@nestjs-mod/pm2/src/lib/pm2.service.js

Production process manager for Node.JS applications with a built-in load balancer for NestJS-mod (Generator ecosystem.config.json for https://www.npmjs.com/package/pm2)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Pm2Service = void 0;
const tslib_1 = require("tslib");
const common_1 = require("@nestjs-mod/common");
const common_2 = require("@nestjs/common");
const path_1 = require("path");
const pm2_ecosystem_config_file_service_1 = require("./pm2-ecosystem-config-file.service");
const pm2_configuration_1 = require("./pm2.configuration");
const pm2_constants_1 = require("./pm2.constants");
let Pm2Service = class Pm2Service {
    constructor(pm2Configuration, pm2EcosystemConfigFileService, applicationPackageJsonService, packageJsonService, wrapApplicationOptionsService, nxProjectJsonService) {
        this.pm2Configuration = pm2Configuration;
        this.pm2EcosystemConfigFileService = pm2EcosystemConfigFileService;
        this.applicationPackageJsonService = applicationPackageJsonService;
        this.packageJsonService = packageJsonService;
        this.wrapApplicationOptionsService = wrapApplicationOptionsService;
        this.nxProjectJsonService = nxProjectJsonService;
    }
    onApplicationBootstrap() {
        this.updatePm2EcosystemConfigFile();
        this.updatePackageJson();
    }
    updatePackageJson() {
        const packageJson = this.packageJsonService.read();
        const packageJsonFilePath = this.packageJsonService.getPackageJsonFilePath();
        if (packageJson && packageJsonFilePath) {
            const ecosystemConfigFilePath = this.pm2Configuration.ecosystemConfigFile.replace((0, path_1.dirname)(packageJsonFilePath), '');
            if (packageJson.scripts) {
                this.packageJsonService.addScripts(pm2_constants_1.PM2_PROD_INFRA_CATEGORY_NAME, {
                    'pm2:start': {
                        commands: [`./node_modules/.bin/pm2 start .${ecosystemConfigFilePath}`],
                        comments: ['Launch all applications in PM2 mode'],
                    },
                    'pm2:stop': {
                        commands: [`./node_modules/.bin/pm2 delete all`],
                        comments: ['Stop all applications in PM2 mode'],
                    },
                }, packageJson);
            }
            this.packageJsonService.write(packageJson);
        }
    }
    updatePm2EcosystemConfigFile() {
        const currentConfig = this.pm2EcosystemConfigFileService.read();
        const packageJsonFilePath = this.packageJsonService.getPackageJsonFilePath();
        if (!packageJsonFilePath) {
            return;
        }
        const appName = this.wrapApplicationOptionsService?.project?.name ?? this.applicationPackageJsonService.read()?.name;
        const currentApp = {
            ...Object.entries(this.pm2Configuration)
                .filter(([key]) => key !== 'ecosystemConfigFile' && key !== 'applicationScriptFile')
                .reduce((all, [key, value]) => ({ ...all, [key]: value }), {}),
            name: appName,
            script: `./node_modules/.bin/nx serve ${this.nxProjectJsonService.read()?.name} --skip-nx-cache=true`,
            // `node ./${this.pm2Configuration.applicationScriptFile.replace(dirname(packageJsonFilePath), '')}`,
        };
        currentConfig.apps = currentConfig.apps.map((app) => {
            if (app.name === appName) {
                return { ...currentApp, ...app };
            }
            return app;
        });
        if (!currentConfig.apps.some((app) => app.name === appName)) {
            currentConfig.apps.push(currentApp);
        }
        this.pm2EcosystemConfigFileService.write(currentConfig);
    }
};
exports.Pm2Service = Pm2Service;
exports.Pm2Service = Pm2Service = tslib_1.__decorate([
    (0, common_2.Injectable)(),
    tslib_1.__metadata("design:paramtypes", [pm2_configuration_1.Pm2Configuration,
        pm2_ecosystem_config_file_service_1.Pm2EcosystemConfigFileService,
        common_1.ApplicationPackageJsonService,
        common_1.PackageJsonService,
        common_1.WrapApplicationOptionsService,
        common_1.NxProjectJsonService])
], Pm2Service);
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