feat: add ql service log command

test/back/qlServiceLogCommand.test.cjs

@@ -0,0 +1,56 @@
+'use strict';
+
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const os = require('node:os');
+const path = require('node:path');
+const { spawnSync } = require('node:child_process');
+const { after, test } = require('node:test');
+
+const root = path.resolve(__dirname, '../..');
+const fixtureRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'ql-log-command-'));
+
+after(() => fs.rmSync(fixtureRoot, { recursive: true, force: true }));
+
+function writeExecutable(filePath, content) {
+  fs.writeFileSync(filePath, content, { mode: 0o755 });
+}
+
+test('ql log scopes PM2 output to qinglong and forwards log options', () => {
+  const shellDir = path.join(fixtureRoot, 'shell');
+  const binDir = path.join(fixtureRoot, 'bin');
+  fs.mkdirSync(shellDir, { recursive: true });
+  fs.mkdirSync(binDir, { recursive: true });
+
+  fs.copyFileSync(
+    path.join(root, 'shell/update.sh'),
+    path.join(shellDir, 'update.sh'),
+  );
+  fs.writeFileSync(
+    path.join(shellDir, 'share.sh'),
+    'load_ql_envs() { :; }\nimport_config() { :; }\n',
+  );
+  fs.writeFileSync(path.join(shellDir, 'api.sh'), '');
+  fs.writeFileSync(path.join(shellDir, 'env.sh'), '');
+  writeExecutable(
+    path.join(binDir, 'pm2'),
+    '#!/usr/bin/env bash\nprintf "%s\\n" "$@"\n',
+  );
+
+  const result = spawnSync(
+    '/bin/bash',
+    [path.join(shellDir, 'update.sh'), 'log', '--lines', '25', '--nostream'],
+    {
+      encoding: 'utf8',
+      env: {
+        ...process.env,
+        PATH: `${binDir}:${process.env.PATH}`,
+        QL_DIR: fixtureRoot,
+      },
+    },
+  );
+
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(result.stdout, 'logs\nqinglong\n--lines\n25\n--nostream\n');
+  assert.equal(fs.existsSync(path.join(fixtureRoot, 'data/log/log')), false);
+});