gogs: Ensure to list all repositories

In contrary of gitea listing which does not require to provide the q query
parameter, it is required for the gogs case.

After reading the gogs source code, the /repos/search endpoint generates
a sql request of the form: "SELECT * FROM repos WHERE name LIKE '%{q}%'".
By setting the q parameter value to "_", the LIKE clause acts as a
wildcard and all repositories are ensured to be returned.

Fixes #4698.

swh/lister/gogs/lister.py

@@ -89,10 +89,13 @@ class GogsLister(Lister[GogsListerState, GogsListerPage]):
             enable_origins=enable_origins,
         )
 
-        self.query_params = {
+        self.query_params: Dict[str, Any] = {
             "limit": page_size,
         }
 
+        if self.LISTER_NAME == "gogs":
+            self.query_params["q"] = "_"  # wildcard for all repositories
+
         self.api_token = api_token
         if self.api_token is None:
 
@@ -175,7 +178,7 @@ class GogsLister(Lister[GogsListerState, GogsListerPage]):
             yield GogsListerPage(repos=repos, next_link=next_link)
 
             if next_link is not None:
-                body, links = self.page_request(next_link, {})
+                body, links = self.page_request(next_link, self.query_params)
 
     def get_origins_from_page(self, page: GogsListerPage) -> Iterator[ListedOrigin]:
         """Convert a page of Gogs repositories into a list of ListedOrigins"""

swh/lister/gogs/tests/test_lister.py

@@ -18,7 +18,7 @@ TRY_GOGS_URL = "https://try.gogs.io/api/v1/"
 
 
 def try_gogs_page(n: int):
-    return TRY_GOGS_URL + GogsLister.REPO_LIST_PATH + f"?page={n}&limit=3"
+    return TRY_GOGS_URL + GogsLister.REPO_LIST_PATH + f"?q=_&page={n}&limit=3"
 
 
 P1 = try_gogs_page(1)