FIX: support linkcheck builder (#9)

* FIX: use `blob` instead of `tree` in blob url

Author: redeboer

src/sphinx_api_relink/__init__.py

@@ -37,7 +37,6 @@ def setup(app: Sphinx) -> dict[str, Any]:
 
 
 def set_linkcode_resolve(app: Sphinx, _: BuildEnvironment) -> None:
-    raw_config = app.config._raw_config  # pyright: ignore[reportPrivateUsage]
     github_repo: str | None = app.config.api_github_repo
     if github_repo is None:
         msg = (
@@ -46,7 +45,7 @@ def set_linkcode_resolve(app: Sphinx, _: BuildEnvironment) -> None:
         )
         raise ValueError(msg)
     debug: bool = app.config.api_linkcode_debug
-    raw_config["linkcode_resolve"] = get_linkcode_resolve(github_repo, debug)
+    app.config.linkcode_resolve = get_linkcode_resolve(github_repo, debug)  # type: ignore[attr-defined]
 
 
 def generate_apidoc(app: Sphinx, _: BuildEnvironment) -> None:

src/sphinx_api_relink/linkcode.py

@@ -118,15 +118,15 @@ def get_blob_url(github_repo: str) -> str:
     print_once(f"The URL {blob_url} seems not to exist", color=Fore.MAGENTA)
     tag = _get_latest_tag()
     if tag is not None:
-        blob_url = f"{repo_url}/tree/{tag}"
+        blob_url = f"{repo_url}/blob/{tag}"
         print_once(f"--> falling back to {blob_url}", color=Fore.MAGENTA)
         if _url_exists(blob_url):
             return blob_url
-    blob_url = f"{repo_url}/tree/main"
+    blob_url = f"{repo_url}/blob/main"
     print_once(f"--> falling back to {blob_url}", color=Fore.MAGENTA)
     if _url_exists(blob_url):
         return blob_url
-    blob_url = f"{repo_url}/tree/master"
+    blob_url = f"{repo_url}/blob/master"
     print_once(f"--> falling back to {blob_url}", color=Fore.MAGENTA)
     return blob_url