class PackagesDialog(DialogBase):
"""Package dependencies dialog."""
sig_setup_ready = Signal()
def __init__(
self,
parent=None,
packages=None,
pip_packages=None,
remove_only=False,
update_only=False,
):
"""About dialog."""
super(PackagesDialog, self).__init__(parent=parent)
# Variables
self.api = AnacondaAPI()
self.actions = None
self.packages = packages or []
self.pip_packages = pip_packages or []
# Widgets
self.stack = QStackedWidget()
self.table = QTableWidget()
self.text = QTextEdit()
self.label_description = LabelBase()
self.label_status = LabelBase()
self.progress_bar = QProgressBar()
self.button_ok = ButtonPrimary('Apply')
self.button_cancel = ButtonNormal('Cancel')
# Widget setup
self.text.setReadOnly(True)
self.stack.addWidget(self.table)
self.stack.addWidget(self.text)
if remove_only:
text = 'The following packages will be removed:<br>'
else:
text = 'The following packages will be modified:<br>'
self.label_description.setText(text)
self.label_description.setWordWrap(True)
self.label_description.setWordWrap(True)
self.label_status.setWordWrap(True)
self.table.horizontalScrollBar().setVisible(False)
self.table.setSelectionBehavior(QAbstractItemView.SelectRows)
self.table.setAlternatingRowColors(True)
self.table.setSelectionMode(QAbstractItemView.NoSelection)
self.table.setSortingEnabled(True)
self._hheader = self.table.horizontalHeader()
self._vheader = self.table.verticalHeader()
self._hheader.setStretchLastSection(True)
self._hheader.setDefaultAlignment(Qt.AlignLeft)
self._hheader.setSectionResizeMode(self._hheader.Fixed)
self._vheader.setSectionResizeMode(self._vheader.Fixed)
self.button_ok.setMinimumWidth(70)
self.button_ok.setDefault(True)
self.base_minimum_width = 300 if remove_only else 420
if remove_only:
self.setWindowTitle("Remove Packages")
elif update_only:
self.setWindowTitle("Update Packages")
else:
self.setWindowTitle("Install Packages")
self.setMinimumWidth(self.base_minimum_width)
# Layouts
layout_progress = QHBoxLayout()
layout_progress.addWidget(self.label_status)
layout_progress.addWidget(SpacerHorizontal())
layout_progress.addWidget(self.progress_bar)
layout_buttons = QHBoxLayout()
layout_buttons.addStretch()
layout_buttons.addWidget(self.button_cancel)
layout_buttons.addWidget(SpacerHorizontal())
layout_buttons.addWidget(self.button_ok)
layout = QVBoxLayout()
layout.addWidget(self.label_description)
layout.addWidget(SpacerVertical())
layout.addWidget(self.stack)
layout.addWidget(SpacerVertical())
layout.addLayout(layout_progress)
layout.addWidget(SpacerVertical())
layout.addWidget(SpacerVertical())
layout.addLayout(layout_buttons)
self.setLayout(layout)
# Signals
self.button_ok.clicked.connect(self.accept)
self.button_cancel.clicked.connect(self.reject)
self.button_ok.setDisabled(True)
# Setup
self.table.setDisabled(True)
self.update_status('Solving package specifications',
value=0,
max_value=0)
def setup(self, worker, output, error):
"""Setup the widget to include the list of dependencies."""
if not isinstance(output, dict):
output = {}
packages = sorted(pkg.split('==')[0] for pkg in self.packages)
success = output.get('success')
error = output.get('error', '')
exception_name = output.get('exception_name', '')
actions = output.get('actions', [])
prefix = worker.prefix
if exception_name:
message = exception_name
else:
# All requested packages already installed
message = output.get('message', ' ')
navi_deps_error = self.api.check_navigator_dependencies(
actions, prefix)
description = self.label_description.text()
if error:
description = 'No packages will be modified.'
self.stack.setCurrentIndex(1)
self.button_ok.setDisabled(True)
if self.api.is_offline():
error = ("Some of the functionality of Anaconda Navigator "
"will be limited in <b>offline mode</b>. <br><br>"
"Installation and upgrade actions will be subject to "
"the packages currently available on your package "
"cache.")
self.text.setText(error)
elif navi_deps_error:
description = 'No packages will be modified.'
error = ('Downgrading/removing these packages will modify '
'Anaconda Navigator dependencies.')
self.text.setText(error)
self.stack.setCurrentIndex(1)
message = 'NavigatorDependenciesError'
self.button_ok.setDisabled(True)
elif success and actions:
self.stack.setCurrentIndex(0)
# Conda 4.3.x
if isinstance(actions, list):
actions_link = actions[0].get('LINK', [])
actions_unlink = actions[0].get('UNLINK', [])
# Conda 4.4.x
else:
actions_link = actions.get('LINK', [])
actions_unlink = actions.get('UNLINK', [])
deps = set()
deps = deps.union({p['name'] for p in actions_link})
deps = deps.union({p['name'] for p in actions_unlink})
deps = deps - set(packages)
deps = sorted(list(deps))
count_total_packages = len(packages) + len(deps)
plural_total = 's' if count_total_packages != 1 else ''
plural_selected = 's' if len(packages) != 1 else ''
self.table.setRowCount(count_total_packages)
self.table.setColumnCount(4)
if actions_link:
description = '{0} package{1} will be installed'.format(
count_total_packages, plural_total)
self.table.showColumn(2)
self.table.showColumn(3)
elif actions_unlink and not actions_link:
self.table.hideColumn(2)
self.table.hideColumn(3)
self.table.setHorizontalHeaderLabels(
['Name', 'Unlink', 'Link', 'Channel'])
description = '{0} package{1} will be removed'.format(
count_total_packages, plural_total)
for row, pkg in enumerate(packages + deps):
link_item = [p for p in actions_link if p['name'] == pkg]
if not link_item:
link_item = {
'version': '-'.center(len('link')),
'channel': '-'.center(len('channel')),
}
else:
link_item = link_item[0]
unlink_item = [p for p in actions_unlink if p['name'] == pkg]
if not unlink_item:
unlink_item = {
'version': '-'.center(len('link')),
}
else:
unlink_item = unlink_item[0]
unlink_version = str(unlink_item['version'])
link_version = str(link_item['version'])
item_unlink_v = QTableWidgetItem(unlink_version)
item_link_v = QTableWidgetItem(link_version)
item_link_c = QTableWidgetItem(link_item['channel'])
if pkg in packages:
item_name = QTableWidgetItem(pkg)
else:
item_name = QTableWidgetItem('*' + pkg)
items = [item_name, item_unlink_v, item_link_v, item_link_c]
for column, item in enumerate(items):
item.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable)
self.table.setItem(row, column, item)
if deps:
message = (
'<b>*</b> indicates the package is a dependency of a '
'selected package{0}<br>').format(plural_selected)
self.button_ok.setEnabled(True)
self.table.resizeColumnsToContents()
unlink_width = self.table.columnWidth(1)
if unlink_width < 60:
self.table.setColumnWidth(1, 60)
self.table.setHorizontalHeaderLabels(
['Name ', 'Unlink ', 'Link ', 'Channel '])
self.table.setEnabled(True)
self.update_status(message=message)
self.label_description.setText(description)
# Adjust size after data has populated the table
self.table.resizeColumnsToContents()
width = sum(
self.table.columnWidth(i) for i in range(self.table.columnCount()))
delta = (self.width() - self.table.width() +
self.table.verticalHeader().width() + 10)
new_width = width + delta
if new_width < self.base_minimum_width:
new_width = self.base_minimum_width
self.setMinimumWidth(new_width)
self.setMaximumWidth(new_width)
self.sig_setup_ready.emit()
def update_status(self, message='', value=None, max_value=None):
"""Update status of packages dialog."""
self.label_status.setText(message)
if max_value is None and value is None:
self.progress_bar.setVisible(False)
else:
self.progress_bar.setVisible(True)
self.progress_bar.setMaximum(max_value)
self.progress_bar.setValue(value)
