fix: extra slash in path (#156)

Author: yesmeck

src/build.ts

@@ -39,7 +39,7 @@ async function buildHelpers(config: RequiredReactRouterConfig): Promise<[RoutesI
       } else {
         currentPath = [...currentPath, route];
         const fullPath = dedupPrefixSlash(currentPath.reduce(
-          (acc, curr) => [acc, trimSlash(curr.path)].filter(p => p != undefined).join('/'),
+          (acc, curr) => "/" + [acc, trimSlash(curr.path)].filter(Boolean).join('/'),
           '',
         ));
         const paramsNames = parse(currentPath);

tests/__snapshots__/build.test.ts.snap

@@ -77,6 +77,14 @@ exports[`gen route types 1`] = `
       params: never,
       query: ExportedQuery<import('../app/routes/credits.js').SearchParams>,
     },
+    "/fruits": {
+      params: never,
+      query: ExportedQuery<import('../app/routes/fruits/index/route.js').SearchParams>,
+    },
+    "/fruits/:id": {
+      params: {'id': string | number},
+      query: ExportedQuery<import('../app/routes/fruits/show/route.js').SearchParams>,
+    },
     "/home": {
       params: never,
       query: ExportedQuery<import('../app/routes/(static).home.js').SearchParams>,
@@ -171,6 +179,9 @@ exports[`gen route types 1`] = `
             | 'routes/blog._index'
             | 'routes/auth.$provider-key'
             | 'routes/($provider-key).about'
+            | 'routes/fruits/route'
+            | 'routes/fruits/index/route'
+            | 'routes/fruits/show/route'
             | 'catchall';
 
   export function $path<

tests/fixture.ts

@@ -196,6 +196,24 @@ export const testRoutes =
     path: ":provider-key?/about",
     parentId: "root",
   },
+  "routes/fruits/route": {
+    file: "routes/fruits/route.tsx",
+    id: "routes/fruits/route",
+    path: "fruits",
+    parentId: "root",
+  },
+  "routes/fruits/index/route": {
+    file: "routes/fruits/index/route.tsx",
+    id: "routes/fruits/index/route",
+    path: "",
+    parentId: "routes/fruits/route",
+  },
+  "routes/fruits/show/route": {
+    file: "routes/fruits/show/route.tsx",
+    id: "routes/fruits/show/route",
+    path: ":id",
+    parentId: "routes/fruits/index/route",
+  },
   catchall: {
     path: "/somewhere/cool/*",
     index: undefined,