Add health check provider

autoload/health/nukevim.vim

@@ -0,0 +1,3 @@
+function! health#nukevim#check()
+	lua require 'nukevim'.health(nukevim)
+endfunction

lua/module.lua

@@ -44,4 +44,18 @@ end
 function Module:install()
 end
 
+-- For running health check
+-- This should return a table that looks something like:
+-- {
+--     messages = {
+--         {"ok", "This is a message"},
+--         {"info", "This is a message"},
+--         {"warn", "This is a message"},
+--         {"error", "This is a message"},
+--     }
+-- }
+function Module:health()
+	return nil
+end
+
 return Module

lua/module/plugins.lua

@@ -85,4 +85,26 @@ function M:cleanup()
 	package_manager:cleanup()
 end
 
+function M:health()
+	messages = {}
+
+	for idx, plugin in pairs(self.config.plugins) do
+		if (plugin.enable ~= nil and plugin.enable == false) then
+			table.insert(messages, { "info", ('%s: disabled by config'):format(plugin.name) });
+		else
+			if (plugin.requires ~= nil) then
+				for i=1,#plugin.requires do
+					if (not has_command(plugin.requires[i])) then
+						table.insert(messages, { "warn", ('%s: missing dependency %s'):format(plugin.name, plugin.requires[i]) })
+					end
+				end
+			end
+		end
+	end
+
+	return {
+		messages = messages
+	}
+end
+
 return M

lua/module/start.lua

@@ -1,5 +1,9 @@
 local M = require('module'):new()
 
+-- TODO: When enabled, and when in neovim-qt, this seems to overwrite :checkhealth.
+-- Maybe track if it's been triggered _at all_ this session, and if so don't trigger
+-- again.
+
 function M:boot()
 	self.opts = {
 		win = {

lua/nukevim.lua

@@ -52,4 +52,25 @@ function NukeVim:help()
 	vim.cmd(':h nukevim')
 end
 
+function NukeVim:health()
+	health = vim.health or require "health"
+
+	-- TODO: Figure out a way to determine if a module is actually loaded
+	-- and/or add some error handling to some requires() so we can track that
+	-- and report it here.
+	for name, module in pairs(self.modules.modules) do
+		check = module.instance:health()
+
+		if (check ~= nil) then
+			health.report_start(('Module: %s'):format(name))
+
+			for idx,message in ipairs(check.messages) do
+				health['report_' .. message[1]](message[2])
+			end
+		end
+
+	end
+
+end
+
 return NukeVim