feat: add -v --version flag to CLI

* also abstract version info into a standalone namespace

goldendict.pro

@@ -290,16 +290,17 @@ HEADERS += \
     src/ankiconnector.hh \
     src/article_maker.hh \
     src/article_netmgr.hh \
-    src/common/atomic_rename.hh \
     src/audiolink.hh \
     src/audioplayerfactory.hh \
     src/audioplayerinterface.hh \
     src/btreeidx.hh \
     src/chunkedstorage.hh \
+    src/common/atomic_rename.hh \
     src/common/base_type.hh \
     src/common/ex.hh \
     src/common/file.hh \
     src/common/filetype.hh \
+    src/common/folding.hh \
     src/common/gddebug.hh \
     src/common/globalbroadcaster.hh \
     src/common/globalregex.hh \
@@ -358,7 +359,6 @@ HEADERS += \
     src/externalviewer.hh \
     src/ffmpegaudio.hh \
     src/ffmpegaudioplayer.hh \
-    src/common/folding.hh \
     src/ftshelpers.hh \
     src/fulltextsearch.hh \
     src/gestures.hh \
@@ -406,6 +406,7 @@ HEADERS += \
     src/ui/searchpanewidget.hh \
     src/ui/stylescombobox.hh \
     src/ui/translatebox.hh \
+    src/version.hh \
     src/webmultimediadownload.hh \
     src/weburlrequestinterceptor.hh \
     src/wordfinder.hh \
@@ -418,13 +419,14 @@ SOURCES += \
     src/ankiconnector.cc \
     src/article_maker.cc \
     src/article_netmgr.cc \
-    src/common/atomic_rename.cc \
     src/audiolink.cc \
     src/audioplayerfactory.cc \
     src/btreeidx.cc \
     src/chunkedstorage.cc \
+    src/common/atomic_rename.cc \
     src/common/file.cc \
     src/common/filetype.cc \
+    src/common/folding.cc \
     src/common/gddebug.cc \
     src/common/globalbroadcaster.cc \
     src/common/globalregex.cc \
@@ -479,7 +481,6 @@ SOURCES += \
     src/externalaudioplayer.cc \
     src/externalviewer.cc \
     src/ffmpegaudio.cc \
-    src/common/folding.cc \
     src/ftshelpers.cc \
     src/fulltextsearch.cc \
     src/gestures.cc \
@@ -526,6 +527,7 @@ SOURCES += \
     src/ui/searchpanel.cc \
     src/ui/stylescombobox.cc \
     src/ui/translatebox.cc \
+    src/version.cc \
     src/webmultimediadownload.cc \
     src/weburlrequestinterceptor.cc \
     src/wordfinder.cc \

src/main.cc

@@ -7,6 +7,7 @@
 #include "config.hh"
 #include <QWebEngineProfile>
 #include "hotkeywrapper.hh"
+#include "version.hh"
 #ifdef HAVE_X11
 #include <fixx11h.h>
 #endif
@@ -173,12 +174,17 @@ void processCommandLine( QCoreApplication * app, GDOptions * result)
                                                       << "toggle-scan-popup",
                                         QObject::tr( "Toggle scan popup." ) );
 
+  QCommandLineOption printVersion( QStringList() << "v"
+                                                 << "version",
+                                   QObject::tr( "Print version and diagnosis info." ) );
+
   qcmd.addOption( logFileOption );
   qcmd.addOption( groupNameOption );
   qcmd.addOption( popupGroupNameOption );
   qcmd.addOption( togglePopupOption );
   qcmd.addOption( notts );
   qcmd.addOption( resetState );
+  qcmd.addOption( printVersion );
 
   QCommandLineOption doNothingOption( "disable-web-security" ); // ignore the --disable-web-security
   doNothingOption.setFlags( QCommandLineOption::HiddenFromHelp );
@@ -210,6 +216,11 @@ void processCommandLine( QCoreApplication * app, GDOptions * result)
     result->resetState = true;
   }
 
+  if ( qcmd.isSet( printVersion ) ) {
+    qInfo() << qPrintable( Version::everything() );
+    std::exit( 0 );
+  }
+
   const QStringList posArgs = qcmd.positionalArguments();
   if ( !posArgs.empty() ) {
     result->word = posArgs.at( 0 );

src/ui/about.cc

@@ -3,6 +3,7 @@
 
 #include "about.hh"
 #include "utils.hh"
+#include "version.hh"
 
 #include <QClipboard>
 #include <QFile>
@@ -13,61 +14,15 @@ About::About( QWidget * parent, std::vector< sptr< Dictionary::Class > > * dicto
 {
   ui.setupUi( this );
 
-  QFile versionFile( ":/version.txt" );
+  ui.version->setText( Version::version() );
 
-  QString version;
+  ui.qtVersion->setText( tr( "Based on Qt %1 (%2, %3)" )
+                           .arg( QLatin1String( qVersion() ), Version::compiler, QSysInfo::currentCpuArchitecture() )
+                         + " (Xapian inside)" );
 
-  if ( !versionFile.open( QFile::ReadOnly ) )
-    version = tr( "[Unknown]" );
-  else
-    version = QString::fromLatin1( versionFile.readAll() ).trimmed();
-
-  ui.version->setText( version );
-
-#if defined (_MSC_VER)
-  QString compilerVersion = QString( "Visual C++ Compiler: %1" )
-                               .arg( _MSC_FULL_VER );
-#elif defined (__clang__) && defined (__clang_version__)
-  QString compilerVersion = QLatin1String( "Clang " ) + QLatin1String( __clang_version__ );
-#else
-  QString compilerVersion = QLatin1String( "GCC " ) + QLatin1String( __VERSION__ );
-#endif
-
-  ui.qtVersion->setText( tr( "Based on Qt %1 (%2, %3 bit)" ).arg(
-                           QLatin1String( qVersion() ),
-                           compilerVersion,
-                           QString::number( QSysInfo::WordSize ) )
-  +" (Xapian inside)"
-                         );
-
-  // copy basic debug info to clipboard
-  connect(ui.copyInfoBtn, &QPushButton::clicked, [=]{
-      QGuiApplication::clipboard()->setText(
-          "Goldendict " + version + "\n" +
-          QSysInfo::productType() + " " + QSysInfo::kernelType() + " " + QSysInfo::kernelVersion() + " " +
-          "Qt " + QLatin1String(qVersion()) + " " +
-          QSysInfo::buildAbi() + "\n" +
-          compilerVersion + "\n"
-    + "Flags:"
-         +" USE_XAPIAN "
-
-#ifdef MAKE_ZIM_SUPPORT
-         +" MAKE_ZIM_SUPPORT"
-#endif
-
-#ifdef NO_EPWING_SUPPORT
-         +" NO_EPWING_SUPPORT"
-#endif
-
-#ifdef USE_ICONV
-        +" USE_ICONV"
-#endif
-
-#ifdef MAKE_CHINESE_CONVERSION_SUPPORT
-         +" MAKE_CHINESE_CONVERSION_SUPPORT"
-#endif
-      );
-  });
+  connect( ui.copyInfoBtn, &QPushButton::clicked, [] {
+    QGuiApplication::clipboard()->setText( Version::everything() );
+  } );
 
   connect(ui.copyDictListBtn, &QPushButton::clicked, [=]{
       QString tempDictList{};

src/version.cc

@@ -0,0 +1,24 @@
+#include "version.hh"
+#include <QFile>
+
+namespace Version {
+QString version()
+{
+  QFile versionFile( ":/version.txt" );
+
+  if ( !versionFile.open( QFile::ReadOnly ) ) {
+    return QStringLiteral( "[Unknown Version]" );
+  }
+  else {
+    return versionFile.readAll().trimmed();
+  }
+}
+
+QString everything()
+{
+  return QStringLiteral( "Goldendict-ng " ) + Version::version() + "\n" + "Qt " + QLatin1String( qVersion() ) + " "
+    + Version::compiler + QSysInfo::productType() + " " + QSysInfo::kernelType() + " " + QSysInfo::kernelVersion() + " "
+    + QSysInfo::buildAbi() + "\n" + "Flags:" + flags;
+}
+
+} // namespace Version

src/version.hh

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <QString>
+
+namespace Version {
+
+const QLatin1String flags = QLatin1String(
+  "USE_XAPIAN"
+#ifdef MAKE_ZIM_SUPPORT
+  " MAKE_ZIM_SUPPORT"
+#endif
+#ifdef NO_EPWING_SUPPORT
+  " NO_EPWING_SUPPORT"
+#endif
+#ifdef USE_ICONV
+  " USE_ICONV"
+#endif
+#ifdef MAKE_CHINESE_CONVERSION_SUPPORT
+  " MAKE_CHINESE_CONVERSION_SUPPORT"
+#endif
+);
+
+const QLatin1String compiler = QLatin1String(
+#if defined( Q_CC_MSVC )
+  "Visual C++ Compiler " QT_STRINGIFY( _MSC_FULL_VER )
+#elif  defined( Q_CC_CLANG )
+  "Clang " __clang_version__
+#elif  defined( Q_CC_GNU )
+  "GCC " __VERSION__
+#else
+  "Unknown complier"
+#endif
+);
+/// Version string from the version.txt
+QString version();
+
+/// Full report of version & various information
+QString everything();
+
+} // namespace Version