Generate version header when configuring project

The basic idea is we create a version header template at
"src/base/version.h.in" and the build systems are expected to replace
strings that are enclosed with @ symbols and generate
"src/base/version.h" for other source files to consume/include.

src/base/CMakeLists.txt

@@ -86,6 +86,7 @@ add_library(qbt_base STATIC
     utils/random.h
     utils/string.h
     utils/version.h
+    version.h
 
     # sources
     asyncfilestorage.cpp
@@ -165,7 +166,6 @@ target_link_libraries(qbt_base
     PRIVATE
         OpenSSL::Crypto OpenSSL::SSL
         ZLIB::ZLIB
-        qbt_version_definitions
     PUBLIC
         LibtorrentRasterbar::torrent-rasterbar
         Qt5::Core Qt5::Network Qt5::Xml

src/base/base.pri

@@ -85,7 +85,8 @@ HEADERS += \
     $$PWD/utils/password.h \
     $$PWD/utils/random.h \
     $$PWD/utils/string.h \
-    $$PWD/utils/version.h
+    $$PWD/utils/version.h \
+    $$PWD/version.h
 
 SOURCES += \
     $$PWD/asyncfilestorage.cpp \

src/base/bittorrent/session.cpp

@@ -84,6 +84,7 @@
 #include "base/utils/misc.h"
 #include "base/utils/net.h"
 #include "base/utils/random.h"
+#include "base/version.h"
 #include "bandwidthscheduler.h"
 #include "common.h"
 #include "customstorage.h"

src/base/bittorrent/torrentcreatorthread.cpp

@@ -45,6 +45,7 @@
 #include "base/utils/fs.h"
 #include "base/utils/io.h"
 #include "base/utils/string.h"
+#include "base/version.h"
 #include "ltunderlyingtype.h"
 
 namespace

src/base/net/dnsupdater.cpp

@@ -34,6 +34,7 @@
 
 #include "base/logger.h"
 #include "base/net/downloadmanager.h"
+#include "base/version.h"
 
 using namespace Net;
 

src/base/version.h.in

@@ -0,0 +1,37 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2021  Mike Tzou (Chocobo1)
+ *
+ * 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.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#pragma once
+
+#define QBT_VERSION_MAJOR @VER_MAJOR@
+#define QBT_VERSION_MINOR @VER_MINOR@
+#define QBT_VERSION_BUGFIX @VER_BUGFIX@
+#define QBT_VERSION_BUILD @VER_BUILD@
+
+#define QBT_VERSION "v@PROJECT_VERSION@"
+#define QBT_VERSION_2 "@PROJECT_VERSION@"