feat(nix): add health

lua/cp/health.lua

@@ -19,11 +19,13 @@ local function check()
   end
 
   if utils.is_nix_build() then
-    vim.health.ok('Nix-built Python environment detected')
+    local source = utils.is_nix_discovered() and 'runtime discovery' or 'flake install'
+    vim.health.ok('Nix Python environment detected (' .. source .. ')')
     local py = utils.get_nix_python()
+    vim.health.info('Python: ' .. py)
     local r = vim.system({ py, '--version' }, { text = true }):wait()
     if r.code == 0 then
-      vim.health.info('Python: ' .. r.stdout:gsub('\n', ''))
+      vim.health.info('Python version: ' .. r.stdout:gsub('\n', ''))
     end
   else
     if vim.fn.executable('uv') == 1 then
@@ -36,6 +38,10 @@ local function check()
       vim.health.warn('uv not found (install https://docs.astral.sh/uv/ for scraping)')
     end
 
+    if vim.fn.executable('nix') == 1 then
+      vim.health.info('nix available but Python environment not resolved via nix')
+    end
+
     local plugin_path = utils.get_plugin_path()
     local venv_dir = plugin_path .. '/.venv'
     if vim.fn.isdirectory(venv_dir) == 1 then
@@ -52,7 +58,7 @@ local function check()
     vim.health.error('GNU time not found: ' .. (time_cap.reason or ''))
   end
 
-  local timeout_cap = utils.time_capability()
+  local timeout_cap = utils.timeout_capability()
   if timeout_cap.ok then
     vim.health.ok('GNU timeout found: ' .. timeout_cap.path)
   else

lua/cp/utils.lua

@@ -3,6 +3,7 @@ local M = {}
 local logger = require('cp.log')
 
 local _nix_python = nil
+local _nix_discovered = false
 
 local uname = vim.loop.os_uname()
 
@@ -89,6 +90,10 @@ function M.get_nix_python()
   return _nix_python
 end
 
+function M.is_nix_discovered()
+  return _nix_discovered
+end
+
 function M.get_python_cmd(module, plugin_path)
   if _nix_python then
     return { _nix_python, '-m', 'scrapers.' .. module }
@@ -113,6 +118,7 @@ local function discover_nix_python()
   end
 
   local plugin_path = M.get_plugin_path()
+  logger.log('Building Python environment with nix...', nil, true)
   local result = vim
     .system(
       { 'nix', 'build', plugin_path .. '#pythonEnv', '--no-link', '--print-out-paths' },
@@ -141,6 +147,7 @@ local function discover_nix_python()
   end
 
   _nix_python = python_path
+  _nix_discovered = true
   return true
 end