add additionalChangelog functionality + tests

packages/plugin-changelog/src/index.test.ts

@@ -60,6 +60,14 @@ stuff
 ### Subsection 2
 * New entry 4
 * New entry 5`,
+	changelog_testParseAdditionalChangelog1Without: `## **WORK IN PROGRESS** · Doomsday release
+* New entry 1
+* New entry 2`,
+	changelog_testParseAdditionalChangelog1With: `## **WORK IN PROGRESS** · Doomsday release
+* New entry 1
+* New entry 2
+* first Changelog entry added via cli-option
+* another CLI-Option Changelog entry`,
 };
 
 describe("Changelog plugin", () => {
@@ -266,6 +274,88 @@ ${fixtures.changelog_subsectionsParse2}`,
 * New entry 2`);
 		});
 
+		it("parses all changelog entries correctly if additionalChangelog is set", async () => {
+			const changelogPlugin = new ChangelogPlugin();
+			const context = createMockContext({
+				plugins: [changelogPlugin],
+				cwd: testFSRoot,
+				argv: {
+					additionalChangelog: '* first Changelog entry added via cli-option\n* another CLI-Option Changelog entry',
+				}
+			});
+
+			await testFS.create({
+				"CHANGELOG.md": `${fixtures.changelog_testParseHeader}
+${fixtures.changelog_testParseAdditionalChangelog1Without}
+
+${fixtures.changelog_testParse2}
+
+${fixtures.changelog_testParse3}`,
+			});
+
+			await changelogPlugin.executeStage(context, DefaultStages.check);
+			expect(context.errors).toHaveLength(0);
+
+			const headline = context.getData<string[]>("changelog_before");
+			expect(headline).toBe(fixtures.changelog_testParseHeader + "\n");
+
+			const entries = context.getData<string[]>("changelog_entries");
+			expect(entries).toEqual([
+				fixtures.changelog_testParseAdditionalChangelog1With,
+				fixtures.changelog_testParse2,
+				fixtures.changelog_testParse3,
+			]);
+
+			const footer = context.getData<string[]>("changelog_after");
+			expect(footer).toBe("");
+
+			const currentChangelog = context.getData<string[]>("changelog_new");
+			expect(currentChangelog).toBe(`* New entry 1
+* New entry 2
+* first Changelog entry added via cli-option
+* another CLI-Option Changelog entry`);
+		});
+
+		it("even if no WIP section exists before", async () => {
+			const changelogPlugin = new ChangelogPlugin();
+			const context = createMockContext({
+				plugins: [changelogPlugin],
+				cwd: testFSRoot,
+				argv: {
+					additionalChangelog: '* first Changelog entry added via cli-option\n* another CLI-Option Changelog entry',
+				}
+			});
+
+			await testFS.create({
+				"CHANGELOG.md": `${fixtures.changelog_testParseHeader}
+${fixtures.changelog_testParse2}
+
+${fixtures.changelog_testParse3}`,
+			});
+
+			await changelogPlugin.executeStage(context, DefaultStages.check);
+			expect(context.errors).toHaveLength(0);
+
+			const headline = context.getData<string[]>("changelog_before");
+			expect(headline).toBe(fixtures.changelog_testParseHeader + "\n");
+
+			const entries = context.getData<string[]>("changelog_entries");
+			expect(entries).toEqual([
+				`## **WORK IN PROGRESS**
+* first Changelog entry added via cli-option
+* another CLI-Option Changelog entry`,
+				fixtures.changelog_testParse2,
+				fixtures.changelog_testParse3,
+			]);
+
+			const footer = context.getData<string[]>("changelog_after");
+			expect(footer).toBe("");
+
+			const currentChangelog = context.getData<string[]>("changelog_new");
+			expect(currentChangelog).toBe(`* first Changelog entry added via cli-option
+* another CLI-Option Changelog entry`);
+		});
+
 		it("Detects final newlines correctly", async () => {
 			const changelogPlugin = new ChangelogPlugin();
 			const context = createMockContext({

packages/plugin-changelog/src/index.ts

@@ -113,6 +113,11 @@ class ChangelogPlugin implements Plugin {
 				description: `Add an empty placeholder to the changelog after a release.`,
 				default: false,
 			},
+			additionalChangelog: {
+				alias: ["additional-changelog"],
+				type: "string",
+				description: `Add additional changelog entry/entries to the release.`
+			}
 		});
 	}
 
@@ -183,7 +188,17 @@ class ChangelogPlugin implements Plugin {
 		// But we only output the primary one
 		const changelogPlaceholder = `${changelogPlaceholderPrefix} ${changelogMarkers[0]}`;
 
+		if(context.argv.additionalChangelog) {
+			let currentChangelogsIndex = entries.findIndex((e) => getPlaceholderRegex().test(e));
+			if (currentChangelogsIndex == -1) {
+				entries.unshift('## **WORK IN PROGRESS**');
+				currentChangelogsIndex = 0
+			}
+			entries[currentChangelogsIndex] += `\n${context.argv.additionalChangelog}`;
+		}
+
 		const currentChangelogs = entries.filter((e) => getPlaceholderRegex().test(e));
+
 		switch (currentChangelogs.length) {
 			case 0:
 				context.cli.error(