PyLintInterface/PyLintExecDialog.py

branch
eric7
changeset 98
ab4aabca55ec
parent 95
50eba81e4a9f
child 101
98784d037491
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PyLintInterface/PyLintExecDialog.py	Wed Jun 02 18:27:07 2021 +0200
@@ -0,0 +1,428 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2005 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to show the results of the PyLint run.
+"""
+
+import os
+
+from PyQt6.QtCore import pyqtSlot, Qt, QTimer, QProcess
+from PyQt6.QtGui import QTextCursor
+from PyQt6.QtWidgets import (
+    QWidget, QHeaderView, QApplication, QDialogButtonBox, QTreeWidgetItem
+)
+
+from EricGui.EricOverrideCursor import EricOverrideCursorProcess
+
+from EricWidgets import EricMessageBox, EricFileDialog
+from EricWidgets.EricApplication import ericApp
+
+from .Ui_PyLintExecDialog import Ui_PyLintExecDialog
+
+import Preferences
+import Utilities
+
+
+class PyLintExecDialog(QWidget, Ui_PyLintExecDialog):
+    """
+    Class implementing a dialog to show the results of the PyLint run.
+    
+    This class starts a QProcess and displays a dialog that
+    shows the results of the PyLint command process.
+    """
+    filenameRole = Qt.ItemDataRole.UserRole + 1
+    
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent parent widget of this dialog
+        @type QWidget
+        """
+        QWidget.__init__(self, parent)
+        self.setupUi(self)
+        
+        self.saveButton = self.buttonBox.addButton(
+            self.tr("Save Report..."), QDialogButtonBox.ButtonRole.ActionRole)
+        self.saveButton.setToolTip(
+            self.tr("Press to save the report to a file"))
+        self.saveButton.setEnabled(False)
+        
+        self.refreshButton = self.buttonBox.addButton(
+            self.tr("Refresh"), QDialogButtonBox.ButtonRole.ActionRole)
+        self.refreshButton.setToolTip(self.tr(
+            "Press to refresh the result display"))
+        self.refreshButton.setEnabled(False)
+        
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setEnabled(False)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setDefault(True)
+        
+        self.messageList.header().setSortIndicator(
+            0, Qt.SortOrder.AscendingOrder)
+        
+        self.process = None
+        self.noResults = True
+        self.htmlOutput = False
+        self.parsedOutput = False
+        self.__scrollPosition = -1  # illegal value
+        
+        self.typeDict = {
+            'C': self.tr('Convention'),
+            'R': self.tr('Refactor'),
+            'W': self.tr('Warning'),
+            'E': self.tr('Error'),
+            'F': self.tr('Fatal'),
+        }
+    
+    def start(self, args, fn, reportFile, ppath):
+        """
+        Public slot to start PyLint.
+        
+        @param args commandline arguments for documentation programPyLint
+        @type list of str
+        @param fn filename or dirname to be processed by PyLint
+        @type str
+        @param reportFile filename of file to write the report to
+        @type str
+        @param ppath project path
+        @type str
+        @return flag indicating the successful start of the process
+        @rtype bool
+        """
+        self.errorGroup.hide()
+        
+        self.args = args[:]
+        self.fn = fn
+        self.reportFile = reportFile
+        self.ppath = ppath
+        
+        self.pathname = os.path.dirname(fn)
+        self.filename = os.path.basename(fn)
+        
+        self.contents.clear()
+        self.errors.clear()
+        self.messageList.clear()
+        
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setEnabled(False)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setEnabled(True)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setDefault(True)
+        self.saveButton.setEnabled(False)
+        self.refreshButton.setEnabled(False)
+        
+        program = args[0]
+        del args[0]
+        args.append(self.filename)
+        
+        self.process = EricOverrideCursorProcess()
+        self.process.setWorkingDirectory(self.pathname)
+        
+        self.process.readyReadStandardError.connect(self.__readStderr)
+        self.process.finished.connect(self.__finish)
+            
+        self.__ioEncoding = Preferences.getSystem("IOEncoding")
+        if "--output-format=parseable" in args:
+            self.reportFile = None
+            self.contents.hide()
+            self.process.readyReadStandardOutput.connect(
+                self.__readParseStdout)
+            self.parsedOutput = True
+        else:
+            self.process.readyReadStandardOutput.connect(self.__readStdout)
+            self.messageList.hide()
+            if "--output-format=html" in args:
+                self.contents.setAcceptRichText(True)
+                self.contents.setHtml('<b>Processing your request...</b>')
+                self.htmlOutput = True
+            else:
+                self.contents.setAcceptRichText(False)
+                self.contents.setCurrentFont(
+                    Preferences.getEditorOtherFonts("MonospacedFont"))
+                self.htmlOutput = False
+            self.parsedOutput = False
+        self.noResults = True
+        
+        self.buf = ""
+        self.__lastFileItem = None
+        
+        self.process.start(program, args)
+        procStarted = self.process.waitForStarted()
+        if not procStarted:
+            EricMessageBox.critical(
+                self,
+                self.tr('Process Generation Error'),
+                self.tr(
+                    'The process {0} could not be started. '
+                    'Ensure, that it is in the search path.'
+                ).format(program))
+        return procStarted
+    
+    def on_buttonBox_clicked(self, button):
+        """
+        Private slot called by a button of the button box clicked.
+        
+        @param button button that was clicked
+        @type QAbstractButton
+        """
+        if button == self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close
+        ):
+            self.close()
+        elif button == self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel
+        ):
+            self.__finish()
+        elif button == self.saveButton:
+            self.on_saveButton_clicked()
+        elif button == self.refreshButton:
+            self.on_refreshButton_clicked()
+    
+    def __finish(self):
+        """
+        Private slot called when the process finished.
+        
+        It is called when the process finished or the user pressed the button.
+        """
+        if self.htmlOutput:
+            self.contents.setHtml(self.buf)
+        else:
+            cursor = self.contents.textCursor()
+            cursor.movePosition(QTextCursor.MoveOperation.Start)
+            self.contents.setTextCursor(cursor)
+        
+        if (
+            self.process is not None and
+            self.process.state() != QProcess.ProcessState.NotRunning
+        ):
+            self.process.terminate()
+            QTimer.singleShot(2000, self.process.kill)
+            self.process.waitForFinished(3000)
+        
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setEnabled(True)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setEnabled(False)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setDefault(True)
+        self.refreshButton.setEnabled(True)
+        if self.parsedOutput:
+            QApplication.processEvents()
+            self.messageList.sortItems(
+                self.messageList.sortColumn(),
+                self.messageList.header().sortIndicatorOrder())
+            self.messageList.header().resizeSections(
+                QHeaderView.ResizeMode.ResizeToContents)
+            self.messageList.header().setStretchLastSection(True)
+        else:
+            if self.__scrollPosition != -1:
+                self.contents.verticalScrollBar().setValue(
+                    self.__scrollPosition)
+        
+        self.process = None
+        
+        if self.reportFile:
+            self.__writeReport()
+        elif not self.parsedOutput:
+            self.saveButton.setEnabled(True)
+        
+        if self.noResults:
+            self.__createItem(
+                self.tr('No PyLint errors found.'), "", "", "")
+    
+    @pyqtSlot()
+    def on_refreshButton_clicked(self):
+        """
+        Private slot to refresh the status display.
+        """
+        self.__scrollPosition = self.contents.verticalScrollBar().value()
+        self.start(self.args, self.fn, self.reportFile, self.ppath)
+    
+    def __readStdout(self):
+        """
+        Private slot to handle the readyReadStandardOutput signal.
+        
+        It reads the output of the process, formats it and inserts it into
+        the contents pane.
+        """
+        self.process.setReadChannel(QProcess.ProcessChannel.StandardOutput)
+        
+        while self.process.canReadLine():
+            s = str(self.process.readLine(), self.__ioEncoding, 'replace')
+            self.buf += s + os.linesep
+            if not self.htmlOutput:
+                self.contents.insertPlainText(s)
+                self.contents.ensureCursorVisible()
+    
+    def __createItem(self, file, line, type_, message):
+        """
+        Private method to create an entry in the message list.
+        
+        @param file filename of file
+        @type str
+        @param line linenumber of message
+        @type int or str
+        @param type_ type of message
+        @type str
+        @param message message text
+        @type str
+        """
+        if self.__lastFileItem is None or self.__lastFileItem.text(0) != file:
+            matchFlags = Qt.MatchFlag.MatchFixedString
+            if not Utilities.isWindowsPlatform():
+                matchFlags |= Qt.MatchFlag.MatchCaseSensitive
+            
+            itmList = self.messageList.findItems(file, matchFlags)
+            if itmList:
+                self.__lastFileItem = itmList[0]
+            else:
+                # It's a new file
+                self.__lastFileItem = QTreeWidgetItem(self.messageList, [file])
+                self.__lastFileItem.setFirstColumnSpanned(True)
+                self.__lastFileItem.setExpanded(True)
+                self.__lastFileItem.setData(0, self.filenameRole, file)
+        
+        itm = QTreeWidgetItem(self.__lastFileItem, [str(line), type_, message])
+        itm.setTextAlignment(0, Qt.AlignmentFlag.AlignRight)
+        itm.setTextAlignment(1, Qt.AlignmentFlag.AlignHCenter)
+        itm.setData(0, self.filenameRole, file)
+    
+    def __readParseStdout(self):
+        """
+        Private slot to handle the readyReadStandardOutput signal for
+        parseable output.
+        
+        It reads the output of the process, formats it and inserts it into
+        the message list pane.
+        """
+        self.process.setReadChannel(QProcess.ProcessChannel.StandardOutput)
+        
+        while self.process.canReadLine():
+            s = str(self.process.readLine(), self.__ioEncoding, 'replace')
+            if s:
+                try:
+                    if Utilities.isWindowsPlatform():
+                        drive, s = os.path.splitdrive(s)
+                        fname, lineno, fullmessage = s.split(':')
+                        fname = drive + fname
+                    else:
+                        fname, lineno, fullmessage = s.split(':')
+                    type_, message = fullmessage.strip().split(']', 1)
+                    type_ = type_.strip()[1:].split(',', 1)[0]
+                    message = message.strip()
+                    if type_ and type_[0] in self.typeDict:
+                        if len(type_) == 1:
+                            self.__createItem(
+                                fname, lineno, self.typeDict[type_], message)
+                        else:
+                            self.__createItem(
+                                fname, lineno, "{0} {1}".format(
+                                    self.typeDict[type_[0]], type_[1:]),
+                                message)
+                        self.noResults = False
+                except ValueError:
+                    continue
+    
+    def __readStderr(self):
+        """
+        Private slot to handle the readyReadStandardError signal.
+        
+        It reads the error output of the process and inserts it into the
+        error pane.
+        """
+        self.process.setReadChannel(QProcess.ProcessChannel.StandardError)
+        
+        while self.process.canReadLine():
+            self.errorGroup.show()
+            s = str(self.process.readLine(), self.__ioEncoding, 'replace')
+            self.errors.insertPlainText(s)
+            self.errors.ensureCursorVisible()
+        
+    def on_messageList_itemActivated(self, itm, column):
+        """
+        Private slot to handle the itemActivated signal of the message list.
+        
+        @param itm The message item that was activated
+        @type QTreeWidgetItem
+        @param column column the item was activated in
+        @type int
+        """
+        if self.noResults:
+            return
+        
+        if itm.parent():
+            fn = os.path.join(self.pathname, itm.data(0, self.filenameRole))
+            lineno = int(itm.text(0))
+            
+            vm = ericApp().getObject("ViewManager")
+            vm.openSourceFile(fn, lineno)
+            editor = vm.getOpenEditor(fn)
+            editor.toggleWarning(
+                lineno, 0, True,
+                "{0} | {1}".format(itm.text(1), itm.text(2)))
+        else:
+            fn = os.path.join(self.pathname, itm.data(0, self.filenameRole))
+            vm = ericApp().getObject("ViewManager")
+            vm.openSourceFile(fn)
+            editor = vm.getOpenEditor(fn)
+            for index in range(itm.childCount()):
+                citm = itm.child(index)
+                lineno = int(citm.text(0))
+                editor.toggleWarning(
+                    lineno, 0, True,
+                    "{0} | {1}".format(citm.text(1), citm.text(2)))
+        
+    def __writeReport(self):
+        """
+        Private slot to write the report to a report file.
+        """
+        self.reportFile = self.reportFile
+        if os.path.exists(self.reportFile):
+            res = EricMessageBox.warning(
+                self,
+                self.tr("PyLint Report"),
+                self.tr(
+                    """<p>The PyLint report file <b>{0}</b> already"""
+                    """ exists.</p>""")
+                .format(self.reportFile),
+                EricMessageBox.Cancel |
+                EricMessageBox.Ignore,
+                EricMessageBox.Cancel)
+            if res == EricMessageBox.Cancel:
+                return
+        
+        try:
+            with open(self.reportFile, 'w') as f:
+                f.write(self.buf)
+        except OSError as why:
+            EricMessageBox.critical(
+                self, self.tr('PyLint Report'),
+                self.tr('<p>The PyLint report file <b>{0}</b> could not'
+                        ' be written.<br>Reason: {1}</p>')
+                .format(self.reportFile, str(why)))
+    
+    @pyqtSlot()
+    def on_saveButton_clicked(self):
+        """
+        Private slot to save the report to a file.
+        """
+        fileFilter = (
+            self.tr("HTML Files (*.html);;All Files (*)")
+            if self.htmlOutput else
+            self.tr("Report Files (*.rpt);;Text Files (*.txt);;All Files (*)")
+        )
+        
+        self.reportFile = EricFileDialog.getSaveFileName(
+            self,
+            self.tr("PyLint Report"),
+            self.ppath,
+            fileFilter,
+            EricFileDialog.DontConfirmOverwrite)
+        if self.reportFile:
+            self.__writeReport()

eric ide

mercurial