list.ts

import { flags } from "@oclif/command";
import chalk from 'chalk';
import Table from 'cli-table';
import AppBaseCommand from "../../base-app-command";

export default class List extends AppBaseCommand {
  static description = "List environment variables for an app";

  static flags = {
    ...AppBaseCommand.flags,
    help: flags.help({
      char: "h",
      description: "show help for the env command",
    }),
    format: flags.string({
      char: "f",
      description: "specify output format",
      default: "table",
      options: ["table", "dotenv"],
      parse: (input) => input.toLowerCase(),
    })
  };

  async run(): Promise<void> {

    if (!(this.client && this.platformApp)) {
      this.error("Initialization failed - invalid state");
      return;
    }

    try {
      const configurationKeys = await this.client.configuration.list(this.platformApp.id);

      if (!(configurationKeys && configurationKeys.length > 0)) {
        this.log(`${this.platformApp.name} has no environment variables set`)
        return;
      }

      const { flags } = this.parse(List);
      if (flags.format === "table") {

        const table = new Table({
          head: [
            chalk.green('Name'),
            chalk.green("Value")
          ]
        });
        configurationKeys.forEach(key => {
          table.push([key.name, key.value]);
        });
        this.log(table.toString());
      } else if (flags.format === "dotenv") {

        configurationKeys.forEach(key => {
          this.log(`${key.name}=${key.value}`);
        });
      }

    } catch (error) {
      return this.error("Error retrieving environment variables", {
        exit: 1,
      });
    }
  }
}