Mercurial Repositories > eric / file comparison
comparison: src/eric7/CondaInterface/CondaExportDialog.py
src/eric7/CondaInterface/CondaExportDialog.py
- branch
- eric7
- changeset 9209
- b99e7fd55fd3
- parent 8881
- 54e42bc2437a
- child 9221
- bf71ee032bb4
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| 9208:3fc8dfeb6ebe | 9209:b99e7fd55fd3 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2019 - 2022 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to generate a requirements file for conda. | |
| 8 """ | |
| 9 | |
| 10 import os | |
| 11 | |
| 12 from PyQt6.QtCore import pyqtSlot, Qt | |
| 13 from PyQt6.QtWidgets import ( | |
| 14 QDialog, QDialogButtonBox, QAbstractButton, QApplication | |
| 15 ) | |
| 16 | |
| 17 from EricWidgets import EricMessageBox, EricFileDialog | |
| 18 from EricWidgets.EricPathPicker import EricPathPickerModes | |
| 19 from EricWidgets.EricApplication import ericApp | |
| 20 from EricGui.EricOverrideCursor import EricOverrideCursor | |
| 21 | |
| 22 from .Ui_CondaExportDialog import Ui_CondaExportDialog | |
| 23 | |
| 24 | |
| 25 class CondaExportDialog(QDialog, Ui_CondaExportDialog): | |
| 26 """ | |
| 27 Class implementing a dialog to generate a requirements file for conda. | |
| 28 """ | |
| 29 def __init__(self, conda, envName, envPrefix, parent=None): | |
| 30 """ | |
| 31 Constructor | |
| 32 | |
| 33 @param conda reference to the master object | |
| 34 @type Conda | |
| 35 @param envName name of the environment to create the requirements | |
| 36 file from | |
| 37 @type str | |
| 38 @param envPrefix prefix of the environment to create the requirements | |
| 39 file from | |
| 40 @type str | |
| 41 @param parent reference to the parent widget | |
| 42 @type QWidget | |
| 43 """ | |
| 44 super().__init__(parent) | |
| 45 self.setupUi(self) | |
| 46 self.setWindowFlags(Qt.WindowType.Window) | |
| 47 | |
| 48 self.__refreshButton = self.buttonBox.addButton( | |
| 49 self.tr("&Refresh"), QDialogButtonBox.ButtonRole.ActionRole) | |
| 50 | |
| 51 self.requirementsFilePicker.setMode(EricPathPickerModes.SAVE_FILE_MODE) | |
| 52 self.requirementsFilePicker.setFilters( | |
| 53 self.tr("Text Files (*.txt);;All Files (*)")) | |
| 54 | |
| 55 self.__conda = conda | |
| 56 self.__prefix = envPrefix | |
| 57 | |
| 58 self.environmentLabel.setText("<b>{0}</b>".format(envName)) | |
| 59 | |
| 60 self.__requirementsEdited = False | |
| 61 self.__requirementsAvailable = False | |
| 62 | |
| 63 self.__updateButtons() | |
| 64 | |
| 65 def closeEvent(self, e): | |
| 66 """ | |
| 67 Protected slot implementing a close event handler. | |
| 68 | |
| 69 @param e close event | |
| 70 @type QCloseEvent | |
| 71 """ | |
| 72 e.accept() | |
| 73 | |
| 74 @pyqtSlot(str) | |
| 75 def on_requirementsFilePicker_textChanged(self, txt): | |
| 76 """ | |
| 77 Private slot handling a change of the requirements file name. | |
| 78 | |
| 79 @param txt name of the requirements file | |
| 80 @type str | |
| 81 """ | |
| 82 self.__updateButtons() | |
| 83 | |
| 84 @pyqtSlot() | |
| 85 def on_requirementsEdit_textChanged(self): | |
| 86 """ | |
| 87 Private slot handling changes of the requirements text. | |
| 88 """ | |
| 89 self.__requirementsEdited = True | |
| 90 | |
| 91 @pyqtSlot(QAbstractButton) | |
| 92 def on_buttonBox_clicked(self, button): | |
| 93 """ | |
| 94 Private slot called by a button of the button box clicked. | |
| 95 | |
| 96 @param button button that was clicked | |
| 97 @type QAbstractButton | |
| 98 """ | |
| 99 if button == self.buttonBox.button( | |
| 100 QDialogButtonBox.StandardButton.Close | |
| 101 ): | |
| 102 self.close() | |
| 103 elif button == self.__refreshButton: | |
| 104 self.__refresh() | |
| 105 | |
| 106 def __refresh(self): | |
| 107 """ | |
| 108 Private slot to refresh the displayed list. | |
| 109 """ | |
| 110 ok = ( | |
| 111 EricMessageBox.yesNo( | |
| 112 self, | |
| 113 self.tr("Generate Requirements"), | |
| 114 self.tr("""The requirements were changed. Do you want""" | |
| 115 """ to overwrite these changes?""")) | |
| 116 if self.__requirementsEdited else | |
| 117 True | |
| 118 ) | |
| 119 if ok: | |
| 120 self.start() | |
| 121 | |
| 122 def start(self): | |
| 123 """ | |
| 124 Public method to start the command. | |
| 125 """ | |
| 126 self.requirementsEdit.clear() | |
| 127 self.__requirementsAvailable = False | |
| 128 | |
| 129 args = [ | |
| 130 "list", | |
| 131 "--export", | |
| 132 "--prefix", | |
| 133 self.__prefix, | |
| 134 ] | |
| 135 | |
| 136 with EricOverrideCursor(): | |
| 137 success, output = self.__conda.runProcess(args) | |
| 138 | |
| 139 if success: | |
| 140 self.requirementsEdit.setPlainText(output) | |
| 141 self.__requirementsAvailable = True | |
| 142 else: | |
| 143 self.requirementsEdit.setPlainText( | |
| 144 self.tr("No output generated by conda.")) | |
| 145 | |
| 146 self.__updateButtons() | |
| 147 | |
| 148 self.__requirementsEdited = False | |
| 149 | |
| 150 def __updateButtons(self): | |
| 151 """ | |
| 152 Private method to set the state of the various buttons. | |
| 153 """ | |
| 154 self.saveButton.setEnabled( | |
| 155 self.__requirementsAvailable and | |
| 156 bool(self.requirementsFilePicker.text()) | |
| 157 ) | |
| 158 self.saveToButton.setEnabled(self.__requirementsAvailable) | |
| 159 self.copyButton.setEnabled(self.__requirementsAvailable) | |
| 160 | |
| 161 aw = ericApp().getObject("ViewManager").activeWindow() | |
| 162 if aw and self.__requirementsAvailable: | |
| 163 self.insertButton.setEnabled(True) | |
| 164 self.replaceAllButton.setEnabled(True) | |
| 165 self.replaceSelectionButton.setEnabled( | |
| 166 aw.hasSelectedText()) | |
| 167 else: | |
| 168 self.insertButton.setEnabled(False) | |
| 169 self.replaceAllButton.setEnabled(False) | |
| 170 self.replaceSelectionButton.setEnabled(False) | |
| 171 | |
| 172 def __writeToFile(self, fileName): | |
| 173 """ | |
| 174 Private method to write the requirements text to a file. | |
| 175 | |
| 176 @param fileName name of the file to write to | |
| 177 @type str | |
| 178 """ | |
| 179 if os.path.exists(fileName): | |
| 180 ok = EricMessageBox.warning( | |
| 181 self, | |
| 182 self.tr("Generate Requirements"), | |
| 183 self.tr("""The file <b>{0}</b> already exists. Do you want""" | |
| 184 """ to overwrite it?""").format(fileName)) | |
| 185 if not ok: | |
| 186 return | |
| 187 | |
| 188 try: | |
| 189 with open(fileName, "w") as f: | |
| 190 f.write(self.requirementsEdit.toPlainText()) | |
| 191 except OSError as err: | |
| 192 EricMessageBox.critical( | |
| 193 self, | |
| 194 self.tr("Generate Requirements"), | |
| 195 self.tr("""<p>The requirements could not be written""" | |
| 196 """ to <b>{0}</b>.</p><p>Reason: {1}</p>""") | |
| 197 .format(fileName, str(err))) | |
| 198 | |
| 199 @pyqtSlot() | |
| 200 def on_saveButton_clicked(self): | |
| 201 """ | |
| 202 Private slot to save the requirements text to the requirements file. | |
| 203 """ | |
| 204 fileName = self.requirementsFilePicker.text() | |
| 205 self.__writeToFile(fileName) | |
| 206 | |
| 207 @pyqtSlot() | |
| 208 def on_saveToButton_clicked(self): | |
| 209 """ | |
| 210 Private slot to write the requirements text to a new file. | |
| 211 """ | |
| 212 fileName, selectedFilter = EricFileDialog.getSaveFileNameAndFilter( | |
| 213 self, | |
| 214 self.tr("Generate Requirements"), | |
| 215 os.path.expanduser("~"), | |
| 216 self.tr("Text Files (*.txt);;All Files (*)"), | |
| 217 None, | |
| 218 EricFileDialog.DontConfirmOverwrite | |
| 219 ) | |
| 220 if fileName: | |
| 221 ext = os.path.splitext(fileName)[1] | |
| 222 if not ext: | |
| 223 ex = selectedFilter.split("(*")[1].split(")")[0] | |
| 224 if ex: | |
| 225 fileName += ex | |
| 226 self.__writeToFile(fileName) | |
| 227 | |
| 228 @pyqtSlot() | |
| 229 def on_copyButton_clicked(self): | |
| 230 """ | |
| 231 Private slot to copy the requirements text to the clipboard. | |
| 232 """ | |
| 233 txt = self.requirementsEdit.toPlainText() | |
| 234 cb = QApplication.clipboard() | |
| 235 cb.setText(txt) | |
| 236 | |
| 237 @pyqtSlot() | |
| 238 def on_insertButton_clicked(self): | |
| 239 """ | |
| 240 Private slot to insert the requirements text at the cursor position | |
| 241 of the current editor. | |
| 242 """ | |
| 243 aw = ericApp().getObject("ViewManager").activeWindow() | |
| 244 if aw: | |
| 245 aw.beginUndoAction() | |
| 246 cline, cindex = aw.getCursorPosition() | |
| 247 aw.insertAt(self.requirementsEdit.toPlainText(), cline, cindex) | |
| 248 aw.endUndoAction() | |
| 249 | |
| 250 @pyqtSlot() | |
| 251 def on_replaceSelectionButton_clicked(self): | |
| 252 """ | |
| 253 Private slot to replace the selected text of the current editor | |
| 254 with the requirements text. | |
| 255 """ | |
| 256 aw = ericApp().getObject("ViewManager").activeWindow() | |
| 257 if aw: | |
| 258 aw.beginUndoAction() | |
| 259 aw.replaceSelectedText(self.requirementsEdit.toPlainText()) | |
| 260 aw.endUndoAction() | |
| 261 | |
| 262 @pyqtSlot() | |
| 263 def on_replaceAllButton_clicked(self): | |
| 264 """ | |
| 265 Private slot to replace the text of the current editor with the | |
| 266 requirements text. | |
| 267 """ | |
| 268 aw = ericApp().getObject("ViewManager").activeWindow() | |
| 269 if aw: | |
| 270 aw.setText(self.requirementsEdit.toPlainText()) |
