303 lines
9.1 KiB
Lua
303 lines
9.1 KiB
Lua
local M = {}
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local cmd = vim.cmd
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M.close_buffer = function(force)
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-- This is a modification of a NeoVim plugin from
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-- Author: ojroques - Olivier Roques
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-- Src: https://github.com/ojroques/nvim-bufdel
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-- (Author has okayed copy-paste)
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-- Options
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local opts = {
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next = "cycle", -- how to retrieve the next buffer
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quit = false, -- exit when last buffer is deleted
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--TODO make this a chadrc flag/option
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}
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-- ----------------
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-- Helper functions
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-- ----------------
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-- Switch to buffer 'buf' on each window from list 'windows'
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local function switch_buffer(windows, buf)
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local cur_win = vim.fn.winnr()
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for _, winid in ipairs(windows) do
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winid = tonumber(winid) or 0
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vim.cmd(string.format("%d wincmd w", vim.fn.win_id2win(winid)))
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vim.cmd(string.format("buffer %d", buf))
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end
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vim.cmd(string.format("%d wincmd w", cur_win)) -- return to original window
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end
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-- Select the first buffer with a number greater than given buffer
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local function get_next_buf(buf)
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local next = vim.fn.bufnr "#"
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if opts.next == "alternate" and vim.fn.buflisted(next) == 1 then
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return next
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end
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for i = 0, vim.fn.bufnr "$" - 1 do
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next = (buf + i) % vim.fn.bufnr "$" + 1 -- will loop back to 1
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if vim.fn.buflisted(next) == 1 then
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return next
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end
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end
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end
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-- ----------------
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-- End helper functions
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-- ----------------
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local buf = vim.fn.bufnr()
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if vim.fn.buflisted(buf) == 0 then -- exit if buffer number is invalid
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vim.cmd "close"
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return
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end
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if #vim.fn.getbufinfo { buflisted = 1 } < 2 then
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if opts.quit then
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-- exit when there is only one buffer left
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if force then
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vim.cmd "qall!"
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else
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vim.cmd "confirm qall"
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end
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return
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end
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local chad_term, _ = pcall(function()
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return vim.api.nvim_buf_get_var(buf, "term_type")
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end)
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if chad_term then
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-- Must be a window type
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vim.cmd(string.format("setlocal nobl", buf))
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vim.cmd "enew"
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return
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end
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-- don't exit and create a new empty buffer
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vim.cmd "enew"
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vim.cmd "bp"
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end
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local next_buf = get_next_buf(buf)
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local windows = vim.fn.getbufinfo(buf)[1].windows
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-- force deletion of terminal buffers to avoid the prompt
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if force or vim.fn.getbufvar(buf, "&buftype") == "terminal" then
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local chad_term, type = pcall(function()
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return vim.api.nvim_buf_get_var(buf, "term_type")
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end)
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-- TODO this scope is error prone, make resilient
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if chad_term then
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if type == "wind" then
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-- hide from bufferline
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vim.cmd(string.format("%d bufdo setlocal nobl", buf))
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-- switch to another buff
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-- TODO switch to next buffer, this works too
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vim.cmd "BufferLineCycleNext"
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else
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local cur_win = vim.fn.winnr()
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-- we can close this window
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vim.cmd(string.format("%d wincmd c", cur_win))
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return
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end
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else
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switch_buffer(windows, next_buf)
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vim.cmd(string.format("bd! %d", buf))
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end
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else
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switch_buffer(windows, next_buf)
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vim.cmd(string.format("silent! confirm bd %d", buf))
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end
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-- revert buffer switches if user has canceled deletion
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if vim.fn.buflisted(buf) == 1 then
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switch_buffer(windows, buf)
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end
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end
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-- hide statusline
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-- tables fetched from load_config function
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M.hide_statusline = function()
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local hidden = require("core.utils").load_config().plugins.options.statusline.hidden
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local shown = require("core.utils").load_config().plugins.options.statusline.shown
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local api = vim.api
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local buftype = api.nvim_buf_get_option(0, "ft")
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-- shown table from config has the highest priority
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if vim.tbl_contains(shown, buftype) then
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api.nvim_set_option("laststatus", 2)
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return
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end
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if vim.tbl_contains(hidden, buftype) then
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api.nvim_set_option("laststatus", 0)
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return
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end
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api.nvim_set_option("laststatus", 2)
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end
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M.load_config = function()
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local conf = require "core.default_config"
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local chadrcExists, change = pcall(require, "custom.chadrc")
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-- if chadrc exists , then merge its table into the default config's
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if chadrcExists then
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conf = vim.tbl_deep_extend("force", conf, change)
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end
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return conf
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end
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M.map = function(mode, keys, command, opt)
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local options = { noremap = true, silent = true }
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if opt then
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options = vim.tbl_extend("force", options, opt)
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end
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-- all valid modes allowed for mappings
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-- :h map-modes
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local valid_modes = {
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[""] = true,
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["n"] = true,
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["v"] = true,
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["s"] = true,
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["x"] = true,
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["o"] = true,
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["!"] = true,
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["i"] = true,
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["l"] = true,
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["c"] = true,
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["t"] = true,
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}
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-- helper function for M.map
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-- can gives multiple modes and keys
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local function map_wrapper(sub_mode, lhs, rhs, sub_options)
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if type(lhs) == "table" then
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for _, key in ipairs(lhs) do
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map_wrapper(sub_mode, key, rhs, sub_options)
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end
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else
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if type(sub_mode) == "table" then
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for _, m in ipairs(sub_mode) do
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map_wrapper(m, lhs, rhs, sub_options)
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end
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else
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if valid_modes[sub_mode] and lhs and rhs then
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vim.api.nvim_set_keymap(sub_mode, lhs, rhs, sub_options)
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else
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sub_mode, lhs, rhs = sub_mode or "", lhs or "", rhs or ""
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print(
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"Cannot set mapping [ mode = '" .. sub_mode .. "' | key = '" .. lhs .. "' | cmd = '" .. rhs .. "' ]"
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)
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end
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end
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end
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end
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map_wrapper(mode, keys, command, options)
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end
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-- load plugin after entering vim ui
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M.packer_lazy_load = function(plugin, timer)
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if plugin then
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timer = timer or 0
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vim.defer_fn(function()
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require("packer").loader(plugin)
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end, timer)
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end
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end
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-- Highlights functions
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-- Define bg color
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-- @param group Group
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-- @param color Color
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M.bg = function(group, col)
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cmd("hi " .. group .. " guibg=" .. col)
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end
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-- Define fg color
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-- @param group Group
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-- @param color Color
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M.fg = function(group, col)
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cmd("hi " .. group .. " guifg=" .. col)
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end
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-- Define bg and fg color
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-- @param group Group
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-- @param fgcol Fg Color
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-- @param bgcol Bg Color
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M.fg_bg = function(group, fgcol, bgcol)
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cmd("hi " .. group .. " guifg=" .. fgcol .. " guibg=" .. bgcol)
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end
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-- Override default config of a plugin based on the path provided in the chadrc
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-- Arguments:
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-- 1st - name of plugin
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-- 2nd - default config path
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-- 3rd - optional function name which will called from default_config path
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-- e.g: if given args - "telescope", "plugins.configs.telescope", "setup"
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-- then return "require('plugins.configs.telescope').setup()"
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-- if 3rd arg not given, then return "require('plugins.configs.telescope')"
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-- if override is a table, mark set the override flag for the default config to true
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-- override flag being true tells the plugin to call tbl_override_req as part of configuration
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M.override_req = function(name, default_config, config_function)
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local override, apply_table_override =
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require("core.utils").load_config().plugins.default_plugin_config_replace[name], "false"
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local result = default_config
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if type(override) == "string" and override ~= "" then
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return "require('" .. override .. "')"
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elseif type(override) == "table" then
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apply_table_override = "true"
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elseif type(override) == "function" then
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return override
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end
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result = "('" .. result .. "')"
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if type(config_function) == "string" and config_function ~= "" then
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-- add the . to call the functions and concatenate true or false as argument
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result = result .. "." .. config_function .. "(" .. apply_table_override .. ")"
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end
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return "require" .. result
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end
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-- Override parts of default config of a plugin based on the table provided in the chadrc
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-- FUNCTION: tbl_override_req, use `chadrc` plugin config override to modify default config if present
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-- name = name inside `default_config` / `chadrc`
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-- default_table = the default configuration table of the plugin
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-- returns the modified configuration table
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M.tbl_override_req = function(name, default_table)
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local override = require("core.utils").load_config().plugins.default_plugin_config_replace[name] or {}
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return vim.tbl_deep_extend("force", default_table, override)
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end
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--Helper function to get key from default plugin table
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local get_plugin_index = function(plugin_table, plugin_name)
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for index, plugin in ipairs(plugin_table) do
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if plugin[1] == plugin_name then
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return index
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end
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end
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end
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M.remove_default_plugins = function(plugin_table)
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local removals = require("core.utils").load_config().plugins.default_plugin_remove or {}
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if vim.tbl_isempty(removals) then return plugin_table end
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for _, plugin_removal in ipairs(removals) do
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index = get_plugin_index(plugin_table, plugin_removal)
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plugin_table[index] = nil
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end
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return plugin_table
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end
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return M
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