Files
telescope.nvim/lua/telescope/finders/async_oneshot_finder.lua
TJ DeVries a97af306c4 feat(performance): Major performance improvements using async v2 from @oberblastmeister (#987)
* start: Working w/ async jobs

* short circuit to using bad finder if you pass writer.
2021-08-20 11:11:24 -04:00

81 lines
1.9 KiB
Lua

local async = require "plenary.async"
local async_job = require "telescope._"
local LinesPipe = require("telescope._").LinesPipe
local make_entry = require "telescope.make_entry"
return function(opts)
opts = opts or {}
local entry_maker = opts.entry_maker or make_entry.from_string
local cwd = opts.cwd
local fn_command = assert(opts.fn_command, "Must pass `fn_command`")
local results = {}
local num_results = 0
local job_started = false
local job_completed = false
local stdout = nil
return setmetatable({
-- close = function() results = {}; job_started = false end,
close = function() end,
results = results,
}, {
__call = function(_, prompt, process_result, process_complete)
if not job_started then
local job_opts = fn_command()
-- TODO: Handle writers.
-- local writer
-- if job_opts.writer and Job.is_job(job_opts.writer) then
-- writer = job_opts.writer
-- elseif job_opts.writer then
-- writer = Job:new(job_opts.writer)
-- end
stdout = LinesPipe()
local _ = async_job.spawn {
command = job_opts.command,
args = job_opts.args,
cwd = cwd,
stdout = stdout,
}
job_started = true
end
if not job_completed then
for line in stdout:iter(true) do
num_results = num_results + 1
local v = entry_maker(line)
results[num_results] = v
process_result(v)
end
process_complete()
job_completed = true
return
end
local current_count = num_results
for index = 1, current_count do
-- TODO: Figure out scheduling...
async.util.scheduler()
if process_result(results[index]) then
break
end
end
if job_completed then
process_complete()
end
end,
})
end