264 lines
7.3 KiB
Lua
264 lines
7.3 KiB
Lua
local M = {}
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local cmd = vim.cmd
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M.close_buffer = function(bufexpr, 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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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, 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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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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-- swtich to another buff
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-- TODO switch to next bufffer, 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("%", "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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else
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api.nvim_set_option("laststatus", 2)
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end
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end
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M.load_config = function(reload)
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local conf = require "core.default_config"
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local chadrcExists, _ = 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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local change = require "custom.chadrc"
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conf = vim.tbl_deep_extend("force", conf, change)
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return conf
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end
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-- or load default config
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return conf
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end
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M.map = function(mode, keys, cmd, 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(mode, lhs, rhs, 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(mode, key, rhs, options)
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end
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else
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if type(mode) == "table" then
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for _, m in ipairs(mode) do
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map_wrapper(m, lhs, rhs, options)
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end
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else
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if valid_modes[mode] and lhs and rhs then
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vim.api.nvim_set_keymap(mode, lhs, rhs, options)
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else
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mode, lhs, rhs = mode or "", lhs or "", rhs or ""
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print("Cannot set mapping [ mode = '" .. mode .. "' | key = '" .. lhs .. "' | cmd = '" .. rhs .. "' ]")
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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, cmd, 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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-- FUNCTION: override_req, use `chadrc` plugin config override if present
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-- name = name inside `default_config` / `chadrc`
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-- default_req = run this if 'name' does not exist in `default_config` / `chadrc`
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-- if override or default_req start with `(`, then strip that and assume override calls a function, not a whole file
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M.override_req = function(name, default_req)
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local override = require("core.utils").load_config().plugins.default_plugin_config_replace[name]
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local result = default_req
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if override ~= nil then
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result = override
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end
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if string.match(result, "^%(") then
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result = result:sub(2)
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result = result:gsub("%)%.", "').", 1)
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return "require('" .. result
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end
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return "require('" .. result .. "')"
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end
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return M
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