pro2cmake: Handle QT_(MAJOR_|MINOR_|PATCH_)VERSION conditions

Task-number: QTBUG-98852
Change-Id: I4c86fff7bbcc6c42cd04094f2409c3d04779597c
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

util/cmake/pro2cmake.py

@@ -1669,6 +1669,28 @@ def map_condition(condition: str) -> str:
     pattern = r"(equals|greaterThan|lessThan)\(WINDOWS_SDK_VERSION,[ ]*([0-9]+)\)"
     condition = re.sub(pattern, windows_sdk_version_handler, condition)
 
+    def qt_version_handler(match_obj: Match):
+        operator = match_obj.group(1)
+        if operator == "equals":
+            operator = "EQUAL"
+        elif operator == "greaterThan":
+            operator = "GREATER"
+        elif operator == "lessThan":
+            operator = "LESS"
+
+        operator_prefix = "VERSION_"
+        version_variable = "QT_VERSION"
+        version_flavor = match_obj.group(2)
+        if version_flavor:
+            version_variable += "_" + version_flavor[:-1]
+            operator_prefix = ""
+
+        version = match_obj.group(3)
+        return f"({version_variable} {operator_prefix}{operator} {version})"
+
+    pattern = r"(equals|greaterThan|lessThan)\(QT_(MAJOR_|MINOR_|PATCH_)?VERSION,[ ]*([0-9.]+)\)"
+    condition = re.sub(pattern, qt_version_handler, condition)
+
     # Generic lessThan|equals|lessThan()
 
     def generic_version_handler(match_obj: Match):

util/cmake/tests/data/conversion/qt_version_check.pro

@@ -0,0 +1,8 @@
+QT += core gui
+SOURCES += main.cpp
+greaterThan(QT_MAJOR_VERSION, 5):lessThan(QT_MINOR_VERSION, 1):equals(QT_PATCH_VERSION, 0) {
+    DEFINES += SUPER_FRESH_MAJOR_QT_RELEASE
+}
+greaterThan(QT_VERSION, 6.6.5):lessThan(QT_VERSION, 6.6.7):equals(QT_VERSION, 6.6.6): {
+    DEFINES += QT_VERSION_OF_THE_BEAST
+}

util/cmake/tests/test_conversion.py

@@ -81,3 +81,11 @@ def test_qt_modules():
     assert(["find_package(QT NAMES Qt5 Qt6 REQUIRED COMPONENTS Core)",
             "find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Network Widgets)",
             "find_package(Qt${QT_VERSION_MAJOR} OPTIONAL_COMPONENTS OpenGL)"] == find_package_lines)
+
+def test_qt_version_check():
+    output = convert("qt_version_check")
+    interesting_lines = []
+    for line in output.split("\n"):
+        if line.startswith("if(") and "QT_VERSION" in line:
+            interesting_lines.append(line.strip())
+    assert(["if(( ( (QT_VERSION_MAJOR GREATER 5) ) AND (QT_VERSION_MINOR LESS 1) ) AND (QT_VERSION_PATCH EQUAL 0))", "if(( ( (QT_VERSION VERSION_GREATER 6.6.5) ) AND (QT_VERSION VERSION_LESS 6.6.7) ) AND (QT_VERSION VERSION_EQUAL 6.6.6))"] == interesting_lines)