feat(hurl.nvim): improve treesitter parser detection and warnings

lua/hurl/health.lua

@@ -2,6 +2,7 @@ local M = {}
 
 local start = vim.health.start or vim.health.report_start
 local ok = vim.health.ok or vim.health.report_ok
+local warn = vim.health.warn or vim.health.report_warn
 local error = vim.health.error or vim.health.report_error
 
 -- Add health check for default formatter: jq and prettier
@@ -22,22 +23,12 @@ M.check = function()
     ok('prettier found')
   end
 
-  local ts
-  if
-    xpcall(function()
-      ts = require('nvim-treesitter-language')
-    end, function(e)
-      ts = e
-    end)
-  then
-    ok('nvim-treesitter found')
-    if ts.language.get_lang('hurl') == 'hurl' then
-      ok('  hurl parser installed')
-    else
-      error('  hurl parser not found')
-    end
+  if require('hurl.utils').is_hurl_parser_available then
+    ok('treesitter[hurl]: installed')
   else
-    error('nvim-treesitter not found')
+    warn(
+      'treesitter[hurl]: missing parser for syntax highlighting. Install "nvim-treesitter/nvim-treesitter" plugin and run ":TSInstall hurl".'
+    )
   end
 
   ok('hurl.nvim: All good!')

lua/hurl/main.lua

@@ -366,8 +366,8 @@ function M.setup()
 
   -- Run request at current line if there is a HTTP method
   utils.create_cmd('HurlRunnerAt', function(opts)
-    local is_nightly_build = utils.is_nightly()
-    local result = is_nightly_build and http.find_hurl_entry_positions_in_buffer()
+    local is_support_hurl = utils.is_nightly() or utils.is_hurl_parser_available
+    local result = is_support_hurl and http.find_hurl_entry_positions_in_buffer()
       or http.find_http_verb_positions_in_buffer()
     if result.current > 0 and result.start_line and result.end_line then
       utils.log_info(
@@ -382,8 +382,8 @@ function M.setup()
 
   -- Run request to current entry if there is a HTTP method
   utils.create_cmd('HurlRunnerToEntry', function(opts)
-    local is_nightly_build = utils.is_nightly()
-    local result = is_nightly_build and http.find_hurl_entry_positions_in_buffer()
+    local is_support_hurl = utils.is_nightly() or utils.is_hurl_parser_available
+    local result = is_support_hurl and http.find_hurl_entry_positions_in_buffer()
       or http.find_http_verb_positions_in_buffer()
     utils.log_info('hurl: running request to entry #' .. vim.inspect(result))
     if result.current > 0 then
@@ -412,8 +412,8 @@ function M.setup()
   utils.create_cmd('HurlVerbose', function(opts)
     -- It should be the same logic with run at current line but with verbose flag
     -- The response will be sent to quickfix
-    local is_nightly_build = utils.is_nightly()
-    local result = is_nightly_build and http.find_hurl_entry_positions_in_buffer()
+    local is_support_hurl = utils.is_nightly() or utils.is_hurl_parser_available
+    local result = is_support_hurl and http.find_hurl_entry_positions_in_buffer()
       or http.find_http_verb_positions_in_buffer()
     if result.current > 0 and result.start_line and result.end_line then
       utils.log_info(

lua/hurl/utils.lua

@@ -169,6 +169,8 @@ util.is_html_response = function(content_type)
   return string.find(content_type, 'text/html') ~= nil
 end
 
+--- Check if nvim is running in nightly or stable version
+---@return boolean
 util.is_nightly = function()
   local is_stable_version = false
   if vim.fn.has('nvim-0.10.0') == 1 then
@@ -178,4 +180,14 @@ util.is_nightly = function()
   return is_stable_version
 end
 
+--- Check if a treesitter parser is available
+---@param ft string
+---@return boolean
+local function treesitter_parser_available(ft)
+  local res, parser = pcall(vim.treesitter.get_parser, 0, ft)
+  return res and parser ~= nil
+end
+
+util.is_hurl_parser_available = treesitter_parser_available('hurl')
+
 return util