Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdesdk@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 610 insertions, 0 deletions

diff --git a/kfile-plugins/diff/kfile_diff.cpp b/kfile-plugins/diff/kfile_diff.cpp
new file mode 100644
index 00000000..0f2fa02d
--- /dev/null
+++ b/kfile-plugins/diff/kfile_diff.cpp
@@ -0,0 +1,610 @@
+/**************************************************************************
+**                             kfile_diff.cpp
+**                              -------------------
+**      begin                   : Sun Jan 20 23:25:44 2002
+**      copyright               : (C) 2002-2003 by Otto Bruggeman
+**      email                   : otto.bruggeman@home.nl
+**
+***************************************************************************/
+/***************************************************************************
+**
+**   This program is free software; you can redistribute it and/or modify
+**   it under the terms of the GNU General Public License as published by
+**   the Free Software Foundation; either version 2 of the License, or
+**   (at your option) any later version.
+**
+***************************************************************************/
+
+/*
+** Patch by Volker Augustin for empty diff files. Februari 8, 2002
+**
+** Patched to work with CVS from after February 26, 2002 Otto
+**
+** Patched to work with CVS from after March 24, 2002 Otto
+**
+** Added support for Perforce diffs, April 26, 2003 Otto Bruggeman
+**
+** Added support for Subversion diffs, September 11, 2003 Otto Bruggeman
+*/
+
+#include <qcstring.h>
+#include <qdatetime.h>
+#include <qdict.h>
+#include <qfile.h>
+#include <qregexp.h>
+#include <qvalidator.h>
+
+#include <kdebug.h>
+#include <kgenericfactory.h>
+#include <klocale.h>
+#include <kprocess.h>
+#include <kurl.h>
+
+#include "kfile_diff.h"
+
+K_EXPORT_COMPONENT_FACTORY(kfile_diff, KGenericFactory<KDiffPlugin>("kfile_diff"))
+
+KDiffPlugin::KDiffPlugin(QObject *parent, const char *name,
+                         const QStringList &preferredItems)
+	: KFilePlugin(parent, name, preferredItems)
+{
+	kdDebug(7034) << "diff plugin" << endl;
+
+	KFileMimeTypeInfo* info = addMimeTypeInfo( "text/x-diff" );
+
+	KFileMimeTypeInfo::GroupInfo* group;
+	group = addGroupInfo( info, "General", i18n( "General" ) );
+	addItemInfo( group, "Files", i18n( "Files" ), QVariant::UInt );
+	addItemInfo( group, "First", i18n( "First File" ), QVariant::String );
+	addItemInfo( group, "Format", i18n( "Format" ), QVariant::String );
+	addItemInfo( group, "DiffProgram", i18n( "Diff Program" ), QVariant::String );
+	addItemInfo( group, "Hunks", i18n( "Hunks" ), QVariant::UInt );
+	group = addGroupInfo( info, "Statistics", i18n( "Statistics" ) );
+	addItemInfo( group, "Insert", i18n( "Insertions" ), QVariant::UInt );
+	addItemInfo( group, "Modify", i18n( "Changes" ),    QVariant::UInt );
+	addItemInfo( group, "Delete", i18n( "Deletions" ),  QVariant::UInt );
+}
+
+bool KDiffPlugin::readInfo( KFileMetaInfo& info, uint what )
+{
+	// This is a hack to avoid using the what stuff, since it is not yet implemented
+	what = 0;
+
+	// Used to determine if false or true should be returned
+	bool dataSet = false;
+
+	KFileMetaInfoGroup group;
+
+	QFile file( info.path() );
+	QStringList lines;
+
+	if( file.open( IO_ReadOnly ) )
+	{
+		QTextStream stream( &file );
+		while (!stream.eof())
+		{
+			lines.append( stream.readLine() );
+		}
+		file.close();
+	}
+
+	QString format;
+	QString program;
+
+	enum KDiffPlugin::Format       diffFormat;
+	enum KDiffPlugin::DiffProgram  diffProgram;
+
+	diffFormat  = determineDiffFormat ( lines );
+
+	format = determineI18nedFormat( diffFormat );
+
+	diffProgram = determineDiffProgram( lines );
+
+	program = determineI18nedProgram( diffProgram );
+
+	int numberOfAdditions = 0;
+	int numberOfDeletions = 0;
+	int numberOfChanges = 0;
+	int numberOfHunks = 0;
+	int numberOfFiles = 0;
+
+
+	if ( what != KFileMetaInfo::Fastest )
+	{
+		determineDiffInfo( lines, diffFormat, &numberOfFiles, &numberOfHunks, &numberOfAdditions, &numberOfChanges, &numberOfDeletions );
+	}
+
+	QString filename;
+	QRegExp firstFile( "^Index: (.*)" );
+	QStringList::ConstIterator it = lines.begin();
+
+	it = lines.begin();
+	while ( it != lines.end() )
+	{
+		if ( firstFile.exactMatch( (*it) ) )
+		{
+			filename = firstFile.cap(1);
+			// only interested in the first filename
+			break;
+		}
+		++it;
+	}
+
+	kdDebug(7034) << "Diff Format         : " << format << endl; // i18n-ed but that is not a problem unless i get i18n-ed debug output ah well, we'll figure something out when then happens
+
+	if (what != KFileMetaInfo::Fastest )
+	{
+		// These dont get calculated in fastest mode...
+		kdDebug(7034) << "Number of additions : " << numberOfAdditions << endl;
+		kdDebug(7034) << "Number of deletions : " << numberOfDeletions << endl;
+		kdDebug(7034) << "Number of changes   : " << numberOfChanges << endl;
+		kdDebug(7034) << "Number of hunks     : " << numberOfHunks << endl;
+	}
+
+	group = appendGroup( info, "General" );
+
+	if ( numberOfFiles != 0 && what != KFileMetaInfo::Fastest )
+	{
+		appendItem( group, "Files", numberOfFiles );
+		dataSet = true;
+	}
+
+	if ( !filename.isEmpty() )
+	{
+		appendItem( group, "First", filename );
+		dataSet = true;
+	}
+
+	if ( !format.isEmpty() )
+	{
+		appendItem( group, "Format", format );
+		dataSet = true;
+	}
+
+	if ( !program.isEmpty() )
+	{
+		appendItem( group, "DiffProgram", program );
+		dataSet = true;
+	}
+
+	if ( numberOfHunks != 0 && what != KFileMetaInfo::Fastest )
+	{
+		appendItem( group, "Hunks", numberOfHunks );
+		dataSet = true;
+	}
+
+	group = appendGroup( info, "Statistics" );
+
+	if ( numberOfAdditions != 0 && what != KFileMetaInfo::Fastest )
+	{
+		appendItem( group, "Insert", numberOfAdditions );
+		dataSet = true;
+	}
+
+	if ( numberOfChanges != 0 && what != KFileMetaInfo::Fastest )
+	{
+		appendItem( group, "Modify", numberOfChanges );
+		dataSet = true;
+	}
+
+	if ( numberOfDeletions != 0 && what != KFileMetaInfo::Fastest )
+	{
+		appendItem( group, "Delete", numberOfDeletions );
+		dataSet = true;
+	}
+
+	return dataSet;
+}
+
+enum KDiffPlugin::Format KDiffPlugin::determineDiffFormat( const QStringList lines ) const
+{
+	QString line;
+
+	if ( lines.count() == 0 )
+	{
+		return KDiffPlugin::Empty;
+	}
+
+	QStringList::ConstIterator it = lines.begin();
+
+	while ( it != lines.end() )
+	{
+		line = (*it);
+		if ( line.find( QRegExp( "^[0-9]+[0-9,]*[acd][0-9]+[0-9,]*$" ), 0 ) == 0 )
+		{
+			return KDiffPlugin::Normal;
+		}
+		else if ( line.find( QRegExp( "^--- " ), 0 ) == 0 )
+		{
+			// unified has first a '^--- ' line, then a '^+++ ' line
+			return KDiffPlugin::Unified;
+		}
+		else if ( line.find( QRegExp( "^\\*\\*\\* [^\\t]+\\t" ), 0 ) == 0 )
+		{
+			// context has first a '^*** ' line, then a '^--- ' line
+			return KDiffPlugin::Context;
+		}
+		else if ( line.find( QRegExp( "^[acd][0-9]+ [0-9]+" ), 0 ) == 0 )
+		{
+			return KDiffPlugin::RCS;
+		}
+		else if ( line.find( QRegExp( "^[0-9]+[0-9,]*[acd]" ), 0 ) == 0 )
+		{
+			return KDiffPlugin::Ed;
+		}
+		++it;
+	}
+	return KDiffPlugin::Unknown;
+}
+
+enum KDiffPlugin::DiffProgram KDiffPlugin::determineDiffProgram( const QStringList lines ) const
+{
+	if ( lines.count() == 0 )
+	{
+		return KDiffPlugin::Undeterminable;
+	}
+
+	QStringList::ConstIterator it = lines.begin();
+	// very crude, might need some more refining
+	QRegExp diffRE( "^diff .*" );
+	QRegExp p4sRE("^==== ");
+
+	bool indexFound = false;
+
+	while ( it != lines.end() )
+	{
+		if ( (*it).startsWith( "Index:" ) )
+			indexFound = true;
+		else if ( (*it).startsWith( "retrieving revision") )
+			return KDiffPlugin::CVSDiff;
+		else if ( diffRE.exactMatch( *it ) )
+			return KDiffPlugin::Diff;
+		else if ( p4sRE.exactMatch( *it ) )
+			return KDiffPlugin::Perforce;
+
+		++it;
+	}
+
+	if ( indexFound ) // but no "retrieving revision" found like only cvs diff adds.
+		return KDiffPlugin::SubVersion;
+
+	return KDiffPlugin::Undeterminable;
+}
+
+const QString KDiffPlugin::determineI18nedFormat( enum KDiffPlugin::Format diffFormat ) const
+{
+	QString format;
+	switch( diffFormat )
+	{
+	case KDiffPlugin::Context:
+		format = i18n( "Context" );
+		break;
+	case KDiffPlugin::Ed:
+		format = i18n( "Ed" );
+		break;
+	case KDiffPlugin::Normal:
+		format = i18n( "Normal" );
+		break;
+	case KDiffPlugin::RCS:
+		format = i18n( "RCS" );
+		break;
+	case KDiffPlugin::Unified:
+		format = i18n( "Unified" );
+		break;
+	case KDiffPlugin::Empty:
+		format = i18n( "Not Available (file empty)" );
+		break;
+	case KDiffPlugin::Unknown:
+		format = i18n( "Unknown" );
+		break;
+	case KDiffPlugin::SideBySide:
+		format = i18n( "Side by Side" );
+	}
+	return format;
+}
+
+const QString KDiffPlugin::determineI18nedProgram( enum KDiffPlugin::DiffProgram diffProgram ) const
+{
+	QString program;
+
+	switch( diffProgram )
+	{
+	case KDiffPlugin::CVSDiff:
+		program = i18n( "CVSDiff" );
+		break;
+	case KDiffPlugin::Diff:
+		program = i18n( "Diff" );
+		break;
+	case KDiffPlugin::Diff3:
+		program = i18n( "Diff3" );
+		break;
+	case KDiffPlugin::Perforce:
+		program = i18n( "Perforce" );
+		break;
+	case KDiffPlugin::SubVersion:
+		program = i18n( "SubVersion" );
+		break;
+	case KDiffPlugin::Undeterminable:
+		program = i18n( "Unknown" );
+		break;
+	}
+	return program;
+}
+
+void KDiffPlugin::determineDiffInfo( const QStringList lines,
+                                     enum KDiffPlugin::Format diffFormat,
+                                     int* numberOfFiles,
+                                     int* numberOfHunks,
+                                     int* numberOfAdditions,
+                                     int* numberOfChanges,
+                                     int* numberOfDeletions )
+{
+	QString line;
+
+	QRegExp edAdd( "([0-9]+)(|,([0-9]+))a" );
+	QRegExp edDel( "([0-9]+)(|,([0-9]+))d" );
+	QRegExp edMod( "([0-9]+)(|,([0-9]+))c" );
+
+	QRegExp normalAdd( "[0-9]+a([0-9]+)(|,([0-9]+))" );
+	QRegExp normalDel( "([0-9]+)(|,([0-9]+))d(|[0-9]+)" );
+	QRegExp normalMod( "([0-9]+)(|,([0-9]+))c([0-9]+)(|,([0-9]+))" );
+
+	QRegExp rcsAdd( "a[0-9]+ ([0-9]+)" );
+	QRegExp rcsDel( "d[0-9]+ ([0-9]+)" );
+
+	QStringList::ConstIterator it = lines.begin();
+
+	switch( diffFormat )
+	{
+	case KDiffPlugin::Context:
+		while ( it != lines.end() )
+		{
+			if ( (*it).startsWith("***************") )
+			{
+				(*numberOfHunks)++;
+//				kdDebug(7034) << "Context Hunk      : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("***") )
+			{
+				(*numberOfFiles)++;
+//				kdDebug(7034) << "Context File      : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("---") ) {} // ignore
+			else if ( (*it).startsWith("+") )
+			{
+				(*numberOfAdditions)++;
+//				kdDebug(7034) << "Context Insertion : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("-") )
+			{
+				(*numberOfDeletions)++;
+//				kdDebug(7034) << "Context Deletion  : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("!") )
+			{
+				(*numberOfChanges)++;
+//				kdDebug(7034) << "Context Modified  : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith(" ") )
+			{
+//				kdDebug(7034) << "Context Context   : " << (*it) << endl;
+			}
+			else
+			{
+//				kdDebug(7034) << "Context Unknown   : " << (*it) << endl;
+			}
+
+			++it;
+		}
+		(*numberOfChanges) /= 2; // changes are in both parts of the hunks
+		(*numberOfFiles) -= (*numberOfHunks); // it counts old parts of a hunk as files :(
+		break;
+	case KDiffPlugin::Ed:
+		while ( it != lines.end() )
+		{
+			if ( (*it).startsWith( "diff" ) )
+			{
+				(*numberOfFiles)++;
+//				kdDebug(7034) << "Ed File         : " << (*it) << endl;
+			}
+			else if ( edAdd.exactMatch( (*it) ) )
+			{
+//				kdDebug(7034) << "Ed Insertion    : " << (*it) << endl;
+				(*numberOfHunks)++;
+				++it;
+				while( it != lines.end() && !(*it).startsWith(".") )
+				{
+					(*numberOfAdditions)++;
+//					kdDebug(7034) << "Ed Insertion    : " << (*it) << endl;
+					++it;
+				}
+			}
+			else if ( edDel.exactMatch( (*it) ) )
+			{
+//				kdDebug(7034) << "Ed Deletion     : " << (*it) << endl;
+				(*numberOfHunks)++;
+				(*numberOfDeletions) += (edDel.cap(3).isEmpty() ? 1 : edDel.cap(3).toInt() - edDel.cap(1).toInt() + 1);
+//				kdDebug(7034) << "Ed noOfLines    : " << (edDel.cap(3).isEmpty() ? 1 : edDel.cap(3).toInt() - edDel.cap(1).toInt() + 1) << endl;
+			}
+			else if ( edMod.exactMatch( (*it) ) )
+			{
+//				kdDebug(7034) << "Ed Modification : " << (*it) << endl;
+				if ( edMod.cap(3).isEmpty() )
+					(*numberOfDeletions)++;
+				else
+					(*numberOfDeletions) += edMod.cap(3).toInt() - edMod.cap(1).toInt() + 1;
+				(*numberOfHunks)++;
+				++it;
+				while( it != lines.end() && !(*it).startsWith(".") )
+				{
+					(*numberOfAdditions)++;
+//					kdDebug(7034) << "Ed Modification : " << (*it) << endl;
+					++it;
+				}
+			}
+			else
+			{
+//				kdDebug(7034) << "Ed Unknown      : " << (*it) << endl;
+			}
+
+			++it;
+		}
+		break;
+	case KDiffPlugin::Normal:
+		while ( it != lines.end() )
+		{
+			if ( (*it).startsWith( "diff" ) )
+			{
+				(*numberOfFiles)++;
+//				kdDebug(7034) << "Normal File         : " << (*it) << endl;
+			}
+			else if ( normalAdd.exactMatch( *it ) )
+			{
+//				kdDebug(7034) << "Normal Insertion    : " << (*it) << endl;
+				(*numberOfHunks)++;
+				if ( normalAdd.cap(3).isEmpty() )
+				{
+					(*numberOfAdditions)++;
+//					kdDebug(7034) << "Normal Addition : " << 1 << endl;
+				}
+				else
+				{
+					(*numberOfAdditions) += normalAdd.cap(3).toInt() - normalAdd.cap(1).toInt() + 1;
+//					kdDebug(7034) << "Normal Addition : " << normalAdd.cap(3).toInt() - normalAdd.cap(1).toInt() + 1 << endl;
+				}
+			}
+			else if ( normalDel.exactMatch( *it ) )
+			{
+//				kdDebug(7034) << "Normal Deletion     : " << (*it) << endl;
+				(*numberOfHunks)++;
+				if ( normalDel.cap(3).isEmpty() )
+				{
+					(*numberOfDeletions)++;
+//					kdDebug(7034) << "Normal Deletion : " << 1 << endl;
+				}
+				else
+				{
+					(*numberOfDeletions) += normalDel.cap(3).toInt() - normalDel.cap(1).toInt() + 1;
+//					kdDebug(7034) << "Normal Deletion : " << normalDel.cap(3).toInt() - normalDel.cap(1).toInt() + 1 << endl;
+				}
+			}
+			else if ( normalMod.exactMatch( *it ) )
+			{
+//				kdDebug(7034) << "Normal Modification : " << (*it) << endl;
+				(*numberOfHunks)++;
+				if ( normalMod.cap(3).isEmpty() )
+				{
+					(*numberOfDeletions)++;
+//					kdDebug(7034) << "Normal Deletion : " << 1 << endl;
+				}
+				else
+				{
+					(*numberOfDeletions) += normalMod.cap(3).toInt() - normalMod.cap(1).toInt() + 1;
+//					kdDebug(7034) << "Normal Deletion : " << normalMod.cap(3).toInt() - normalMod.cap(1).toInt() + 1 << endl;
+				}
+				if ( normalMod.cap(6).isEmpty() )
+				{
+					(*numberOfAdditions)++;
+//					kdDebug(7034) << "Normal Addition : " << 1 << endl;
+				}
+				else
+				{
+					(*numberOfAdditions) += normalMod.cap(6).toInt() - normalMod.cap(4).toInt() + 1;
+//					kdDebug(7034) << "Normal Addition : " << normalMod.cap(6).toInt() - normalMod.cap(4).toInt() + 1 << endl;
+				}
+			}
+			else if ( (*it).startsWith(">") )
+			{
+//				numberOfAdditions++;
+//				kdDebug(7034) << "Normal Insertion    : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("<") )
+			{
+//				numberOfDeletions++;
+//				kdDebug(7034) << "Normal Deletion     : " << (*it) << endl;
+			}
+			else
+			{
+//				kdDebug(7034) << "Normal Unknown      : " << (*it) << endl;
+			}
+
+			++it;
+		}
+		break;
+	case KDiffPlugin::RCS:
+		while ( it != lines.end() )
+		{
+			if ( (*it).startsWith( "diff" ) ) // works for cvs diff, have to test for normal diff
+			{
+//				kdDebug(7034) << "RCS File      : " << (*it) << endl;
+				(*numberOfFiles)++;
+			}
+			else if ( rcsAdd.exactMatch( *it ) )
+			{
+//				kdDebug(7034) << "RCS Insertion : " << (*it) << endl;
+				(*numberOfHunks)++;
+				(*numberOfAdditions) += rcsAdd.cap(1).toInt();
+//				kdDebug(7034) << "RCS noOfLines : " << rcsAdd.cap(1).toInt() << endl;
+			}
+			else if ( rcsDel.exactMatch( *it ) )
+			{
+//				kdDebug(7034) << "RCS Deletion  : " << (*it) << endl;
+				(*numberOfHunks)++;
+				(*numberOfDeletions) += rcsDel.cap(1).toInt();
+//				kdDebug(7034) << "RCS noOfLines : " << rcsDel.cap(1).toInt() << endl;
+			}
+			else
+			{
+//				kdDebug(7034) << "RCS Unknown   : " << (*it) << endl;
+			}
+
+			++it;
+		}
+		break;
+	case KDiffPlugin::Unified:
+		while ( it != lines.end() )
+		{
+			if ( (*it).startsWith("@@ ") )
+			{
+				(*numberOfHunks)++;
+//				kdDebug(7034) << "Unified Hunk      : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("---") )
+			{
+				(*numberOfFiles)++;
+//				kdDebug(7034) << "Unified File      : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("+++") ) {} // ignore (dont count as insertion)
+			else if ( (*it).startsWith("+") )
+			{
+				(*numberOfAdditions)++;
+//				kdDebug(7034) << "Unified Insertion : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith("-") )
+			{
+				(*numberOfDeletions)++;
+//				kdDebug(7034) << "Unified Deletion  : " << (*it) << endl;
+			}
+			else if ( (*it).startsWith(" ") )
+			{
+//				kdDebug(7034) << "Unified Context   : " << (*it) << endl;
+			}
+			else
+			{
+//				kdDebug(7034) << "Unified Unknown   : " << (*it) << endl;
+			}
+
+			++it;
+		}
+		break;
+	case KDiffPlugin::Empty:
+	case KDiffPlugin::Unknown:
+	case KDiffPlugin::SideBySide:
+		break;
+	}
+}
+
+#include "kfile_diff.moc"
+
+/* vim: set ts=4 sw=4 noet: */
+