Mercurial Repositories > eric / file comparison
comparison: Plugins/VcsPlugins/vcsGit/GitReflogBrowserDialog.py
Plugins/VcsPlugins/vcsGit/GitReflogBrowserDialog.py
- changeset 6020
- baf6da1ae288
- child 6048
- 82ad8ec9548c
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| 6019:58ecdaf0b789 | 6020:baf6da1ae288 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2014 - 2017 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to browse the reflog history. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 try: | |
| 12 str = unicode | |
| 13 except NameError: | |
| 14 pass | |
| 15 | |
| 16 import os | |
| 17 | |
| 18 from PyQt5.QtCore import pyqtSlot, Qt, QProcess, QTimer, QPoint | |
| 19 from PyQt5.QtGui import QCursor | |
| 20 from PyQt5.QtWidgets import QWidget, QDialogButtonBox, QHeaderView, \ | |
| 21 QTreeWidgetItem, QApplication, QLineEdit | |
| 22 | |
| 23 from E5Gui import E5MessageBox | |
| 24 | |
| 25 from .Ui_GitReflogBrowserDialog import Ui_GitReflogBrowserDialog | |
| 26 | |
| 27 from .GitUtilities import strToQByteArray | |
| 28 | |
| 29 import Preferences | |
| 30 | |
| 31 | |
| 32 class GitReflogBrowserDialog(QWidget, Ui_GitReflogBrowserDialog): | |
| 33 """ | |
| 34 Class implementing a dialog to browse the reflog history. | |
| 35 """ | |
| 36 CommitIdColumn = 0 | |
| 37 SelectorColumn = 1 | |
| 38 NameColumn = 2 | |
| 39 OperationColumn = 3 | |
| 40 SubjectColumn = 4 | |
| 41 | |
| 42 def __init__(self, vcs, parent=None): | |
| 43 """ | |
| 44 Constructor | |
| 45 | |
| 46 @param vcs reference to the vcs object | |
| 47 @param parent reference to the parent widget (QWidget) | |
| 48 """ | |
| 49 super(GitReflogBrowserDialog, self).__init__(parent) | |
| 50 self.setupUi(self) | |
| 51 | |
| 52 self.__position = QPoint() | |
| 53 | |
| 54 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False) | |
| 55 self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True) | |
| 56 | |
| 57 self.logTree.headerItem().setText(self.logTree.columnCount(), "") | |
| 58 | |
| 59 self.refreshButton = self.buttonBox.addButton( | |
| 60 self.tr("&Refresh"), QDialogButtonBox.ActionRole) | |
| 61 self.refreshButton.setToolTip( | |
| 62 self.tr("Press to refresh the list of commits")) | |
| 63 self.refreshButton.setEnabled(False) | |
| 64 | |
| 65 self.vcs = vcs | |
| 66 | |
| 67 self.__formatTemplate = ( | |
| 68 'format:recordstart%n' | |
| 69 'commit|%h%n' | |
| 70 'selector|%gd%n' | |
| 71 'name|%gn%n' | |
| 72 'subject|%gs%n' | |
| 73 'recordend%n' | |
| 74 ) | |
| 75 | |
| 76 self.repodir = "" | |
| 77 self.__currentCommitId = "" | |
| 78 | |
| 79 self.__initData() | |
| 80 self.__resetUI() | |
| 81 | |
| 82 self.process = QProcess() | |
| 83 self.process.finished.connect(self.__procFinished) | |
| 84 self.process.readyReadStandardOutput.connect(self.__readStdout) | |
| 85 self.process.readyReadStandardError.connect(self.__readStderr) | |
| 86 | |
| 87 def __initData(self): | |
| 88 """ | |
| 89 Private method to (re-)initialize some data. | |
| 90 """ | |
| 91 self.buf = [] # buffer for stdout | |
| 92 self.__started = False | |
| 93 self.__skipEntries = 0 | |
| 94 | |
| 95 def closeEvent(self, e): | |
| 96 """ | |
| 97 Protected slot implementing a close event handler. | |
| 98 | |
| 99 @param e close event (QCloseEvent) | |
| 100 """ | |
| 101 if self.process is not None and \ | |
| 102 self.process.state() != QProcess.NotRunning: | |
| 103 self.process.terminate() | |
| 104 QTimer.singleShot(2000, self.process.kill) | |
| 105 self.process.waitForFinished(3000) | |
| 106 | |
| 107 self.__position = self.pos() | |
| 108 | |
| 109 e.accept() | |
| 110 | |
| 111 def show(self): | |
| 112 """ | |
| 113 Public slot to show the dialog. | |
| 114 """ | |
| 115 if not self.__position.isNull(): | |
| 116 self.move(self.__position) | |
| 117 self.__resetUI() | |
| 118 | |
| 119 super(GitReflogBrowserDialog, self).show() | |
| 120 | |
| 121 def __resetUI(self): | |
| 122 """ | |
| 123 Private method to reset the user interface. | |
| 124 """ | |
| 125 self.limitSpinBox.setValue(self.vcs.getPlugin().getPreferences( | |
| 126 "LogLimit")) | |
| 127 | |
| 128 self.logTree.clear() | |
| 129 | |
| 130 def __resizeColumnsLog(self): | |
| 131 """ | |
| 132 Private method to resize the log tree columns. | |
| 133 """ | |
| 134 self.logTree.header().resizeSections(QHeaderView.ResizeToContents) | |
| 135 self.logTree.header().setStretchLastSection(True) | |
| 136 | |
| 137 def __generateReflogItem(self, commitId, selector, name, subject): | |
| 138 """ | |
| 139 Private method to generate a reflog tree entry. | |
| 140 | |
| 141 @param commitId commit id info (string) | |
| 142 @param selector selector info (string) | |
| 143 @param name name info (string) | |
| 144 @param subject subject of the reflog entry (string) | |
| 145 @return reference to the generated item (QTreeWidgetItem) | |
| 146 """ | |
| 147 operation, subject = subject.strip().split(": ", 1) | |
| 148 columnLabels = [ | |
| 149 commitId, | |
| 150 selector, | |
| 151 name, | |
| 152 operation, | |
| 153 subject, | |
| 154 ] | |
| 155 itm = QTreeWidgetItem(self.logTree, columnLabels) | |
| 156 return itm | |
| 157 | |
| 158 def __getReflogEntries(self, skip=0): | |
| 159 """ | |
| 160 Private method to retrieve reflog entries from the repository. | |
| 161 | |
| 162 @param skip number of reflog entries to skip (integer) | |
| 163 """ | |
| 164 self.refreshButton.setEnabled(False) | |
| 165 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False) | |
| 166 self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(True) | |
| 167 self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True) | |
| 168 QApplication.processEvents() | |
| 169 | |
| 170 QApplication.setOverrideCursor(QCursor(Qt.WaitCursor)) | |
| 171 QApplication.processEvents() | |
| 172 | |
| 173 self.buf = [] | |
| 174 self.cancelled = False | |
| 175 self.errors.clear() | |
| 176 self.intercept = False | |
| 177 | |
| 178 args = self.vcs.initCommand("log") | |
| 179 args.append("--walk-reflogs") | |
| 180 args.append('--max-count={0}'.format(self.limitSpinBox.value())) | |
| 181 args.append('--abbrev={0}'.format( | |
| 182 self.vcs.getPlugin().getPreferences("CommitIdLength"))) | |
| 183 args.append('--format={0}'.format(self.__formatTemplate)) | |
| 184 args.append('--skip={0}'.format(skip)) | |
| 185 | |
| 186 self.process.kill() | |
| 187 | |
| 188 self.process.setWorkingDirectory(self.repodir) | |
| 189 | |
| 190 self.inputGroup.setEnabled(True) | |
| 191 self.inputGroup.show() | |
| 192 | |
| 193 self.process.start('git', args) | |
| 194 procStarted = self.process.waitForStarted(5000) | |
| 195 if not procStarted: | |
| 196 self.inputGroup.setEnabled(False) | |
| 197 self.inputGroup.hide() | |
| 198 E5MessageBox.critical( | |
| 199 self, | |
| 200 self.tr('Process Generation Error'), | |
| 201 self.tr( | |
| 202 'The process {0} could not be started. ' | |
| 203 'Ensure, that it is in the search path.' | |
| 204 ).format('git')) | |
| 205 | |
| 206 def start(self, projectdir): | |
| 207 """ | |
| 208 Public slot to start the git log command. | |
| 209 | |
| 210 @param projectdir directory name of the project (string) | |
| 211 """ | |
| 212 self.errorGroup.hide() | |
| 213 QApplication.processEvents() | |
| 214 | |
| 215 self.__initData() | |
| 216 | |
| 217 # find the root of the repo | |
| 218 self.repodir = projectdir | |
| 219 while not os.path.isdir(os.path.join(self.repodir, self.vcs.adminDir)): | |
| 220 self.repodir = os.path.dirname(self.repodir) | |
| 221 if os.path.splitdrive(self.repodir)[1] == os.sep: | |
| 222 return | |
| 223 | |
| 224 self.activateWindow() | |
| 225 self.raise_() | |
| 226 | |
| 227 self.logTree.clear() | |
| 228 self.__started = True | |
| 229 self.__getReflogEntries() | |
| 230 | |
| 231 def __procFinished(self, exitCode, exitStatus): | |
| 232 """ | |
| 233 Private slot connected to the finished signal. | |
| 234 | |
| 235 @param exitCode exit code of the process (integer) | |
| 236 @param exitStatus exit status of the process (QProcess.ExitStatus) | |
| 237 """ | |
| 238 self.__processBuffer() | |
| 239 self.__finish() | |
| 240 | |
| 241 def __finish(self): | |
| 242 """ | |
| 243 Private slot called when the process finished or the user pressed | |
| 244 the button. | |
| 245 """ | |
| 246 if self.process is not None and \ | |
| 247 self.process.state() != QProcess.NotRunning: | |
| 248 self.process.terminate() | |
| 249 QTimer.singleShot(2000, self.process.kill) | |
| 250 self.process.waitForFinished(3000) | |
| 251 | |
| 252 QApplication.restoreOverrideCursor() | |
| 253 | |
| 254 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True) | |
| 255 self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False) | |
| 256 self.buttonBox.button(QDialogButtonBox.Close).setDefault(True) | |
| 257 | |
| 258 self.inputGroup.setEnabled(False) | |
| 259 self.inputGroup.hide() | |
| 260 self.refreshButton.setEnabled(True) | |
| 261 | |
| 262 def __processBuffer(self): | |
| 263 """ | |
| 264 Private method to process the buffered output of the git log command. | |
| 265 """ | |
| 266 noEntries = 0 | |
| 267 | |
| 268 for line in self.buf: | |
| 269 line = line.rstrip() | |
| 270 if line == "recordstart": | |
| 271 logEntry = {} | |
| 272 elif line == "recordend": | |
| 273 if len(logEntry) > 1: | |
| 274 self.__generateReflogItem( | |
| 275 logEntry["commit"], logEntry["selector"], | |
| 276 logEntry["name"], logEntry["subject"], | |
| 277 ) | |
| 278 noEntries += 1 | |
| 279 else: | |
| 280 try: | |
| 281 key, value = line.split("|", 1) | |
| 282 except ValueError: | |
| 283 key = "" | |
| 284 value = line | |
| 285 if key in ("commit", "selector", "name", "subject"): | |
| 286 logEntry[key] = value.strip() | |
| 287 | |
| 288 self.__resizeColumnsLog() | |
| 289 | |
| 290 if self.__started: | |
| 291 self.logTree.setCurrentItem(self.logTree.topLevelItem(0)) | |
| 292 self.__started = False | |
| 293 | |
| 294 self.__skipEntries += noEntries | |
| 295 if noEntries < self.limitSpinBox.value() and not self.cancelled: | |
| 296 self.nextButton.setEnabled(False) | |
| 297 self.limitSpinBox.setEnabled(False) | |
| 298 else: | |
| 299 self.nextButton.setEnabled(True) | |
| 300 self.limitSpinBox.setEnabled(True) | |
| 301 | |
| 302 # restore current item | |
| 303 if self.__currentCommitId: | |
| 304 items = self.logTree.findItems( | |
| 305 self.__currentCommitId, Qt.MatchExactly, self.CommitIdColumn) | |
| 306 if items: | |
| 307 self.logTree.setCurrentItem(items[0]) | |
| 308 self.__currentCommitId = "" | |
| 309 | |
| 310 def __readStdout(self): | |
| 311 """ | |
| 312 Private slot to handle the readyReadStandardOutput signal. | |
| 313 | |
| 314 It reads the output of the process and inserts it into a buffer. | |
| 315 """ | |
| 316 self.process.setReadChannel(QProcess.StandardOutput) | |
| 317 | |
| 318 while self.process.canReadLine(): | |
| 319 line = str(self.process.readLine(), | |
| 320 Preferences.getSystem("IOEncoding"), | |
| 321 'replace') | |
| 322 self.buf.append(line) | |
| 323 | |
| 324 def __readStderr(self): | |
| 325 """ | |
| 326 Private slot to handle the readyReadStandardError signal. | |
| 327 | |
| 328 It reads the error output of the process and inserts it into the | |
| 329 error pane. | |
| 330 """ | |
| 331 if self.process is not None: | |
| 332 s = str(self.process.readAllStandardError(), | |
| 333 Preferences.getSystem("IOEncoding"), | |
| 334 'replace') | |
| 335 self.__showError(s) | |
| 336 | |
| 337 def __showError(self, out): | |
| 338 """ | |
| 339 Private slot to show some error. | |
| 340 | |
| 341 @param out error to be shown (string) | |
| 342 """ | |
| 343 self.errorGroup.show() | |
| 344 self.errors.insertPlainText(out) | |
| 345 self.errors.ensureCursorVisible() | |
| 346 | |
| 347 def on_buttonBox_clicked(self, button): | |
| 348 """ | |
| 349 Private slot called by a button of the button box clicked. | |
| 350 | |
| 351 @param button button that was clicked (QAbstractButton) | |
| 352 """ | |
| 353 if button == self.buttonBox.button(QDialogButtonBox.Close): | |
| 354 self.close() | |
| 355 elif button == self.buttonBox.button(QDialogButtonBox.Cancel): | |
| 356 self.cancelled = True | |
| 357 self.__finish() | |
| 358 elif button == self.refreshButton: | |
| 359 self.on_refreshButton_clicked() | |
| 360 | |
| 361 @pyqtSlot() | |
| 362 def on_refreshButton_clicked(self): | |
| 363 """ | |
| 364 Private slot to refresh the log. | |
| 365 """ | |
| 366 # save the current item's commit ID | |
| 367 itm = self.logTree.currentItem() | |
| 368 if itm is not None: | |
| 369 self.__currentCommitId = itm.text(self.CommitIdColumn) | |
| 370 else: | |
| 371 self.__currentCommitId = "" | |
| 372 | |
| 373 self.start(self.repodir) | |
| 374 | |
| 375 def on_passwordCheckBox_toggled(self, isOn): | |
| 376 """ | |
| 377 Private slot to handle the password checkbox toggled. | |
| 378 | |
| 379 @param isOn flag indicating the status of the check box (boolean) | |
| 380 """ | |
| 381 if isOn: | |
| 382 self.input.setEchoMode(QLineEdit.Password) | |
| 383 else: | |
| 384 self.input.setEchoMode(QLineEdit.Normal) | |
| 385 | |
| 386 @pyqtSlot() | |
| 387 def on_sendButton_clicked(self): | |
| 388 """ | |
| 389 Private slot to send the input to the git process. | |
| 390 """ | |
| 391 inputTxt = self.input.text() | |
| 392 inputTxt += os.linesep | |
| 393 | |
| 394 if self.passwordCheckBox.isChecked(): | |
| 395 self.errors.insertPlainText(os.linesep) | |
| 396 self.errors.ensureCursorVisible() | |
| 397 else: | |
| 398 self.errors.insertPlainText(inputTxt) | |
| 399 self.errors.ensureCursorVisible() | |
| 400 self.errorGroup.show() | |
| 401 | |
| 402 self.process.write(strToQByteArray(inputTxt)) | |
| 403 | |
| 404 self.passwordCheckBox.setChecked(False) | |
| 405 self.input.clear() | |
| 406 | |
| 407 def on_input_returnPressed(self): | |
| 408 """ | |
| 409 Private slot to handle the press of the return key in the input field. | |
| 410 """ | |
| 411 self.intercept = True | |
| 412 self.on_sendButton_clicked() | |
| 413 | |
| 414 def keyPressEvent(self, evt): | |
| 415 """ | |
| 416 Protected slot to handle a key press event. | |
| 417 | |
| 418 @param evt the key press event (QKeyEvent) | |
| 419 """ | |
| 420 if self.intercept: | |
| 421 self.intercept = False | |
| 422 evt.accept() | |
| 423 return | |
| 424 super(GitReflogBrowserDialog, self).keyPressEvent(evt) | |
| 425 | |
| 426 @pyqtSlot() | |
| 427 def on_nextButton_clicked(self): | |
| 428 """ | |
| 429 Private slot to handle the Next button. | |
| 430 """ | |
| 431 if self.__skipEntries > 0: | |
| 432 self.__getReflogEntries(self.__skipEntries) |
