mirror of
https://github.com/balena-io/balena-cli.git
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50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright 2019 Balena Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import * as Config from '@oclif/config';
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/**
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* This class is a partial copy-and-paste of
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* @oclif/plugin-help/command/CommandHelp, which is used to generate oclif's
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* command help output.
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*/
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export class CommandHelp {
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constructor(public command: { args?: any[] }) {}
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protected arg(arg: Config.Command['args'][0]): string {
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const name = arg.name.toUpperCase();
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if (arg.required) {
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return `${name}`;
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}
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return `[${name}]`;
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}
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public defaultUsage(): string {
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return CommandHelp.compact([
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// this.command.id,
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(this.command.args || [])
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.filter(a => !a.hidden)
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.map(a => this.arg(a))
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.join(' '),
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]).join(' ');
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}
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public static compact<T>(array: Array<T | undefined>): T[] {
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return array.filter((a): a is T => !!a);
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}
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}
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