refactor(core): Abstract away InstanceSettings and encryptionKey into injectable services (no-changelog) (#7471)

This change ensures that things like `encryptionKey` and `instanceId`
are always available directly where they are needed, instead of passing
them around throughout the code.

packages/cli/src/databases/config.ts

@@ -1,8 +1,9 @@
 import path from 'path';
+import { Container } from 'typedi';
 import type { SqliteConnectionOptions } from 'typeorm/driver/sqlite/SqliteConnectionOptions';
 import type { PostgresConnectionOptions } from 'typeorm/driver/postgres/PostgresConnectionOptions';
 import type { MysqlConnectionOptions } from 'typeorm/driver/mysql/MysqlConnectionOptions';
-import { UserSettings } from 'n8n-core';
+import { InstanceSettings } from 'n8n-core';
 
 import { entities } from './entities';
 import { mysqlMigrations } from './migrations/mysqldb';
@@ -21,7 +22,7 @@ const getDBConnectionOptions = (dbType: DatabaseType) => {
 		configDBType === 'sqlite'
 			? {
 					database: path.resolve(
-						UserSettings.getUserN8nFolderPath(),
+						Container.get(InstanceSettings).n8nFolder,
 						config.getEnv('database.sqlite.database'),
 					),
 					enableWAL: config.getEnv('database.sqlite.enableWAL'),

packages/cli/src/databases/migrations/sqlite/1690000000002-MigrateIntegerKeysToString.ts

@@ -1,6 +1,7 @@
 import { statSync } from 'fs';
 import path from 'path';
-import { UserSettings } from 'n8n-core';
+import { Container } from 'typedi';
+import { InstanceSettings } from 'n8n-core';
 import type { MigrationContext, IrreversibleMigration } from '@db/types';
 import config from '@/config';
 
@@ -191,7 +192,7 @@ const migrationsPruningEnabled = process.env.MIGRATIONS_PRUNING_ENABLED === 'tru
 
 function getSqliteDbFileSize(): number {
 	const filename = path.resolve(
-		UserSettings.getUserN8nFolderPath(),
+		Container.get(InstanceSettings).n8nFolder,
 		config.getEnv('database.sqlite.database'),
 	);
 	const { size } = statSync(filename);

packages/cli/src/databases/utils/migrationHelpers.ts

@@ -1,6 +1,6 @@
 import { Container } from 'typedi';
 import { readFileSync, rmSync } from 'fs';
-import { UserSettings } from 'n8n-core';
+import { InstanceSettings } from 'n8n-core';
 import type { ObjectLiteral } from 'typeorm';
 import type { QueryRunner } from 'typeorm/query-runner/QueryRunner';
 import { jsonParse } from 'n8n-workflow';
@@ -16,9 +16,10 @@ const logger = getLogger();
 const PERSONALIZATION_SURVEY_FILENAME = 'personalizationSurvey.json';
 
 function loadSurveyFromDisk(): string | null {
-	const userSettingsPath = UserSettings.getUserN8nFolderPath();
 	try {
-		const filename = `${userSettingsPath}/${PERSONALIZATION_SURVEY_FILENAME}`;
+		const filename = `${
+			Container.get(InstanceSettings).n8nFolder
+		}/${PERSONALIZATION_SURVEY_FILENAME}`;
 		const surveyFile = readFileSync(filename, 'utf-8');
 		rmSync(filename);
 		const personalizationSurvey = JSON.parse(surveyFile) as object;