Run license checker in qmake

Check for a valid license not only in configure, but also in qmake.
To limit the runtime overhead we cache the day of the last run in
a .stash file. This allows us to run licheck only for the top-level
qmake call, and only once per day.

This requires an updated licheck executable that supports the new
check mode.

[ChangeLog][Tools][qmake] For commercial builds, qmake now checks for
a valid Qt license. This requires setting up a Qt Account (or
.qt-license file) on the development machine.

Change-Id: I2c2a05a4602cc661560568b76ddf520cb8134769
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

configure

@@ -6776,9 +6776,14 @@ QT_LIBINFIX = $QT_LIBINFIX
 QT_NAMESPACE = $QT_NAMESPACE
 
 QT_EDITION = $Edition
-
 EOF
 
+if [ "$Edition" != "OpenSource" ] && [ "$Edition" != "Preview" ]; then
+    echo "QT_LICHECK = $Licheck" >> "$QTCONFIG.tmp"
+    echo "QT_RELEASE_DATE = $ReleaseDate" >> "$QTCONFIG.tmp"
+fi
+echo >> "$QTCONFIG.tmp"
+
 if [ "$CFG_SHARED" = "no" ]; then
     echo "QT_DEFAULT_QPA_PLUGIN = q$QT_QPA_DEFAULT_PLATFORM" >> "$QTCONFIG.tmp"
     echo >> "$QTCONFIG.tmp"

mkspecs/features/default_pre.prf

@@ -7,3 +7,18 @@ CONFIG = \
     lex yacc debug exceptions depend_includepath \
     testcase_targets import_plugins import_qpa_plugin \
     $$CONFIG
+
+!build_pass:defined(QT_EDITION, var):!equals(QT_EDITION, "OpenSource"):!equals(QT_EDITION, "Preview") {
+    #
+    # call license checker (but cache result for one day)
+    #
+    today = $$section(_DATE_, " ", 0, 2)
+    !isEqual(QMAKE_LICHECK_TIMESTAMP, $$today) {
+        !system("$$system_quote($$system_path($$[QT_HOST_BINS/src]/$$QT_LICHECK)) check" \
+                "$$QT_RELEASE_DATE $$[QMAKE_SPEC] $$[QMAKE_XSPEC]"): \
+            error("License check failed! Giving up ...")
+
+        cache(QMAKE_LICHECK_TIMESTAMP, set stash, today)
+    }
+    unset(today)
+}

qtbase.pro

@@ -46,6 +46,11 @@ equals(QMAKE_HOST.os, Windows) {
 }
 INSTALLS += qmake
 
+#licheck
+licheck.path = $$[QT_HOST_BINS]
+licheck.files = $$PWD/bin/$$QT_LICHECK
+exists($$licheck.files): INSTALLS += licheck
+
 #syncqt
 syncqt.path = $$[QT_HOST_BINS]
 syncqt.files = $$PWD/bin/syncqt.pl

tools/configure/configureapp.cpp

@@ -3463,6 +3463,11 @@ void Configure::generateQConfigPri()
         configStream << endl
                      << "QT_EDITION = " << dictionary["EDITION"] << endl;
 
+        if (dictionary["EDITION"] != "OpenSource" && dictionary["EDITION"] != "Preview") {
+            configStream << "QT_LICHECK = " << dictionary["LICHECK"] << endl;
+            configStream << "QT_RELEASE_DATE = " << dictionary["RELEASEDATE"] << endl;
+        }
+
         if (!dictionary["CFG_SYSROOT"].isEmpty() && dictionary["CFG_GCC_SYSROOT"] == "yes") {
             configStream << endl
                          << "# sysroot" << endl

tools/configure/tools.cpp

@@ -54,6 +54,8 @@ void Tools::checkLicense(QMap<QString,QString> &dictionary,
         return;
     }
 
+    dictionary["LICHECK"] = "licheck.exe";
+
     const QString licenseChecker =
         QDir::toNativeSeparators(sourcePath + "/bin/licheck.exe");