workflows/eval: Use maintainer GitHub IDs for review requests of changed packages

The handles can change over time and there's nothing guaranteeing the
ones in the maintainer list are up-to-date. In comparison GitHub IDs
never change.

.github/workflows/eval.yml

@@ -267,11 +267,18 @@ jobs:
               -f "labels[]=$toAdd"
           done < <(comm -13 before after)
 
+          # maintainers.json contains GitHub IDs. Look up handles to request reviews from.
+          # There appears to be no API to request reviews based on GitHub IDs
+          jq -r 'keys[]' comparison/maintainers.json \
+            | while read -r id; do gh api /user/"$id"; done \
+            | jq -s '{ reviewers: map(.login) }' \
+            > reviewers.json
+
           # Request reviewers from maintainers of changed output paths
           GH_TOKEN=${{ steps.app-token.outputs.token }} gh api \
             --method POST \
             /repos/${{ github.repository }}/pulls/${{ github.event.number }}/requested_reviewers \
-            --input <(jq '{ reviewers: keys }' comparison/maintainers.json)
+            --input reviewers.json
 
         env:
           GH_TOKEN: ${{ github.token }}

ci/eval/compare/maintainers.nix

@@ -92,7 +92,7 @@ let
     builtins.map (
       pkg:
       builtins.map (maintainer: {
-        handle = lib.toLower maintainer.github;
+        id = maintainer.githubId;
         packageName = pkg.name;
         dueToFiles = pkg.filenames;
       }) pkg.maintainers
@@ -103,9 +103,9 @@ let
     ping: collector:
     collector
     // {
-      "${ping.handle}" = [
+      "${toString ping.id}" = [
         { inherit (ping) packageName dueToFiles; }
-      ] ++ (collector."${ping.handle}" or [ ]);
+      ] ++ (collector."${toString ping.id}" or [ ]);
     }
   ) { } listToPing;