidget(self.allchk)
BB = QDialogButtonBox
bbox = QDialogButtonBox(BB.Ok|BB.Cancel)
bbox.accepted.connect(self.accept)
bbox.rejected.connect(self.reject)
self.layout().addWidget(bbox)
self.bbox = bbox
def _addRevertTargetCombo(self, rev):
if rev is None:
raise ValueError('Cannot revert to working directory')
self.revcombo = QComboBox()
revnames = ['revision %d' % rev]
repo = self._repoagent.rawRepo()
ctx = repo[rev]
parents = ctx.parents()[:2]
if len(parents) == 1:
parentdesctemplate = ("revision %d's parent (i.e. revision %d)",)
else:
parentdesctemplate = (
_("revision %d's first parent (i.e. revision %d)"),
_("revision %d's second parent (i.e. revision %d)"),
)
for n, pctx in enumerate(parents):
if pctx.node() == nullid:
revdesc = _('null revision (i.e. remove file(s))')
else:
revdesc = parentdesctemplate[n] % (rev, pctx.rev())
revnames.append(revdesc)
self.revcombo.addItems(revnames)
reverttargets = [ctx] + parents
for n, ctx in enumerate(reverttargets):
self.revcombo.setItemData(n, ctx.hex())
self.layout().addWidget(self.revcombo)
def accept(self):
rev = self.revcombo.itemData(self.revcombo.currentIndex())
if self.allchk.isChecked():
if not qtlib.QuestionMsgBox(_('Confirm Revert'),
_('Reverting all files will discard changes and '
'leave affected files in a modified state.<br>'
'<br>Are you sure you want to use revert?<br><br>'
'(use update to checkout another revision)'),
parent=self):
return
cmdline = hglib.buildcmdargs('revert', all=True, rev=rev)
else:
files = map(hglib.tounicode, self.wfiles)
cmdline = hglib.buildcmdargs('revert', rev=rev, *files)
self.bbox.button(QDialogButtonBox.Ok).setEnabled(False)
self._cmdsession = sess = self._repoagent.runCommand(cmdline, self)
sess.commandFinished.connect(self._onCommandFinished)
@pyqtSlot(int)
def _onCommandFinished(self, ret):
if ret == 0:
self.reject()
else:
cmdui.errorMessageBox(self._cmdsession, self)
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