feat: support sfdx plugins with release notes or changelog

Author: Your Name

messages/display.js

@@ -3,6 +3,7 @@ module.exports = {
   flags: {
     version: 'CLI version or tag for which to display release notes.',
     hook: 'This hidden parameter is used in post install or update hooks.',
+    plugin: 'Plugin name for which to display release notes.',
   },
   examples: [
     `Display release notes for the currently installed CLI version:

src/commands/info/releasenotes/display.ts

@@ -39,6 +39,13 @@ export default class Display extends SfdxCommand {
 
   public static examples = messages.getMessage('examples', [Display.helpers.join(', ')]).split(os.EOL);
 
+  public static args = [
+    {
+      name: 'plugin',
+      description: messages.getMessage('flags.plugin'),
+    },
+  ];
+
   protected static flagsConfig = {
     version: flags.string({
       char: 'v',
@@ -66,9 +73,15 @@ export default class Display extends SfdxCommand {
     }
 
     try {
-      const installedVersion = this.config.pjson.version;
+      const plugin = (this.args.plugin as string)
+        ? this.config.plugins.filter((p) => p.name === (this.args.plugin as string))[0]
+        : this.config;
+
+      if (!plugin) throw new Error(`No plugin '${this.args.plugin as string}' found`);
+
+      const installedVersion = plugin.pjson.version;
 
-      const infoConfig = await getInfoConfig(this.config.root);
+      const infoConfig = await getInfoConfig(plugin.root);
 
       const { distTagUrl, releaseNotesPath, releaseNotesFilename } = infoConfig.releasenotes;
 
@@ -86,15 +99,15 @@ export default class Display extends SfdxCommand {
         renderer: new TerminalRenderer({ emoji: false }),
       });
 
-      this.ux.log(marked.parse(`# Release notes for '${this.config.bin}':`));
+      this.ux.log(marked.parse(`# Release notes for '${plugin.name}':`));
 
       this.ux.log(marked.parser(tokens));
 
       if (isHook) {
         if (env.getBoolean(HIDE_FOOTER)) {
           await Lifecycle.getInstance().emitTelemetry({ eventName: 'FOOTER_HIDDEN' });
         } else {
-          const footer = messages.getMessage('footer', [this.config.bin, releaseNotesPath, HIDE_NOTES, HIDE_FOOTER]);
+          const footer = messages.getMessage('footer', [plugin.name, releaseNotesPath, HIDE_NOTES, HIDE_FOOTER]);
           this.ux.log(marked.parse(footer));
         }
       }

src/shared/parseReleaseNotes.ts

@@ -21,7 +21,7 @@ const parseReleaseNotes = (notes: string, version: string, baseUrl: string): mar
 
   const tokens = parsed.filter((token) => {
     // TODO: Could make header depth (2) a setting in oclif.info.releasenotes
-    if (token.type === 'heading' && token.depth === 2) {
+    if (token.type === 'heading' && token.depth <= 2) {
       if (regexp.exec(token.text)) {
         found = true;
 

test/commands/info/releasenotes/display.test.ts

@@ -46,7 +46,7 @@ describe('info:releasenotes:display', () => {
   }
 
   const runDisplayCmd = async (params: string[]) => {
-    oclifConfigStub.bin = 'sfdx';
+    oclifConfigStub.name = 'sfdx-cli';
 
     const cmd = new TestDisplay(params, oclifConfigStub);
 
@@ -166,7 +166,7 @@ describe('info:releasenotes:display', () => {
   it('logs logs a header with cli bin', async () => {
     await runDisplayCmd([]);
 
-    expect(uxLogStub.args[0][0]).to.contain("# Release notes for 'sfdx':");
+    expect(uxLogStub.args[0][0]).to.contain("# Release notes for 'sfdx-cli':");
   });
 
   it('calls getReleaseNotes with passed version', async () => {