Plugins/VcsPlugins/vcsPySvn/SvnDiffDialog.py

changeset 0
de9c2efb9d02
child 12
1d8dd9706f46
diff -r 000000000000 -r de9c2efb9d02 Plugins/VcsPlugins/vcsPySvn/SvnDiffDialog.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/VcsPlugins/vcsPySvn/SvnDiffDialog.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,365 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2003 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to show the output of the svn diff command process.
+"""
+
+import os
+import sys
+import types
+
+import pysvn
+
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+
+from E4Gui.E4Application import e4App
+
+from SvnDialogMixin import SvnDialogMixin
+from Ui_SvnDiffDialog import Ui_SvnDiffDialog
+
+import Utilities
+
+class SvnDiffDialog(QWidget, SvnDialogMixin, Ui_SvnDiffDialog):
+    """
+    Class implementing a dialog to show the output of the svn diff command.
+    """
+    def __init__(self, vcs, parent = None):
+        """
+        Constructor
+        
+        @param vcs reference to the vcs object
+        @param parent parent widget (QWidget)
+        """
+        QWidget.__init__(self, parent)
+        self.setupUi(self)
+        SvnDialogMixin.__init__(self)
+        
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
+        
+        self.vcs = vcs
+        
+        if Utilities.isWindowsPlatform():
+            self.contents.setFontFamily("Lucida Console")
+        else:
+            self.contents.setFontFamily("Monospace")
+        
+        self.cNormalFormat = self.contents.currentCharFormat()
+        self.cAddedFormat = self.contents.currentCharFormat()
+        self.cAddedFormat.setBackground(QBrush(QColor(190, 237, 190)))
+        self.cRemovedFormat = self.contents.currentCharFormat()
+        self.cRemovedFormat.setBackground(QBrush(QColor(237, 190, 190)))
+        self.cLineNoFormat = self.contents.currentCharFormat()
+        self.cLineNoFormat.setBackground(QBrush(QColor(255, 220, 168)))
+        
+        self.client = self.vcs.getClient()
+        self.client.callback_cancel = \
+            self._clientCancelCallback
+        self.client.callback_get_login = \
+            self._clientLoginCallback
+        self.client.callback_ssl_server_trust_prompt = \
+            self._clientSslServerTrustPromptCallback
+        
+    def __getVersionArg(self, version):
+        """
+        Private method to get a pysvn revision object for the given version number.
+        
+        @param version revision (integer or string)
+        @return revision object (pysvn.Revision)
+        """
+        if type(version) == type(1) or type(version) == type(1L):
+            return pysvn.Revision(pysvn.opt_revision_kind.number, version)
+        elif version.startswith("{"):
+            dateStr = version[1:-1]
+            secs = QDateTime.fromString(dateStr, Qt.ISODate).toTime_t()
+            return pysvn.Revision(pysvn.opt_revision_kind.date, secs)
+        elif version == "HEAD":
+            return pysvn.Revision(pysvn.opt_revision_kind.head)
+        elif version == "COMMITTED":
+            return pysvn.Revision(pysvn.opt_revision_kind.committed)
+        elif version == "BASE":
+            return pysvn.Revision(pysvn.opt_revision_kind.base)
+        elif version == "WORKING":
+            return pysvn.Revision(pysvn.opt_revision_kind.working)
+        elif version == "PREV":
+            return pysvn.Revision(pysvn.opt_revision_kind.previous)
+        else:
+            return pysvn.Revision(pysvn.opt_revision_kind.unspecified)
+        
+    def __getDiffSummaryKind(self, summaryKind):
+        """
+        Private method to get a string descripion of the diff summary.
+        
+        @param summaryKind (pysvn.diff_summarize.summarize_kind)
+        @return one letter string indicating the change type (string)
+        """
+        if summaryKind == pysvn.diff_summarize_kind.delete:
+            return "D"
+        elif summaryKind == pysvn.diff_summarize_kind.modified:
+            return "M"
+        elif summaryKind == pysvn.diff_summarize_kind.added:
+            return "A"
+        elif summaryKind == pysvn.diff_summarize_kind.normal:
+            return "N"
+        else:
+            return " "
+        
+    def start(self, fn, versions = None, urls = None, summary = False, pegRev = None):
+        """
+        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 integer 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 pegRev revision number the filename is valid (integer)
+        """
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
+        
+        self._reset()
+        self.errorGroup.hide()
+        
+        QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
+        QApplication.processEvents()
+        self.filename = fn
+        
+        self.contents.clear()
+        self.paras = 0
+        
+        if Utilities.hasEnvironmentEntry('TEMP'):
+            tmpdir = Utilities.getEnvironmentEntry('TEMP')
+        elif Utilities.hasEnvironmentEntry('TMPDIR'):
+            tmpdir = Utilities.getEnvironmentEntry('TMPDIR')
+        elif Utilities.hasEnvironmentEntry('TMP'):
+            tmpdir = Utilities.getEnvironmentEntry('TMP')
+        elif os.path.exists('/var/tmp'):
+            tmpdir = '/var/tmp'
+        elif os.path.exists('/usr/tmp'):
+            tmpdir = '/usr/tmp'
+        elif os.path.exists('/tmp'):
+            tmpdir = '/tmp'
+        else:
+            QMessageBox.critical(self,
+                self.trUtf8("Subversion Diff"),
+                self.trUtf8("""There is no temporary directory available."""))
+            return
+        
+        tmpdir = os.path.join(tmpdir, 'svn_tmp')
+        if not os.path.exists(tmpdir):
+            os.mkdir(tmpdir)
+        
+        opts = self.vcs.options['global'] + self.vcs.options['diff']
+        recurse = "--non-recursive" not in opts
+        
+        if versions is not None:
+            self.raise_()
+            self.activateWindow()
+            rev1 = self.__getVersionArg(versions[0])
+            if len(versions) == 1:
+                rev2 = self.__getVersionArg("WORKING")
+            else:
+                rev2 = self.__getVersionArg(versions[1])
+        else:
+            rev1 = self.__getVersionArg("BASE")
+            rev2 = self.__getVersionArg("WORKING")
+        
+        if urls is not None:
+            rev1 = self.__getVersionArg("HEAD")
+            rev2 = self.__getVersionArg("HEAD")
+        
+        if type(fn) is types.ListType:
+            dname, fnames = self.vcs.splitPathList(fn)
+        else:
+            dname, fname = self.vcs.splitPath(fn)
+            fnames = [fname]
+        
+        locker = QMutexLocker(self.vcs.vcsExecutionMutex)
+        cwd = os.getcwd()
+        os.chdir(dname)
+        try:
+            ppath = e4App().getObject('Project').getProjectPath()
+            dname = dname.replace(ppath, '')
+            if dname:
+                dname += "/"
+            for name in fnames:
+                self.__showError(self.trUtf8("Processing file '{0}'...\n").format(name))
+                if urls is not None:
+                    url1 = "%s/%s%s" % (urls[0], dname, name)
+                    url2 = "%s/%s%s" % (urls[1], dname, name)
+                    if summary:
+                        diff_summary = self.client.diff_summarize(\
+                            url1, revision1 = rev1, 
+                            url_or_path2 = url2, revision2 = rev2, 
+                            recurse = recurse)
+                        diff_list = []
+                        for diff_sum in diff_summary:
+                            diff_list.append("%s %s" % \
+                                (self.__getDiffSummaryKind(diff_sum['summarize_kind']),
+                                 diff_sum['path']))
+                        diffText = os.linesep.join(diff_list)
+                    else:
+                        diffText = self.client.diff(tmpdir, 
+                            url1, revision1 = rev1, 
+                            url_or_path2 = url2, revision2 = rev2, 
+                            recurse = recurse)
+                else:
+                    if pegRev is not None:
+                        diffText = self.client.diff_peg(tmpdir, name, 
+                            peg_revision = self.__getVersionArg(pegRev), 
+                            revision_start = rev1, revision_end = rev2, recurse = recurse)
+                    else:
+                        diffText = self.client.diff(tmpdir, name, 
+                            revision1 = rev1, revision2 = rev2, recurse = recurse)
+                counter = 0
+                for line in diffText.splitlines():
+                    self.__appendText("%s%s" % (line, os.linesep))
+                    counter += 1
+                    if counter == 30:
+                        # check for cancel every 30 lines
+                        counter = 0
+                        if self._clientCancelCallback():
+                            break
+                if self._clientCancelCallback():
+                    break
+        except pysvn.ClientError, e:
+            self.__showError(e.args[0])
+        locker.unlock()
+        os.chdir(cwd)
+        self.__finish()
+        
+        if self.paras == 0:
+            self.contents.insertPlainText(\
+                self.trUtf8('There is no difference.'))
+            return
+        
+        self.buttonBox.button(QDialogButtonBox.Save).setEnabled(True)
+        
+    def __appendText(self, line):
+        """
+        Private method to append text to the end of the contents pane.
+        
+        @param line line of text to insert (string)
+        """
+        if line.startswith('+') or line.startswith('>') or line.startswith('A '):
+            format = self.cAddedFormat
+        elif line.startswith('-') or line.startswith('<') or line.startswith('D '):
+            format = self.cRemovedFormat
+        elif line.startswith('@@'):
+            format = self.cLineNoFormat
+        else:
+            format = self.cNormalFormat
+        
+        tc = self.contents.textCursor()
+        tc.movePosition(QTextCursor.End)
+        self.contents.setTextCursor(tc)
+        self.contents.setCurrentCharFormat(format)
+        self.contents.insertPlainText(line)
+        self.paras += 1
+        
+    def __finish(self):
+        """
+        Private slot called when the user pressed the button.
+        """
+        QApplication.restoreOverrideCursor()
+        
+        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        tc = self.contents.textCursor()
+        tc.movePosition(QTextCursor.Start)
+        self.contents.setTextCursor(tc)
+        self.contents.ensureCursorVisible()
+        
+        self._cancel()
+        
+    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.Close):
+            self.close()
+        elif button == self.buttonBox.button(QDialogButtonBox.Cancel):
+            self.__finish()
+        elif button == self.buttonBox.button(QDialogButtonBox.Save):
+            self.on_saveButton_clicked()
+        
+    @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 type(self.filename) is types.ListType:
+            if len(self.filename) > 1:
+                fname = self.vcs.splitPathList(self.filename)[0]
+            else:
+                dname, fname = self.vcs.splitPath(self.filename[0])
+                if fname != '.':
+                    fname = "%s.diff" % self.filename[0]
+                else:
+                    fname = dname
+        else:
+            fname = self.vcs.splitPath(self.filename)[0]
+        
+        fname, selectedFilter = QFileDialog.getSaveFileNameAndFilter(\
+            self,
+            self.trUtf8("Save Diff"),
+            fname,
+            self.trUtf8("Patch Files (*.diff)"),
+            None,
+            QFileDialog.Options(QFileDialog.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 = QMessageBox.warning(self,
+                self.trUtf8("Save Diff"),
+                self.trUtf8("<p>The patch file <b>{0}</b> already exists.</p>")
+                    .format(fname),
+                QMessageBox.StandardButtons(\
+                    QMessageBox.Abort | \
+                    QMessageBox.Save),
+                QMessageBox.Abort)
+            if res != QMessageBox.Save:
+                return
+        fname = Utilities.toNativeSeparators(fname)
+        
+        try:
+            f = open(fname, "wb")
+            f.write(self.contents.toPlainText())
+            f.close()
+        except IOError, why:
+            QMessageBox.critical(self, self.trUtf8('Save Diff'),
+                self.trUtf8('<p>The patch file <b>{0}</b> could not be saved.'
+                    '<br>Reason: {1}</p>')
+                    .format(fname, unicode(why)))
+        
+    def __showError(self, msg):
+        """
+        Private slot to show an error message.
+        
+        @param msg error message to show (string)
+        """
+        self.errorGroup.show()
+        self.errors.insertPlainText(msg)
+        self.errors.ensureCursorVisible()

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