upgrade to Svelte 5

.pre-commit-config.yaml

@@ -25,7 +25,7 @@ repos:
         additional_dependencies:
           - "[email protected]"
           - "[email protected]"
-          - "svelte@4.2.19"
+          - "svelte@5.16.0"
       - id: stylelint
         name: stylelint
         language: node

frontend/build.ts

@@ -31,6 +31,7 @@ async function runBuild(dev: boolean) {
     format: "esm",
     bundle: true,
     outfile: "../src/fava/static/app.js",
+    conditions: dev ? ["development"] : ["production"],
     external: ["fs", "path"], // for web-tree-sitter
     loader: {
       ".wasm": "file",

frontend/eslint.config.mjs

@@ -71,21 +71,8 @@ export default tseslint.config(
         parser: tseslint.parser,
       },
     },
-    settings: {
-      svelte: {
-        // These need to be disabled in the templates as these are not fully typed.
-        ignoreWarnings: [
-          "@typescript-eslint/no-unsafe-argument",
-          "@typescript-eslint/no-unsafe-assignment",
-          "@typescript-eslint/no-unsafe-member-access",
-        ],
-      },
-    },
     rules: {
       "svelte/button-has-type": ON,
-      // Has some false positives in Svelte files were we have if()
-      // checks to trigger re-computations:
-      "@typescript-eslint/no-unnecessary-condition": OFF,
     },
   },
 );

frontend/package.json

@@ -72,7 +72,7 @@
     "d3-shape": "^3.0.0",
     "d3-time": "^3.0.0",
     "d3-time-format": "^4.1.0",
-    "svelte": "^4.0.0",
+    "svelte": "^5.11.3",
     "web-tree-sitter": "^0.24.2"
   }
 }