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thg / tortoisehg / hgqt / archive.py

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# archive.py - TortoiseHg's dialog for archiving a repo revision
#
# Copyright 2009 Emmanuel Rosa <goaway1000@gmail.com>
# Copyright 2010 Johan Samyn <johan.samyn@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.

import os

from PyQt4.QtCore import *
from PyQt4.QtGui import *

from mercurial import hg, error

from tortoisehg.hgqt.i18n import _
from tortoisehg.util import hglib, paths
from tortoisehg.hgqt import cmdui, qtlib, thgrepo

WD_PARENT = _('= Working Directory Parent =')

class ArchiveDialog(QDialog):
    """ Dialog to archive a particular Mercurial revision """

    output = pyqtSignal(QString, QString)
    makeLogVisible = pyqtSignal(bool)
    progress = pyqtSignal(QString, object, QString, QString, object)

    def __init__(self, ui, repo, rev=None, parent=None):
        super(ArchiveDialog, self).__init__(parent)

        # main layout
        self.vbox = QVBoxLayout()
        self.vbox.setSpacing(6)
        self.grid = QGridLayout()
        self.grid.setSpacing(6)
        self.vbox.addLayout(self.grid)

        # content selection
        self.rev_lbl = QLabel(_('Revision:'))
        self.rev_lbl.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
        self.rev_combo = QComboBox()
        self.rev_combo.setEditable(True)
        self.rev_combo.setSizeAdjustPolicy(QComboBox.AdjustToContents)
        self.files_in_rev_chk = QCheckBox(
                _('Only files modified/created in this revision'))
        self.subrepos_chk = QCheckBox(_('Recurse into subrepositories'))
        self.grid.addWidget(self.rev_lbl, 0, 0)
        self.grid.addWidget(self.rev_combo, 0, 1)
        self.grid.addWidget(self.files_in_rev_chk, 1, 1)
        self.grid.addWidget(self.subrepos_chk, 2, 1)

        # selecting a destination
        self.dest_lbl = QLabel(_('Destination path:'))
        self.dest_lbl.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
        self.dest_edit = QLineEdit()
        self.dest_edit.setMinimumWidth(300)
        self.dest_btn = QPushButton(_('Browse...'))
        self.dest_btn.setAutoDefault(False)
        self.grid.addWidget(self.dest_lbl, 3, 0)
        self.grid.addWidget(self.dest_edit, 3, 1)
        self.grid.addWidget(self.dest_btn, 3, 2)

        # archive type selection
        self.types_lbl = QLabel(_('Archive types:'))
        self.types_lbl.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
        def radio(label):
            return QRadioButton(label, None)
        self.filesradio = radio(_('Directory of files'))
        self.tarradio = radio(_('Uncompressed tar archive'))
        self.tbz2radio = radio(_('Tar archive compressed using bzip2'))
        self.tgzradio = radio(_('Tar archive compressed using gzip'))
        self.uzipradio = radio(_('Uncompressed zip archive'))
        self.zipradio = radio(_('Zip archive compressed using deflate'))
        self.grid.addWidget(self.types_lbl, 4, 0)
        self.grid.addWidget(self.filesradio, 4, 1)
        self.grid.addWidget(self.tarradio, 5, 1)
        self.grid.addWidget(self.tbz2radio, 6, 1)
        self.grid.addWidget(self.tgzradio, 7, 1)
        self.grid.addWidget(self.uzipradio, 8, 1)
        self.grid.addWidget(self.zipradio, 9, 1)

        # some extras
        self.hgcmd_lbl = QLabel(_('Hg command:'))
        self.hgcmd_lbl.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
        self.hgcmd_txt = QLineEdit()
        self.hgcmd_txt.setReadOnly(True)
        self.keep_open_chk = QCheckBox(_('Always show output'))
        self.grid.addWidget(self.hgcmd_lbl, 10, 0)
        self.grid.addWidget(self.hgcmd_txt, 10, 1)
        self.grid.addWidget(self.keep_open_chk, 11, 1)

        # command widget
        self.cmd = cmdui.Widget(True, True, self)
        self.cmd.commandStarted.connect(self.command_started)
        self.cmd.commandFinished.connect(self.command_finished)
        self.cmd.commandCanceling.connect(self.command_canceling)
        self.cmd.output.connect(self.output)
        self.cmd.makeLogVisible.connect(self.makeLogVisible)
        self.cmd.progress.connect(self.progress)
        self.cmd.setHidden(True)
        self.vbox.addWidget(self.cmd)

        # bottom buttons
        self.hbox = QHBoxLayout()
        self.arch_btn = QPushButton(_('&Archive'))
        self.arch_btn.setDefault(True)
        self.close_btn = QPushButton(_('&Close'))
        self.close_btn.setAutoDefault(False)
        self.close_btn.setFocus()
        self.detail_btn = QPushButton(_('&Detail'))
        self.detail_btn.setAutoDefault(False)
        self.detail_btn.setHidden(True)
        self.cancel_btn = QPushButton(_('Cancel'))
        self.cancel_btn.setAutoDefault(False)
        self.cancel_btn.setHidden(True)
        self.hbox.addWidget(self.detail_btn)
        self.hbox.addStretch(0)
        self.hbox.addWidget(self.arch_btn)
        self.hbox.addWidget(self.close_btn)
        self.hbox.addWidget(self.cancel_btn)
        self.vbox.addLayout(self.hbox)

        # set default values
        self.ui = ui
        self.repo = repo
        self.initrev = rev
        self.prevtarget = None
        self.rev_combo.addItem(WD_PARENT)
        for b in self.repo.branchtags():
            self.rev_combo.addItem(b)
        tags = list(self.repo.tags())
        tags.sort(reverse=True)
        for t in tags:
            self.rev_combo.addItem(t)
        if self.initrev:
            text = str(self.initrev)
            if self.rev_combo.findText(text, Qt.MatchFlags(Qt.MatchExactly)) == -1:
                self.rev_combo.insertItems(0, [text])
        self.rev_combo.setMaxVisibleItems(self.rev_combo.count())
        self.rev_combo.setCurrentIndex(0)
        self.subrepos_chk.setChecked(self.get_subrepos_present())
        self.dest_edit.setText(hglib.tounicode(self.repo.root))
        self.filesradio.setChecked(True)
        self.update_path()

        # connecting slots
        self.dest_edit.textEdited.connect(self.dest_edited)
        self.connect(self.rev_combo, SIGNAL('currentIndexChanged(int)'),
                     self.rev_combo_changed)
        self.connect(self.rev_combo, SIGNAL('editTextChanged(QString)'),
                     self.rev_combo_changed)
        self.dest_btn.clicked.connect(self.browse_clicked)
        self.files_in_rev_chk.stateChanged.connect(self.dest_edited)
        self.subrepos_chk.toggled.connect(self.onSubreposToggled)
        self.filesradio.toggled.connect(self.update_path)
        self.tarradio.toggled.connect(self.update_path)
        self.tbz2radio.toggled.connect(self.update_path)
        self.tgzradio.toggled.connect(self.update_path)
        self.uzipradio.toggled.connect(self.update_path)
        self.zipradio.toggled.connect(self.update_path)
        self.arch_btn.clicked.connect(self.archive)
        self.detail_btn.clicked.connect(self.detail_clicked)
        self.close_btn.clicked.connect(self.close)
        self.cancel_btn.clicked.connect(self.cancel_clicked)

        # dialog setting
        self.setWindowTitle(_('Archive - %s') % self.repo.displayname)
        self.setWindowIcon(qtlib.geticon('hg-archive'))
        self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)
        self.setLayout(self.vbox)
        self.layout().setSizeConstraint(QLayout.SetFixedSize)
        self.rev_combo.setFocus()
        self._readsettings()

    def rev_combo_changed(self, index):
        self.subrepos_chk.setChecked(self.get_subrepos_present())
        self.update_path()

    def dest_edited(self):
        path = hglib.fromunicode(self.dest_edit.text())
        type = self.get_selected_archive_type()['type']
        self.compose_command(path, type)

    def browse_clicked(self):
        """Select the destination directory or file"""
        dest = unicode(self.dest_edit.text())
        if not os.path.exists(dest):
            dest = os.path.dirname(dest)
        select = self.get_selected_archive_type()
        FD = QFileDialog
        if select['type'] == 'files':
            caption = _('Select Destination Folder')
            response = FD.getExistingDirectory(parent=self, caption=caption,
                    directory=dest, options=FD.ShowDirsOnly | FD.ReadOnly)
        else:
            caption = _('Open File')
            ext = '*' + select['ext']
            filter = '%s (%s)\nAll Files (*.*)' % (select['label'], ext)
            response = FD.getOpenFileName(parent=self, caption=caption,
                    directory=dest, filter=filter, options=FD.ReadOnly)
        if response:
            self.dest_edit.setText(response)
            self.update_path()

    def onSubreposToggled(self):
        path = hglib.fromunicode(self.dest_edit.text())
        type = self.get_selected_archive_type()['type']
        self.compose_command(path, type)

    def get_subrepos_present(self):
        rev = self.get_selected_rev()
        ctx = self.repo[rev]
        return '.hgsubstate' in ctx.files() or '.hgsubstate' in ctx.manifest()

    def get_selected_rev(self):
        rev = self.rev_combo.currentText()
        if rev == WD_PARENT:
            rev = '.'
        else:
            rev = hglib.fromunicode(rev)
        return rev

    def get_selected_archive_type(self):
        """Return a dictionary describing the selected archive type"""
        if self.tarradio.isChecked():
            return {'type': 'tar', 'ext': '.tar', 'label': _('Tar archives')}
        elif self.tbz2radio.isChecked():
            return {'type': 'tbz2', 'ext': '.tar.bz2',
                    'label': _('Bzip2 tar archives')}
        elif self.tgzradio.isChecked():
            return {'type': 'tgz', 'ext': '.tar.gz',
                    'label': _('Gzip tar archives')}
        elif self.uzipradio.isChecked():
            return {'type': 'uzip', 'ext': '.zip',
                    'label': _('Zip archives')}
        elif self.zipradio.isChecked():
            return {'type': 'zip', 'ext': '.zip',
                    'label': _('Zip archives')}
        return {'type': 'files', 'ext': '', 'label': _('Directory of files')}

    def update_path(self):
        def remove_ext(path):
            for ext in ('.tar', '.tar.bz2', '.tar.gz', '.zip'):
                if path.endswith(ext):
                    return path.replace(ext, '')
            return path
        def remove_rev(path):
            l = ''
            for i in xrange(self.rev_combo.count() - 1):
                l += unicode(self.rev_combo.itemText(i))
            revs = [rev[0] for rev in l]
            revs.append(wdrev)
            if not self.prevtarget is None:
                revs.append(self.prevtarget)
            for rev in ['_' + rev for rev in revs]:
                if path.endswith(rev):
                    return path.replace(rev, '')
            return path
        def add_rev(path, rev):
            return '%s_%s' % (path, rev)
        def add_ext(path):
            select = self.get_selected_archive_type()
            if select['type'] != 'files':
                path += select['ext']
            return path
        text = unicode(self.rev_combo.currentText())
        if len(text) == 0:
            return
        wdrev = str(self.repo['.'].rev())
        if text == WD_PARENT:
            text = wdrev
        else:
            try:
                self.repo[hglib.fromunicode(text)]
            except (error.RepoError, error.LookupError):
                return
        path = unicode(self.dest_edit.text())
        path = remove_ext(path)
        path = remove_rev(path)
        path = add_rev(path, text)
        path = add_ext(path)
        self.dest_edit.setText(path)
        self.prevtarget = text
        type = self.get_selected_archive_type()['type']
        self.compose_command(hglib.fromunicode(path), type)

    def compose_command(self, dest, type):
        cmdline = ['archive', '--repository', self.repo.root]
        rev = self.get_selected_rev()
        cmdline.append('-r')
        cmdline.append(rev)
        if self.subrepos_chk.isChecked():
            cmdline.append('-S')
        cmdline.append('-t')
        cmdline.append(type)
        if self.files_in_rev_chk.isChecked():
            ctx = self.repo[rev]
            for f in ctx.files():
                cmdline.append('-I')
                cmdline.append(f)
        cmdline.append('--')
        cmdline.append(dest)  # dest: local str
        self.hgcmd_txt.setText(hglib.tounicode('hg ' + ' '.join(cmdline)))
        return cmdline

    def archive(self):
        # verify input
        type = self.get_selected_archive_type()['type']
        dest = unicode(self.dest_edit.text())
        if os.path.exists(dest):
            if type == 'files':
                if os.path.isfile(dest):
                    qtlib.WarningMsgBox(_('Duplicate Name'),
                            _('The destination "%s" already exists as '
                              'a file!') % dest)
                    return False
                elif os.listdir(dest):
                    if not qtlib.QuestionMsgBox(_('Confirm Overwrite'),
                                 _('The directory "%s" is not empty!\n\n'
                                   'Do you want to overwrite it?') % dest,
                                 parent=self):
                        return False
            else:
                if os.path.isfile(dest):
                    if not qtlib.QuestionMsgBox(_('Confirm Overwrite'),
                                 _('The file "%s" already exists!\n\n'
                                   'Do you want to overwrite it?') % dest,
                                 parent=self):
                        return False
                else:
                    qtlib.WarningMsgBox(_('Duplicate Name'),
                          _('The destination "%s" already exists as '
                            'a folder!') % dest)
                    return False

        # prepare command line
        cmdline = self.compose_command(hglib.fromunicode(dest), type)

        if self.files_in_rev_chk.isChecked():
            self.savedcwd = os.getcwd()
            os.chdir(self.repo.root)

        # start archiving
        self.cmd.run(cmdline)

    def detail_clicked(self):
        if self.cmd.outputShown():
            self.cmd.setShowOutput(False)
        else:
            self.cmd.setShowOutput(True)

    def cancel_clicked(self):
        self.cmd.cancel()

    def command_started(self):
        self.dest_edit.setEnabled(False)
        self.rev_combo.setEnabled(False)
        self.dest_btn.setEnabled(False)
        self.files_in_rev_chk.setEnabled(False)
        self.filesradio.setEnabled(False)
        self.tarradio.setEnabled(False)
        self.tbz2radio.setEnabled(False)
        self.tgzradio.setEnabled(False)
        self.uzipradio.setEnabled(False)
        self.zipradio.setEnabled(False)
        self.cmd.setShown(True)
        self.arch_btn.setHidden(True)
        self.close_btn.setHidden(True)
        self.cancel_btn.setShown(True)
        self.detail_btn.setShown(True)

    def command_finished(self, ret):
        if self.files_in_rev_chk.isChecked():
            os.chdir(self.savedcwd)
        if ret is not 0 or self.cmd.outputShown()\
                or self.keep_open_chk.isChecked():
            if not self.cmd.outputShown():
                self.detail_btn.click()
            self.cancel_btn.setHidden(True)
            self.close_btn.setShown(True)
            self.close_btn.setAutoDefault(True)
            self.close_btn.setFocus()
        else:
            self.reject()

    def command_canceling(self):
        self.cancel_btn.setDisabled(True)

    def closeEvent(self, event):
        self._writesettings()
        super(ArchiveDialog, self).closeEvent(event)

    def _readsettings(self):
        s = QSettings()
        self.restoreGeometry(s.value('archive/geom').toByteArray())

    def _writesettings(self):
        s = QSettings()
        s.setValue('archive/geom', self.saveGeometry())

def run(ui, *revs, **opts):
    rev = opts.get('rev')
    repo = thgrepo.repository(ui, paths.find_root())
    return ArchiveDialog(repo.ui, repo, rev)