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check tmux session before attempting to change tmux panes #33

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merged 1 commit into from
Oct 14, 2022
Merged

check tmux session before attempting to change tmux panes #33

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25 changes: 22 additions & 3 deletions lua/smart-splits/tmux.lua
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Original file line number Diff line number Diff line change
@@ -1,11 +1,30 @@
local M = {}

local function get_socket_path()
local tmux = vim.env.TMUX
if not tmux or #tmux == 0 then
return nil
end

return vim.split(tmux, ',')[1]
end

local function tmux_exec(cmd)
local socket = get_socket_path()
if not socket then
return nil
end

local cmd_str = string.format('tmux -S %s %s', socket, cmd)
return vim.fn.system(cmd_str)
end

---Try to get current tmux pane ID
---returns nil if failed.
---returns nil if failed or not in a tmux session.
---@return string|nil
function M.current_pane_id()
local _, id = pcall(function()
local output = vim.fn.system('tmux display-message -p "#{pane_id}"')
local output = tmux_exec('display-message -p "#{pane_id}"')
if not output or #output == 0 then
return nil
end
Expand All @@ -23,7 +42,7 @@ end
function M.next_pane(direction)
direction = string.upper(direction)
local ok, _ = pcall(function()
vim.fn.system(string.format('tmux select-pane -%s', direction))
tmux_exec(string.format('select-pane -%s', direction))
end)

return ok
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