kfile: reimplement it

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-03-08 21:26:15 +02:00
parent 4b3759716c
commit f9c449dcd1
5 changed files with 101 additions and 370 deletions

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@ -1,7 +1,9 @@
set(kfile_SRCS fileprops.cpp )
set(kfile_SRCS kfile.cpp)
add_executable(kfile4 ${kfile_SRCS})
target_link_libraries(kfile4 ${KDE4_KIO_LIBS} )
target_link_libraries(kfile4 ${KDE4_KIO_LIBS})
install(TARGETS kfile4 ${INSTALL_TARGETS_DEFAULT_ARGS} )
install(
TARGETS kfile4 ${INSTALL_TARGETS_DEFAULT_ARGS}
)

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@ -1,4 +1,4 @@
This is a commandline frontend to KFileMetaInfo. It allows
to read and write meta information of files.
This is a commandline frontend to KFileMetaInfo. It allows to read meta
information of URL(s).
Carsten Pfeiffer <pfeiffer@kde.org>
Ivailo Monev <xakepa10@gmail.com>

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@ -1,307 +0,0 @@
/* This file is part of the KDE libraries
Copyright (C) 2002,2003 Carsten Pfeiffer <pfeiffer@kde.org>
library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation, version 2.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "fileprops.h"
#include <iostream>
#include <QtCore/QFile>
#include <kaboutdata.h>
#include <kapplication.h>
#include <kcmdlineargs.h>
#include <kfilemetainfo.h>
#include <klocale.h>
#include <kpropertiesdialog.h>
#include <kdebug.h>
#define KFILEVERSION "0.2"
#define INDENT "\t"
using namespace std;
static QString beatifyValue( const QString& value )
{
if ( value.isNull() )
return QString("(no value for key available)");
else if ( value.isEmpty() )
return QString("(empty)");
return value;
}
FileProps::FileProps( const QString& path )
: m_dirty( false )
{
m_info = new KFileMetaInfo(path, KFileMetaInfo::Everything);
}
FileProps::~FileProps()
{
sync();
delete m_info;
}
bool FileProps::sync()
{
if ( !m_dirty )
return true;
return m_info->applyChanges();
}
bool FileProps::isValid() const
{
return m_info->isValid();
}
QStringList FileProps::supportedKeys() const
{
return QStringList();
}
QStringList FileProps::availableKeys() const
{
return m_info->keys();
}
QString FileProps::getValue( const QString& key ) const
{
return FileProps::createKeyValue( m_info->item(key) );
}
bool FileProps::setValue( const QString& key, const QString &value )
{
bool ok = m_info->item(key).setValue( value );
m_dirty |= ok;
return ok;
}
QStringList FileProps::allValues() const
{
return FileProps::createKeyValueList( m_info->items().values() );
}
// static helper:
// creates strings like
// "group: translatedKey: value"
QString FileProps::createKeyValue( const KFileMetaInfoItem& item )
{
static const int MAX_SPACE = 25;
QString result("%1");
result = result.arg(item.name() + ':', -MAX_SPACE );
result.append( beatifyValue( item.value().toString() ) );
return result;
}
// static
QStringList FileProps::createKeyValueList( const KFileMetaInfoItemList& items )
{
QStringList result;
KFileMetaInfoItemList::ConstIterator it = items.begin();
for ( ; it != items.end(); ++it )
result.append( FileProps::createKeyValue( *it ) );
return result;
}
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
// kfile --mimetype --listsupported --listavailable --listwritable --getValue "key" --setValue "key=value" --allValues --dialog --quiet file [file...]
// "key" may be a list of keys, separated by commas
//
// helper functions
//
// Caller needs to delete the items in the list after use!
static KFileItemList fileItemList( const KCmdLineArgs *args )
{
KFileItemList items;
for ( int i = 0; i < args->count(); i++ )
items.append( KFileItem( KFileItem::Unknown,
KFileItem::Unknown,
args->url( i ) ));
return items;
}
static void showPropertiesDialog( const KCmdLineArgs *args ) {
const KFileItemList items = fileItemList( args );
KPropertiesDialog::showDialog( items, 0, true );
}
/*
static void printMimeTypes( const KCmdLineArgs *args )
{
for ( int i = 0; i < args->count(); i++ )
{
KUrl url = args->url( i );
KMimeType::Ptr mt = KMimeType::findByUrl( url );
kDebug() << args->arg(i) << ": " << mt->comment().toLocal8Bit() << " ("
<< mt->name().toLocal8Bit() << ")" << endl;
}
}*/
static void printList( const QStringList& list )
{
QStringList::ConstIterator it = list.begin();
for ( ; it != list.end(); ++it )
kDebug() << (*it).toLocal8Bit();
kDebug();
}
static void processMetaDataOptions( const QList<FileProps *> propList,
KCmdLineArgs *args )
{
// kfile --mimetype --listsupported --listavailable --listwritable --getValue "key" --setValue "key=value" --allValues --dialog --quiet file [file...]
// "key" may be a list of keys, separated by commas
QString line("-- -------------------------------------------------------");
foreach ( FileProps *props, propList )
{
QString file = props->fileName() + ' ';
QString fileString = line;
fileString.replace( 3, file.length(), file );
kDebug() << QFile::encodeName( fileString );
if ( args->isSet( "listsupported" ) )
{
kDebug() << "=Supported Keys=";
printList( props->supportedKeys() );
}
if ( args->isSet( "listavailable" ) )
{
kDebug() << "=Available Keys=";
printList( props->availableKeys() );
}
// if ( args->isSet( "listwritable" ) )
// {
// kDebug() << "TODO :)";
// }
if ( args->isSet( "getValue" ) )
{
kDebug() << "=Value=";
QString key = args->getOption("getValue");
kDebug() << props->getValue( key ).toLocal8Bit();
}
if ( args->isSet( "setValue" ) )
{
// separate key and value from the line "key=value"
QString cmd = args->getOption("setValue");
QString key = cmd.section( '=', 0, 0 );
QString value = cmd.section( '=', 1 );
props->setValue(key, value);
}
if ( args->isSet( "allValues" ) )
{
kDebug() << "=All Values=";
printList( props->allValues() );
}
}
}
int main( int argc, char **argv )
{
KAboutData about(
"kfile", 0, ki18n( "kfile" ), KFILEVERSION,
ki18n("A command-line tool to read and modify metadata of files."),
KAboutData::License_LGPL, ki18n("(c) 2002, Carsten Pfeiffer"),
ki18n(0 /*text*/), "http://devel-home.kde.org/~pfeiffer/",
"pfeiffer@kde.org" );
about.addAuthor( ki18n("Carsten Pfeiffer"), KLocalizedString(), "pfeiffer@kde.org",
"http://devel-home.kde.org/~pfeiffer/" );
KCmdLineArgs::init( argc, argv, &about );
KCmdLineOptions options;
options.add("m"); // short option for --mimetype
options.add("nomimetype", ki18n("Do not print the mimetype of the given file(s)"));
options.add("ls"); // short option for --listsupported
options.add("listsupported", ki18n("List all supported metadata keys." ));
options.add("la"); // short option for --listavailable
options.add("listavailable", ki18n("List all metadata keys which have a value in the given "
"file(s)."));
options.add("q"); // short option for --quiet
options.add("quiet", ki18n("Do not print a warning when more than one file was given "
"and they do not all have the same mimetype."));
options.add("av"); // short option for --allValues
options.add("allValues", ki18n("Prints all metadata values, available in the given "
"file(s)."));
options.add("dialog", ki18n("Opens a KDE properties dialog to allow viewing and "
"modifying of metadata of the given file(s)"));
options.add("getValue <key>", ki18n("Prints the value for 'key' of the given file(s). 'key' "
"may also be a comma-separated list of keys"));
options.add("setValue <key=value>", ki18n("Attempts to set the value 'value' for the metadata key "
"'key' for the given file(s)"));
options.add("+[files]", ki18n("The file (or a number of files) to operate on."));
KCmdLineArgs::addCmdLineOptions( options );
KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
QList<FileProps *> m_props;
bool quiet = args->isSet( "quiet" );
int files = args->count();
if ( files == 0 ) {
KCmdLineArgs::usageError( i18n("No files specified") ); // exit()s
}
if ( args->isSet( "dialog" ) ) {
KApplication app;
showPropertiesDialog( args );
return 0;
}
QString mimeType;
for ( int i = 0; i < files; i++ ) {
//if ( args->isSet( "mimetype" ) )
//printMimeTypes( args );
FileProps *props = new FileProps( args->url(i).path());
if ( props->isValid() ) {
m_props.append( props );
} else {
if ( !quiet ) {
kWarning() << args->arg(i) << ": " <<
i18n("Cannot determine metadata").toLocal8Bit() << endl;
}
delete props;
}
}
processMetaDataOptions( m_props, args );
qDeleteAll(m_props); // force destruction/sync of props
return 0;
}

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@ -1,57 +0,0 @@
/* This file is part of the KDE libraries
Copyright (C) 2002 Carsten Pfeiffer <pfeiffer@kde.org>
library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation, version 2.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KFILEPROPS_H
#define KFILEPROPS_H
#include <QtCore/QString>
#include <kfilemetainfo.h>
#include <kurl.h>
class FileProps
{
public:
FileProps( const QString& path);
virtual ~FileProps();
bool isValid() const;
QString fileName() const { return m_info->url().path(); }
QStringList supportedKeys() const;
QStringList availableKeys() const;
QString getValue( const QString& key ) const;
bool setValue( const QString& key, const QString &value );
QStringList allValues() const;
bool isReadOnly( const QString& key );
private:
static QString createKeyValue( const KFileMetaInfoItem& item );
static QStringList createKeyValueList( const KFileMetaInfoItemList& items);
bool sync();
KFileMetaInfo *m_info;
bool m_dirty;
};
#endif // KFILEPROPS_H

93
kfile/kfile.cpp Normal file
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@ -0,0 +1,93 @@
/* This file is part of the KDE project
Copyright (C) 2022 Ivailo Monev <xakepa10@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2, as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <kaboutdata.h>
#include <kapplication.h>
#include <kcmdlineargs.h>
#include <kfilemetainfo.h>
#include <kurl.h>
#include <klocale.h>
#include <kdebug.h>
int main(int argc, char **argv)
{
KAboutData aboutData("kfile", 0, ki18n("kfile4"),
"1.0.0", ki18n("A command-line tool to read metadata of files."),
KAboutData::License_GPL_V2,
ki18n("(c) 2022 Ivailo Monev"),
KLocalizedString(),
"http://github.com/fluxer/katana"
);
aboutData.addAuthor(ki18n("Ivailo Monev"),
ki18n("Maintainer"),
"xakepa10@gmail.com");
KCmdLineArgs::init(argc, argv, &aboutData);
KCmdLineOptions options;
options.add("ls"); // short option for --listsupported
options.add("listsupported", ki18n("List all supported metadata keys." ));
options.add("la"); // short option for --listavailable
options.add("listavailable", ki18n("List all metadata keys which have a value in the given URL(s)."));
options.add("av"); // short option for --allValues
options.add("allvalues", ki18n("Prints all metadata values, available in the given URL(s)."));
options.add("getvalue <key>", ki18n("Prints the value for 'key' of the given URL(s). 'key' may also be a comma-separated list of keys"));
options.add("+[url]", ki18n("The URL(s) to operate on."));
KCmdLineArgs::addCmdLineOptions( options );
KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
if (args->count() == 0) {
// exits
KCmdLineArgs::usageError(i18n("No URL specified"));
}
const bool listsupported = (args->isSet("ls") || args->isSet("listsupported"));
const bool listavailable = (args->isSet("la") || args->isSet("listavailable"));
const bool allvalues = (args->isSet("av") || args->isSet("allvalues"));
const bool getvalue = args->isSet("getvalue");
if (!listsupported && !listavailable && !allvalues && !getvalue) {
KCmdLineArgs::usageError(i18n("One of listsupported, listavailable, allvalues or getvalue must be specified"));
}
for (int pos = 0; pos < args->count(); ++pos) {
const KUrl url = args->url(pos);
const KFileMetaInfo metainfo(url, KFileMetaInfo::Everything);
if (listsupported) {
foreach (const QString &key, metainfo.supportedKeys()) {
qDebug() << key;
}
} else if (listavailable) {
foreach (const QString &key, metainfo.keys()) {
qDebug() << key;
}
} else if (allvalues) {
foreach (const KFileMetaInfoItem &item, metainfo.items().values()) {
qDebug() << item.key() << item.value().toString();
}
} else if (getvalue) {
const QString getvaluekey = args->getOption("getvalue");
const KFileMetaInfoItem item = metainfo.item(getvaluekey);
qDebug() << item.value().toString();
} else {
Q_ASSERT(false);
}
}
return 0;
}