workspace: add eslint-config package (#510)

packages/hydrooj/src/error.ts

@@ -33,7 +33,6 @@ export class HydroError extends Error {
         this.params = params;
     }
 
-    // eslint-disable-next-line class-methods-use-this
     msg() {
         return 'HydroError';
     }

packages/hydrooj/src/handler/problem.ts

@@ -771,13 +771,9 @@ export class ProblemFilesHandler extends ProblemDetailHandler {
             }
         }
         for (const entry of files) {
-            if (entry.type === 'testdata') {
-                // eslint-disable-next-line no-await-in-loop
-                await problem.addTestdata(domainId, this.pdoc.docId, entry.name, entry.data(), this.user._id);
-            } else {
-                // eslint-disable-next-line no-await-in-loop
-                await problem.addAdditionalFile(domainId, this.pdoc.docId, entry.name, entry.data(), this.user._id);
-            }
+            const method = entry.type === 'testdata' ? 'addTestdata' : 'addAdditionalFile';
+            // eslint-disable-next-line no-await-in-loop
+            await problem[method](domainId, this.pdoc.docId, entry.name, entry.data(), this.user._id);
         }
         this.back();
     }

packages/hydrooj/src/lib/rating.ts

@@ -26,7 +26,6 @@ class RatingCalculator {
         }
     }
 
-    // eslint-disable-next-line class-methods-use-this
     calP(a: User, b: User) {
         return 1 / (1 + 10 ** ((b.old - a.old) / 400));
     }