refactor: migrate to esm

BREAKING-CHANGE: the minimum supported version of semantic-release is
now v20.

Author: felipecrs

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: volta-cli/action@v4
@@ -45,7 +45,7 @@ jobs:
           The release notes are:
           ${{ needs.get-next-version.outputs.new-release-notes }}
           EOF
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: volta-cli/action@v4

index.js

@@ -1,15 +1,15 @@
 // @ts-check
 
-const { env } = require("node:process");
-const { appendFileSync } = require("node:fs");
-const { EOL } = require("node:os");
-const { randomUUID } = require("node:crypto");
+import process from "node:process";
+import { appendFile } from "node:fs/promises";
+import { EOL } from "node:os";
+import { randomUUID } from "node:crypto";
 
-function exportData(name, value, { log = true, escape = false } = {}) {
+async function exportData(name, value, { log = true, escape = false } = {}) {
   if (log) {
     console.log(`semantic-release-export-data: ${name}=${value}`);
   }
-  if (env.GITHUB_OUTPUT) {
+  if (process.env.GITHUB_OUTPUT) {
     let output;
     if (escape) {
       // Borrowed from https://github.com/actions/toolkit/blob/ddc5fa4ae84a892bfa8431c353db3cf628f1235d/packages/core/src/file-command.ts#L27  
@@ -18,22 +18,17 @@ function exportData(name, value, { log = true, escape = false } = {}) {
     } else {
       output = `${name}=${value}${EOL}`;
     }
-    appendFileSync(env.GITHUB_OUTPUT, output);
+    await appendFile(process.env.GITHUB_OUTPUT, output);
   }
 }
 
-function verifyConditions() {
-  exportData("new-release-published", "false");
+export async function verifyConditions() {
+  await exportData("new-release-published", "false");
 }
 
-function generateNotes(_pluginConfig, { nextRelease }) {
-  exportData("new-release-published", "true");
-  exportData("new-release-version", nextRelease.version);
-  exportData("new-release-git-tag", nextRelease.gitTag);
-  exportData("new-release-notes", nextRelease.notes, { log: false, escape: true });
+export async function generateNotes(_pluginConfig, { nextRelease }) {
+  await exportData("new-release-published", "true");
+  await exportData("new-release-version", nextRelease.version);
+  await exportData("new-release-git-tag", nextRelease.gitTag);
+  await exportData("new-release-notes", nextRelease.notes, { log: false, escape: true });
 }
-
-module.exports = {
-  verifyConditions,
-  generateNotes,
-};