Convert plugin to TypeScript

.eslintignore

@@ -0,0 +1,2 @@
+/dist
+/node_modules

.eslintrc.js

@@ -1,19 +1,23 @@
 module.exports = {
+  root: true,
+  parser: "@typescript-eslint/parser",
   env: {
     node: true,
     es6: true,
     "jest/globals": true,
   },
-  parserOptions: {
-    ecmaVersion: 9,
-  },
-  plugins: ["jest"],
+  plugins: ["@typescript-eslint", "jest"],
   extends: [
     "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
     "plugin:jest/recommended",
     "plugin:prettier/recommended",
   ],
   rules: {
     "jest/expect-expect": ["off"],
+    "@typescript-eslint/no-namespace": ["off"],
+
+    // Rules to disable in V5 port
+    "@typescript-eslint/no-var-requires": ["off"],
   },
 };

.gitignore

@@ -1,2 +1,6 @@
-node_modules
-.idea
+/.git
+/.idea
+/.yarn
+/.yarnrc.yml
+/dist
+/node_modules

__tests__/integration/queries.test.js

@@ -29,10 +29,10 @@ beforeAll(() => {
     // need and wait for them to be created in parallel.
     const [normal, columnAggregates] = await Promise.all([
       createPostGraphileSchema(pgClient, ["p"], {
-        appendPlugins: [require("../../index.js")],
+        appendPlugins: [require("../../dist/index.js")],
       }),
       createPostGraphileSchema(pgClient, ["p"], {
-        appendPlugins: [require("../../index.js")],
+        appendPlugins: [require("../../dist/index.js")],
         graphileBuildOptions: {
           orderByRelatedColumnAggregates: true,
         },

__tests__/integration/schema/columnAggregates.test.js

@@ -3,7 +3,7 @@ const core = require("./core");
 test(
   "prints a schema with the order-by-related plugin",
   core.test(["p"], {
-    appendPlugins: [require("../../../index.js")],
+    appendPlugins: [require("../../../dist/index.js")],
     disableDefaultMutations: true,
     legacyRelations: "omit",
     graphileBuildOptions: {

__tests__/integration/schema/ignoreIndexes.test.js

@@ -3,7 +3,7 @@ const core = require("./core");
 test(
   "prints a schema with `ignoreIndexes: false`",
   core.test(["p"], {
-    appendPlugins: [require("../../../index.js")],
+    appendPlugins: [require("../../../dist/index.js")],
     disableDefaultMutations: true,
     legacyRelations: "omit",
     ignoreIndexes: false,

__tests__/integration/schema/orderByRelated.test.js

@@ -3,7 +3,7 @@ const core = require("./core");
 test(
   "prints a schema with the order-by-related plugin",
   core.test(["p"], {
-    appendPlugins: [require("../../../index.js")],
+    appendPlugins: [require("../../../dist/index.js")],
     disableDefaultMutations: true,
     legacyRelations: "omit",
   })

package.json

@@ -2,15 +2,16 @@
   "name": "@graphile-contrib/pg-order-by-related",
   "version": "1.0.0",
   "description": "Order by related columns on PostGraphile connections",
-  "main": "index.js",
-  "types": "index.d.ts",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "format": "prettier --ignore-path ./.eslintignore",
     "format:all": "yarn format '**/*.{json,md,html,js,jsx,ts,tsx}'",
     "format:fix": "yarn format:all --write",
     "format:check": "yarn format:all --list-different",
-    "lint": "eslint . --ext .js,.jsx",
-    "test": "scripts/test"
+    "lint": "eslint . --ext .js,.jsx,.ts,.tsx",
+    "prepack": "tsc",
+    "test": "tsc && scripts/test"
   },
   "repository": {
     "type": "git",
@@ -22,6 +23,9 @@
     "url": "https://github.com/graphile-contrib/pg-order-by-related/issues"
   },
   "devDependencies": {
+    "@tsconfig/node18": "^18.2.4",
+    "@typescript-eslint/eslint-plugin": "5.59.0",
+    "@typescript-eslint/parser": "5.59.0",
     "eslint": "8.28.0",
     "eslint-config-prettier": "8.5.0",
     "eslint-plugin-jest": "27.1.6",
@@ -30,13 +34,13 @@
     "jest": "29.3.1",
     "pg": "8.8.0",
     "postgraphile-core": "4.12.3",
-    "prettier": "2.8.0"
+    "prettier": "2.8.0",
+    "typescript": "^5.7.2"
   },
   "jest": {
     "testRegex": "__tests__/.*\\.test\\.js$"
   },
   "files": [
-    "index.js",
-    "index.d.ts"
+    "dist"
   ]
 }

index.js → src/index.ts

@@ -1,14 +1,19 @@
-function PgOrderByRelatedPlugin(builder, { orderByRelatedColumnAggregates }) {
+import type { Inflection, Plugin } from "graphile-build";
+
+const PgOrderByRelatedPlugin: Plugin = (
+  builder,
+  { orderByRelatedColumnAggregates }
+) => {
   builder.hook("build", (build) => {
-    const pkg = require("./package.json");
+    const pkg = require("../package.json");
 
     // Check dependencies
     if (!build.versions) {
       throw new Error(
         `Plugin ${pkg.name}@${pkg.version} requires graphile-build@^4.1.0 in order to check dependencies (current version: ${build.graphileBuildVersion})`
       );
     }
-    const depends = (name, range) => {
+    const depends = (name: string, range: string) => {
       if (!build.hasVersion(name, range)) {
         throw new Error(
           `Plugin ${pkg.name}@${pkg.version} requires ${name}@${range} (${
@@ -29,14 +34,21 @@ function PgOrderByRelatedPlugin(builder, { orderByRelatedColumnAggregates }) {
 
   builder.hook("inflection", (inflection) => {
     return Object.assign(inflection, {
-      orderByRelatedColumnEnum(attr, ascending, foreignTable, keyAttributes) {
+      orderByRelatedColumnEnum(
+        this: Inflection,
+        attr,
+        ascending,
+        foreignTable,
+        keyAttributes
+      ) {
         return `${this.constantCase(
           `${this._singularizedTableName(foreignTable)}-by-${keyAttributes
             .map((keyAttr) => this._columnName(keyAttr))
             .join("-and-")}`
         )}__${this.orderByColumnEnum(attr, ascending)}`;
       },
       orderByRelatedComputedColumnEnum(
+        this: Inflection,
         pseudoColumnName,
         proc,
         ascending,
@@ -54,7 +66,12 @@ function PgOrderByRelatedPlugin(builder, { orderByRelatedColumnAggregates }) {
           ascending
         )}`;
       },
-      orderByRelatedCountEnum(ascending, foreignTable, keyAttributes) {
+      orderByRelatedCountEnum(
+        this: Inflection,
+        ascending,
+        foreignTable,
+        keyAttributes
+      ) {
         return `${this.constantCase(
           `${this.pluralize(
             this._singularizedTableName(foreignTable)
@@ -64,6 +81,7 @@ function PgOrderByRelatedPlugin(builder, { orderByRelatedColumnAggregates }) {
         )}__${this.constantCase(`count-${ascending ? "asc" : "desc"}`)}`;
       },
       orderByRelatedColumnAggregateEnum(
+        this: Inflection,
         attr,
         ascending,
         foreignTable,
@@ -514,9 +532,11 @@ function PgOrderByRelatedPlugin(builder, { orderByRelatedColumnAggregates }) {
     const pseudoColumnName = proc.name.substr(table.name.length + 1);
     return { argTypes, pseudoColumnName };
   }
-}
+};
+
+export default PgOrderByRelatedPlugin;
 
+// HACK: for TypeScript/Babel import
 module.exports = PgOrderByRelatedPlugin;
-// Hacks for TypeScript/Babel import
 module.exports.default = PgOrderByRelatedPlugin;
 Object.defineProperty(module.exports, "__esModule", { value: true });

tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "extends": "@tsconfig/node18/tsconfig.json",
+  "compilerOptions": {
+    "noImplicitAny": false,
+    "rootDir": "./src",
+    "outDir": "./dist",
+    "declarationDir": "dist",
+    "declaration": true,
+    "sourceMap": true
+  },
+  "include": ["src"],
+  "exclude": ["node_modules"]
+}