eric6/Plugins/VcsPlugins/vcsSubversion/SvnDiffDialog.py

changeset 6942
2602857055c5
parent 6735
31e263d49c04
child 7192
a22eee00b052
diff -r f99d60d6b59b -r 2602857055c5 eric6/Plugins/VcsPlugins/vcsSubversion/SvnDiffDialog.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/Plugins/VcsPlugins/vcsSubversion/SvnDiffDialog.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,472 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2003 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to show the output of the svn diff command
+process.
+"""
+
+from __future__ import unicode_literals
+try:
+    str = unicode
+except NameError:
+    pass
+
+import os
+
+from PyQt5.QtCore import QTimer, QFileInfo, QProcess, pyqtSlot, Qt
+from PyQt5.QtGui import QTextCursor
+from PyQt5.QtWidgets import QWidget, QLineEdit, QDialogButtonBox
+
+from E5Gui.E5Application import e5App
+from E5Gui import E5MessageBox, E5FileDialog
+
+from .Ui_SvnDiffDialog import Ui_SvnDiffDialog
+from .SvnDiffHighlighter import SvnDiffHighlighter
+
+import Utilities
+import Preferences
+from Globals import strToQByteArray
+
+
+class SvnDiffDialog(QWidget, Ui_SvnDiffDialog):
+    """
+    Class implementing a dialog to show the output of the svn diff command
+    process.
+    """
+    def __init__(self, vcs, parent=None):
+        """
+        Constructor
+        
+        @param vcs reference to the vcs object
+        @param parent parent widget (QWidget)
+        """
+        super(SvnDiffDialog, self).__init__(parent)
+        self.setupUi(self)
+        
+        self.refreshButton = self.buttonBox.addButton(
+            self.tr("Refresh"), QDialogButtonBox.ActionRole)
+        self.refreshButton.setToolTip(
+            self.tr("Press to refresh the display"))
+        self.refreshButton.setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        self.searchWidget.attachTextEdit(self.contents)
+        
+        self.process = QProcess()
+        self.vcs = vcs
+        
+        font = Preferences.getEditorOtherFonts("MonospacedFont")
+        self.contents.setFontFamily(font.family())
+        self.contents.setFontPointSize(font.pointSize())
+        
+        self.highlighter = SvnDiffHighlighter(self.contents.document())
+        
+        self.process.finished.connect(self.__procFinished)
+        self.process.readyReadStandardOutput.connect(self.__readStdout)
+        self.process.readyReadStandardError.connect(self.__readStderr)
+        
+    def closeEvent(self, e):
+        """
+        Protected slot implementing a close event handler.
+        
+        @param e close event (QCloseEvent)
+        """
+        if self.process is not None and \
+           self.process.state() != QProcess.NotRunning:
+            self.process.terminate()
+            QTimer.singleShot(2000, self.process.kill)
+            self.process.waitForFinished(3000)
+        
+        e.accept()
+        
+    def __getVersionArg(self, version):
+        """
+        Private method to get a svn revision argument for the given revision.
+        
+        @param version revision (integer or string)
+        @return version argument (string)
+        """
+        if version == "WORKING":
+            return None
+        else:
+            return str(version)
+        
+    def start(self, fn, versions=None, urls=None, summary=False,
+              refreshable=False):
+        """
+        Public slot to start the svn diff command.
+        
+        @param fn filename to be diffed (string)
+        @param versions list of versions to be diffed (list of up to 2 strings
+            or None)
+        @keyparam urls list of repository URLs (list of 2 strings)
+        @keyparam summary flag indicating a summarizing diff
+            (only valid for URL diffs) (boolean)
+        @keyparam refreshable flag indicating a refreshable diff (boolean)
+        """
+        self.refreshButton.setVisible(refreshable)
+        
+        self.errorGroup.hide()
+        self.inputGroup.show()
+        self.inputGroup.setEnabled(True)
+        self.intercept = False
+        self.filename = fn
+        
+        self.process.kill()
+        
+        self.contents.clear()
+        self.highlighter.regenerateRules()
+        self.paras = 0
+        
+        self.filesCombo.clear()
+        
+        self.__oldFile = ""
+        self.__oldFileLine = -1
+        self.__fileSeparators = []
+        
+        args = []
+        args.append('diff')
+        self.vcs.addArguments(args, self.vcs.options['global'])
+        self.vcs.addArguments(args, self.vcs.options['diff'])
+        if '--diff-cmd' in self.vcs.options['diff']:
+            self.buttonBox.button(QDialogButtonBox.Save).hide()
+        
+        if versions is not None:
+            self.raise_()
+            self.activateWindow()
+            
+            rev1 = self.__getVersionArg(versions[0])
+            rev2 = None
+            if len(versions) == 2:
+                rev2 = self.__getVersionArg(versions[1])
+            
+            if rev1 is not None or rev2 is not None:
+                args.append('-r')
+                if rev1 is not None and rev2 is not None:
+                    args.append('{0}:{1}'.format(rev1, rev2))
+                elif rev2 is None:
+                    args.append(rev1)
+                elif rev1 is None:
+                    args.append(rev2)
+        
+        self.summaryPath = None
+        if urls is not None:
+            if summary:
+                args.append("--summarize")
+                self.summaryPath = urls[0]
+            args.append("--old={0}".format(urls[0]))
+            args.append("--new={0}".format(urls[1]))
+            if isinstance(fn, list):
+                dname, fnames = self.vcs.splitPathList(fn)
+            else:
+                dname, fname = self.vcs.splitPath(fn)
+                fnames = [fname]
+            project = e5App().getObject('Project')
+            if dname == project.getProjectPath():
+                path = ""
+            else:
+                path = project.getRelativePath(dname)
+            if path:
+                path += "/"
+            for fname in fnames:
+                args.append(path + fname)
+        else:
+            if isinstance(fn, list):
+                dname, fnames = self.vcs.splitPathList(fn)
+                self.vcs.addArguments(args, fnames)
+            else:
+                dname, fname = self.vcs.splitPath(fn)
+                args.append(fname)
+        
+        self.process.setWorkingDirectory(dname)
+        
+        self.process.start('svn', args)
+        procStarted = self.process.waitForStarted(5000)
+        if not procStarted:
+            self.inputGroup.setEnabled(False)
+            self.inputGroup.hide()
+            E5MessageBox.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('svn'))
+        
+    def __procFinished(self, exitCode, exitStatus):
+        """
+        Private slot connected to the finished signal.
+        
+        @param exitCode exit code of the process (integer)
+        @param exitStatus exit status of the process (QProcess.ExitStatus)
+        """
+        self.inputGroup.setEnabled(False)
+        self.inputGroup.hide()
+        self.refreshButton.setEnabled(True)
+        
+        if self.paras == 0:
+            self.contents.setPlainText(self.tr('There is no difference.'))
+            
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(self.paras > 0)
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        self.buttonBox.button(QDialogButtonBox.Close).setFocus(
+            Qt.OtherFocusReason)
+        
+        tc = self.contents.textCursor()
+        tc.movePosition(QTextCursor.Start)
+        self.contents.setTextCursor(tc)
+        self.contents.ensureCursorVisible()
+        
+        self.filesCombo.addItem(self.tr("<Start>"), 0)
+        self.filesCombo.addItem(self.tr("<End>"), -1)
+        for oldFile, newFile, pos in sorted(self.__fileSeparators):
+            if oldFile != newFile:
+                self.filesCombo.addItem(
+                    "{0}\n{1}".format(oldFile, newFile), pos)
+            else:
+                self.filesCombo.addItem(oldFile, pos)
+        
+    def __appendText(self, txt):
+        """
+        Private method to append text to the end of the contents pane.
+        
+        @param txt text to insert (string)
+        """
+        tc = self.contents.textCursor()
+        tc.movePosition(QTextCursor.End)
+        self.contents.setTextCursor(tc)
+        self.contents.insertPlainText(txt)
+        
+    def __extractFileName(self, line):
+        """
+        Private method to extract the file name out of a file separator line.
+        
+        @param line line to be processed (string)
+        @return extracted file name (string)
+        """
+        f = line.split(None, 1)[1]
+        f = f.rsplit(None, 2)[0]
+        return f
+    
+    def __processFileLine(self, line):
+        """
+        Private slot to process a line giving the old/new file.
+        
+        @param line line to be processed (string)
+        """
+        if line.startswith('---'):
+            self.__oldFileLine = self.paras
+            self.__oldFile = self.__extractFileName(line)
+        else:
+            self.__fileSeparators.append(
+                (self.__oldFile, self.__extractFileName(line),
+                 self.__oldFileLine))
+    
+    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.StandardOutput)
+        
+        while self.process.canReadLine():
+            line = str(self.process.readLine(),
+                       Preferences.getSystem("IOEncoding"),
+                       'replace')
+            if self.summaryPath:
+                line = line.replace(self.summaryPath + '/', '')
+                line = " ".join(line.split())
+            if line.startswith("--- ") or line.startswith("+++ "):
+                self.__processFileLine(line)
+                
+            self.__appendText(line)
+            self.paras += 1
+        
+    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.
+        """
+        if self.process is not None:
+            self.errorGroup.show()
+            s = str(self.process.readAllStandardError(),
+                    Preferences.getSystem("IOEncoding"),
+                    'replace')
+            self.errors.insertPlainText(s)
+            self.errors.ensureCursorVisible()
+        
+    def on_buttonBox_clicked(self, button):
+        """
+        Private slot called by a button of the button box clicked.
+        
+        @param button button that was clicked (QAbstractButton)
+        """
+        if button == self.buttonBox.button(QDialogButtonBox.Save):
+            self.on_saveButton_clicked()
+        elif button == self.refreshButton:
+            self.on_refreshButton_clicked()
+    
+    @pyqtSlot(int)
+    def on_filesCombo_activated(self, index):
+        """
+        Private slot to handle the selection of a file.
+        
+        @param index activated row (integer)
+        """
+        para = self.filesCombo.itemData(index)
+        
+        if para == 0:
+            tc = self.contents.textCursor()
+            tc.movePosition(QTextCursor.Start)
+            self.contents.setTextCursor(tc)
+            self.contents.ensureCursorVisible()
+        elif para == -1:
+            tc = self.contents.textCursor()
+            tc.movePosition(QTextCursor.End)
+            self.contents.setTextCursor(tc)
+            self.contents.ensureCursorVisible()
+        else:
+            # step 1: move cursor to end
+            tc = self.contents.textCursor()
+            tc.movePosition(QTextCursor.End)
+            self.contents.setTextCursor(tc)
+            self.contents.ensureCursorVisible()
+            
+            # step 2: move cursor to desired line
+            tc = self.contents.textCursor()
+            delta = tc.blockNumber() - para
+            tc.movePosition(QTextCursor.PreviousBlock, QTextCursor.MoveAnchor,
+                            delta)
+            self.contents.setTextCursor(tc)
+            self.contents.ensureCursorVisible()
+    
+    @pyqtSlot()
+    def on_saveButton_clicked(self):
+        """
+        Private slot to handle the Save button press.
+        
+        It saves the diff shown in the dialog to a file in the local
+        filesystem.
+        """
+        if isinstance(self.filename, list):
+            if len(self.filename) > 1:
+                fname = self.vcs.splitPathList(self.filename)[0]
+            else:
+                dname, fname = self.vcs.splitPath(self.filename[0])
+                if fname != '.':
+                    fname = "{0}.diff".format(self.filename[0])
+                else:
+                    fname = dname
+        else:
+            fname = self.vcs.splitPath(self.filename)[0]
+        
+        fname, selectedFilter = E5FileDialog.getSaveFileNameAndFilter(
+            self,
+            self.tr("Save Diff"),
+            fname,
+            self.tr("Patch Files (*.diff)"),
+            None,
+            E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite))
+        
+        if not fname:
+            return  # user aborted
+        
+        ext = QFileInfo(fname).suffix()
+        if not ext:
+            ex = selectedFilter.split("(*")[1].split(")")[0]
+            if ex:
+                fname += ex
+        if QFileInfo(fname).exists():
+            res = E5MessageBox.yesNo(
+                self,
+                self.tr("Save Diff"),
+                self.tr("<p>The patch file <b>{0}</b> already exists."
+                        " Overwrite it?</p>").format(fname),
+                icon=E5MessageBox.Warning)
+            if not res:
+                return
+        fname = Utilities.toNativeSeparators(fname)
+        
+        eol = e5App().getObject("Project").getEolString()
+        try:
+            f = open(fname, "w", encoding="utf-8", newline="")
+            f.write(eol.join(self.contents.toPlainText().splitlines()))
+            f.close()
+        except IOError as why:
+            E5MessageBox.critical(
+                self, self.tr('Save Diff'),
+                self.tr(
+                    '<p>The patch file <b>{0}</b> could not be saved.'
+                    '<br>Reason: {1}</p>')
+                .format(fname, str(why)))
+        
+    @pyqtSlot()
+    def on_refreshButton_clicked(self):
+        """
+        Private slot to refresh the display.
+        """
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
+        
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(False)
+        self.refreshButton.setEnabled(False)
+        
+        self.start(self.filename, refreshable=True)
+    
+    def on_passwordCheckBox_toggled(self, isOn):
+        """
+        Private slot to handle the password checkbox toggled.
+        
+        @param isOn flag indicating the status of the check box (boolean)
+        """
+        if isOn:
+            self.input.setEchoMode(QLineEdit.Password)
+        else:
+            self.input.setEchoMode(QLineEdit.Normal)
+        
+    @pyqtSlot()
+    def on_sendButton_clicked(self):
+        """
+        Private slot to send the input to the subversion process.
+        """
+        inputTxt = self.input.text()
+        inputTxt += os.linesep
+        
+        if self.passwordCheckBox.isChecked():
+            self.errors.insertPlainText(os.linesep)
+            self.errors.ensureCursorVisible()
+        else:
+            self.errors.insertPlainText(inputTxt)
+            self.errors.ensureCursorVisible()
+        
+        self.process.write(strToQByteArray(inputTxt))
+        
+        self.passwordCheckBox.setChecked(False)
+        self.input.clear()
+        
+    def on_input_returnPressed(self):
+        """
+        Private slot to handle the press of the return key in the input field.
+        """
+        self.intercept = True
+        self.on_sendButton_clicked()
+        
+    def keyPressEvent(self, evt):
+        """
+        Protected slot to handle a key press event.
+        
+        @param evt the key press event (QKeyEvent)
+        """
+        if self.intercept:
+            self.intercept = False
+            evt.accept()
+            return
+        super(SvnDiffDialog, self).keyPressEvent(evt)

eric ide

mercurial