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action_helper.lua
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action_helper.lua
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local uv = vim.loop
local function print(x)
io.write(tostring(x) .. "\n")
end
local function get_preview_socket()
local tmp = vim.fn.tempname()
local socket = uv.new_pipe(false)
uv.pipe_bind(socket, tmp)
return socket, tmp
end
local preview_socket, preview_socket_path = get_preview_socket()
uv.listen(preview_socket, 100, function(err)
local preview_receive_socket = uv.new_pipe(false)
-- start listening
uv.accept(preview_socket, preview_receive_socket)
preview_receive_socket:read_start(function(err, data)
assert(not err)
if not data then
uv.close(preview_receive_socket)
uv.close(preview_socket)
vim.schedule(function()
vim.cmd[[qall]]
end)
return
end
io.write(data)
end)
end)
local function rpc_nvim_exec_lua(opts)
local success, errmsg = pcall(function ()
local nargs = vim.fn.argc()
local args = {}
-- fzf field expression unpacks from the argument list
for i=1,nargs do
-- vim uses zero indexing
table.insert(args, vim.fn.argv(i - 1))
end
local environ = vim.fn.environ()
local chan_id = vim.fn.sockconnect("pipe", opts.action_server, { rpc = true })
-- for skim compatibility
local preview_lines = environ.FZF_PREVIEW_LINES or environ.LINES
local preview_cols = environ.FZF_PREVIEW_COLUMNS or environ.COLUMNS
vim.rpcrequest(chan_id, "nvim_exec_lua", [[
local luaargs = {...}
local function_id = luaargs[1]
local preview_socket_path = luaargs[2]
local fzf_selection = luaargs[3]
local fzf_lines = luaargs[4]
local fzf_columns = luaargs[5]
local usr_func = require"fzf.registry".get_func(function_id)
return usr_func(preview_socket_path, fzf_selection, fzf_lines, fzf_columns)
]], {
opts.function_id,
preview_socket_path,
args,
tonumber(preview_lines),
tonumber(preview_cols)
})
vim.fn.chanclose(chan_id)
end)
if not success then
io.write("NVIM-FZF LUA ERROR\n\n" .. errmsg .. "\n")
vim.cmd [[qall]]
end
end
return {
rpc_nvim_exec_lua = rpc_nvim_exec_lua
}