Neovim configuration selector

nvims.sh

#!/bin/bash
set -euo pipefail

# Neovim configuration selection
# Provides a fuzzy search for all directories under ~/.config for init.lua

# Usage: nvims

# Requires:
# fzf
# optional: eza or lsd or tree
# optional: mdcat or bat

# Example distro installs
# git clone --depth 1 https://github.com/NvChad/starter        ~/.config/nvchad
# git clone --depth 1 https://github.com/LazyVim/starter       ~/.config/lazy
# git clone --depth 1 https://github.com/AstroNvim/template    ~/.config/astro
# git clone --depth 1 git@github.com:mattleong/CosmicNvim.git  ~/.config/cosmic

# Example personal config installs
# git clone --depth 1 https://github.com/ThePrimeagen/neovimrc ~/.config/prime
# git clone --depth 1 https://github.com/folke/dot.git; mv dot/nvim ~/.config/folke; rm dot -rf
# git clone --depth 1 https://github.com/ayamir/nvimdots       ~/.config/nvimdots

# Support Vim config as a choice
if [[ ! -f ~/.config/vimrc/init.vim ]] && [[ -f ~/.vimrc ]]; then
	mkdir -p ~/.config/vimrc
	ln -sfn ~/.vimrc ~/.config/vimrc/init.vim
fi

configs() {
	find ~/.config -mindepth 2 -maxdepth 2 -name 'init.lua' -o -name 'init.vim' |
		awk -F/ '{print $(NF-1)}'
}

preview() {
	has() {
		command -v "$1" &>/dev/null
	}

	dir="$HOME/.config/$1"
	file="${dir}/README.md"
	if [[ -f "$file" ]]; then
		if has mdcat; then
			mdcat "$file"
		elif has bat; then
			bat -p "$file" --color=always
		else
			cat "$file"
		fi
	else
		if has eza; then
			eza -T "$dir" --color=always
		elif has lsd; then
			lsd --tree "$dir" --color=always
		elif has tree; then
			tree -C "$dir"
		else
			ls -R "$dir"
		fi
	fi
}
export -f preview

choice="$(configs Install Uninstall |
	fzf --prompt 'Neovim Configs> ' --preview 'bash -c "preview {}"')"

echo "NVIM_APPNAME=$choice nvim $*" >&2

export NVIM_APPNAME="$choice"
exec nvim "$@"