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keymap: add buffer delete key mappings
Signed-off-by: Avimitin <[email protected]> Former-commit-id: 7ad80c8 Former-commit-id: 10e13a5 Former-commit-id: 30d58a3
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,87 @@ | ||
-- nvim-bufdel | ||
-- By Olivier Roques | ||
-- github.com/ojroques | ||
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local M = {} | ||
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-- Switch to buffer 'buf' on each window from list 'windows' | ||
local function switch_buffer(windows, buf) | ||
local cur_win = vim.fn.winnr() | ||
for _, winid in ipairs(windows) do | ||
vim.cmd(string.format("%d wincmd w", vim.fn.win_id2win(winid))) | ||
vim.cmd(string.format("buffer %d", buf)) | ||
end | ||
vim.cmd(string.format("%d wincmd w", cur_win)) | ||
end | ||
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-- Select the next buffer to display | ||
local function get_next_buf(buf) | ||
-- build table mapping buffers to their actual position | ||
local buffers, buf_index = {}, 1 | ||
for i, bufinfo in ipairs(vim.fn.getbufinfo({ buflisted = 1 })) do | ||
if buf == bufinfo.bufnr then | ||
buf_index = i | ||
end | ||
table.insert(buffers, bufinfo.bufnr) | ||
end | ||
-- select next buffer according to user choice | ||
if buf_index == #buffers and #buffers > 1 then | ||
return buffers[#buffers - 1] | ||
end | ||
return buffers[buf_index % #buffers + 1] | ||
end | ||
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-- Delete a buffer, ignoring changes if 'force' is set | ||
local function delete_buffer(buf, force) | ||
if vim.fn.buflisted(buf) == 0 then | ||
return | ||
end | ||
-- retrieve buffer and delete it while preserving window layout | ||
local next_buf = get_next_buf(buf) | ||
local windows = vim.fn.getbufinfo(buf)[1].windows | ||
switch_buffer(windows, next_buf) | ||
-- force deletion of terminal buffers | ||
if force or vim.fn.getbufvar(buf, "&buftype") == "terminal" then | ||
vim.cmd(string.format("bd! %d", buf)) | ||
else | ||
vim.cmd(string.format("silent! confirm bd %d", buf)) | ||
end | ||
-- revert buffer switches if deletion was cancelled | ||
if vim.fn.buflisted(buf) == 1 then | ||
switch_buffer(windows, buf) | ||
end | ||
end | ||
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-- Delete a given buffer, ignoring changes if 'force' is set | ||
function M.delete_buffer_expr(bufexpr, force) | ||
if #vim.fn.getbufinfo({ buflisted = 1 }) < 2 then | ||
-- exit when there is only one buffer left | ||
if force then | ||
vim.cmd("qall!") | ||
else | ||
vim.cmd("confirm qall") | ||
end | ||
return | ||
end | ||
-- retrieve buffer number from buffer expression | ||
if not bufexpr then | ||
delete_buffer(vim.fn.bufnr(), force) | ||
end | ||
if tonumber(bufexpr) then | ||
delete_buffer(tonumber(bufexpr), force) | ||
end | ||
bufexpr = string.gsub(bufexpr, [[^['"]+]], "") -- escape any start quote | ||
bufexpr = string.gsub(bufexpr, [[['"]+$]], "") -- escape any end quote | ||
delete_buffer(vim.fn.bufnr(bufexpr), force) | ||
end | ||
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-- Delete all listed buffers except current, ignoring changes if 'force' is set | ||
function M.delete_buffer_others(force) | ||
for _, bufinfo in ipairs(vim.fn.getbufinfo({ buflisted = 1 })) do | ||
if bufinfo.bufnr ~= vim.fn.bufnr() then | ||
delete_buffer(bufinfo.bufnr, force) | ||
end | ||
end | ||
end | ||
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return M |