Add WebEngineVersions.chromium_major

qutebrowser/browser/webengine/darkmode.py

@@ -342,8 +342,7 @@ def _variant(versions: version.WebEngineVersions) -> Variant:
             log.init.warning(f"Ignoring invalid QUTE_DARKMODE_VARIANT={env_var}")
 
     if (versions.webengine == utils.VersionNumber(5, 15, 2) and
-            versions.chromium is not None and
-            versions.chromium.startswith('87.')):
+            versions.chromium_major == 87):
         # WORKAROUND for Gentoo packaging something newer as 5.15.2...
         return Variant.qt_515_3
     elif versions.webengine >= utils.VersionNumber(5, 15, 3):

qutebrowser/utils/version.py

@@ -525,6 +525,7 @@ class WebEngineVersions:
     webengine: utils.VersionNumber
     chromium: Optional[str]
     source: str
+    chromium_major: Optional[int] = dataclasses.field(init=False)
 
     _CHROMIUM_VERSIONS: ClassVar[Dict[utils.VersionNumber, str]] = {
         # Qt 5.12: Chromium 69
@@ -562,11 +563,20 @@ class WebEngineVersions:
         #          5.15.1: Security fixes up to 85.0.4183.83  (2020-08-25)
         #          5.15.2: Updated to 83.0.4103.122           (~2020-06-24)
         #                  Security fixes up to 86.0.4240.183 (2020-11-02)
+        #          5.15.3: Updated to 87.0.4280.144           (~2020-12-02)
+        #                  Security fixes up to 88.0.4324.150 (2021-02-04)
         utils.VersionNumber(5, 15): '80.0.3987.163',
         utils.VersionNumber(5, 15, 2): '83.0.4103.122',
         utils.VersionNumber(5, 15, 3): '87.0.4280.144',
     }
 
+    def __post_init__(self):
+        """Set the major Chromium version."""
+        if self.chromium is None:
+            self.chromium_major = None
+        else:
+            self.chromium_major = int(self.chromium.split('.')[0])
+
     def __str__(self) -> str:
         s = f'QtWebEngine {self.webengine}'
         if self.chromium is not None:

tests/unit/utils/test_version.py

@@ -926,6 +926,25 @@ class TestWebEngineVersions:
     def test_str(self, version, expected):
         assert str(version) == expected
 
+    @pytest.mark.parametrize('version, expected', [
+        (
+            version.WebEngineVersions(
+                webengine=utils.VersionNumber(5, 15, 2),
+                chromium=None,
+                source='test'),
+            None,
+        ),
+        (
+            version.WebEngineVersions(
+                webengine=utils.VersionNumber(5, 15, 2),
+                chromium='87.0.4280.144',
+                source='test'),
+            87,
+        ),
+    ])
+    def test_chromium_major(self, version, expected):
+        assert version.chromium_major == expected
+
     def test_from_ua(self):
         ua = websettings.UserAgent(
             os_info='X11; Linux x86_64',