url and instance are now mandatory

swh/lister/dlang/__init__.py

@@ -22,7 +22,7 @@ Origins retrieving strategy
 ---------------------------
 
 To build a list of origins we make a GET request to an `http api endpoint`_ that returns
-a Json array of objects.
+a JSON-formatted array of objects.
 The origin url for each package is constructed with the information of corresponding
 `repository` entry which represents Git based projects hosted on Github, GitLab or
 Bitbucket.

swh/lister/dlang/lister.py

@@ -27,18 +27,19 @@ class DlangLister(StatelessLister[DlangListerPage]):
     INSTANCE = "dlang"
 
     BASE_URL = "https://code.dlang.org"
-    PACKAGES_DUMP_URL = BASE_URL + "/api/packages/dump"
+    PACKAGES_DUMP_URL_PATTERN = "{url}/api/packages/dump"
     KINDS = {
         "github": "https://github.com",
         "gitlab": "https://gitlab.com",
         "bitbucket": "https://bitbucket.com",
     }
-
     KIND_URL_PATTERN = "{url}/{owner}/{project}"
 
     def __init__(
         self,
         scheduler: SchedulerInterface,
+        url: str = BASE_URL,
+        instance: str = INSTANCE,
         credentials: Optional[CredentialsType] = None,
         max_origins_per_page: Optional[int] = None,
         max_pages: Optional[int] = None,
@@ -47,8 +48,8 @@ class DlangLister(StatelessLister[DlangListerPage]):
         super().__init__(
             scheduler=scheduler,
             credentials=credentials,
-            instance=self.INSTANCE,
-            url=self.PACKAGES_DUMP_URL,
+            instance=instance,
+            url=self.PACKAGES_DUMP_URL_PATTERN.format(url=url),
             max_origins_per_page=max_origins_per_page,
             max_pages=max_pages,
             enable_origins=enable_origins,