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docs: migrating docs from readme
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Folke Lemaitre
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docs/usage/index.md
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docs/usage/index.md
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---
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sidebar_position: 6
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---
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# 🚀 Usage
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Plugins are managed with the `:Lazy` command.
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Open the help with `<?>` to see all the key mappings.
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You can press `<CR>` on a plugin to show its details. Most properties
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can be hovered with `<K>` to open links, help files, readmes,
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git commits and git issues.
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Lazy can automatically check for updates in the background. This feature
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can be enabled with `config.checker.enabled = true`.
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Any operation can be started from the UI, with a sub command or an API function:
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<!-- commands:start -->
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| Command | Lua | Description |
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| ------------------------- | -------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `:Lazy build {plugins}` | `require("lazy").build(opts)` | Rebuild a plugin |
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| `:Lazy check [plugins]` | `require("lazy").check(opts?)` | Check for updates and show the log (git fetch) |
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| `:Lazy clean [plugins]` | `require("lazy").clean(opts?)` | Clean plugins that are no longer needed |
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| `:Lazy clear` | `require("lazy").clear()` | Clear finished tasks |
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| `:Lazy debug` | `require("lazy").debug()` | Show debug information |
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| `:Lazy health` | `require("lazy").health()` | Run `:checkhealth lazy` |
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| `:Lazy help` | `require("lazy").help()` | Toggle this help page |
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| `:Lazy home` | `require("lazy").home()` | Go back to plugin list |
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| `:Lazy install [plugins]` | `require("lazy").install(opts?)` | Install missing plugins |
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| `:Lazy load {plugins}` | `require("lazy").load(opts)` | Load a plugin that has not been loaded yet. Similar to `:packadd`. Like `:Lazy load foo.nvim`. Use `:Lazy! load` to skip `cond` checks. |
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| `:Lazy log [plugins]` | `require("lazy").log(opts?)` | Show recent updates |
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| `:Lazy profile` | `require("lazy").profile()` | Show detailed profiling |
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| `:Lazy reload {plugins}` | `require("lazy").reload(opts)` | Reload a plugin (experimental!!) |
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| `:Lazy restore [plugins]` | `require("lazy").restore(opts?)` | Updates all plugins to the state in the lockfile. For a single plugin: restore it to the state in the lockfile or to a given commit under the cursor |
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| `:Lazy sync [plugins]` | `require("lazy").sync(opts?)` | Run install, clean and update |
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| `:Lazy update [plugins]` | `require("lazy").update(opts?)` | Update plugins. This will also update the lockfile |
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<!-- commands:end -->
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Any command can have a **bang** to make the command wait till it finished. For example,
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if you want to sync lazy from the cmdline, you can use:
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```shell
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nvim --headless "+Lazy! sync" +qa
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```
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`opts` is a table with the following key-values:
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- **wait**: when true, then the call will wait till the operation completed
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- **show**: when false, the UI will not be shown
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- **plugins**: a list of plugin names to run the operation on
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- **concurrency**: limit the `number` of concurrently running tasks
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Stats API (`require("lazy").stats()`):
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<!-- stats:start -->
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```lua
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{
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-- startuptime in milliseconds till UIEnter
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startuptime = 0,
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-- when true, startuptime is the accurate cputime for the Neovim process. (Linux & macOS)
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-- this is more accurate than `nvim --startuptime`, and as such will be slightly higher
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-- when false, startuptime is calculated based on a delta with a timestamp when lazy started.
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real_cputime = false,
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count = 0, -- total number of plugins
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loaded = 0, -- number of loaded plugins
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---@type table<string, number>
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times = {},
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}
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```
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<!-- stats:end -->
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**lazy.nvim** provides a statusline component that you can use to show the number of pending updates.
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Make sure to enable `config.checker.enabled = true` to make this work.
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<details>
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<summary>Example of configuring <a href="https://github.com/nvim-lualine/lualine.nvim">lualine.nvim</a></summary>
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```lua
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require("lualine").setup({
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sections = {
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lualine_x = {
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{
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require("lazy.status").updates,
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cond = require("lazy.status").has_updates,
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color = { fg = "#ff9e64" },
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},
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},
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},
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})
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```
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</details>
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### 📆 User Events
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The following user events will be triggered:
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- **LazyDone**: when lazy has finished starting up and loaded your config
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- **LazySync**: after running sync
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- **LazyInstall**: after an install
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- **LazyUpdate**: after an update
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- **LazyClean**: after a clean
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- **LazyCheck**: after checking for updates
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- **LazyLog**: after running log
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- **LazyLoad**: after loading a plugin. The `data` attribute will contain the plugin name.
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- **LazySyncPre**: before running sync
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- **LazyInstallPre**: before an install
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- **LazyUpdatePre**: before an update
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- **LazyCleanPre**: before a clean
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- **LazyCheckPre**: before checking for updates
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- **LazyLogPre**: before running log
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- **LazyReload**: triggered by change detection after reloading plugin specs
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- **VeryLazy**: triggered after `LazyDone` and processing `VimEnter` auto commands
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- **LazyVimStarted**: triggered after `UIEnter` when `require("lazy").stats().startuptime` has been calculated.
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Useful to update the startuptime on your dashboard.
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## 🐛 Debug
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See an overview of active lazy-loading handlers and what's in the module cache.
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## ▶️ Startup Sequence
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**lazy.nvim** does **NOT** use Neovim packages and even disables plugin loading
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completely (`vim.go.loadplugins = false`). It takes over the complete
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startup sequence for more flexibility and better performance.
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In practice this means that step 10 of [Neovim Initialization](https://neovim.io/doc/user/starting.html#initialization) is done by Lazy:
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1. All the plugins' `init()` functions are executed
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2. All plugins with `lazy=false` are loaded. This includes sourcing `/plugin` and `/ftdetect` files. (`/after` will not be sourced yet)
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3. All files from `/plugin` and `/ftdetect` directories in your rtp are sourced (excluding `/after`)
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4. All `/after/plugin` files are sourced (this includes `/after` from plugins)
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Files from runtime directories are always sourced in alphabetical order.
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## 📂 Structuring Your Plugins
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Some users may want to split their plugin specs in multiple files.
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Instead of passing a spec table to `setup()`, you can use a Lua module.
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The specs from the **module** and any top-level **sub-modules** will be merged together in the final spec,
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so it is not needed to add `require` calls in your main plugin file to the other files.
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The benefits of using this approach:
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- Simple to **add** new plugin specs. Just create a new file in your plugins module.
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- Allows for **caching** of all your plugin specs. This becomes important if you have a lot of smaller plugin specs.
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- Spec changes will automatically be **reloaded** when they're updated, so the `:Lazy` UI is always up to date.
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Example:
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- `~/.config/nvim/init.lua`
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```lua
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require("lazy").setup("plugins")
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```
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- `~/.config/nvim/lua/plugins.lua` or `~/.config/nvim/lua/plugins/init.lua` **_(this file is optional)_**
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```lua
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return {
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"folke/neodev.nvim",
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"folke/which-key.nvim",
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{ "folke/neoconf.nvim", cmd = "Neoconf" },
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}
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```
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- Any lua file in `~/.config/nvim/lua/plugins/*.lua` will be automatically merged in the main plugin spec
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For a real-life example, you can check [LazyVim](https://github.com/LazyVim/LazyVim) and more specifically:
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- [lazyvim.plugins](https://github.com/LazyVim/LazyVim/tree/main/lua/lazyvim/plugins) contains all the plugin specs that will be loaded
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### ↩️ Importing Specs, `config` & `opts`
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As part of a spec, you can add `import` statements to import additional plugin modules.
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Both of the `setup()` calls are equivalent:
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```lua
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require("lazy").setup("plugins")
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-- Same as:
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require("lazy").setup({{import = "plugins"}})
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```
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To import multiple modules from a plugin, add additional specs for each import.
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For example, to import LazyVim core plugins and an optional plugin:
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```lua
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require("lazy").setup({
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spec = {
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{ "LazyVim/LazyVim", import = "lazyvim.plugins" },
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{ import = "lazyvim.plugins.extras.coding.copilot" },
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}
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})
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```
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When you import specs, you can override them by simply adding a spec for the same plugin to your local
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specs, adding any keys you want to override / merge.
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`opts`, `dependencies`, `cmd`, `event`, `ft` and `keys` are always merged with the parent spec.
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Any other property will override the property from the parent spec.
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## ❌ Uninstalling
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To uninstall **lazy.nvim**, you need to remove the following files and directories:
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- **data**: `~/.local/share/nvim/lazy`
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- **state**: `~/.local/state/nvim/lazy`
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- **lockfile**: `~/.config/nvim/lazy-lock.json`
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> Paths can differ if you changed `XDG` environment variables.
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10
docs/usage/lockfile.md
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docs/usage/lockfile.md
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# 🔒 Lockfile `lazy-lock.json`
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After every **update**, the local lockfile is updated with the installed revisions.
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It is recommended to have this file under version control.
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If you use your Neovim config on multiple machines, using the lockfile, you can
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ensure that the same version of every plugin is installed.
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If you are on another machine, you can do `:Lazy restore`, to update all your plugins to
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the version from the lockfile.
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36
docs/usage/migration.md
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36
docs/usage/migration.md
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# 📦 Migration Guide
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## [packer.nvim](https://github.com/wbthomason/packer.nvim)
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- `setup` ➡️ `init`
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- `requires` ➡️ `dependencies`
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- `as` ➡️ `name`
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- `opt` ➡️ `lazy`
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- `run` ➡️ `build`
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- `lock` ➡️ `pin`
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- `disable=true` ➡️ `enabled = false`
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- `tag='*'` ➡️ `version="*"`
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- `after` is **_not needed_** for most use-cases. Use `dependencies` otherwise.
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- `wants` is **_not needed_** for most use-cases. Use `dependencies` otherwise.
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- `config` don't support string type, use `fun(LazyPlugin)` instead.
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- `module` is auto-loaded. No need to specify
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- `keys` spec is [different](#%EF%B8%8F-lazy-key-mappings)
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- `rtp` can be accomplished with:
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```lua
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config = function(plugin)
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vim.opt.rtp:append(plugin.dir .. "/custom-rtp")
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end
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```
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With packer `wants`, `requires` and `after` can be used to manage dependencies.
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With lazy, this isn't needed for most of the Lua dependencies. They can be installed just like normal plugins
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(even with `lazy=true`) and will be loaded when other plugins need them.
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The `dependencies` key can be used to group those required plugins with the one that requires them.
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The plugins which are added as `dependencies` will always be lazy-loaded and loaded when the plugin is loaded.
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## [paq-nvim](https://github.com/savq/paq-nvim)
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- `as` ➡️ `name`
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- `opt` ➡️ `lazy`
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- `run` ➡️ `build`
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12
docs/usage/profiling.md
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12
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# ⚡ Profiling
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Great care has been taken to make the startup code (`lazy.core`) as efficient as possible.
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During startup, all Lua files used before `VimEnter` or `BufReadPre` are byte-compiled and cached,
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similar to what [impatient.nvim](https://github.com/lewis6991/impatient.nvim) does.
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My config for example loads in about `11ms` with `93` plugins. I do a lot of lazy-loading though :)
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**lazy.nvim** comes with an advanced profiler `:Lazy profile` to help you improve performance.
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The profiling view shows you why and how long it took to load your plugins.
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