feat: upgrade to node 24 + migrate to bun

.github/dependabot.yaml

@@ -1,29 +1,29 @@
 version: 2
 updates:
-  - package-ecosystem: 'github-actions'
+  - package-ecosystem: "github-actions"
     directory: /
     schedule:
       interval: weekly
     groups:
       actions-deps:
         patterns:
-          - '*'
+          - "*"
 
-  - package-ecosystem: npm
+  - package-ecosystem: bun
     directory: /
     schedule:
       interval: monthly
     groups:
       security-updates:
         applies-to: security-updates
         patterns:
-          - '*'
+          - "*"
       major-updates:
         applies-to: version-updates
         update-types:
-          - 'major'
+          - "major"
       minor-updates:
         applies-to: version-updates
         update-types:
-          - 'minor'
-          - 'patch'
+          - "minor"
+          - "patch"

.github/workflows/build.yml

@@ -11,13 +11,12 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - uses: actions/setup-node@v6
+      - uses: oven-sh/setup-bun@v2
         with:
-          node-version: 22
-          cache: "npm"
+          bun-version: 1.3.11
 
       - name: Install dependencies
-        run: npm install
+        run: bun install
 
       - name: Run all checks
-        run: npm run all
+        run: bun run all

.github/workflows/update-tags.yaml

@@ -0,0 +1,26 @@
+name: "Update aggregate tags"
+on:
+  push:
+    tags:
+      - "v*.*"
+
+jobs:
+  retag:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - name: Calculate short tag name
+        id: calculate_short_tag
+        run: |
+          TRUNC_VER=$(echo ${{ github.ref_name }} | cut -d '.' -f 1)
+          echo "Short tag: $TRUNC_VER"
+          echo "tag=$TRUNC_VER" >>  $GITHUB_OUTPUT
+      - uses: rickstaa/action-create-tag@v1
+        permissions:
+          contents: write
+        with:
+          force_push_tag: true
+          tag: "${{ steps.calculate_short_tag.outputs.tag }}"
+          message: "Points to ${{ github.ref_name }}"

.gitignore

@@ -1,99 +1,13 @@
 # Dependency directory
 node_modules
 
-# Rest pulled from https://github.com/github/gitignore/blob/master/Node.gitignore
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-lerna-debug.log*
-
-# Diagnostic reports (https://nodejs.org/api/report.html)
-report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-*.lcov
-
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-jspm_packages/
-
-# TypeScript v1 declaration files
-typings/
-
-# TypeScript cache
-*.tsbuildinfo
-
-# Optional npm cache directory
-.npm
-
-# Optional eslint cache
-.eslintcache
-
-# Optional REPL history
-.node_repl_history
-
-# Output of 'npm pack'
-*.tgz
-
-# Yarn Integrity file
-.yarn-integrity
-
 # dotenv environment variables file
 .env
 .env.test
 
-# parcel-bundler cache (https://parceljs.org/)
-.cache
-
-# next.js build output
-.next
-
-# nuxt.js build output
-.nuxt
-
-# vuepress build output
-.vuepress/dist
-
-# Serverless directories
-.serverless/
-
-# FuseBox cache
-.fusebox/
-
-# DynamoDB Local files
-.dynamodb/
-
 # OS metadata
 .DS_Store
 Thumbs.db
 
 # Ignore built ts files
-__tests__/runner/*
 lib

__tests__/main.test.ts

@@ -26,34 +26,34 @@ type TestFile = {
 };
 const TEST_FILES: TestFile[] = [
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file2_deleted.txt%0A@@ -1,4 +1,3 @@%0A A%0A-B%0A C%0A D%0A",
 		path: "file2_deleted.txt",
 		tolerance: "worse",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file2_deleted.txt%0A@@ -1,4 +1,3 @@%0A A%0A-B%0A C%0A D%0A",
 	},
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file3_same.txt%0A",
 		path: "file3_same.txt",
 		tolerance: "same",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file3_same.txt%0A",
 	},
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file4_added.txt%0A@@ -1,4 +1,5 @@%0A A%0A B%0A C%0A D%0A+E%0A",
 		path: "file4_added.txt",
 		tolerance: "better",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file4_added.txt%0A@@ -1,4 +1,5 @@%0A A%0A B%0A C%0A D%0A+E%0A",
 	},
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file5_mixed.txt%0A@@ -1,4 +1,4 @@%0A A%0A B%0A-C%0A D%0A+E%0A",
 		path: "file5_mixed.txt",
 		tolerance: "mixed",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file5_mixed.txt%0A@@ -1,4 +1,4 @@%0A A%0A B%0A-C%0A D%0A+E%0A",
 	},
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file6_mixed_added.txt%0A@@ -1,4 +1,5 @@%0A A%0A B%0A-C%0A D%0A+E%0A+F%0A",
 		path: "file6_mixed_added.txt",
 		tolerance: "mixed-better",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file6_mixed_added.txt%0A@@ -1,4 +1,5 @@%0A A%0A B%0A-C%0A D%0A+E%0A+F%0A",
 	},
 	{
+		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file7_mixed_deleted.txt%0A@@ -1,4 +1,3 @@%0A A%0A B%0A-C%0A-D%0A+E%0A",
 		path: "file7_mixed_deleted.txt",
 		tolerance: "mixed-worse",
-		diff: "===================================================================%0A--- FIXTURES/file1_basic.txt%0A+++ FIXTURES/file7_mixed_deleted.txt%0A@@ -1,4 +1,3 @@%0A A%0A B%0A-C%0A-D%0A+E%0A",
 	},
 ];
 
@@ -95,8 +95,8 @@ describe("run action", () => {
 	};
 
 	const parseOutput = (actionOutput: string): ActionOutputs => {
-		let passed: boolean | undefined = undefined;
-		let output: string | undefined = undefined;
+		let passed: boolean | undefined;
+		let output: string | undefined;
 		for (const line of actionOutput.split("\n")) {
 			if (line.startsWith("::set-output name=passed::")) {
 				passed = line.split("::set-output name=passed::")[1] === "true";
@@ -108,7 +108,7 @@ describe("run action", () => {
 		if (passed === undefined || output === undefined) {
 			throw new Error("Action did not return expected output");
 		}
-		return { passed, output };
+		return { output, passed };
 	};
 
 	const runAction = (
@@ -122,7 +122,7 @@ describe("run action", () => {
 		process.env.INPUT_TOLERANCE = tolerance.toString();
 		process.env.INPUT_MODE = mode.toString();
 		process.env.GITHUB_OUTPUT = "";
-		const main = path.join(__dirname, "..", "lib", "main.js");
+		const main = path.join(__dirname, "..", "dist", "index.js");
 		const options: cp.ExecSyncOptions = {
 			env: process.env,
 		};
@@ -160,25 +160,25 @@ describe("run action", () => {
 	const cases = ((): Case[] => {
 		const cases: Case[] = [
 			{
+				expectError: true,
+				mode: "strict",
 				name: "an unknown file",
 				newFile: "do not exist . whatever",
-				mode: "strict",
 				tolerance: "same",
-				expectError: true,
 			},
 			{
+				expectError: true,
+				mode: "mixed" as unknown as Mode,
 				name: "an unknown mode",
 				newFile: TEST_FILES[0].path,
-				mode: "mixed" as unknown as Mode,
 				tolerance: "same",
-				expectError: true,
 			},
 			{
+				expectError: true,
+				mode: "addition",
 				name: "an unknown tolerance",
 				newFile: TEST_FILES[0].path,
-				mode: "addition",
 				tolerance: "high" as unknown as Tolerance,
-				expectError: true,
 			},
 		];
 
@@ -195,13 +195,13 @@ describe("run action", () => {
 						result = "an error";
 					}
 					cases.push({
+						expectError,
+						expectedOutput: file.diff,
+						expectedPass,
+						mode: mode,
 						name: `file ${file.path}, mode ${mode}, tolerance ${tolerance} and expecting ${result}`,
 						newFile: file.path,
 						tolerance: tolerance,
-						mode: mode,
-						expectedPass,
-						expectedOutput: file.diff,
-						expectError,
 					});
 				}
 			}
@@ -210,34 +210,31 @@ describe("run action", () => {
 		return cases;
 	})();
 
-	test.each(cases)(
-		"with $name",
-		({
-			newFile,
+	test.each(cases)("with $name", ({
+		newFile,
+		tolerance,
+		mode,
+		expectedPass,
+		expectedOutput,
+		expectError,
+	}: Case) => {
+		if (expectError) {
+			expect(() => {
+				runAction(BASE_FILE, newFile, tolerance, mode);
+			}).toThrow();
+			return;
+		}
+		const { passed, output } = runAction(
+			BASE_FILE,
+			path.join(FIXTURES_FOLDER, newFile),
 			tolerance,
 			mode,
-			expectedPass,
+		);
+		expect(passed).toBe(expectedPass);
+		expect(output.replace(new RegExp(FIXTURES_FOLDER, "g"), "FIXTURES")).toBe(
 			expectedOutput,
-			expectError,
-		}: Case) => {
-			if (expectError) {
-				expect(() => {
-					runAction(BASE_FILE, newFile, tolerance, mode);
-				}).toThrow();
-				return;
-			}
-			const { passed, output } = runAction(
-				BASE_FILE,
-				path.join(FIXTURES_FOLDER, newFile),
-				tolerance,
-				mode,
-			);
-			expect(passed).toBe(expectedPass);
-			expect(output.replace(new RegExp(FIXTURES_FOLDER, "g"), "FIXTURES")).toBe(
-				expectedOutput,
-			);
-		},
-	);
+		);
+	});
 });
 
 // TODO: missing tests for notifications?