From 2e618fe89443ecc9f4020d129691ebbba833c1c1 Mon Sep 17 00:00:00 2001
From: literat <tomas@litera.me>
Date: Tue, 17 Dec 2024 11:41:54 +0100
Subject: [PATCH] fixup! Feat(ci): Introduce posting changelog into the Slack
 channel

---
 scripts/post-changelog.mjs | 97 ++++++++++++++++++++++++++++++--------
 1 file changed, 78 insertions(+), 19 deletions(-)

diff --git a/scripts/post-changelog.mjs b/scripts/post-changelog.mjs
index 447de79bee..9381424fda 100644
--- a/scripts/post-changelog.mjs
+++ b/scripts/post-changelog.mjs
@@ -1,20 +1,36 @@
+/* eslint-disable import/no-unresolved */
+/* eslint-disable import/no-extraneous-dependencies */
 /* eslint-disable no-console */
-import { $, fetch, argv } from 'zx';
 import dotenv from 'dotenv-safe';
-import slackifyMarkdown from 'slackify-markdown';
-import { simpleGit } from 'simple-git';
 import gitDiffParser from 'gitdiff-parser';
+import { simpleGit } from 'simple-git';
+import slackifyMarkdown from 'slackify-markdown';
+import { $, fetch, argv } from 'zx';
 
 const COLOR_CORE = '#00A58E';
 const PACKAGES = ['web', 'web-react', 'web-twig', 'design-tokens', 'icons', 'codemods', 'analytics'];
 const SLACK_CHANGELOG_WEBHOOK_URL = process.env.SLACK_CHANGELOG_WEBHOOK_URL ?? '';
 
+/**
+ * Generates a title for the given package.
+ *
+ * @param {string} pkg - The package name.
+ * @returns {string} The generated title.
+ */
 function getTitle(pkg) {
   return `🚀 New ${pkg
     .split('-')
     .map((part) => part.charAt(0).toUpperCase() + part.slice(1))
     .join(' ')} package release`;
 }
+
+/**
+ * Sends the content to the specified webhook URL.
+ *
+ * @param {object} params - The parameters.
+ * @param {object} params.content - The content to send.
+ * @param {string} params.webhookUrl - The webhook URL to send the content to.
+ */
 async function sendToWebhook({ content, webhookUrl }) {
   await fetch(webhookUrl, {
     method: 'POST',
@@ -31,14 +47,23 @@ async function sendToWebhook({ content, webhookUrl }) {
     });
 }
 
-function format(str, package_, prefix = '@lmc-eu') {
+/**
+ * Formats the changelog string with the given package name and prefix.
+ *
+ * @param {string} str - The changelog string to format.
+ * @param {string} packageName - The name of the package.
+ * @param {string} prefix - The prefix to use for the package.
+ *
+ * @returns {string} The formatted changelog string.
+ */
+function format(str, packageName, prefix = '@lmc-eu') {
   const output = str
     .replace(
       /^#+ /,
-      `# 📦 ${package_
+      `# 📦 ${packageName
         .split('-')
         .map((part) => part.charAt(0).toUpperCase() + part.slice(1))
-        .join(' ')} \`${prefix}/spirit-${package_}\` `,
+        .join(' ')} \`${prefix}/spirit-${packageName}\` `,
     )
     .replace('Bug Fixes', '🐛 Bug Fixes')
     .replace('Features', '⚡ Features')
@@ -54,6 +79,12 @@ function format(str, package_, prefix = '@lmc-eu') {
   return output;
 }
 
+/**
+ * Extracts the changelog content from the given diff files.
+ *
+ * @param {Array} files - The diff files to extract the changelog from.
+ * @returns {string} The extracted changelog content.
+ */
 function getChangelogFromDiff(files) {
   // Only one file as we're only looking at the changelog
   const versionPattern = /<a name=".*"><\/a>/;
@@ -67,15 +98,36 @@ function getChangelogFromDiff(files) {
   return changelog;
 }
 
+/**
+ * Gets the diff for the given tag and path.
+ *
+ * @param {string} tag - The tag to get the diff for.
+ * @param {string} path - The path to get the diff for.
+ * @returns {Promise<string>} The diff output.
+ */
 function getDiff(tag, path) {
   return simpleGit().show([tag, path]);
 }
 
-function changelogPath(package_) {
-  return `packages/${package_}/CHANGELOG.md`;
+/**
+ * Returns the changelog path for the given package name.
+ *
+ * @param {string} packageName - The name of the package.
+ * @returns {string} The changelog path.
+ */
+function changelogPath(packageName) {
+  return `packages/${packageName}/CHANGELOG.md`;
 }
 
-async function postSlackNotification(changelog, package_) {
+/**
+ * Posts a Slack notification with the given changelog.
+ *
+ * @param {string} changelog - The changelog content to post.
+ * @param {string} packageName - The name of the package.
+ *
+ * @returns {Promise<void>}
+ */
+async function postSlackNotification(changelog, packageName) {
   try {
     $.verbose = false;
     const res = await sendToWebhook({
@@ -83,7 +135,7 @@ async function postSlackNotification(changelog, package_) {
       content: {
         attachments: [
           {
-            title: getTitle(package_),
+            title: getTitle(packageName),
             text: changelog,
             color: COLOR_CORE,
           },
@@ -97,9 +149,12 @@ async function postSlackNotification(changelog, package_) {
     console.error(err);
   }
 
-  return undefined;
+  return null;
 }
 
+/**
+ * Configures the webhook URL from the environment variables.
+ */
 async function configureWebhookURL() {
   try {
     dotenv.config({
@@ -113,27 +168,31 @@ async function configureWebhookURL() {
   }
 }
 
-async function publishChangelog(package_) {
+/**
+ * Publish the changelog for the given npm package.
+ *
+ * @param {string} npmPackage - The name of the npm package.
+ */
+async function publishChangelog(npmPackage) {
   try {
     await simpleGit().fetch(['origin', 'main', '--tags']);
     const tags = await simpleGit().tags({ '--sort': '-taggerdate' });
-    console.log(tags.latest);
-    const diff = await getDiff(tags.latest ?? '', changelogPath(package_));
+    const diff = await getDiff(tags.latest ?? '', changelogPath(npmPackage));
     const files = gitDiffParser.parse(diff);
     if (files.length === 0) {
-      console.log(`No changes in ${package_}`);
+      console.log(`No changes in ${npmPackage}`);
 
       return;
     }
     const changelog = getChangelogFromDiff(files);
-    const formattedChangelog = format(changelog, package_);
+    const formattedChangelog = format(changelog, npmPackage);
     const slackifiedChangelog = slackifyMarkdown(formattedChangelog);
 
     if (argv.dry) {
       console.info(formattedChangelog);
     } else {
       await configureWebhookURL();
-      await postSlackNotification(slackifiedChangelog, package_);
+      await postSlackNotification(slackifiedChangelog, npmPackage);
     }
   } catch (err) {
     console.error(err);
@@ -143,8 +202,8 @@ async function publishChangelog(package_) {
 
 (async () => {
   await Promise.all(
-    PACKAGES.map(async (package_) => {
-      await publishChangelog(package_);
+    PACKAGES.map(async (npmPackage) => {
+      await publishChangelog(npmPackage);
     }),
   );
   process.exit(0);