Bun build & pure ESM

.changeset/flat-clubs-beam.md

@@ -0,0 +1,5 @@
+---
+"@omnidev/sigil": minor
+---
+
+**BREAKING:** Convert Sigil to a pure, ESM-only package; remove CJS support

eslint.config.mjs

@@ -0,0 +1,153 @@
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+import { fixupConfigRules, fixupPluginRules } from "@eslint/compat";
+import { FlatCompat } from "@eslint/eslintrc";
+import js from "@eslint/js";
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import tsParser from "@typescript-eslint/parser";
+import { defineConfig, globalIgnores } from "eslint/config";
+import _import from "eslint-plugin-import";
+import jest from "eslint-plugin-jest";
+import jestDom from "eslint-plugin-jest-dom";
+import preferArrowFunctions from "eslint-plugin-prefer-arrow-functions";
+import react from "eslint-plugin-react";
+import reactHooks from "eslint-plugin-react-hooks";
+import testingLibrary from "eslint-plugin-testing-library";
+import typescriptSortKeys from "eslint-plugin-typescript-sort-keys";
+import unusedImports from "eslint-plugin-unused-imports";
+import globals from "globals";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+// TODO migrate to dprint/Biome: https://linear.app/omnidev/issue/OMNI-244/migrate-to-dprintbiome
+
+const eslintConfig = defineConfig([
+  globalIgnores([
+    // ignored by default: `**/node_modules/`, `.git/`
+    "**/build",
+    "**/coverage",
+    "**/generated",
+    "**/examples",
+    "**/storybook-static",
+    "**/*.hbs",
+    // see https://github.com/storybookjs/eslint-plugin-storybook#installation
+    "!**/.storybook",
+  ]),
+  {
+    extends: fixupConfigRules(
+      compat.extends(
+        "plugin:@typescript-eslint/recommended",
+        "plugin:import/recommended",
+        "plugin:import/typescript",
+        "plugin:jest/recommended",
+        "plugin:jest-dom/recommended",
+        "plugin:react/recommended",
+        "plugin:react-hooks/recommended",
+        "plugin:storybook/recommended",
+        "plugin:testing-library/react",
+        "prettier",
+      ),
+    ),
+    plugins: {
+      "@typescript-eslint": fixupPluginRules(typescriptEslint),
+      react: fixupPluginRules(react),
+      import: fixupPluginRules(_import),
+      "typescript-sort-keys": typescriptSortKeys,
+      "unused-imports": unusedImports,
+      "prefer-arrow-functions": preferArrowFunctions,
+      "react-hooks": fixupPluginRules(reactHooks),
+      jest: fixupPluginRules(jest),
+      "jest-dom": fixupPluginRules(jestDom),
+      "testing-library": fixupPluginRules(testingLibrary),
+    },
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.jest,
+      },
+      parser: tsParser,
+      ecmaVersion: "latest",
+      sourceType: "module",
+      parserOptions: {
+        project: "./tsconfig.json",
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+    },
+    settings: {
+      react: {
+        version: "detect",
+      },
+      "import/resolver": {
+        typescript: {},
+      },
+    },
+    rules: {
+      "@typescript-eslint/no-non-null-assertion": "off",
+      "@typescript-eslint/no-empty-object-type": "off",
+      "@typescript-eslint/ban-ts-comment": [
+        "error",
+        {
+          "ts-ignore": "allow-with-description",
+          "ts-nocheck": "allow-with-description",
+        },
+      ],
+      "no-unused-vars": "off",
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          varsIgnorePattern: "^_",
+          argsIgnorePattern: "^_",
+        },
+      ],
+      "@typescript-eslint/no-unused-expressions": [
+        "error",
+        {
+          allowShortCircuit: true,
+          allowTernary: true,
+        },
+      ],
+      "react/react-in-jsx-scope": "off",
+      "react/function-component-definition": [
+        "error",
+        {
+          namedComponents: "arrow-function",
+          unnamedComponents: "arrow-function",
+        },
+      ],
+      "@typescript-eslint/no-explicit-any": "warn",
+      "@typescript-eslint/no-floating-promises": "error",
+      "@typescript-eslint/consistent-type-imports": "error",
+      // TODO enable, extremely slow right now (see https://github.com/import-js/eslint-plugin-import/issues/3047)
+      // "import/no-cycle": "error",
+      "import/no-duplicates": "error",
+      "unused-imports/no-unused-imports": "warn",
+      "import/order": [
+        "error",
+        {
+          alphabetize: {
+            caseInsensitive: true,
+            order: "asc",
+          },
+          groups: [
+            "builtin",
+            "external",
+            ["internal", "unknown", "parent", "sibling", "index", "object"],
+            "type",
+          ],
+          "newlines-between": "always",
+        },
+      ],
+    },
+  },
+]);
+
+export default eslintConfig;