smartdaemon/ts/smartdaemon.classes.systemdmanager.ts
2019-09-05 16:04:38 +02:00

136 lines
4.5 KiB
TypeScript

import * as plugins from './smartdaemon.plugins';
import * as paths from './smartdaemon.paths';
import { SmartDaemon } from './smartdaemon.classes.smartdaemon';
import { ISmartDaemonServiceConstructorOptions, SmartDaemonService } from './smartdaemon.classes.service';
export class SmartDaemonSystemdManager {
// STATIC
private static smartDaemonNamespace = 'smartdaemon';
public static createServiceNameFromServiceName (serviceNameArg: string) {
return `${SmartDaemonSystemdManager.smartDaemonNamespace}_${serviceNameArg}`;
}
public static createFileNameFromServiceName (serviceNameArg: string) {
return `${SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceNameArg)}.service`;
};
public static createFilePathFromServiceName (serviceNameArg: string) {
return plugins.path.join(
paths.systemdDir,
SmartDaemonSystemdManager.createFileNameFromServiceName(serviceNameArg)
);
}
// INSTANCE
public smartdaemonRef: SmartDaemon;
public smartshellInstance: plugins.smartshell.Smartshell;
public smartsystem: plugins.smartsystem.Smartsystem;
public shouldExecute: boolean = false;
constructor(smartdaemonRefArg: SmartDaemon) {
this.smartdaemonRef = smartdaemonRefArg;
this.smartshellInstance = new plugins.smartshell.Smartshell({
executor: 'bash'
});
this.smartsystem = new plugins.smartsystem.Smartsystem();
}
public async checkElegibility() {
if (await this.smartsystem.env.isLinuxAsync()) {
this.shouldExecute = true;
} else {
console.log('Smartdaemon can only be used on Linux systems! Refusing to set up a service.');
this.shouldExecute = false;
}
return this.shouldExecute;
}
public async execute(commandArg: string) {
if (await this.checkElegibility()) {
await this.smartshellInstance.exec(commandArg);
}
}
/**
* gets all services that are already present
*/
public async getServices() {
const existingServices: SmartDaemonService[] = [];
if (await this.checkElegibility()) {
const smartfmInstance = new plugins.smartfm.Smartfm({
fmType: 'yaml'
});
const availableServices = await plugins.smartfile.fs.fileTreeToObject(
paths.systemdDir,
'smartdaemon_*.service'
);
for (const serviceFile of availableServices) {
const data = smartfmInstance.parseFromComments('# ', serviceFile.contentBuffer.toString())
.data as ISmartDaemonServiceConstructorOptions;
const service = await SmartDaemonService.createFromOptions(this.smartdaemonRef, data);
service.alreadyExists = true;
existingServices.push(service);
}
}
return existingServices;
}
public async startService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
if (serviceArg.alreadyExists) {
await this.stopService(serviceArg);
}
await this.execute(
`systemctl start ${SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceArg.name)}`
);
}
}
public async stopService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
await this.execute(
`systemctl stop ${SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceArg.name)}`
);
}
}
public async saveService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
await plugins.smartfile.memory.toFs(
this.smartdaemonRef.templateManager.generateUnitFileForService(serviceArg),
SmartDaemonSystemdManager.createFilePathFromServiceName(serviceArg.name)
);
}
}
public async deleteService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
await plugins.smartfile.fs.remove(
SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceArg.name)
);
}
}
public async enableService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
await this.saveService(serviceArg);
if (serviceArg.alreadyExists) {
await this.execute(`systemctl daemon-reload`);
}
await this.execute(
`systemctl enable ${SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceArg.name)}`
);
}
}
public async disableService(serviceArg: SmartDaemonService) {
if (await this.checkElegibility()) {
await this.execute(
`systemctl disable ${SmartDaemonSystemdManager.createServiceNameFromServiceName(serviceArg.name)}`
);
}
}
public async init() {}
}