mirror of
https://github.com/balena-io/balena-cli.git
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667358b23e
This saves ~100ms for me on startup with no fast-boot cache and ~50ms with a fast-boot cache Change-type: patch
90 lines
2.5 KiB
TypeScript
90 lines
2.5 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 { flags } from '@oclif/command';
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import Command from '../command';
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import { stripIndent } from '../utils/lazy';
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interface FlagsDef {
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all?: boolean;
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json?: boolean;
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help: void;
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}
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export interface JsonVersions {
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'balena-cli': string;
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'Node.js': string;
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}
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export default class VersionCmd extends Command {
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public static description = stripIndent`
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Display version information for the balena CLI and/or Node.js.
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Display version information for the balena CLI and/or Node.js.
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The --json option is recommended when scripting the output of this command,
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because the JSON format is less likely to change and it better represents
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data types like lists and empty strings. The 'jq' utility may be helpful
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in shell scripts (https://stedolan.github.io/jq/manual/).
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`;
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public static examples = [
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'$ balena version',
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'$ balena version -a',
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'$ balena version -j',
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];
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public static usage = 'version';
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public static flags: flags.Input<FlagsDef> = {
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all: flags.boolean({
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char: 'a',
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default: false,
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description:
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'include version information for additional components (Node.js)',
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}),
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json: flags.boolean({
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char: 'j',
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default: false,
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description:
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'output version information in JSON format for programmatic use',
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}),
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help: flags.help({ char: 'h' }),
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};
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public async run() {
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const { flags: options } = this.parse<FlagsDef, {}>(VersionCmd);
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const versions: JsonVersions = {
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'balena-cli': (await import('../../package.json')).version,
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'Node.js':
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process.version && process.version.startsWith('v')
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? process.version.slice(1)
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: process.version,
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};
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if (options.json) {
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console.log(JSON.stringify(versions, null, 4));
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} else {
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if (options.all) {
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console.log(`balena-cli version "${versions['balena-cli']}"`);
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console.log(`Node.js version "${versions['Node.js']}"`);
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} else {
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// backwards compatibility
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console.log(versions['balena-cli']);
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}
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}
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}
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}
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