perf: move autoloader to cache and always use lazy's modname path resolver which is much faster

This commit is contained in:
Folke Lemaitre 2022-12-28 17:57:59 +01:00
parent 956164d27d
commit 34977c2b80
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GPG Key ID: 41F8B1FBACAE2040
5 changed files with 128 additions and 54 deletions

View File

@ -30,6 +30,16 @@ M.cache = {}
M.enabled = true
---@type string[]
M.rtp = nil
M.stats = {
find = { total = 0, time = 0, rtp = 0, unloaded = 0, index = 0, stat = 0, not_found = 0 },
autoload = { total = 0, time = 0 },
}
---@type table<string, table<string,string>>
M.topmods = {}
---@type table<string, true>
M.indexed = {}
M.indexed_rtp = false
M.indexed_unloaded = false
-- selene:allow(global_usage)
M._loadfile = _G.loadfile
@ -53,11 +63,21 @@ function M.check_path(modname, modpath)
return false
end
return M.check_autoload(modname, modpath)
end
function M.check_autoload(modname, modpath)
local start = uv.hrtime()
M.stats.autoload.total = M.stats.autoload.total + 1
-- check plugins. Again fast, since we check the plugin name from the path.
-- only needed when the plugin mod has been loaded
if package.loaded["lazy.core.plugin"] then
local plugin = require("lazy.core.plugin").find(modpath)
---@type LazyCorePlugin
local Plugin = package.loaded["lazy.core.plugin"]
if Plugin then
local plugin = Plugin.find(modpath)
if plugin and modpath:find(plugin.dir, 1, true) == 1 then
-- we're not interested in loader time, so calculate delta here
M.stats.autoload.time = M.stats.autoload.time + uv.hrtime() - start
if not plugin._.loaded then
if plugin.module == false then
error("Plugin " .. plugin.name .. " is not loaded and is configured with module=false")
@ -67,6 +87,7 @@ function M.check_path(modname, modpath)
return true
end
end
M.stats.autoload.time = M.stats.autoload.time + uv.hrtime() - start
return false
end
@ -76,13 +97,6 @@ function M.disable()
end
-- selene:allow(global_usage)
_G.loadfile = M._loadfile
---@diagnostic disable-next-line: no-unknown
for i, loader in ipairs(package.loaders) do
if loader == M.loader then
table.remove(package.loaders, i)
break
end
end
M.enabled = false
end
@ -93,6 +107,7 @@ function M.loader(modname)
local chunk, err
if entry and M.check_path(modname, entry.modpath) then
M.stats.find.total = M.stats.find.total + 1
local mod = package.loaded[modname]
if type(mod) == "table" then
return function()
@ -105,7 +120,12 @@ function M.loader(modname)
-- find the modpath and load the module
local modpath = M.find(modname)
if modpath then
chunk, err = M.load(modname, modpath)
M.check_autoload(modname, modpath)
if M.enabled then
chunk, err = M.load(modname, modpath)
else
chunk, err = M._loadfile(modpath)
end
end
end
return chunk or (err and error(err)) or "not found in lazy cache"
@ -163,12 +183,90 @@ function M.require(modname)
return mod
end
-- index the top-level lua modules for this path
function M._index(path)
if not M.indexed[path] and path:sub(-6, -1) ~= "/after" then
M.stats.find.index = M.stats.find.index + 1
---@type LazyUtilCore
local Util = package.loaded["lazy.core.util"]
if not Util then
return
end
M.indexed[path] = true
Util.ls(path .. "/lua", function(_, name, t)
local topname
if t == "directory" then
topname = name
elseif name:sub(-4) == ".lua" then
topname = name:sub(1, -5)
end
if topname then
M.topmods[topname] = M.topmods[topname] or {}
M.topmods[topname][path] = path
end
end)
end
end
---@param modname string
---@return string?
function M.find(modname)
M.stats.find.total = M.stats.find.total + 1
local start = uv.hrtime()
local basename = modname:gsub("%.", "/")
local paths = { "lua/" .. basename .. ".lua", "lua/" .. basename .. "/init.lua" }
return vim.api.nvim__get_runtime(paths, false, { is_lua = true })[1]
local idx = modname:find(".", 1, true)
local topmod = idx and modname:sub(1, idx - 1) or modname
-- search for a directory first when topmod == modname
local patterns = topmod == modname and { "/init.lua", ".lua" } or { ".lua", "/init.lua" }
-- check top-level mods to find the module
local function _find()
for _, toppath in pairs(M.topmods[topmod] or {}) do
for _, pattern in ipairs(patterns) do
local path = toppath .. "/lua/" .. basename .. pattern
M.stats.find.stat = M.stats.find.stat + 1
if uv.fs_stat(path) then
return path
end
end
end
end
local modpath = _find()
if not modpath then
-- update rtp
if not M.indexed_rtp then
for _, path in ipairs(vim.api.nvim_list_runtime_paths()) do
M._index(path)
end
M.indexed_rtp = true
modpath = _find()
end
-- update unloaded
if not modpath and not M.indexed_unloaded then
---@type LazyCoreConfig
local Config = package.loaded["lazy.core.config"]
if Config then
for _, plugin in pairs(Config.plugins) do
if not (M.indexed[plugin.dir] or plugin._.loaded or plugin.module == false) then
M._index(plugin.dir)
end
end
end
M.indexed_unloaded = true
modpath = _find()
end
-- module not found
if not modpath then
M.stats.find.not_found = M.stats.find.not_found + 1
end
end
M.stats.find.time = M.stats.find.time + uv.hrtime() - start
return modpath
end
-- returns the cached RTP excluding plugin dirs
@ -207,23 +305,30 @@ function M.setup(opts)
end
end
M.debug = opts and opts.debug
M.load_cache()
table.insert(package.loaders, 2, M.loader)
-- selene:allow(global_usage)
_G.loadfile = M.loadfile
M.enabled = M.config.enabled
-- reset rtp when it changes
vim.api.nvim_create_autocmd("OptionSet", {
pattern = "runtimepath",
callback = function()
M.rtp = nil
M.indexed_rtp = false
end,
})
if #M.config.disable_events > 0 then
vim.api.nvim_create_autocmd(M.config.disable_events, { once = true, callback = M.disable })
if M.enabled then
table.insert(package.loaders, 2, M.loader)
M.load_cache()
-- selene:allow(global_usage)
_G.loadfile = M.loadfile
if #M.config.disable_events > 0 then
vim.api.nvim_create_autocmd(M.config.disable_events, { once = true, callback = M.disable })
end
else
-- we need to always add the loader since this will autoload unloaded modules
table.insert(package.loaders, M.loader)
end
return M
end

View File

@ -1,5 +1,6 @@
local Util = require("lazy.core.util")
---@class LazyCoreConfig
local M = {}
---@class LazyConfig

View File

@ -28,9 +28,6 @@ function M.setup()
end,
})
-- autoload opt plugins
table.insert(package.loaders, M.autoload)
-- install missing plugins
if Config.options.install.missing then
Util.track("install")
@ -298,32 +295,4 @@ function M.colorscheme(name)
end
end
-- This loader is added as the very last one.
-- This only hits when the modname is not cached and
-- even then only once per plugin. So pretty much never.
---@param modname string
function M.autoload(modname)
-- check if a lazy plugin should be loaded
for _, plugin in pairs(Config.plugins) do
if not (plugin._.loaded or plugin.module == false) then
for _, pattern in ipairs({ ".lua", "/init.lua" }) do
local path = plugin.dir .. "/lua/" .. modname:gsub("%.", "/") .. pattern
if vim.loop.fs_stat(path) then
M.load(plugin, { require = modname })
-- check if the module has been loaded in the meantime
if type(package.loaded[modname]) == "table" then
local mod = package.loaded[modname]
return function()
return mod
end
end
local chunk, err = loadfile(path)
return chunk or error(err)
end
end
end
end
return modname .. " not found in lazy plugins"
end
return M

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@ -3,6 +3,7 @@ local Util = require("lazy.core.util")
local Handler = require("lazy.core.handler")
local Cache = require("lazy.core.cache")
---@class LazyCorePlugin
local M = {}
---@class LazySpecLoader

View File

@ -25,10 +25,8 @@ function M.setup(spec, opts)
end
local start = vim.loop.hrtime()
if not (opts and opts.performance and opts.performance.cache and opts.performance.cache.enabled == false) then
-- load module cache before anything else
require("lazy.core.cache").setup(opts)
end
-- load module cache before anything else
require("lazy.core.cache").setup(opts)
local Util = require("lazy.core.util")
local Config = require("lazy.core.config")