lice

Lice generates license files. No more hunting down licenses from other projects.

• Changes from the original 'Lice' project
• Installation
  • Development Version
  • Autocompletion
• Overview
• I want XXXXXXXXX license in here!
• Usage
• Config File
• Integrate into your projects
• Integration with other tools
• Contribute to the Development
• Changelog

Changes from the original 'Lice' project

Note

This project is forked from the original lice project which seems to have been abandoned and is not compatible with Python 3.12.

I have created a new project rather than issue a PR because the changes are quite large, and no-one is merging PR's on the original project. Otherwise, the Git history is identical to the original.

This version fixes the compatibility issue with Python 3.12, and adds some new features:

• It has an API that can be imported into your Python projects to allow you to generate licenses directly from within your own project.
• Can read from a config file for default values.
• Can optionally copy the license to the clipboard automatically.
• Converted from 'argparse' to 'Typer' for CLI handling.
• It now uses uv for dependency management.
• Fixes the issue where extra spaces and newlines were added to the generated license text. This was considered a bug by at least several users, so it was fixed in version 0.10.0. However, if you want to generate a license with the old style, you can use the --legacy option or set the legacy key in the configuration file to true.
• The code has been modernized and cleaned up, all type-hinting has been added.
• It passes strict linting with the latest 'Ruff' and 'mypy'.
• GitHub actions set up for linting, Renovate and Dependency Review.
• Can output a list of licenses and languages in JSON format for integration with other tools.

In addition, future plans can be seen in the TODO.md file.

Important

This appllication is now only compatible with Python 3.9 and above. If you wish to use an older version, use the original 'lice' package.

However, I'ts the development dependencies that are causing the incompatibility, so I'll look at reducing the Production version in future releases while still requiring Python 3.9 or above for development.

Installation

Installation is standard. If you are using pipx (recommended) install it as:

pipx install lice2

Otherwise use pip as standard:

pip install lice2

Development Version

If you want to install the development version to try out new features before they are release, you can do so with the following command:

pipx install git+https://github.com/seapagan/lice2.git

or

pip install git+https://github.com/seapagan/lice2.git

Autocompletion

To enable autocompletion for lice options, run the following command after installation:

lice --install-completion

Overview

Full usage information is available on the documentation site at https://seapagan.github.io/lice2

Generate a BSD-3 license, the default:

$ lice
Copyright (c) 2013, Jeremy Carbaugh

All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
...

Generate an MIT license:

$ lice mit
The MIT License (MIT)
Copyright (c) 2013 Jeremy Carbaugh

Permission is hereby granted, free of charge, to any person obtaining a copy
...

Generate a BSD-3 license, specifying the year and organization to be used:

$ lice -y 2012 -o "Sunlight Foundation"
Copyright (c) 2012, Sunlight Foundation

All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
...

Generate a BSD-3 license, formatted for python source file:

$ lice -l py

# Copyright (c) 2012, Sunlight Foundation
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
...

Generate a python source file with a BSD-3 license commented in the header:

$ lice -l py -f test
$ ls
test.py
$ cat test.py

# Copyright (c) 2012, Sunlight Foundation
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
...

Generate a source file (language detected by -f extension):

$ lice -f test.c && cat test.c
/*
 * Copyright (c) 2012, Sunlight Foundation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 ...

If organization is not specified, lice will first attempt to use git config to find your name. If not found, it will use the value of the $USER environment variable. If the project name is not specified, the name of the current directory is used. Year will default to the current year.

You can see what variables are available to you for any of the licenses:

$ lice --vars mit
The mit license template contains the following variables:
  year
  organization

I want XXXXXXXXX license in here!

Great! Is it a license that is commonly used? If so, open an issue or, if you are feeling generous, fork and submit a pull request.

Usage

You can get help on the command line with lice --help:

$ lice --help

 Usage: lice [OPTIONS] [license]

 Generates a license template with context variables, and can optionally write this to a file.

╭─ Arguments ───────────────────────────────────────────────────────────────────────────────────────╮
│   license_name      [license]  The license to generate, one of: afl3, agpl3, apache, bsd2, bsd3,  │
│                                cc0, cc_by, cc_by_nc, cc_by_nc_nd, cc_by_nc_sa, cc_by_nd,          │
│                                cc_by_sa, cddl, epl, gpl2, gpl3, isc, lgpl, mit, mpl, wtfpl, zlib  │
│                                [default: bsd3]                                                    │
╰───────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ─────────────────────────────────────────────────────────────────────────────────────────╮
│ --header                            Generate source file header for specified license             │
│ --org                 -o      TEXT  Organization, defaults to .gitconfig or os.environ["USER"]    │
│                                     [default: <as above>]                                         │
│ --proj                -p      TEXT  Name of project, defaults to name of current directory        │
│                                     [default: <current folder>]                                   │
│ --template            -t      TEXT  Path to license template file [default: None]                 │
│ --year                -y      TEXT  Copyright year [default: <current year>]                      │
│ --language            -l      TEXT  Format output for language source file, one of: agda, c, cc,  │
│                                     clj, cpp, css, el, erl, f, f90, h, hpp, hs, html, idr, java,  │
│                                     js, lisp, lua, m, ml, php, pl, py, ps, rb, scm, sh, txt, rs   │
│                                     [default: txt]                                                │
│ --file                -f      TEXT  Name of the output source file (with -l, extension can be     │
│                                     ommitted)                                                     │
│                                     [default: stdout]                                             │
| --clipboard           -c            Copy the generated license to the clipboard                   |
│ --vars                              List template variables for specified license                 │
│ --licenses                          List available license templates and their parameters         │
│ --languages                         List available source code formatting languages               │
│ --install-completion                Install completion for the current shell.                     │
│ --show-completion                   Show completion for the current shell, to copy it or          │
│                                     customize the installation.                                   │
│ --help                -h            Show this message and exit.                                   │
╰───────────────────────────────────────────────────────────────────────────────────────────────────╯

Config File

The app will look for a config file in ~/.config/lice/config.toml. This file can be used to set default values for the license and organization. See the documentation website for more information.

[lice]
default_license = "mit"
organization = "Grant Ramsay"
clipboard = false
legacy = false

The 'default_license' is checked at run-time, and if it is not valid then it falls back to the BSD-3 license.

Integrate into your projects

Lice now includes an API that can be imported into your Python projects! This allows you to generate licenses from within your project. Here is an example:

from lice2.api import Lice

lice = Lice(organization="Awesome Organization", project="Awesome Project")
license_text = lice.get_license("mit")
print(license_text)

There are a few other methods available in the API, see the documentation for more information.

Integration with other tools

This tool can output a list of availailable licenses and languages in JSON format. This can be used to integrate with other non-Python tools. For example, to get a list of licenses in JSON format:

lice --metadata

The output will have 4 keys: licenses, languages, organization and project which another tool can use to populate a list of licenses and languages in a GUI for example. The first two keys are simple lists of strings that can be parsed.

For more fine-grained control, you can use the API above (but only in Python)

Contribute to the Development

If you want to help with development of this project or just hack on the code, you can clone the repository and install the development dependencies with the following command:

uv sync

We use uv to manage the virtual environment and dependencies. See Contributing and the relevant section on the website for details

All contributions are welcome, and I will try to respond to issues and PR's as soon as possible.

Changelog

See the CHANGELOG.md file for details for this fork, and the OLD_CHANGELOG.md file for the original project.