nvimdev.nvim

Provides some nicities for hacking on Neovim:

• Auto-detect Neovim source tree and :cd to the root.
• Build tags on save.
  • Configured to work well with the generated sources.
• Build cscope.out on save.
  • Commands for looking up callers and callees from the current function.
• Relatively fast linting for C sources (clint.py).
  • Ignored errors list can be fetched/updated via :NvimUpdateClintErrors.
  • Gutter signs reflect importance of warnings.
• Configures Neomake's luacheck maker to use the version from the .deps directory, if it is not available otherwise.
• Filetype settings appropriate for Neovim's source code.
• Hook into vim-projectionist: configure alternate files for the ".vim-src" directory, and a command to diff against the same file in Vim.

Why?

Neovim has a pretty large code base and is full of Vim's rich and mysterious history. I have little knowledge of either and wrote a script to help me get around and automate some things. People have shown interest in using it, so it's now a plugin that will make maintenance easier.

Installation

😑

Requirements

• Neomake
• Python 3

Config

g:nvimdev_auto_init (default 1)

Automatically enable when within the Neovim source tree, or one of its files are loaded.

It can be manually enabled with:

call nvimdev#init("path/to/neovim")

It should always be set to the actual Neovim root.

g:nvimdev_auto_cd (default 1)

Automatically :cd to the Neovim root after init.

g:nvimdev_auto_ctags (default 0)

Automatically generate tags.

For best results, use universal-ctags.

g:nvimdev_auto_cscope (default 0)

Automatically generate cscope.out. Requires cscope.

The following commands will be added to .c buffers:

• :Callers - displays a list of locations calling a function
• :Callees - displays a list of functions called by a function

Each command takes an optional name. Without arguments, the name of the function at the cursor location is used.

If you want to display the results as quickfix items:

set cscopequickfix=s-,c-,d-,i-,t-,e-,a-

Disclaimer: I don't use cscope much and this didn't turn out as awesome as I hoped it would. Using the commands above, or :cscope with quickfix enabled will cause the current buffer to jump to the first match. Also, it results in a bunch of duplicates since I think cscope indexes functions with any aliased return types it finds. I'm tempted to write a dumb script that uses the tags file to build a cross refrence database.

g:nvimdev_auto_lint (default 1)

Adds nvim linter to g:neomake_c_enabled_makers.

g:nvimdev_build_readonly (default 1)

Set files loaded from build/ or .deps/ as readonly.

Useful plugins

• deoplete.nvim: Completions!
• deoplete-clang2: (Electric Boogaloo) C Completions! No configuration needed with Neovim's source.
• wstrip.vim: Strip trailing whitespace on save, but only on lines you've changed.
• helpful.vim: Displays version information for helptags.
• dyslexic.vim: Mistyping variables in giant source files suck.

TODO

• Command to run tests