WIP Convert to ESM

oclif/oclif#1016

Stuck on oclif/test#301

bin/dev.js

@@ -0,0 +1,25 @@
+#!/usr/bin/env ts-node
+
+/* eslint-disable node/shebang */
+
+import oclif from '@oclif/core'
+import path from 'node:path'
+import url from 'node:url'
+// eslint-disable-next-line node/no-unpublished-import
+import {register} from 'ts-node'
+
+// In dev mode -> use ts-node and dev plugins
+process.env.NODE_ENV = 'development'
+
+register({
+  project: path.join(path.dirname(url.fileURLToPath(import.meta.url)), '..', 'tsconfig.json'),
+})
+
+// In dev mode, always show stack traces
+oclif.settings.debug = true
+
+// Start the CLI
+oclif
+.run(process.argv.slice(2), import.meta.url)
+.then(oclif.flush)
+.catch(oclif.Errors.handle)

bin/run.js

@@ -0,0 +1,8 @@
+#!/usr/bin/env node
+
+import oclif from '@oclif/core'
+
+oclif
+.run(process.argv.slice(2), import.meta.url)
+.then(oclif.flush)
+.catch(oclif.Errors.handle)

package.json

@@ -7,6 +7,7 @@
     "netlify-git-branch": "./bin/run"
   },
   "bugs": "https://github.com/mrloop/netlify-git-branch/issues",
+  "type": "module",
   "dependencies": {
     "@oclif/command": "1.8.36",
     "@oclif/core": "1.26.2",
@@ -92,7 +93,7 @@
     "posttest": "eslint . --ext .ts --config .eslintrc",
     "prepack": "yarn build && oclif manifest && oclif readme",
     "release": "release-it",
-    "test": "DEBUG=netlify-git-branch:* mocha --forbid-only \"test/**/*.test.ts\" --no-timeout",
+    "test": "DEBUG=netlify-git-branch:* mocha --forbid-only \"test/**/*.test.[jt]s\" --no-timeout",
     "version": "oclif readme && git add README.md"
   },
   "types": "lib/index.d.ts"

test/helpers/init.js

@@ -1,4 +1,4 @@
-const path = require('node:path')
+import path from 'node:path'
 process.env.TS_NODE_PROJECT = path.resolve('test/tsconfig.json')
 process.env.NODE_ENV = 'development'
 

tsconfig.json

@@ -1,14 +1,19 @@
 {
   "compilerOptions": {
+    "composite": true,
     "declaration": true,
     "importHelpers": true,
-    "module": "commonjs",
+    "module": "ES2020",
+    "moduleResolution": "node",
     "outDir": "lib",
     "rootDir": "src",
     "strict": true,
     "target": "es2017"
   },
   "include": [
     "src/**/*"
-  ]
+  ],
+  "ts-node": {
+    "esm": true
+  }
 }