Fix 'unspecified-encoding' lint

nixpkgs_review/cli/__init__.py

@@ -135,7 +135,7 @@ def read_github_token() -> str | None:
     if token:
         return token
     try:
-        with open(hub_config_path()) as f:
+        with open(hub_config_path(), encoding="utf-8") as f:
             for line in f:
                 # Allow substring match as hub uses yaml. Example string we match:
                 # " - oauth_token: ghp_abcdefghijklmnopqrstuvwxyzABCDEF1234\n"

nixpkgs_review/cli/post_result.py

@@ -21,6 +21,6 @@ def post_result_command(args: argparse.Namespace) -> None:
         warn(f"Report not found in {report}. Are you in a nixpkgs-review nix-shell?")
         sys.exit(1)
 
-    with open(report) as f:
+    with open(report, encoding="utf-8") as f:
         report_text = f.read()
     github_client.comment_issue(pr, report_text)

nixpkgs_review/nix.py

@@ -297,7 +297,7 @@ def nix_build(
 def write_shell_expression(
     filename: Path, attrs: list[str], system: str, nixpkgs_config: Path
 ) -> None:
-    with open(filename, "w+") as f:
+    with open(filename, "w+", encoding="utf-8") as f:
         f.write(
             f"""{{ pkgs ? import ./nixpkgs {{ system = \"{system}\"; config = import {nixpkgs_config}; }} }}:
 with pkgs;

nixpkgs_review/report.py

@@ -71,7 +71,9 @@ def write_error_logs(attrs: list[Attr], directory: Path) -> None:
         for path in [f"{attr.drv_path}^*", attr.path]:
             if not path:
                 continue
-            with open(logs.ensure().joinpath(attr.name + ".log"), "w+") as f:
+            with open(
+                logs.ensure().joinpath(attr.name + ".log"), "w+", encoding="utf-8"
+            ) as f:
                 nix_log = subprocess.run(
                     [
                         "nix",
@@ -122,10 +124,10 @@ def built_packages(self) -> list[str]:
         return [a.name for a in self.built]
 
     def write(self, directory: Path, pr: int | None) -> None:
-        with open(directory.joinpath("report.md"), "w+") as f:
+        with open(directory.joinpath("report.md"), "w+", encoding="utf-8") as f:
             f.write(self.markdown(pr))
 
-        with open(directory.joinpath("report.json"), "w+") as f:
+        with open(directory.joinpath("report.json"), "w+", encoding="utf-8") as f:
             f.write(self.json(pr))
 
         write_error_logs(self.attrs, directory)

nixpkgs_review/review.py

@@ -400,7 +400,7 @@ def list_packages(
                 % res.returncode
             )
         tmp.flush()
-        with open(tmp.name) as f:
+        with open(tmp.name, encoding="utf-8") as f:
             return parse_packages_xml(f)