⚡ Improve CLI export/import and add missing files

packages/cli/commands/import/workflow.ts

@@ -0,0 +1,78 @@
+import {
+	Command,
+	flags,
+} from '@oclif/command';
+
+import {
+	Db,
+	GenericHelpers,
+} from '../../src';
+
+import * as fs from 'fs';
+import * as glob from 'glob-promise';
+import * as path from 'path';
+
+export class ImportWorkflowsCommand extends Command {
+	static description = 'Import workflows';
+
+	static examples = [
+		`$ n8n import:workflow --input=file.json`,
+		`$ n8n import:workflow --separate --input=backups/latest/`,
+	];
+
+	static flags = {
+		help: flags.help({ char: 'h' }),
+		input: flags.string({
+			char: 'i',
+			description: 'Input file name or directory if --separate is used',
+		}),
+		separate: flags.boolean({
+			description: 'Imports *.json files from directory provided by --input',
+		}),
+	};
+
+	async run() {
+		const { flags } = this.parse(ImportWorkflowsCommand);
+
+		if (!flags.input) {
+			GenericHelpers.logOutput(`An input file or directory with --input must be provided`);
+			return;
+		}
+
+		if (flags.separate) {
+			if (fs.existsSync(flags.input)) {
+				if (!fs.lstatSync(flags.input).isDirectory()) {
+					GenericHelpers.logOutput(`The paramenter --input must be a directory`);
+					return;
+				}
+			}
+		}
+
+		try {
+			await Db.init();
+			let i;
+			if (flags.separate) {
+				const files = await glob((flags.input.endsWith(path.sep) ? flags.input : flags.input + path.sep) + '*.json');
+				for (i = 0; i < files.length; i++) {
+					const workflow = JSON.parse(fs.readFileSync(files[i], { encoding: 'utf8' }));
+					await Db.collections.Workflow!.save(workflow);
+				}
+			} else {
+				const fileContents = JSON.parse(fs.readFileSync(flags.input, { encoding: 'utf8' }));
+
+				if (!Array.isArray(fileContents)) {
+					throw new Error(`File does not seem to contain workflows.`);
+				}
+
+				for (i = 0; i < fileContents.length; i++) {
+					await Db.collections.Workflow!.save(fileContents[i]);
+				}
+			}
+
+			console.log('Successfully imported', i, i === 1 ? 'workflow.' : 'workflows.');
+		} catch (error) {
+			this.error(error.message);
+			this.exit(1);
+		}
+	}
+}