feat: add healthcheck

README.md

@@ -10,6 +10,7 @@ So far I have done some maintenance work:
 - feat: yazi pre-selects the current file when opened
 - test: add simple testing setup for future development
 - feat: can optionally open yazi instead of netrw for directories
+- feat: health check for yazi
 
 If you'd like to collaborate, contact me via GitHub issues.
 
@@ -41,3 +42,5 @@ Using lazy.nvim:
   },
 }
 ```
+
+You can run `:checkhealth yazi` to see if the plugin is installed and working.

lua/yazi/health.lua

@@ -0,0 +1,32 @@
+-- see :help :checkhealth
+-- https://github.com/neovim/neovim/blob/b7779c514632f8c7f791c92203a96d43fffa57c6/runtime/doc/pi_health.txt#L17
+return {
+  check = function()
+    vim.health.start('yazi')
+
+    if vim.fn.executable('yazi') ~= 1 then
+      vim.health.warn('yazi not found on PATH')
+    end
+
+    -- example data:
+    -- 'yazi 0.2.4 (411ba2f 2024-03-15)'
+    local raw_version = vim.fn.system('yazi --version')
+
+    -- parse the version
+
+    local semver = raw_version:match('^yazi (%w+%.%w+%.%w+)')
+
+    if semver == nil then
+      vim.health.warn('yazi --version looks unexpected, saw ' .. raw_version)
+    end
+
+    local checker = require('vim.version')
+    if not checker.ge(semver, '0.1.5') then
+      return vim.health.warn(
+        'yazi version is too old, please upgrade to 0.1.5 or newer'
+      )
+    end
+
+    vim.health.ok('yazi')
+  end,
+}