From e064c5e40da736aeb598eec9897e9f9313dc4477 Mon Sep 17 00:00:00 2001
From: Ghislain Piot <ghislain.piot@sonarsource.com>
Date: Sat, 7 Sep 2024 16:11:17 +0000
Subject: [PATCH] feat(manager): add bun-version manager (#29998)

Co-authored-by: Rhys Arkins <rhys@arkins.net>
Co-authored-by: Sebastian Poxhofer <secustor@users.noreply.github.com>
---
 lib/modules/manager/api.ts                    |  2 +
 lib/modules/manager/bun-version/index.spec.ts | 57 +++++++++++++++++++
 lib/modules/manager/bun-version/index.ts      | 36 ++++++++++++
 lib/modules/manager/bun-version/readme.md     |  1 +
 4 files changed, 96 insertions(+)
 create mode 100644 lib/modules/manager/bun-version/index.spec.ts
 create mode 100644 lib/modules/manager/bun-version/index.ts
 create mode 100644 lib/modules/manager/bun-version/readme.md

diff --git a/lib/modules/manager/api.ts b/lib/modules/manager/api.ts
index 664444223f467c..8e7271cd3aa320 100644
--- a/lib/modules/manager/api.ts
+++ b/lib/modules/manager/api.ts
@@ -13,6 +13,7 @@ import * as bitbucketPipelines from './bitbucket-pipelines';
 import * as bitrise from './bitrise';
 import * as buildkite from './buildkite';
 import * as bun from './bun';
+import * as bunVersion from './bun-version';
 import * as bundler from './bundler';
 import * as cake from './cake';
 import * as cargo from './cargo';
@@ -115,6 +116,7 @@ api.set('bitbucket-pipelines', bitbucketPipelines);
 api.set('bitrise', bitrise);
 api.set('buildkite', buildkite);
 api.set('bun', bun);
+api.set('bun-version', bunVersion);
 api.set('bundler', bundler);
 api.set('cake', cake);
 api.set('cargo', cargo);
diff --git a/lib/modules/manager/bun-version/index.spec.ts b/lib/modules/manager/bun-version/index.spec.ts
new file mode 100644
index 00000000000000..038c31e48b1dc4
--- /dev/null
+++ b/lib/modules/manager/bun-version/index.spec.ts
@@ -0,0 +1,57 @@
+import { extractPackageFile } from '.';
+
+describe('modules/manager/bun-version/index', () => {
+  describe('extractPackageFile()', () => {
+    it('returns a result', () => {
+      const res = extractPackageFile('1.1.15\n');
+      expect(res?.deps).toEqual([
+        {
+          depName: 'Bun',
+          packageName: 'bun',
+          currentValue: '1.1.15',
+          datasource: 'npm',
+        },
+      ]);
+    });
+
+    it('handles empty files', () => {
+      const res = extractPackageFile('');
+      expect(res).toBeNull();
+    });
+
+    it('handles no newline at the end', () => {
+      const res = extractPackageFile('1.1.15');
+      expect(res).not.toBeNull();
+    });
+
+    it('handles multiple lines', () => {
+      const res = extractPackageFile('1.1.15\n1.1.16\n');
+      expect(res).toBeNull();
+    });
+
+    it('handles invalid versions', () => {
+      const res = extractPackageFile('notaversion\n');
+      expect(res?.deps).toEqual([
+        {
+          depName: 'Bun',
+          packageName: 'bun',
+          currentValue: 'notaversion',
+          datasource: 'npm',
+          skipReason: 'invalid-version',
+        },
+      ]);
+    });
+
+    it('handles ranges', () => {
+      const res = extractPackageFile('1.0\n');
+      expect(res?.deps).toEqual([
+        {
+          depName: 'Bun',
+          packageName: 'bun',
+          currentValue: '1.0',
+          datasource: 'npm',
+        },
+      ]);
+    });
+  });
+});
diff --git a/lib/modules/manager/bun-version/index.ts b/lib/modules/manager/bun-version/index.ts
new file mode 100644
index 00000000000000..80cc49e96f7b17
--- /dev/null
+++ b/lib/modules/manager/bun-version/index.ts
@@ -0,0 +1,36 @@
+import type { Category } from '../../../constants';
+import { NpmDatasource } from '../../datasource/npm';
+import { id, isValid } from '../../versioning/npm';
+
+import type { PackageDependency, PackageFileContent } from '../types';
+
+export const supportedDatasources = [NpmDatasource.id];
+
+export const defaultConfig = {
+  fileMatch: ['(^|/)\\.bun-version$'],
+  versioning: id,
+};
+
+export const categories: Category[] = ['js'];
+
+export function extractPackageFile(content: string): PackageFileContent | null {
+  if (!content) {
+    return null;
+  }
+
+  if (content.split('\n').length > 2) {
+    return null;
+  }
+
+  const dep: PackageDependency = {
+    depName: 'Bun',
+    packageName: 'bun',
+    currentValue: content.trim(),
+    datasource: NpmDatasource.id,
+  };
+
+  if (!isValid(content.trim())) {
+    dep.skipReason = 'invalid-version';
+  }
+  return { deps: [dep] };
+}
diff --git a/lib/modules/manager/bun-version/readme.md b/lib/modules/manager/bun-version/readme.md
new file mode 100644
index 00000000000000..8fea47b4721afc
--- /dev/null
+++ b/lib/modules/manager/bun-version/readme.md
@@ -0,0 +1 @@
+Simply keeps the `.bun-version` file updated.