mirror of
https://github.com/n8n-io/n8n.git
synced 2024-11-15 09:04:07 -08:00
276 lines
8.4 KiB
TypeScript
276 lines
8.4 KiB
TypeScript
import * as fs from 'fs';
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import { Command, flags } from '@oclif/command';
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import {
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UserSettings,
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} from 'n8n-core';
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import {
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INode,
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} from 'n8n-workflow';
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import {
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ActiveExecutions,
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CredentialsOverwrites,
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CredentialTypes,
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Db,
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ExternalHooks,
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GenericHelpers,
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IWorkflowExecutionDataProcess,
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LoadNodesAndCredentials,
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NodeTypes,
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WorkflowCredentials,
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WorkflowRunner,
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} from "../src";
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import {
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sep
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} from 'path';
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import {
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diff,
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diffString
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} from 'json-diff';
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export class ExecuteAll extends Command {
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static description = '\nExecutes all workflows once';
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static examples = [
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`$ n8n executeAll`,
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`$ n8n executeAll --debug`,
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`$ n8n executeAll --snapshot=/data/snapshots`,
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];
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static flags = {
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help: flags.help({ char: 'h' }),
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debug: flags.boolean({
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description: 'Toggles on displaying all errors and debug messages.',
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}),
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json: flags.boolean({
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description: 'Toggles on displaying results in JSON format.',
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}),
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snapshot: flags.string({
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description: 'Enables snapshot saving. You must inform an existing folder to save snapshots via this param.',
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}),
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compare: flags.string({
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description: 'Compares current execution with an existing snapshot. You must inform an existing folder where the snapshots are saved.',
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}),
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};
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async run() {
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const { flags } = this.parse(ExecuteAll);
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const debug = flags.debug !== undefined;
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const json = flags.json !== undefined;
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if (flags.snapshot !== undefined) {
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if (fs.existsSync(flags.snapshot)) {
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if (!fs.lstatSync(flags.snapshot).isDirectory()) {
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GenericHelpers.logOutput(`The paramenter --snapshot must be an existing directory`);
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return;
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}
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} else {
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GenericHelpers.logOutput(`The paramenter --snapshot must be an existing directory`);
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return;
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}
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}
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if (flags.compare !== undefined) {
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if (fs.existsSync(flags.compare)) {
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if (!fs.lstatSync(flags.compare).isDirectory()) {
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GenericHelpers.logOutput(`The paramenter --compare must be an existing directory`);
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return;
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}
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} else {
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GenericHelpers.logOutput(`The paramenter --compare must be an existing directory`);
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return;
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}
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}
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// Start directly with the init of the database to improve startup time
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const startDbInitPromise = Db.init();
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// Load all node and credential types
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const loadNodesAndCredentials = LoadNodesAndCredentials();
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const loadNodesAndCredentialsPromise = loadNodesAndCredentials.init();
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// Wait till the database is ready
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await startDbInitPromise;
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const allWorkflows = await Db.collections!.Workflow!.find();
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if (debug === true) {
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this.log(`Found ${allWorkflows.length} workflows to execute.`);
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}
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// Make sure the settings exist
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await UserSettings.prepareUserSettings();
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// Wait till the n8n-packages have been read
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await loadNodesAndCredentialsPromise;
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// Load the credentials overwrites if any exist
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const credentialsOverwrites = CredentialsOverwrites();
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await credentialsOverwrites.init();
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// Load all external hooks
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const externalHooks = ExternalHooks();
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await externalHooks.init();
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// Add the found types to an instance other parts of the application can use
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const nodeTypes = NodeTypes();
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await nodeTypes.init(loadNodesAndCredentials.nodeTypes);
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const credentialTypes = CredentialTypes();
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await credentialTypes.init(loadNodesAndCredentials.credentialTypes);
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// Check if the workflow contains the required "Start" node
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// "requiredNodeTypes" are also defined in editor-ui/views/NodeView.vue
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const requiredNodeTypes = ['n8n-nodes-base.start'];
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for (let i = 0; i < allWorkflows.length; i++) {
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const workflowData = allWorkflows[i];
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if (debug === true) {
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this.log(`Starting execution of workflow ID ${workflowData.id}.`);
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}
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const executionResult = {
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workflowId: workflowData.id,
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executionTime: 0,
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finished: false,
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nodes: workflowData.nodes.map(node => ({
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name: node.name,
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typeVersion: node.typeVersion,
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type: node.type,
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})),
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error:'',
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changes:'',
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};
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let startNode: INode | undefined= undefined;
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for (const node of workflowData!.nodes) {
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if (requiredNodeTypes.includes(node.type)) {
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startNode = node;
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break;
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}
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}
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if (startNode === undefined) {
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// If the workflow does not contain a start-node we can not know what
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// should be executed and with which data to start.
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if (json === true) {
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executionResult.error = 'Workflow cannot be started as it does not contain a "Start" node.';
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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GenericHelpers.logOutput(`Workflow ID ${workflowData.id} cannot be started as it does not contain a "Start" node.`);
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}
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continue;
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}
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try {
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const credentials = await WorkflowCredentials(workflowData!.nodes);
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const runData: IWorkflowExecutionDataProcess = {
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credentials,
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executionMode: 'cli',
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startNodes: [startNode.name],
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workflowData: workflowData!,
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};
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const workflowRunner = new WorkflowRunner();
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const executionId = await workflowRunner.run(runData);
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const activeExecutions = ActiveExecutions.getInstance();
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const data = await activeExecutions.getPostExecutePromise(executionId);
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if (data === undefined) {
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if (json === true) {
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executionResult.error = 'Workflow did not return any data.';
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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GenericHelpers.logOutput(`Workflow ${workflowData.id} did not return any data.`);
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}
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continue;
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}
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executionResult.finished = (data?.finished !== undefined) as boolean;
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if (data.data.resultData.error) {
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if (json === true) {
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executionResult.error = data.data.resultData.error.message;
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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GenericHelpers.logOutput(`Workflow ${workflowData.id} failed.`);
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}
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if (debug === true) {
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this.log(JSON.stringify(data, null, 2));
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console.log(data.data.resultData.error);
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}
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continue;
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}
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const serializedData = JSON.stringify(data, null, 2);
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if (json === true) {
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if (flags.compare === undefined){
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}
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}else{
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GenericHelpers.logOutput(`Workflow ${workflowData.id} succeeded.`);
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}
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if (flags.compare !== undefined) {
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const fileName = (flags.compare.endsWith(sep) ? flags.compare : flags.compare + sep) + `${workflowData.id}-snapshot.json`;
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if (fs.existsSync(fileName) === true) {
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const contents = fs.readFileSync(fileName, {encoding: 'utf-8'});
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//@ts-ignore
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const changes = diff(JSON.parse(contents), data, {keysOnly: true}); // types are outdated here
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if (changes !== undefined) {
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// we have structural changes. Report them.
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if (json === true) {
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executionResult.error = `Workflow may contain breaking changes`;
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executionResult.changes = changes;
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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console.log(`Workflow ID ${workflowData.id} may contain breaking changes: `, changes);
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}
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if (debug === true) {
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// @ts-ignore
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console.log('Detailed changes: ', diffString(JSON.parse(contents), data, undefined, {keysOnly: true}));
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}
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}else{
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if (json === true) {
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}
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}
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} else {
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if (json === true) {
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executionResult.error = 'Snapshot for not found.';
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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GenericHelpers.logOutput(`Snapshot for ${workflowData.id} not found.`);
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}
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}
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}
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// Save snapshots only after comparing - this is to make sure we're updating
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// After comparing to existing verion.
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if (flags.snapshot !== undefined) {
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const fileName = (flags.snapshot.endsWith(sep) ? flags.snapshot : flags.snapshot + sep) + `${workflowData.id}-snapshot.json`;
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fs.writeFileSync(fileName,serializedData);
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}
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} catch (e) {
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if (json === true) {
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executionResult.error = 'Workflow failed to execute.';
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GenericHelpers.logOutput(JSON.stringify(executionResult, null, 2));
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}else{
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GenericHelpers.logOutput(`Workflow ${workflowData.id} failed to execute.`);
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}
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if (debug === true) {
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console.error(e.message);
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console.error(e.stack);
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}
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}
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}
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this.exit(0);
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}
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}
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