Documentation unstable

Documentation for crates.nvim unstable

Features

Complete crate names, versions and features using one of:
- In-process language server (lsp)
- nvim-cmp source (completion.cmp)
- coq.nvim source (completion.coq)
Code actions using one of:
- In-process language server (lsp)
- null-ls.nvim/none-ls.nvim
Update crates to newest compatible version
Upgrade crates to newest version
Respect existing version requirements and update them in an elegant way (smart_insert)
Show version and upgrade candidates
- Show if compatible version is a pre-release or yanked
- Show if no version is compatible
Open popup with crate info
- Open documentation, crates.io, repository and homepage urls
Open popup with crate versions
- Select a version by pressing enter (popup.keys.select)
Open popup with crate features
- Navigate the feature hierarchy
- Enable/disable features
- Indicate if a feature is enabled directly or transitively
Open popup with crate dependencies
- Navigate the dependency hierarchy
- Show normal, build and dev dependencies
- Show optional dependencies
Project-local configuration via Neoconf

Setup

In-process language server

This is the recommended way to enable completion and code actions.

Enable the in-process language server in the setup and select whether to enable code actions, auto completion and hover.

require("crates").setup {
    ...
    lsp = {
        enabled = true,
        on_attach = function(client, bufnr)
            -- the same on_attach function as for your other lsp's
        end,
        actions = true,
        completion = true,
        hover = true,
    },
}

Auto completion

Completion is supported in a few different ways, either by the in-process language server, which also supports code actions, or by one of the following sources.

nvim-cmp source

Enable it in the setup.

require("crates").setup {
    ...
    completion = {
        ...
        cmp = {
            enabled = true,
        },
    },
}

And add it to your list of sources.

require("cmp").setup {
    ...
    sources = {
        { name = "path" },
        { name = "buffer" },
        { name = "nvim_lsp" },
        ...
        { name = "crates" },
    },
}

Or add it lazily.

vim.api.nvim_create_autocmd("BufRead", {
    group = vim.api.nvim_create_augroup("CmpSourceCargo", { clear = true }),
    pattern = "Cargo.toml",
    callback = function()
        cmp.setup.buffer({ sources = { { name = "crates" } } })
    end,
})

Custom nvim-cmp completion kinds

Enable custom completion kind in the config.

require("crates").setup {
    ...
    completion = {
        ...
        cmp = {
            use_custom_kind = true,
            -- optionally change the text and highlight groups
            kind_text = {
                version = "Version",
                feature = "Feature",
            },
            kind_highlight = {
                version = "CmpItemKindVersion",
                feature = "CmpItemKindFeature",
            },
        },
    },
}

This will set a custom completion cmp.kind_text and cmp.kind_hl_group attributes to completion items for nvim-cmp.

Depending on how you've set up the nvim-cmp menu you'll have to handle these explicitly. If you haven't changed nvim-cmps formatting configuration everything should work out of the box.

Here's an example of how add custom icons.

local kind_icons = {
    ["Class"] = "🅒 ",
    ["Interface"] = "🅘 ",
    ["TypeParameter"] = "🅣 ",
    ["Struct"] = "🅢 ",
    ["Enum"] = "🅔 ",
    ["Unit"] = "🅤 ",
    ["EnumMember"] = "🅔 ",
    ["Constant"] = "🅒 ",
    ["Field"] = "🅕 ",
    ["Property"] = "🅟 ",
    ["Variable"] = "🅥 ",
    ["Reference"] = "🅡 ",
    ["Function"] = "🅕 ",
    ["Method"] = "🅜 ",
    ["Constructor"] = "🅒 ",
    ["Module"] = "🅜 ",
    ["File"] = "🅕 ",
    ["Folder"] = "🅕 ",
    ["Keyword"] = "🅚 ",
    ["Operator"] = "🅞 ",
    ["Snippet"] = "🅢 ",
    ["Value"] = "🅥 ",
    ["Color"] = "🅒 ",
    ["Event"] = "🅔 ",
    ["Text"] = "🅣 ",

    -- crates.nvim extensions
    ["Version"] = "🅥 ",
    ["Feature"] = "🅕 ",
}

require("cmp").setup({
    formatting = {
        fields = { "abbr", "kind" },
        format = function(_, vim_item)
            vim_item.kind = kind_icons[vim_item.kind] or "  "
            return vim_item
        end,
    },
})

coq.nvim source

Enable it in the setup, and optionally change the display name.

require("crates").setup {
    ...
    completion = {
        ...
        coq = {
            enabled = true,
            name = "crates.nvim",
        },
    },
}

Crate name completion

Crate names in dependencies can be completed from searches on crates.io. This has to be enabled seperately:

require("crates").setup {
    ...
    completion = {
        crates = {
            enabled = true -- disabled by default
            max_results = 8 -- The maximum number of search results to display
            min_chars = 3 -- The minimum number of charaters to type before completions begin appearing
        }
    }
}

Code actions

Code actions are supported in a few different ways, either by the in-process language server, which also supports completion, or by the null-ls/none-ls source.

null-ls.nvim/none-ls.nvim source

Enable it in the setup, and optionally change the display name.

require("crates").setup {
    ...
    null_ls = {
        enabled = true,
        name = "crates.nvim",
    },
}

Config

For more information about the config types have a look at the vimdoc or lua/crates/config/types.lua.

Default

The icons in the default configuration require a patched font.
Any Nerd Font should work.

require("crates").setup {
    smart_insert = true,
    insert_closing_quote = true,
    autoload = true,
    autoupdate = true,
    autoupdate_throttle = 250,
    loading_indicator = true,
    search_indicator = true,
    date_format = "%Y-%m-%d",
    thousands_separator = ".",
    notification_title = "crates.nvim",
    curl_args = { "-sL", "--retry", "1" },
    max_parallel_requests = 80,
    expand_crate_moves_cursor = true,
    enable_update_available_warning = true,
    on_attach = function(bufnr) end,
    text = {
        searching = "   Searching",
        loading = "   Loading",
        version = "   %s",
        prerelease = "   %s",
        yanked = "   %s",
        nomatch = "   No match",
        upgrade = "   %s",
        error = "   Error fetching crate",
    },
    highlight = {
        searching = "CratesNvimSearching",
        loading = "CratesNvimLoading",
        version = "CratesNvimVersion",
        prerelease = "CratesNvimPreRelease",
        yanked = "CratesNvimYanked",
        nomatch = "CratesNvimNoMatch",
        upgrade = "CratesNvimUpgrade",
        error = "CratesNvimError",
    },
    popup = {
        autofocus = false,
        hide_on_select = false,
        copy_register = '"',
        style = "minimal",
        border = "none",
        show_version_date = false,
        show_dependency_version = true,
        max_height = 30,
        min_width = 20,
        padding = 1,
        text = {
            title = " %s",
            pill_left = "",
            pill_right = "",
            description = "%s",
            created_label = " created        ",
            created = "%s",
            updated_label = " updated        ",
            updated = "%s",
            downloads_label = " downloads      ",
            downloads = "%s",
            homepage_label = " homepage       ",
            homepage = "%s",
            repository_label = " repository     ",
            repository = "%s",
            documentation_label = " documentation  ",
            documentation = "%s",
            crates_io_label = " crates.io      ",
            crates_io = "%s",
            lib_rs_label = " lib.rs         ",
            lib_rs = "%s",
            categories_label = " categories     ",
            keywords_label = " keywords       ",
            version = "  %s",
            prerelease = " %s",
            yanked = " %s",
            version_date = "  %s",
            feature = "  %s",
            enabled = " %s",
            transitive = " %s",
            normal_dependencies_title = " Dependencies",
            build_dependencies_title = " Build dependencies",
            dev_dependencies_title = " Dev dependencies",
            dependency = "  %s",
            optional = " %s",
            dependency_version = "  %s",
            loading = "  ",
        },
        highlight = {
            title = "CratesNvimPopupTitle",
            pill_text = "CratesNvimPopupPillText",
            pill_border = "CratesNvimPopupPillBorder",
            description = "CratesNvimPopupDescription",
            created_label = "CratesNvimPopupLabel",
            created = "CratesNvimPopupValue",
            updated_label = "CratesNvimPopupLabel",
            updated = "CratesNvimPopupValue",
            downloads_label = "CratesNvimPopupLabel",
            downloads = "CratesNvimPopupValue",
            homepage_label = "CratesNvimPopupLabel",
            homepage = "CratesNvimPopupUrl",
            repository_label = "CratesNvimPopupLabel",
            repository = "CratesNvimPopupUrl",
            documentation_label = "CratesNvimPopupLabel",
            documentation = "CratesNvimPopupUrl",
            crates_io_label = "CratesNvimPopupLabel",
            crates_io = "CratesNvimPopupUrl",
            lib_rs_label = "CratesNvimPopupLabel",
            lib_rs = "CratesNvimPopupUrl",
            categories_label = "CratesNvimPopupLabel",
            keywords_label = "CratesNvimPopupLabel",
            version = "CratesNvimPopupVersion",
            prerelease = "CratesNvimPopupPreRelease",
            yanked = "CratesNvimPopupYanked",
            version_date = "CratesNvimPopupVersionDate",
            feature = "CratesNvimPopupFeature",
            enabled = "CratesNvimPopupEnabled",
            transitive = "CratesNvimPopupTransitive",
            normal_dependencies_title = "CratesNvimPopupNormalDependenciesTitle",
            build_dependencies_title = "CratesNvimPopupBuildDependenciesTitle",
            dev_dependencies_title = "CratesNvimPopupDevDependenciesTitle",
            dependency = "CratesNvimPopupDependency",
            optional = "CratesNvimPopupOptional",
            dependency_version = "CratesNvimPopupDependencyVersion",
            loading = "CratesNvimPopupLoading",
        },
        keys = {
            hide = { "q", "<esc>" },
            open_url = { "<cr>" },
            select = { "<cr>" },
            select_alt = { "s" },
            toggle_feature = { "<cr>" },
            copy_value = { "yy" },
            goto_item = { "gd", "K", "<C-LeftMouse>" },
            jump_forward = { "<c-i>" },
            jump_back = { "<c-o>", "<C-RightMouse>" },
        },
    },
    completion = {
        insert_closing_quote = true,
        text = {
            prerelease = "  pre-release ",
            yanked = "  yanked ",
        },
        cmp = {
            enabled = false,
            use_custom_kind = true,
            kind_text = {
                version = "Version",
                feature = "Feature",
            },
            kind_highlight = {
                version = "CmpItemKindVersion",
                feature = "CmpItemKindFeature",
            },
        },
        coq = {
            enabled = false,
            name = "crates.nvim",
        },
        crates = {
            enabled = false,
            min_chars = 3,
            max_results = 8,
        },
    },
    null_ls = {
        enabled = false,
        name = "crates.nvim",
    },
    neoconf = {
        enabled = false,
        namespace = "crates",
    },
    lsp = {
        enabled = false,
        name = "crates.nvim",
        on_attach = function(client, bufnr) end,
        actions = false,
        completion = false,
        hover = false,
    },
}

Plain text

Replace these fields if you don"t have a patched font.

require("crates").setup {
    text = {
        loading = "  Loading...",
        version = "  %s",
        prerelease = "  %s",
        yanked = "  %s yanked",
        nomatch = "  Not found",
        upgrade = "  %s",
        error = "  Error fetching crate",
    },
    popup = {
        text = {
            title = "# %s",
            pill_left = "",
            pill_right = "",
            created_label = "created        ",
            updated_label = "updated        ",
            downloads_label = "downloads      ",
            homepage_label = "homepage       ",
            repository_label = "repository     ",
            documentation_label = "documentation  ",
            crates_io_label = "crates.io      ",
            lib_rs_label = "lib.rs         ",
            categories_label = "categories     ",
            keywords_label = "keywords       ",
            version = "%s",
            prerelease = "%s pre-release",
            yanked = "%s yanked",
            enabled = "* s",
            transitive = "~ s",
            normal_dependencies_title = "  Dependencies",
            build_dependencies_title = "  Build dependencies",
            dev_dependencies_title = "  Dev dependencies",
            optional = "? %s",
            loading = " ...",
        },
    },
    completion = {
        text = {
            prerelease = " pre-release ",
            yanked = " yanked ",
        },
    },
}

Functions

-- Setup config and auto commands.
require("crates").setup(cfg: crates.UserConfig)

-- Disable UI elements (virtual text and diagnostics).
require("crates").hide()
-- Enable UI elements (virtual text and diagnostics).
require("crates").show()
-- Enable or disable UI elements (virtual text and diagnostics).
require("crates").toggle()
-- Update data. Optionally specify which `buf` to update.
require("crates").update(buf: integer?)
-- Reload data (clears cache). Optionally specify which `buf` to reload.
require("crates").reload(buf: integer?)

-- Upgrade the crate on the current line.
-- If the `alt` flag is passed as true, the opposite of the `smart_insert` config
-- option will be used to insert the version.
require("crates").upgrade_crate(alt: boolean?)
-- Upgrade the crates on the lines visually selected.
-- See `crates.upgrade_crate()`.
require("crates").upgrade_crates(alt: boolean?)
-- Upgrade all crates in the buffer.
-- See `crates.upgrade_crate()`.
require("crates").upgrade_all_crates(alt: boolean?)

-- Update the crate on the current line.
-- See `crates.upgrade_crate()`.
require("crates").update_crate(alt: boolean?)
-- Update the crates on the lines visually selected.
-- See `crates.upgrade_crate()`.
require("crates").update_crates(alt: boolean?)
-- Update all crates in the buffer.
-- See `crates.upgrade_crate()`.
require("crates").update_all_crates(alt: boolean?)

-- Expand a plain crate declaration into an inline table.
require("crates").expand_plain_crate_to_inline_table()
-- Extract an crate declaration from a dependency section into a table.
require("crates").extract_crate_into_table()
-- Convert crate dependency to use a git source instead of version number.
require("crates").use_git_source()

-- Open the homepage of the crate on the current line.
require("crates").open_homepage()
-- Open the repository page of the crate on the current line.
require("crates").open_repository()
-- Open the documentation page of the crate on the current line.
require("crates").open_documentation()
-- Open the `crates.io` page of the crate on the current line.
require("crates").open_crates_io()
-- Open the `lib.rs` page of the crate on the current line.
require("crates").open_lib_rs()

-- Returns whether there is information to show in a popup.
require("crates").popup_available(): boolean
-- Show/hide popup with crate details, all versions, all features or details about one feature.
-- If `popup.autofocus` is disabled calling this again will focus the popup.
require("crates").show_popup()
-- Same as `crates.show_popup()` but always show crate details.
require("crates").show_crate_popup()
-- Same as `crates.show_popup()` but always show versions.
require("crates").show_versions_popup()
-- Same as `crates.show_popup()` but always show features or features details.
require("crates").show_features_popup()
-- Same as `crates.show_popup()` but always show dependencies.
require("crates").show_dependencies_popup()
-- Focus the popup (jump into the floating window).
-- Optionally specify the line to jump to, inside the popup.
require("crates").focus_popup(line: integer?)
-- Hide the popup.
require("crates").hide_popup()

Command

:Crates <subcmd>

Run a crates.nvim <subcmd>. All <subcmd>s are just wrappers around the corresponding functions. These are the functions available as commands:

hide()
show()
toggle()
update()
reload()
upgrade_crate()
upgrade_crates()
upgrade_all_crates()
update_crate()
update_crates()
update_all_crates()
use_git_source()
expand_plain_crate_to_inline_table()
extract_crate_into_table()
open_homepage()
open_repository()
open_documentation()
open_cratesio()
popup_available()
show_popup()
show_crate_popup()
show_versions_popup()
show_features_popup()
show_dependencies_popup()
focus_popup()
hide_popup()

Key mappings

Some examples of key mappings.

local crates = require("crates")
local opts = { silent = true }

vim.keymap.set("n", "<leader>ct", crates.toggle, opts)
vim.keymap.set("n", "<leader>cr", crates.reload, opts)

vim.keymap.set("n", "<leader>cv", crates.show_versions_popup, opts)
vim.keymap.set("n", "<leader>cf", crates.show_features_popup, opts)
vim.keymap.set("n", "<leader>cd", crates.show_dependencies_popup, opts)

vim.keymap.set("n", "<leader>cu", crates.update_crate, opts)
vim.keymap.set("v", "<leader>cu", crates.update_crates, opts)
vim.keymap.set("n", "<leader>ca", crates.update_all_crates, opts)
vim.keymap.set("n", "<leader>cU", crates.upgrade_crate, opts)
vim.keymap.set("v", "<leader>cU", crates.upgrade_crates, opts)
vim.keymap.set("n", "<leader>cA", crates.upgrade_all_crates, opts)

vim.keymap.set("n", "<leader>cx", crates.expand_plain_crate_to_inline_table, opts)
vim.keymap.set("n", "<leader>cX", crates.extract_crate_into_table, opts)

vim.keymap.set("n", "<leader>cH", crates.open_homepage, opts)
vim.keymap.set("n", "<leader>cR", crates.open_repository, opts)
vim.keymap.set("n", "<leader>cD", crates.open_documentation, opts)
vim.keymap.set("n", "<leader>cC", crates.open_crates_io, opts)
vim.keymap.set("n", "<leader>cL", crates.open_lib_rs, opts)

In vimscript

nnoremap <silent> <leader>ct :lua require("crates").toggle()<cr>
nnoremap <silent> <leader>cr :lua require("crates").reload()<cr>

nnoremap <silent> <leader>cv :lua require("crates").show_versions_popup()<cr>
nnoremap <silent> <leader>cf :lua require("crates").show_features_popup()<cr>
nnoremap <silent> <leader>cd :lua require("crates").show_dependencies_popup()<cr>

nnoremap <silent> <leader>cu :lua require("crates").update_crate()<cr>
vnoremap <silent> <leader>cu :lua require("crates").update_crates()<cr>
nnoremap <silent> <leader>ca :lua require("crates").update_all_crates()<cr>
nnoremap <silent> <leader>cU :lua require("crates").upgrade_crate()<cr>
vnoremap <silent> <leader>cU :lua require("crates").upgrade_crates()<cr>
nnoremap <silent> <leader>cA :lua require("crates").upgrade_all_crates()<cr>

nnoremap <silent> <leader>cx :lua require("crates").expand_plain_crate_to_inline_table()<cr>
nnoremap <silent> <leader>cX :lua require("crates").extract_crate_into_table()<cr>

nnoremap <silent> <leader>cH :lua require("crates").open_homepage()<cr>
nnoremap <silent> <leader>cR :lua require("crates").open_repository()<cr>
nnoremap <silent> <leader>cD :lua require("crates").open_documentation()<cr>
nnoremap <silent> <leader>cC :lua require("crates").open_crates_io()<cr>
nnoremap <silent> <leader>cL :lua require("crates").open_lib_rs()<cr>

Show appropriate documentation in `Cargo.toml`

Note

If you're using the in-process language server and lsp.hover is enabled, this isn't necessary.

How you might integrate show_popup into your init.lua.

local function show_documentation()
    local filetype = vim.bo.filetype
    if filetype == "vim" or filetype == "help" then
        vim.cmd('h '..vim.fn.expand('<cword>'))
    elseif filetype == "man" then
        vim.cmd('Man '..vim.fn.expand('<cword>'))
    elseif vim.fn.expand('%:t') == 'Cargo.toml' and require('crates').popup_available() then
        require('crates').show_popup()
    else
        vim.lsp.buf.hover()
    end
end

vim.keymap.set('n', 'K', show_documentation, { silent = true })

How you might integrate `show_popup` into your `init.vim`.

nnoremap <silent> K :call <SID>show_documentation()<cr>
function! s:show_documentation()
    if (index(["vim","help"], &filetype) >= 0)
        execute "h ".expand("<cword>")
    elseif (&filetype == "man")
        execute "Man ".expand("<cword>")
    elseif (expand("%:t") == "Cargo.toml" && luaeval("require('crates').popup_available()"))
        lua require("crates").show_popup()
    else
        lua vim.lsp.buf.hover()
    endif
endfunction

neoconf.nvim integration

You can also set project-local settings if you have neoconf.nvim installed; all settings are exactly the same, but are by default under the "crates" namespace.

Neoconf integration has to be enabled, and optionally the namespace can be changed.

require("crates").setup {
    ...
    neoconf = {
        enabled = false,
        namespace = "crates",
    },
}

Example:

// .neoconf.json

{
    //...
    "crates": {
        "smart_insert": false,
        "max_parallel_requests": 50,
        "completion": {
            "crates": {
                "enabled": false
            }
        }
    }
}

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Documentation unstable

Features

Setup

In-process language server

Auto completion

nvim-cmp source

coq.nvim source

Crate name completion

Code actions

null-ls.nvim/none-ls.nvim source

Config

Default

Plain text

Functions

Command

Key mappings

Show appropriate documentation in `Cargo.toml`

neoconf.nvim integration

Clone this wiki locally

Documentation unstable

Features

Setup

In-process language server

Auto completion

nvim-cmp source

coq.nvim source

Crate name completion

Code actions

null-ls.nvim/none-ls.nvim source

Config

Default

Plain text

Functions

Command

Key mappings

Show appropriate documentation in Cargo.toml

neoconf.nvim integration

Clone this wiki locally

Show appropriate documentation in `Cargo.toml`