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123 lines
4.8 KiB
Plaintext
123 lines
4.8 KiB
Plaintext
*pi_health.txt* Healthcheck framework
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Author: TJ DeVries <devries.timothyj@gmail.com>
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Type |gO| to see the table of contents.
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==============================================================================
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Introduction *health*
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health.vim is a minimal framework to help users troubleshoot configuration and
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any other environment conditions that a plugin might care about. Nvim ships
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with healthchecks for configuration, performance, python support, ruby
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support, clipboard support, and more.
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To run all healthchecks, use: >
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:checkhealth
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<
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Plugin authors are encouraged to write new healthchecks. |health-dev|
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==============================================================================
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Commands *health-commands*
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*:che* *:checkhealth* *:CheckHealth*
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:che[ckhealth] Run all healthchecks.
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*E5009*
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Nvim depends on |$VIMRUNTIME|, 'runtimepath' and 'packpath' to
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find the standard "runtime files" for syntax highlighting,
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filetype-specific behavior, and standard plugins (including
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:checkhealth). If the runtime files cannot be found then
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those features will not work.
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:che[ckhealth] {plugins}
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Run healthcheck(s) for one or more plugins. E.g. to run only
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the standard Nvim healthcheck: >
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:checkhealth nvim
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<
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To run the healthchecks for the "foo" and "bar" plugins
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(assuming they are on 'runtimepath' and they have implemented
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the Lua `require("foo.health").check()` interface): >
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:checkhealth foo bar
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<
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To run healthchecks for Lua submodules, use dot notation or
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"*" to refer to all submodules. For example Nvim provides
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`vim.lsp` and `vim.treesitter`: >
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:checkhealth vim.lsp vim.treesitter
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:checkhealth vim*
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<
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==============================================================================
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Functions *health-functions* *vim.health*
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The Lua "health" module can be used to create new healthchecks. To get started
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see |health-dev|.
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vim.health.report_start({name}) *vim.health.report_start()*
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Starts a new report. Most plugins should call this only once, but if
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you want different sections to appear in your report, call this once
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per section.
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vim.health.report_info({msg}) *vim.health.report_info()*
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Reports an informational message.
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vim.health.report_ok({msg}) *vim.health.report_ok()*
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Reports a "success" message.
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vim.health.report_warn({msg} [, {advice}]) *vim.health.report_warn()*
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Reports a warning. {advice} is an optional list of suggestions to
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present to the user.
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vim.health.report_error({msg} [, {advice}]) *vim.health.report_error()*
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Reports an error. {advice} is an optional list of suggestions to
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present to the user.
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==============================================================================
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Create a healthcheck *health-dev*
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Healthchecks are functions that check the user environment, configuration, or
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any other prerequisites that a plugin cares about. Nvim ships with
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healthchecks in:
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- $VIMRUNTIME/autoload/health/
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- $VIMRUNTIME/lua/vim/lsp/health.lua
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- $VIMRUNTIME/lua/vim/treesitter/health.lua
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- and more...
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To add a new healthcheck for your own plugin, simply create a "health.lua"
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module on 'runtimepath' that returns a table with a "check()" function. Then
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|:checkhealth| will automatically find and invoke the function.
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For example if your plugin is named "foo", define your healthcheck module at
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one of these locations (on 'runtimepath'):
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- lua/foo/health/init.lua
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- lua/foo/health.lua
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If your plugin also provides a submodule named "bar" for which you want
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a separate healthcheck, define the healthcheck at one of these locations:
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- lua/foo/bar/health/init.lua
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- lua/foo/bar/health.lua
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All such health modules must return a Lua table containing a `check()`
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function.
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Copy this sample code into `lua/foo/health.lua`, replacing "foo" in the path
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with your plugin name: >
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local M = {}
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M.check = function()
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vim.health.report_start("my_plugin report")
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-- make sure setup function parameters are ok
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if check_setup() then
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vim.health.report_ok("Setup is correct")
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else
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vim.health.report_error("Setup is incorrect")
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end
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-- do some more checking
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-- ...
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end
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return M
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vim:et:tw=78:ts=8:ft=help:fdm=marker
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