Added support for Format.JS files

Companion to WeblateOrg/weblate#10725

CHANGES.rst

@@ -5,6 +5,7 @@ Changelog
 ----
 
 * Not yet released.
+* Added support for Format.JS files.
 
 2.16
 ----

translation_finder/discovery/files.py

@@ -558,3 +558,23 @@ class TBXDiscovery(BaseDiscovery):
 
     file_format = "tbx"
     mask = "*.tbx"
+
+
+@register_discovery
+class FormatJSDiscovery(BaseDiscovery):
+    """Format.JS JSON files discovery."""
+
+    file_format = "formatjs"
+
+    def get_masks(self, eager: bool = False, hint: Optional[str] = None):
+        """
+        Return all file masks found in the directory.
+
+        It is expected to contain duplicates.
+        """
+        for path in self.finder.filter_files(r"en.json", ".*/extracted"):
+            mask = list(path.parts)
+            mask[-1] = "*.json"
+            mask[-2] = "lang"
+
+            yield {"filemask": "/".join(mask), "template": path.as_posix()}

translation_finder/test_discovery.py

@@ -11,6 +11,7 @@
     MOKODiscovery,
     AppStoreDiscovery,
     ARBDiscovery,
+    FormatJSDiscovery,
     CSVDiscovery,
     FluentDiscovery,
     GettextDiscovery,
@@ -1363,3 +1364,44 @@ def test_hint(self):
                 },
             ],
         )
+
+
+class FormatJSDiscoveryTest(DiscoveryTestCase):
+    def test_basic(self):
+        discovery = FormatJSDiscovery(
+            self.get_finder(
+                [
+                    "src/lang/cs.json",
+                    "src/extracted/en.json",
+                ]
+            )
+        )
+        self.assert_discovery(
+            discovery.discover(),
+            [
+                {
+                    "filemask": "src/lang/*.json",
+                    "template": "src/extracted/en.json",
+                    "file_format": "formatjs",
+                }
+            ],
+        )
+
+    def test_nontranslated(self):
+        discovery = FormatJSDiscovery(
+            self.get_finder(
+                [
+                    "src/extracted/en.json",
+                ]
+            )
+        )
+        self.assert_discovery(
+            discovery.discover(),
+            [
+                {
+                    "filemask": "src/lang/*.json",
+                    "template": "src/extracted/en.json",
+                    "file_format": "formatjs",
+                }
+            ],
+        )