yt-dlp: fix impersonation with curl-cffi (#460076)

pkgs/by-name/yt/yt-dlp/package.nix

@@ -32,6 +32,10 @@ python3Packages.buildPythonApplication rec {
   postPatch = ''
     substituteInPlace yt_dlp/version.py \
       --replace-fail "UPDATE_HINT = None" 'UPDATE_HINT = "Nixpkgs/NixOS likely already contain an updated version.\n       To get it run nix-channel --update or nix flake update in your config directory."'
+    # Until yt-dlp supports curl-cffi 0.14.x, this patch is needed:
+    substituteInPlace yt_dlp/networking/_curlcffi.py \
+      --replace-fail "if curl_cffi_version != (0, 5, 10) and not (0, 10) <= curl_cffi_version < (0, 14)" \
+      "if curl_cffi_version != (0, 5, 10) and not (0, 10) <= curl_cffi_version"
   '';
 
   build-system = with python3Packages; [ hatchling ];
@@ -94,8 +98,14 @@ python3Packages.buildPythonApplication rec {
       ''--prefix PATH : "${lib.makeBinPath packagesToBinPath}"''
     ];
 
-  # Requires network
-  doCheck = false;
+  checkPhase = ''
+    # Check for "unsupported" string in yt-dlp -v output.
+    output=$($out/bin/yt-dlp -v 2>&1 || true)
+    if echo $output | grep -q "unsupported"; then
+      echo "ERROR: Found \"unsupported\" string in yt-dlp -v output."
+      exit 1
+    fi
+  '';
 
   postInstall = ''
     installManPage yt-dlp.1