fix(health): only check installed parsers

This is to avoid awfully long checkhealths. And not installed parsers
can be infered from the fact that they are not listed.

1 files changed, 7 insertions, 20 deletions

diff --git a/lua/nvim-treesitter/health.lua b/lua/nvim-treesitter/health.lua
index cfb823c5f..c5f592745 100644
--- a/lua/nvim-treesitter/health.lua
+++ b/lua/nvim-treesitter/health.lua
@@ -2,7 +2,7 @@ local api = vim.api
 local fn = vim.fn
 
 local queries = require'nvim-treesitter.query'
-local parsers = require'nvim-treesitter.parsers'
+local info = require'nvim-treesitter.info'
 
 local health_start = vim.fn["health#report_start"]
 local health_ok = vim.fn['health#report_ok']
@@ -12,6 +12,7 @@ local health_error = vim.fn['health#report_error']
 local M = {}
 
 local function install_health()
+  health_start('Installation')
   if fn.executable('git') == 0 then
     health_error('`git` executable not found.', {
         'Install it with your package manager.',
@@ -44,38 +45,24 @@ end
 
 function M.checkhealth()
   -- Installation dependency checks
-  health_start('Installation')
   install_health()
-
-  local missing_parsers = {}
   -- Parser installation checks
-  for _, parser_name in pairs(parsers.available_parsers()) do
+  for _, parser_name in pairs(info.installed_parsers()) do
     local installed = #api.nvim_get_runtime_file('parser/'..parser_name..'.so', false)
 
     -- Only print informations about installed parsers
-    if installed == 1 then
+    if installed >= 1 then
+      if installed > 1 then
+        health_warn(string.format("Multiple parsers found for %s, only %s will be used.", parser_name, installed[1]))
+      end
       health_start(parser_name .. " parser healthcheck")
       health_ok(parser_name .. " parser found.")
 
       for _, query_group in pairs(queries.built_in_query_groups) do
         query_health(parser_name, query_group)
       end
-
-    elseif installed > 1 then
-      health_warn(string.format("Multiple parsers found for %s, only %s will be used.", parser_name, installed[1]))
-    else
-      table.insert(missing_parsers, parser_name)
     end
   end
-
-  -- Add informations on parsers we dont find
-  if #missing_parsers > 0 then
-    health_start('Missing parsers')
-
-    -- TODO(vigoux): The installation command should be changed so that its easier to find
-    health_warn('Some parsers are not installed:\n' .. table.concat(missing_parsers, '\n'), {
-      "Install them using `:TSInstall language"})
-  end
 end
 
 return M