forked from cerc-io/snowballtools-base
71 lines
1.9 KiB
TypeScript
71 lines
1.9 KiB
TypeScript
import fs from 'fs-extra';
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import path from 'path';
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import toml from 'toml';
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import debug from 'debug';
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import { DataSource, DeepPartial, EntityTarget, ObjectLiteral } from 'typeorm';
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const log = debug('snowball:utils');
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export const getConfig = async <ConfigType>(
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configFile: string
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): Promise<ConfigType> => {
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const configFilePath = path.resolve(configFile);
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const fileExists = await fs.pathExists(configFilePath);
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if (!fileExists) {
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throw new Error(`Config file not found: ${configFilePath}`);
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}
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const config = toml.parse(await fs.readFile(configFilePath, 'utf8'));
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log('config', JSON.stringify(config, null, 2));
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return config;
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};
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export const checkFileExists = async (filePath: string): Promise<boolean> => {
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try {
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await fs.access(filePath, fs.constants.F_OK);
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return true;
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} catch (err) {
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log(err);
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return false;
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}
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};
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export const getEntities = async (filePath: string): Promise<any> => {
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const entitiesData = await fs.readFile(filePath, 'utf-8');
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const entities = JSON.parse(entitiesData);
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return entities;
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};
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export const loadAndSaveData = async <Entity extends ObjectLiteral>(
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entityType: EntityTarget<Entity>,
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dataSource: DataSource,
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entities: any,
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relations?: any | undefined
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): Promise<Entity[]> => {
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const entityRepository = dataSource.getRepository(entityType);
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const savedEntity: Entity[] = [];
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for (const entityData of entities) {
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let entity = entityRepository.create(entityData as DeepPartial<Entity>);
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if (relations) {
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for (const field in relations) {
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const valueIndex = String(field + 'Index');
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entity = {
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...entity,
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[field]: relations[field][entityData[valueIndex]]
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};
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}
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}
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const dbEntity = await entityRepository.save(entity);
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savedEntity.push(dbEntity);
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}
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return savedEntity;
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};
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export const sleep = async (ms: number): Promise<void> => new Promise(resolve => setTimeout(resolve, ms));
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