oclif
Node.js Open CLI Framework
README
oclif: Node.JS Open CLI Framework
=================================
🗒 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).
🚀 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 - Everything in the core of oclif is written in TypeScript and the generator will build fully configured TypeScript CLIs. 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:
- ```
- $ heroku info --app=<tab><tab> # will complete with all the Heroku apps a user has in their account
- ```
📌 Requirements
Currently, Node 12+ 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.
📌 Migrating from V1
If you have been using version 1 of the [oclif CLI](https://github.com/oclif/oclif/tree/v1.18.4) there are some important differences to note when using the latest version.
Breaking Changes
- oclif multi, oclif plugin, and oclif single have all been removed in favor of oclif generate, which generates an oclif based CLI using the hello-world example repo.
- The reason is that there's not enough of a meaningful difference between a "multi command cli", a "single command cli", and a "plugin" to justify the maintenance cost. The generated CLI can be easily used for any of those use cases.
- oclif hook is now oclif generate:hook
- oclif command is now oclif generate:command
New Commands
Version 2 now includes all the commands from the [oclif-dev CLI](https://github.com/oclif/dev-cli). This means that you can now use a single CLI for all your oclif needs. These commands include:
- oclif manifest
- oclif pack
- oclif pack:deb
- oclif pack:macos
- oclif pack:win
- oclif upload (formerly known as oclif-dev publish)
- oclif upload:deb (formerly known as oclif-dev publish:deb)
- oclif upload:macos (formerly known as oclif-dev publish:macos)
- oclif upload:win (formerly known as oclif-dev publish:win)
- oclif readme
🏗 Usage
Creating a CLI:
- ```sh-session
- $ npx oclif generate 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](#oclif-generate-name)
[oclif generate command NAME](#oclif-generate-command-name)
[oclif generate hook NAME](#oclif-generate-hook-name)
[oclif help [COMMAND]](#oclif-help-command)
[oclif manifest [PATH]](#oclif-manifest-path)
[oclif pack deb](#oclif-pack-deb)
[oclif pack macos](#oclif-pack-macos)
[oclif pack tarballs](#oclif-pack-tarballs)
[oclif pack win](#oclif-pack-win)
[oclif promote](#oclif-promote)
[oclif readme](#oclif-readme)
[oclif upload deb](#oclif-upload-deb)
[oclif upload macos](#oclif-upload-macos)
[oclif upload tarballs](#oclif-upload-tarballs)
[oclif upload win](#oclif-upload-win)
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 generate command NAME
add a command to an existing CLI or plugin
- ```
- USAGE
- $ oclif generate command [NAME] [--force]
- ARGUMENTS
- NAME name of command
- FLAGS
- --force overwrite existing files
- DESCRIPTION
- add a command to an existing CLI or plugin
- ```
oclif generate hook NAME
add a hook to an existing CLI or plugin
- ```
- USAGE
- $ oclif generate hook [NAME] [--force] [--event <value>]
- ARGUMENTS
- NAME name of hook (snake_case)
- FLAGS
- --event=<value> [default: init] event to run hook on
- --force overwrite existing files
- DESCRIPTION
- add a hook to an existing CLI or plugin
- ```
oclif help [COMMAND]
Display help for oclif.
- ```
- USAGE
- $ oclif help [COMMAND] [-n]
- ARGUMENTS
- COMMAND Command to show help for.
- FLAGS
- -n, --nested-commands Include all nested commands in the output.
- 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 <value> [-t <value>]
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- -t, --tarball=<value> optionally specify a path to a tarball already generated by NPM
- DESCRIPTION
- pack CLI into debian package
- ```
oclif pack macos
pack CLI into macOS .pkg
- ```
- USAGE
- $ oclif pack macos -r <value> [-t <value>]
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- -t, --tarball=<value> optionally specify a path to a tarball already generated by NPM
- DESCRIPTION
- pack CLI into macOS .pkg
- ```
oclif pack tarballs
packages oclif CLI into tarballs
- ```
- USAGE
- $ oclif pack tarballs -r <value> [-t <value>] [--xz] [--parallel] [-l <value>]
- FLAGS
- -l, --tarball=<value> optionally specify a path to a tarball already generated by NPM
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- -t, --targets=<value> comma-separated targets to pack (e.g.: linux-arm,win32-x64)
- --parallel build tarballs in parallel
- --[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.
- ```
oclif pack win
create windows installer from oclif CLI
- ```
- USAGE
- $ oclif pack win -r <value> [-t <value>]
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- -t, --tarball=<value> optionally specify a path to a tarball already generated by NPM
- 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
- ```
oclif promote
promote CLI builds to a S3 release channel
- ```
- USAGE
- $ oclif promote -r <value> --version <value> --sha <value> --channel <value> [-t <value>] [-d] [-m] [-w]
- [-a <value>] [--xz] [--indexes]
- FLAGS
- -a, --max-age=<value> [default: 86400] cache control max-age in seconds
- -d, --deb promote debian artifacts
- -m, --macos promote macOS pkg
- -r, --root=<value> (required) [default: .] path to the oclif CLI project root
- -t, --targets=<value> comma-separated targets to promote (e.g.: linux-arm,win32-x64)
- -w, --win promote Windows exe
- --channel=<value> (required) [default: stable] which channel to promote to
- --indexes append the promoted urls into the index files
- --sha=<value> (required) 7-digit short git commit SHA of the CLI to promote
- --version=<value> (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 <value> [--multi] [--aliases]
- FLAGS
- --[no-]aliases include aliases in the command list
- --dir=<value> (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 <value>
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- DESCRIPTION
- upload deb package built with pack:deb
- ```
oclif upload macos
upload macos installers built with pack:macos
- ```
- USAGE
- $ oclif upload macos -r <value>
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- DESCRIPTION
- upload macos installers built with pack:macos
- ```
oclif upload tarballs
upload an oclif CLI to S3
- ```
- USAGE
- $ oclif upload tarballs -r <value> [-t <value>] [--xz]
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- -t, --targets=<value> 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.
- ```
oclif upload win
upload windows installers built with pack:win
- ```
- USAGE
- $ oclif upload win -r <value>
- FLAGS
- -r, --root=<value> (required) [default: .] path to oclif CLI root
- DESCRIPTION
- upload windows installers built with pack:win
- ```
🏭 Related Repositories
@oclif/core - Base library for oclif. This can be used directly without the generator.
@oclif/cli-ux - Library for common CLI UI utilities.
@oclif/test - Test helper for oclif.