feat: switched to ESM

Author: CMCDragonkai

.eslintrc

@@ -7,19 +7,18 @@
     "jest": true
   },
   "parser": "@typescript-eslint/parser",
-  "extends": [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/recommended",
-    "plugin:prettier/recommended",
-    "prettier"
-  ],
-  "plugins": [
-    "import"
-  ],
   "parserOptions": {
     "project": "tsconfig.json",
     "sourceType": "module"
   },
+  "plugins": [
+    "import"
+  ],
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:prettier/recommended"
+  ],
   "rules": {
     "linebreak-style": ["error", "unix"],
     "no-empty": 1,

.github/workflows/codesee-arch-diagram.yml

@@ -1,8 +1,5 @@
 # js-contexts
 
-staging:[![pipeline status](https://gitlab.com/MatrixAI/open-source/js-contexts/badges/staging/pipeline.svg)](https://gitlab.com/MatrixAI/open-source/js-contexts/commits/staging)
-master:[![pipeline status](https://gitlab.com/MatrixAI/open-source/js-contexts/badges/master/pipeline.svg)](https://gitlab.com/MatrixAI/open-source/js-contexts/commits/master)
-
 Asynchronous contexts.
 
 ## Installation
@@ -13,15 +10,15 @@ npm install --save @matrixai/contexts
 
 ## Development
 
-Run `nix-shell`, and once you're inside, you can use:
+Run `nix develop`, and once you're inside, you can use:
 
 ```sh
 # install (or reinstall packages from package.json)
 npm install
 # build the dist
 npm run build
 # run the repl (this allows you to import from ./src)
-npm run ts-node
+npm run tsx
 # run the tests
 npm run test
 # lint the source code

.npmrc

@@ -0,0 +1,45 @@
+{
+  inputs = {
+    nixpkgs-matrix = {
+      type = "indirect";
+      id = "nixpkgs-matrix";
+    };
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { nixpkgs-matrix, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs-matrix.legacyPackages.${system};
+
+        shell = { ci ? false }:
+          with pkgs;
+          mkShell {
+            nativeBuildInputs = [ nodejs_20 shellcheck gitAndTools.gh ];
+            NIX_DONT_SET_RPATH = true;
+            NIX_NO_SELF_RPATH = true;
+            shellHook = ''
+              echo "Entering $(npm pkg get name)"
+              set -o allexport
+              . ./.env
+              set +o allexport
+              set -v
+              ${lib.optionalString ci ''
+                set -o errexit
+                set -o nounset
+                set -o pipefail
+                shopt -s inherit_errexit
+              ''}
+              mkdir --parents "$(pwd)/tmp"
+              export PATH="$(pwd)/dist/bin:$(npm root)/.bin:$PATH"
+              npm install --ignore-scripts
+              set +v
+            '';
+          };
+      in {
+        devShells = {
+          default = shell { ci = false; };
+          ci = shell { ci = true; };
+        };
+      });
+}

README.md

@@ -1,18 +1,16 @@
-const path = require('path');
-const { pathsToModuleNameMapper } = require('ts-jest');
-const { compilerOptions } = require('./tsconfig');
+import path from 'node:path';
+import url from 'node:url';
+import tsconfigJSON from './tsconfig.json' assert { type: "json" };
 
-const moduleNameMapper = pathsToModuleNameMapper(compilerOptions.paths, {
-  prefix: '<rootDir>/src/',
-});
+const projectPath = path.dirname(url.fileURLToPath(import.meta.url));
 
 // Global variables that are shared across the jest worker pool
 // These variables must be static and serializable
 const globals = {
   // Absolute directory to the project root
-  projectDir: __dirname,
+  projectDir: projectPath,
   // Absolute directory to the test root
-  testDir: path.join(__dirname, 'tests'),
+  testDir: path.join(projectPath, 'tests'),
   // Default asynchronous test timeout
   defaultTimeout: 20000,
   // Timeouts rely on setTimeout which takes 32 bit numbers
@@ -24,7 +22,7 @@ const globals = {
 // They can however receive the process environment
 // Use `process.env` to set variables
 
-module.exports = {
+const config = {
   testEnvironment: 'node',
   verbose: true,
   collectCoverage: false,
@@ -40,10 +38,10 @@ module.exports = {
           parser: {
             syntax: "typescript",
             tsx: true,
-            decorators: compilerOptions.experimentalDecorators,
+            decorators: tsconfigJSON.compilerOptions.experimentalDecorators,
             dynamicImport: true,
           },
-          target: compilerOptions.target.toLowerCase(),
+          target: tsconfigJSON.compilerOptions.target.toLowerCase(),
           keepClassNames: true,
         },
       }
@@ -77,5 +75,10 @@ module.exports = {
     'jest-extended/all',
     '<rootDir>/tests/setupAfterEnv.ts'
   ],
-  moduleNameMapper: moduleNameMapper,
+  moduleNameMapper: {
+    "^(\\.{1,2}/.*)\\.js$": "$1",
+  },
+  extensionsToTreatAsEsm: ['.ts', '.tsx', '.mts'],
 };
+
+export default config;