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neovim-flake/modules/plugins/dashboard/alpha/config.nix

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{
config,
lib,
...
}: let
inherit (lib.modules) mkIf;
inherit (lib.nvim.dag) entryAnywhere;
cfg = config.vim.dashboard.alpha;
in {
config = mkIf cfg.enable {
vim.startPlugins = [
"alpha-nvim"
"nvim-web-devicons"
];
# the entire credit for this dashboard configuration to https://github.com/Rishabh672003
# honestly, excellent work
vim.pluginRC.alpha = entryAnywhere ''
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local alpha = require("alpha")
local plenary_path = require("plenary.path")
local dashboard = require("alpha.themes.dashboard")
local cdir = vim.fn.getcwd()
local if_nil = vim.F.if_nil
local nvim_web_devicons = {
enabled = true,
highlight = true,
}
local function get_extension(fn)
local match = fn:match("^.+(%..+)$")
local ext = ""
if match ~= nil then
ext = match:sub(2)
end
return ext
end
local function icon(fn)
local nwd = require("nvim-web-devicons")
local ext = get_extension(fn)
return nwd.get_icon(fn, ext, { default = true })
end
local function file_button(fn, sc, short_fn)
short_fn = short_fn or fn
local ico_txt
local fb_hl = {}
if nvim_web_devicons.enabled then
local ico, hl = icon(fn)
local hl_option_type = type(nvim_web_devicons.highlight)
if hl_option_type == "boolean" then
if hl and nvim_web_devicons.highlight then
table.insert(fb_hl, { hl, 0, 3 })
end
end
if hl_option_type == "string" then
table.insert(fb_hl, { nvim_web_devicons.highlight, 0, 3 })
end
ico_txt = ico .. " "
else
ico_txt = ""
end
local file_button_el = dashboard.button(sc, ico_txt .. short_fn, "<cmd>e " .. fn .. " <CR>")
local fn_start = short_fn:match(".*[/\\]")
if fn_start ~= nil then
table.insert(fb_hl, { "Comment", #ico_txt - 2, #fn_start + #ico_txt })
end
file_button_el.opts.hl = fb_hl
return file_button_el
end
local default_mru_ignore = { "gitcommit" }
local mru_opts = {
ignore = function(path, ext)
return (string.find(path, "COMMIT_EDITMSG")) or (vim.tbl_contains(default_mru_ignore, ext))
end,
}
--- @param start number
--- @param cwd string optional
--- @param items_number number optional number of items to generate, default = 10
local function mru(start, cwd, items_number, opts)
opts = opts or mru_opts
items_number = if_nil(items_number, 15)
local oldfiles = {}
for _, v in pairs(vim.v.oldfiles) do
if #oldfiles == items_number then
break
end
local cwd_cond
if not cwd then
cwd_cond = true
else
cwd_cond = vim.startswith(v, cwd)
end
local ignore = (opts.ignore and opts.ignore(v, get_extension(v))) or false
if (vim.fn.filereadable(v) == 1) and cwd_cond and not ignore then
oldfiles[#oldfiles + 1] = v
end
end
local target_width = 35
local tbl = {}
for i, fn in ipairs(oldfiles) do
local short_fn
if cwd then
short_fn = vim.fn.fnamemodify(fn, ":.")
else
short_fn = vim.fn.fnamemodify(fn, ":~")
end
if #short_fn > target_width then
short_fn = plenary_path.new(short_fn):shorten(1, { -2, -1 })
if #short_fn > target_width then
short_fn = plenary_path.new(short_fn):shorten(1, { -1 })
end
end
local shortcut = tostring(i + start - 1)
local file_button_el = file_button(fn, shortcut, short_fn)
tbl[i] = file_button_el
end
return {
type = "group",
val = tbl,
opts = {},
}
end
local default_header = {
type = "text",
val = {
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[[ ]],
[[ ]],
[[ ]],
[[ ]],
[[ ]],
-- [[ __ ]],
-- [[ ___ ___ ___ __ __ /\_\ ___ ___ ]],
-- [[ / _ `\ / __`\ / __`\/\ \/\ \\/\ \ / __` __`\ ]],
-- [[/\ \/\ \/\ __//\ \_\ \ \ \_/ |\ \ \/\ \/\ \/\ \ ]],
-- [[\ \_\ \_\ \____\ \____/\ \___/ \ \_\ \_\ \_\ \_\]],
-- [[ \/_/\/_/\/____/\/___/ \/__/ \/_/\/_/\/_/\/_/]],
},
opts = {
position = "center",
hl = "Type",
-- wrap = "overflow";
},
}
local section_mru = {
type = "group",
val = {
{
type = "text",
val = "Recent files",
opts = {
hl = "SpecialComment",
shrink_margin = false,
position = "center",
},
},
{ type = "padding", val = 1 },
{
type = "group",
val = function()
return { mru(0, cdir) }
end,
opts = { shrink_margin = false },
},
},
}
local buttons = {
type = "group",
val = {
{ type = "text", val = "Quick links", opts = { hl = "SpecialComment", position = "center" } },
{ type = "padding", val = 1 },
-- TODO: buttons should be added based on whether or not the relevant plugin is available
dashboard.button("e", " New file", "<cmd>ene<CR>"), -- available all the time
dashboard.button("SPC F", "󰈞 Find file"), -- telescope
dashboard.button("SPC ff", "󰊄 Live grep"), -- telescope
dashboard.button("SPC p", " Projects"), -- any project
dashboard.button("q", "󰅚 Quit", "<cmd>qa<CR>"), -- available all the time
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},
position = "center",
}
local config = {
layout = {
{ type = "padding", val = 2 },
default_header,
{ type = "padding", val = 2 },
section_mru,
{ type = "padding", val = 2 },
buttons,
},
opts = {
margin = 5,
setup = function()
vim.cmd([[
autocmd alpha_temp DirChanged * lua require('alpha').redraw()
]])
end,
},
}
alpha.setup(config)
'';
};
}