@heroku-cli/command/lib/flags/app.js

base class for Heroku CLI commands

import { Errors, Flags } from '@oclif/core';
import { configRemote, getGitRemotes } from '../git.js';
class MultipleRemotesError extends Errors.CLIError {
    constructor(gitRemotes) {
        super(`Multiple apps in git remotes
  Usage: --remote ${gitRemotes[1].remote}
     or: --app ${gitRemotes[1].app}
  Your local git repository has more than 1 app referenced in git remotes.
  Because of this, we can't determine which app you want to run this command against.
  Specify the app you want with --app or --remote.
  Heroku remotes in repo:
  ${gitRemotes.map(r => `${r.app} (${r.remote})`).join('\n')}

  https://devcenter.heroku.com/articles/multiple-environments`);
    }
}
export const app = Flags.custom({
    char: 'a',
    async default({ flags, options }) {
        const envApp = process.env.HEROKU_APP;
        if (envApp)
            return envApp;
        const gitRemotes = getGitRemotes(flags.remote || configRemote());
        if (gitRemotes.length === 1)
            return gitRemotes[0].app;
        if (flags.remote && gitRemotes.length === 0) {
            Errors.error(`remote ${flags.remote} not found in git remotes`);
        }
        if (gitRemotes.length > 1 && options.required) {
            throw new MultipleRemotesError(gitRemotes);
        }
    },
    description: 'app to run command against',
});
export const remote = Flags.custom({
    char: 'r',
    description: 'git remote of app to use',
});