chore: convert node-flags and run-option-metadata to ESM

bin/mocha.js

@@ -20,7 +20,7 @@ import {
   unparseNodeFlags,
   isNodeFlag,
   impliesNoTimeouts,
-} from "../lib/cli/node-flags.cjs";
+} from "../lib/cli/node-flags.js";
 import { fileURLToPath } from "node:url";
 
 const debug = d.debug("mocha:cli:mocha");

docs/src/content/docs/running/cli.mdx

@@ -5,7 +5,7 @@ description: Running Mocha in your terminal.
 
 Running `npx mocha --help` will show the full list of available commands:
 
-{/* This output is defined in lib/cli/cli.js and lib/cli/run-option-metadata.cjs */}
+{/* This output is defined in lib/cli/cli.js and lib/cli/run-option-metadata.js */}
 
 ```plaintext
 Usage: mocha [spec..]

lib/cli/cli.js

@@ -15,7 +15,7 @@ import pc from "picocolors";
 import { logSymbols } from "../utils.cjs";
 
 import packageJson from "../../package.json" with { type: "json" };
-import { getRunOptionDefinitions } from "./run-option-metadata.cjs";
+import { getRunOptionDefinitions } from "./run-option-metadata.js";
 
 const __filename = fileURLToPath(import.meta.url);
 

lib/cli/node-flags.cjs → lib/cli/node-flags.js

@@ -1,18 +1,14 @@
-"use strict";
-
 /**
  * Some settings and code related to Mocha's handling of Node.js/V8 flags.
  * @private
  * @module
  */
 
-const inspector = require("node:inspector");
+import inspector from "node:inspector";
+import { isMochaFlag, stripLeadingDashes } from "./run-option-metadata.js";
+import { unparseNodeFlags } from "./unparse-args.js";
+
 const nodeFlags = process.allowedNodeEnvironmentFlags;
-const {
-  isMochaFlag,
-  stripLeadingDashes,
-} = require("./run-option-metadata.cjs");
-const { unparseNodeFlags } = require("./unparse-args.js");
 
 /**
  * These flags are considered "debug" flags.
@@ -79,7 +75,4 @@ function isInspectorActive() {
   return inspector.url() !== undefined;
 }
 
-exports.isNodeFlag = isNodeFlag;
-exports.impliesNoTimeouts = impliesNoTimeouts;
-exports.isInspectorActive = isInspectorActive;
-exports.unparseNodeFlags = unparseNodeFlags;
+export { isNodeFlag, impliesNoTimeouts, isInspectorActive, unparseNodeFlags };

lib/cli/parse-args.js

@@ -11,8 +11,8 @@ import {
   isMochaFlag,
   stripLeadingDashes,
   types,
-} from "./run-option-metadata.cjs";
-import { isNodeFlag } from "./node-flags.cjs";
+} from "./run-option-metadata.js";
+import { isNodeFlag } from "./node-flags.js";
 import debugModule from "debug";
 
 const debug = debugModule("mocha:cli:parse-args");

lib/cli/run-option-metadata.cjs → lib/cli/run-option-metadata.js

@@ -1,5 +1,3 @@
-"use strict";
-
 /**
  * Metadata about various options of the `run` command
  * @see module:lib/cli/run
@@ -209,9 +207,11 @@ const expectedTypeForFlag = (flag) => {
   );
 };
 
-exports.types = types;
-exports.aliases = aliases;
-exports.getRunOptionDefinitions = getRunOptionDefinitions;
-exports.isMochaFlag = isMochaFlag;
-exports.expectedTypeForFlag = expectedTypeForFlag;
-exports.stripLeadingDashes = stripLeadingDashes;
+export {
+  types,
+  aliases,
+  getRunOptionDefinitions,
+  isMochaFlag,
+  expectedTypeForFlag,
+  stripLeadingDashes,
+};

lib/cli/run.cjs

@@ -20,7 +20,7 @@ const {
   validateLegacyPlugin,
   runMocha,
 } = require("./run-helpers.cjs");
-const { isInspectorActive } = require("./node-flags.cjs");
+const { isInspectorActive } = require("./node-flags.js");
 const { ONE_AND_DONES } = require("./one-and-dones.js");
 const debug = require("debug")("mocha:cli:run");
 

test/node-unit/cli/mocha-flags.spec.cjs

@@ -5,7 +5,7 @@ const {
   types,
   expectedTypeForFlag,
   getRunOptionDefinitions,
-} = require("../../../lib/cli/run-option-metadata.cjs");
+} = require("../../../lib/cli/run-option-metadata.js");
 
 describe("mocha-flags", function () {
   describe("expectedTypeForFlag()", function () {

test/node-unit/cli/node-flags.spec.cjs

@@ -8,9 +8,9 @@ const {
   impliesNoTimeouts,
   isInspectorActive,
   unparseNodeFlags,
-} = require("../../../lib/cli/node-flags.cjs");
+} = require("../../../lib/cli/node-flags.js");
 
-const { isMochaFlag } = require("../../../lib/cli/run-option-metadata.cjs");
+const { isMochaFlag } = require("../../../lib/cli/run-option-metadata.js");
 
 describe("node-flags", function () {
   describe("isNodeFlag()", function () {

test/node-unit/cli/run.spec.cjs

@@ -3,7 +3,7 @@
 const {
   getRunOptionDefinitions,
   types,
-} = require("../../../lib/cli/run-option-metadata.cjs");
+} = require("../../../lib/cli/run-option-metadata.js");
 const { validateRunOptions } = require("../../../lib/cli/run.cjs");
 
 describe("command", function () {