Define COPYRIGHT_YEAR in build files

This allows us to use the copyright year also in the following
patch that adds it as metadata to the windows executable.

Ideally we'd unify IDE_YEAR and IDE_AUTHOR (because they're
only used together anyway) but that would break translations.

Change-Id: If0f84eaeb22e9ba71b2b29798324b76a91eda78f
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

qbs/modules/qtc/qtc.qbs

@@ -17,6 +17,8 @@ Module {
     property string qtcreator_compat_version: ide_compat_version_major + '.'
             + ide_compat_version_minor + '.' + ide_compat_version_release
 
+    property string qtcreator_copyright_year: '2017'
+
     property string libDirName: "lib"
     property string ide_app_path: qbs.targetOS.contains("macos") ? "" : "bin"
     property string ide_app_target: qbs.targetOS.contains("macos") ? "Qt Creator" : "qtcreator"

qtcreator.pri

@@ -5,6 +5,7 @@ QTCREATOR_VERSION = 4.3.82
 QTCREATOR_COMPAT_VERSION = 4.3.82
 VERSION = $$QTCREATOR_VERSION
 QTCREATOR_DISPLAY_VERSION = 4.4.0-beta1
+QTCREATOR_COPYRIGHT_YEAR = 2017
 BINARY_ARTIFACTS_BRANCH = 4.4
 
 CONFIG += c++14

src/app/app_version.h.in

@@ -42,7 +42,7 @@ namespace Constants {
 const char * const IDE_VERSION_LONG      = IDE_VERSION_STR;
 const char * const IDE_VERSION_DISPLAY   = STRINGIFY(IDE_VERSION_DISPLAY_DEF);
 const char * const IDE_AUTHOR            = \"The Qt Company Ltd\";
-const char * const IDE_YEAR              = \"2017\";
+const char * const IDE_YEAR              = \"$${QTCREATOR_COPYRIGHT_YEAR}\";
 
 #ifdef IDE_REVISION
 const char * const IDE_REVISION_STR      = STRINGIFY(IDE_REVISION);

src/app/app_version_header.qbs

@@ -42,6 +42,8 @@ Product {
                         + product.moduleProperty("qtc", "ide_version_minor") + "\n");
                 content = content.replace(/(\n#define IDE_VERSION_RELEASE) .+\n/, "$1 "
                         + product.moduleProperty("qtc", "ide_version_release") + "\n");
+                content = content.replace(/(\n#define IDE_COPYRIGHT_YEAR) .+\n/, "$1 "
+                        + product.moduleProperty("qtc", "qtcreator_copyright_year") + "\n");
                 file = new TextFile(output.filePath, TextFile.WriteOnly);
                 file.truncate();
                 file.write(content);