Fix v2.19.1 migration schema connection ownership

src/db/migrations.js

@@ -830,14 +830,13 @@ const VERSIONED_MIGRATIONS = [
     version: '2.19.1',
     label: 'v2.19.1 rebuild managed font references',
     run: async function (pool) {
-      const connection = await pool.getConnection();
       try {
-        await connection.beginTransaction();
+        await pool.beginTransaction();
-        await connection.query('DELETE FROM c_content_references WHERE reference_type = ?', ['font-family']);
+        await pool.query('DELETE FROM c_content_references WHERE reference_type = ?', ['font-family']);
 
         let lastSlideId = 0;
         while (true) {
-          const [slides] = await connection.query(
+          const [slides] = await pool.query(
             'SELECT id, content_json FROM c_slides WHERE id > ? AND content_json IS NOT NULL ORDER BY id ASC LIMIT 500',
             [lastSlideId]
           );
@@ -847,13 +846,13 @@ const VERSIONED_MIGRATIONS = [
             references.push.apply(references, collectContentReferences('slide', slide.id, parseJsonSafe(slide.content_json) || {})
               .filter(function (reference) { return reference.reference_type === 'font-family'; }));
           });
-          await insertContentReferences(connection, references);
+          await insertContentReferences(pool, references);
           lastSlideId = Number(slides[slides.length - 1].id);
         }
 
         let lastRegionId = 0;
         while (true) {
-          const [regions] = await connection.query(
+          const [regions] = await pool.query(
             'SELECT id, template_id, region_key, default_content_json FROM c_template_regions WHERE id > ? AND default_content_json IS NOT NULL ORDER BY id ASC LIMIT 500',
             [lastRegionId]
           );
@@ -865,16 +864,14 @@ const VERSIONED_MIGRATIONS = [
             references.push.apply(references, collectContentReferences('template', region.template_id, regionContent)
               .filter(function (reference) { return reference.reference_type === 'font-family'; }));
           });
-          await insertContentReferences(connection, references);
+          await insertContentReferences(pool, references);
           lastRegionId = Number(regions[regions.length - 1].id);
         }
 
-        await connection.commit();
+        await pool.commit();
       } catch (error) {
-        await connection.rollback();
+        await pool.rollback();
         throw error;
-      } finally {
-        connection.release();
       }
     }
   }

test/timetable-migrations.test.js

@@ -9,11 +9,9 @@ function createPool(responses) {
   const queries = [];
   return {
     queries,
-    async getConnection() { return this; },
     async beginTransaction() { queries.push(['START TRANSACTION']); },
     async commit() { queries.push(['COMMIT']); },
     async rollback() { queries.push(['ROLLBACK']); },
-    release() { queries.push(['RELEASE CONNECTION']); },
     async query(sql, params) {
       queries.push([sql, params]);
       const text = String(sql);
@@ -244,11 +242,11 @@ test('2.19.1 migration rebuilds only managed font references for all content in
   assert.ok(pool.queries.some(([sql, params]) => sql.startsWith('SELECT id, content_json') && params[0] === 118));
   assert.ok(pool.queries.some(([sql, params]) => sql.startsWith('SELECT id, template_id, region_key') && params[0] === 900));
   assert.ok(!pool.queries.some(([sql]) => /^(UPDATE|ALTER|TRUNCATE)/.test(sql)));
-  assert.deepEqual(pool.queries.slice(-2), [['COMMIT'], ['RELEASE CONNECTION']]);
+  assert.deepEqual(pool.queries.slice(-1), [['COMMIT']]);
   assert.deepEqual(await getPendingMigrations(pool, { currentVersion: '2.19.1' }), []);
 });
 
-test('2.19.1 font repair rolls back and releases its connection on failure', async () => {
+test('2.19.1 font repair rolls back without releasing the caller-owned connection on failure', async () => {
   const pool = createPool([
     { match: sql => sql.includes('information_schema.COLUMNS'), result: [[{ column_count: 1 }]] },
     { match: sql => sql.includes('information_schema.TABLES'), result: [[{ table_count: 0 }]] }
@@ -261,6 +259,36 @@ test('2.19.1 font repair rolls back and releases its connection on failure', asy
   };
 
   await assert.rejects(migration.run(pool), /read failed/);
-  assert.deepEqual(pool.queries.slice(-2), [['ROLLBACK'], ['RELEASE CONNECTION']]);
+  assert.deepEqual(pool.queries.slice(-1), [['ROLLBACK']]);
   assert.ok(!pool.queries.some(([sql]) => sql === 'COMMIT'));
+});
+
+test('schema startup runs the 2.19.1 repair on its existing locked connection', async () => {
+  const { ensureSchema } = require('../src/db');
+  const connection = createPool([
+    { match: sql => sql.includes('SELECT GET_LOCK'), result: [[{ lock_acquired: 1 }]] },
+    { match: (sql, params) => sql.includes('information_schema.TABLES') && params[0] === 'o_app_state', result: [[{ table_count: 1 }]] },
+    { match: sql => sql.startsWith('SELECT state_value'), result: [[{ state_value: '2.19.0' }]] },
+    { match: sql => sql.includes('information_schema.COLUMNS'), result: [[{ column_count: 1 }]] },
+    { match: sql => sql.includes('information_schema.TABLES'), result: [[{ table_count: 0 }]] }
+  ]);
+  connection.release = function () { connection.queries.push(['RELEASE CONNECTION']); };
+  let acquisitions = 0;
+
+  await ensureSchema({
+    async getConnection() {
+      acquisitions += 1;
+      return connection;
+    }
+  });
+
+  assert.equal(acquisitions, 1);
+  const commitIndex = connection.queries.findIndex(([sql]) => sql === 'COMMIT');
+  const versionIndex = connection.queries.findIndex(([sql, params]) => sql.startsWith('UPDATE o_app_state') && params[0] === '2.19.1');
+  assert.ok(commitIndex > 0);
+  assert.ok(versionIndex > commitIndex);
+  assert.deepEqual(connection.queries.slice(-2), [
+    ['SELECT RELEASE_LOCK(?)', ['pulse_signage_schema_lock']],
+    ['RELEASE CONNECTION']
+  ]);
 });