Send the store listing to Play's default language

RELEASING.md

@@ -186,8 +186,8 @@ New personal developer accounts must also run a closed test with at least 12 tes
 and the phone screenshots). F-Droid reads it from each release tag.
 
 Google Play gets it from `.github/workflows/play-listing.yml`, whenever it changes on `master`,
-or when the workflow is run by hand (`scripts/play_listing.py`). Only what differs from Play's
-listing is changed, so the listing goes to review only when it has changed. On pull requests,
+or when the workflow is run by hand (`scripts/play_listing.py`). It goes to the app's default
+language in Play Console, whichever that is. Only what differs from Play's listing is changed, so the listing goes to review only when it has changed. On pull requests,
 the workflow checks the listing against Play's limits instead: text lengths, image sizes, and
 two to eight screenshots.
 

scripts/play_listing.py

@@ -10,6 +10,9 @@
 there, the Workload Identity Federation credentials google-github-actions/auth writes; locally,
 gcloud auth application-default login --impersonate-service-account=<the Play service account>.
 
+The listing goes to the app's default language on Play, whichever that is (it's set in Play
+Console); fastlane/ has the one listing, in en-US.
+
 Only what differs from Play's listing is changed: text as it is, images by their SHA-256, so
 merging something else doesn't send the listing for review again. With nothing to change,
 the edit is thrown away.
@@ -22,9 +25,8 @@
 from PIL import Image
 
 PACKAGE = "org.clementine_player.remote"
-LANGUAGE = "en-US"
 ROOT = Path(__file__).resolve().parent.parent
-LISTING = ROOT / "fastlane" / "metadata" / "android" / LANGUAGE
+LISTING = ROOT / "fastlane" / "metadata" / "android" / "en-US"
 IMAGES = LISTING / "images"
 
 # Play's limits, from Play Console's store listing page.
@@ -95,17 +97,26 @@ def sha256(path):
 def publish(fields, files):
     import google.auth
     from googleapiclient.discovery import build
+    from googleapiclient.errors import HttpError
     from googleapiclient.http import MediaFileUpload
 
     credentials, _ = google.auth.default(scopes=["https://www.googleapis.com/auth/androidpublisher"])
     edits = build("androidpublisher", "v3", credentials=credentials, cache_discovery=False).edits()
     edit = edits.insert(packageName=PACKAGE, body={}).execute()["id"]
-    where = dict(packageName=PACKAGE, editId=edit, language=LANGUAGE)
     changed = []
     try:
-        current = edits.listings().get(**where).execute()
+        language = edits.details().get(packageName=PACKAGE, editId=edit).execute()["defaultLanguage"]
+        where = dict(packageName=PACKAGE, editId=edit, language=language)
+        try:
+            current = edits.listings().get(**where).execute()
+        except HttpError as error:
+            if error.status_code != 404:
+                raise
+            current = {}
         if any(current.get(field) != value for field, value in fields.items()):
-            edits.listings().patch(**where, body=fields).execute()
+            # Patched, keeping what isn't ours (the video); made, when there's none yet.
+            (edits.listings().patch if current else edits.listings().update)(
+                **where, body=fields).execute()
             changed.append("text")
 
         for kind, paths in files.items():
@@ -121,10 +132,10 @@ def publish(fields, files):
 
         if changed:
             edits.commit(packageName=PACKAGE, editId=edit).execute()
-            print(f"Updated Play's listing: {', '.join(changed)}")
+            print(f"Updated Play's listing ({language}): {', '.join(changed)}")
         else:
             edits.delete(packageName=PACKAGE, editId=edit).execute()
-            print("Play's listing already matches")
+            print(f"Play's listing ({language}) already matches")
     except BaseException:
         # Not left open, so the next run's edit isn't refused; the error is the one to report.
         try: