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Contributing to nvim-tree.lua

Thank you for contributing.

See Development for environment setup, tips and tools.

Tools

Following are used during CI and strongly recommended during local development.

Lint: luacheck

Style: StyLua

Language server: luals

You can install them via you OS package manager e.g. pacman, brew or other via other package managers such as cargo or luarocks

Quality

The following quality checks are mandatory and are performed during CI. They run on the entire lua directory and return 1 on any failure.

You can run them all via make or make all

You can setup git hooks to run all checks by running scripts/setup-hooks.sh

lint

  1. Runs luacheck quietly using .luacheck settings
make lint

style

  1. Runs stylua using .stylua.toml settings
  2. Runs scripts/doc-comments.sh to validate annotated documentation
make style

You can automatically fix stylua issues via:

make style-fix

check

  1. Runs the checks that the LSP lua language server runs inside nvim using .luarc.json via scripts/luals-check.sh
make check

Assumes $VIMRUNTIME is /usr/share/nvim/runtime. Adjust as necessary e.g.

VIMRUNTIME="/my/path/to/runtime" make check

Adding New Actions

To add a new action, add a file in actions/name-of-the-action.lua. You should export a setup function if some configuration is needed.

Once you did, you should run make help-update

Documentation

When adding new options, you should declare the defaults in the main nvim-tree.lua file.

Documentation for options should also be added to nvim-tree-opts in doc/nvim-tree-lua.txt

Pull Request

Please reference any issues in the description e.g. "resolves #1234".

Please check "allow edits by maintainers" to allow nvim-tree developers to make small changes such as documentation tweaks.

A test case to reproduce the issue is required. A "Clean Room" Replication is preferred.