feat(core): add SSH data access proxy CLI and core managers

test/test.sshconfigwriter.node.ts

@@ -0,0 +1,45 @@
+import { tap, expect } from '@git.zone/tstest/tapbundle';
+import * as fs from 'node:fs/promises';
+import * as os from 'node:os';
+import * as path from 'node:path';
+
+import { SshConfigWriter } from '../ts/index.js';
+
+tap.test('should add managed host blocks and update existing hosts', async () => {
+  const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'dap-sshconfigwriter-'));
+  try {
+    const sshDir = path.join(tempDir, '.ssh');
+    await fs.mkdir(sshDir, { recursive: true });
+    const mainConfigPath = path.join(sshDir, 'config');
+    await fs.writeFile(mainConfigPath, ['Host old', '  HostName old.example.com', ''].join('\n'));
+
+    const writer = new SshConfigWriter({ homeDir: tempDir, mainConfigPath });
+    const addResult = await writer.addOrReplaceManagedHost({
+      alias: 'alpha',
+      hostName: 'alpha.example.com',
+      user: 'deploy',
+      port: '22',
+      identityFile: '~/.ssh/id_ed25519',
+    });
+
+    const addedContent = await fs.readFile(mainConfigPath, 'utf8');
+    expect(addResult.changed).toEqual(true);
+    expect(addedContent.includes('# dap:begin alpha')).toEqual(true);
+    expect(addedContent.includes('HostName alpha.example.com')).toEqual(true);
+
+    const preview = await writer.previewUpdateHost('old', { user: 'root', port: '2222' });
+    expect(preview.dapManaged).toEqual(false);
+    expect(preview.diff.includes('+  User root')).toEqual(true);
+
+    const editResult = await writer.updateHost('old', { user: 'root', port: '2222' });
+    const editedContent = await fs.readFile(mainConfigPath, 'utf8');
+    expect(editResult.changed).toEqual(true);
+    expect(Boolean(editResult.backupPath)).toEqual(true);
+    expect(editedContent.includes('  User root')).toEqual(true);
+    expect(editedContent.includes('  Port 2222')).toEqual(true);
+  } finally {
+    await fs.rm(tempDir, { recursive: true, force: true });
+  }
+});
+
+export default tap.start();