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local api = vim.api
local fn = vim.fn
local queries = require'nvim-treesitter.query'
local info = require'nvim-treesitter.info'
local health_start = vim.fn["health#report_start"]
local health_ok = vim.fn['health#report_ok']
local health_error = vim.fn['health#report_error']
local health_warn = vim.fn['health#report_warn']
local M = {}
local function install_health()
health_start('Installation')
if fn.executable('tree-sitter') == 0 then
health_warn('`tree-sitter` executable not found (parser generator, only needed for :TSInstallFromGrammar,'..
' not required for :TSInstall)')
else
local handle = io.popen('tree-sitter -V')
local result = handle:read("*a")
handle:close()
local version = vim.split(result,'\n')[1]:match('[^tree%psitter].*')
health_ok('`tree-sitter` found '..version..' (parser generator, only needed for :TSInstallFromGrammar)')
end
if fn.executable('git') == 0 then
health_error('`git` executable not found.', {
'Install it with your package manager.',
'Check that your `$PATH` is set correctly.'
})
else
health_ok('`git` executable found.')
end
if fn.executable('cc') == 0 then
health_error('`cc` executable not found.', {
'Check that either gcc or clang is in your $PATH'
})
else
health_ok('`cc` executable found.')
end
end
local function query_status(lang, query_group)
local ok, err = pcall(queries.get_query, lang, query_group)
if not ok then
return "x", err
elseif not err then
return "."
else
return "✓"
end
end
function M.checkhealth()
local error_collection = {}
-- Installation dependency checks
install_health()
queries.invalidate_query_cache()
health_start("Parser/Features H L F I")
-- Parser installation checks
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
local multiple_parsers = installed > 1 and "+" or ""
local out = " - "..parser_name..multiple_parsers..string.rep(" ", 15 - (#parser_name + #multiple_parsers))
for _, query_group in pairs(queries.built_in_query_groups) do
local status, err = query_status(parser_name, query_group)
out = out..status.." "
if err then
table.insert(error_collection, {parser_name, query_group, err})
end
end
print(out)
end
end
print([[
Legend: H[ighlight], L[ocals], F[olds], I[ndents]
+) multiple parsers found, only one will be used
x) errors found in the query, try to run :TSUpdate {lang}]])
if #error_collection > 0 then
print('\nThe following errors have been detected:')
for _, p in ipairs(error_collection) do
local lang, type, err = unpack(p)
health_error(lang..'('..type..'): '..err)
end
end
end
return M
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