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oclif
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Description

Node.js Open CLI Framework. Built with 💜 by Heroku.

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oclif: Node.JS Open CLI Framework

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🗒 Description

This is a framework for building CLIs in Node.js. This framework was built out of the Heroku CLI but generalized to build any custom CLI. It's designed both for single-file CLIs with a few flag options, or for very complex CLIs that have subcommands (like git or heroku).

See the docs for more information.

🚀 Getting Started Tutorial

The Getting Started tutorial is a step-by-step guide to introduce you to oclif. If you have not developed anything in a command line before, this tutorial is a great place to get started.

✨ Features

  • Flag/Argument parsing - No CLI framework would be complete without a flag parser. We've built a custom one from years of experimentation that we feel consistently handles user input flexible enough for the user to be able to use the CLI in ways they expect, but without compromising strictness guarantees to the developer.
  • Super Speed - The overhead for running an oclif CLI command is almost nothing. It requires very few dependencies (only 35 dependencies in a minimal setup—including all transitive dependencies). Also, only the command to be executed will be required with node. So large CLIs with many commands will load equally as fast as a small one with a single command.
  • CLI Generator - Run a single command to scaffold out a fully functional CLI and get started quickly. See Usage below.
  • Testing Helpers - We've put a lot of work into making commands easier to test and mock out stdout/stderr. The generator will automatically create scaffolded tests.
  • Auto-documentation - By default you can pass
    --help
    to the CLI to get help such as flag options and argument information. This information is also automatically placed in the README whenever the npm package of the CLI is published. See the multi-command CLI example
  • Plugins - Using plugins, users of the CLI can extend it with new functionality, a CLI can be split into modular components, and functionality can be shared amongst multiple CLIs. See Building your own plugin.
  • Hooks - Use lifecycle hooks to run functionality any time a CLI starts, or on custom triggers. Use this whenever custom functionality needs to be shared between various components of the CLI.
  • TypeScript (or not) - Everything in the core of oclif is written in TypeScript and the generator can build fully configured TypeScript CLIs or plain JavaScript CLIs. By virtue of static properties in TypeScript the syntax is a bit cleaner in TypeScript—but everything will work no matter which language you choose. If you use plugins support, the CLI will automatically use
    ts-node
    to run the plugins enabling you to use TypeScript with minimal-to-no boilerplate needed for any oclif CLI.
  • Auto-updating Installers - oclif can package your CLI into different installers that will not require the user to already have node installed on the machine. These can be made auto-updatable by using plugin-update.
  • Everything is Customizable - Pretty much anything can be swapped out and replaced inside oclif if needed—including the arg/flag parser.
  • Autocomplete - Automatically include autocomplete for your CLI. This includes not only command names and flag names, but flag values as well. For example, it's possible to configure the Heroku CLI to have completions for Heroku app names: <!--* Coming soon: man pages - In addition to in-CLI help through
    -help
    and the README markdown help generation, the CLI can also automatically create man pages for all of its commands.-->
$ heroku info --app= # will complete with all the Heroku apps a user has in their account

📌 Requirements

Currently, Node 8+ is supported. We support the LTS versions of Node. You can add the node package to your CLI to ensure users are running a specific version of Node.

🌈 CLI Types

With oclif you can create 2 different CLI types, single and multi.

Single CLIs are like

ls
or
cat
. They can accept arguments and flags. Single CLIs can optionally be a single file.

Multi CLIs are like

git
or
heroku
. They have subcommands that are themselves single CLIs. In the
package.json
there is a field
oclif.commands
that points to a directory. This directory contains all the subcommands for the CLI. For example, if you had a CLI called
mycli
with the commands
mycli create
and
mycli destroy
, you would have a project like the following:
package.json
src/
└── commands/
    ├── create.ts
    └── destroy.ts

Multi-command CLIs may also include plugins.

🏗 Usage

Creating a single-command CLI:

$ npx oclif single mynewcli
? npm package name (mynewcli): mynewcli
$ cd mynewcli
$ ./bin/run
hello world from ./src/index.js!

Creating a multi-command CLI:

$ npx oclif multi mynewcli
? npm package name (mynewcli): mynewcli
$ cd mynewcli
$ ./bin/run --version
mynewcli/0.0.0 darwin-x64 node-v9.5.0
$ ./bin/run --help
USAGE
  $ mynewcli [COMMAND]

COMMANDS hello help display help for mynewcli

$ ./bin/run hello hello world from ./src/hello.js!

📚 Examples

🔨 Commands

oclif generate NAME

generate a new CLI

USAGE
  $ oclif generate [NAME]

ARGUMENTS NAME directory name of new project

DESCRIPTION generate a new CLI

This will clone the template repo 'oclif/hello-world' and update package properties

See code: src/commands/generate.ts

oclif help [COMMAND]

display help for oclif

USAGE
  $ oclif help [COMMAND] [--all]

ARGUMENTS COMMAND command to show help for

FLAGS --all see all commands in CLI

DESCRIPTION display help for oclif

See code: @oclif/plugin-help

oclif manifest [PATH]

generates plugin manifest json

USAGE
  $ oclif manifest [PATH]

ARGUMENTS PATH [default: .] path to plugin

DESCRIPTION generates plugin manifest json

See code: src/commands/manifest.ts

oclif pack:deb

pack CLI into debian package

USAGE
  $ oclif pack:deb -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION pack CLI into debian package

See code: src/commands/pack/deb.ts

oclif pack:macos

pack CLI into macOS .pkg

USAGE
  $ oclif pack:macos -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION pack CLI into macOS .pkg

See code: src/commands/pack/macos.ts

oclif pack:tarballs

packages oclif CLI into tarballs

USAGE
  $ oclif pack:tarballs -r  [-t ] [--xz]

FLAGS -r, --root= (required) [default: .] path to oclif CLI root -t, --targets= [default: linux-x64,linux-arm,win32-x64,win32-x86,darwin-x64] comma-separated targets to pack (e.g.: linux-arm,win32-x64) --[no-]xz also build xz

DESCRIPTION packages oclif CLI into tarballs

This can be used to create oclif CLIs that use the system node or that come preloaded with a node binary.

See code: src/commands/pack/tarballs.ts

oclif pack:win

create windows installer from oclif CLI

USAGE
  $ oclif pack:win -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION create windows installer from oclif CLI

This command requires WINDOWS_SIGNING (prefixed with the name of your executable, e.g. OCLIF_WINDOWS_SIGNING_PASS) to be set in the environment

See code: src/commands/pack/win.ts

oclif promote

promote CLI builds to a S3 release channel

USAGE
  $ oclif promote -r  --version  --sha  --channel  [-t ] [-d] [-m] [-w]
    [-a ] [--xz] [--indexes]

FLAGS -a, --max-age= [default: 86400] cache control max-age in seconds -d, --deb promote debian artifacts -m, --macos promote macOS pkg -r, --root= (required) [default: .] path to the oclif CLI project root -t, --targets= [default: linux-x64,linux-arm,win32-x64,win32-x86,darwin-x64] comma-separated targets to promote (e.g.: linux-arm,win32-x64) -w, --win promote Windows exe --channel= (required) [default: stable] which channel to promote to --indexes append the promoted urls into the index files --sha= (required) 7-digit short git commit SHA of the CLI to promote --version= (required) semantic version of the CLI to promote --[no-]xz also upload xz

DESCRIPTION promote CLI builds to a S3 release channel

See code: src/commands/promote.ts

oclif readme

adds commands to README.md in current directory

USAGE
  $ oclif readme --dir  [--multi]

FLAGS --dir= (required) [default: docs] output directory for multi docs --multi create a different markdown page for each topic

DESCRIPTION adds commands to README.md in current directory

The readme must have any of the following tags inside of it for it to be replaced or else it will do nothing:

Usage

Commands

Customize the code URL prefix by setting oclif.repositoryPrefix in package.json.

See code: src/commands/readme.ts

oclif upload:deb

upload deb package built with pack:deb

USAGE
  $ oclif upload:deb -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION upload deb package built with pack:deb

See code: src/commands/upload/deb.ts

oclif upload:macos

upload macos installers built with pack:macos

USAGE
  $ oclif upload:macos -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION upload macos installers built with pack:macos

See code: src/commands/upload/macos.ts

oclif upload:tarballs

upload an oclif CLI to S3

USAGE
  $ oclif upload:tarballs -r  [-t ] [--xz]

FLAGS -r, --root= (required) [default: .] path to oclif CLI root -t, --targets= [default: linux-x64,linux-arm,win32-x64,win32-x86,darwin-x64] comma-separated targets to upload (e.g.: linux-arm,win32-x64) --[no-]xz also upload xz

DESCRIPTION upload an oclif CLI to S3

"aws-sdk" will need to be installed as a devDependency to upload.

See code: src/commands/upload/tarballs.ts

oclif upload:win

upload windows installers built with pack:win

USAGE
  $ oclif upload:win -r 

FLAGS -r, --root= (required) [default: .] path to oclif CLI root

DESCRIPTION upload windows installers built with pack:win

See code: src/commands/upload/win.ts <!-- commandsstop -->

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📣 Feedback

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