58 lines
1.1 KiB
Lua
58 lines
1.1 KiB
Lua
--- @since 25.4.8
|
|
|
|
local M = {}
|
|
|
|
local function fail(job, s)
|
|
ya.preview_widgets(job, {
|
|
ui.Text(string.format("`piper` plugin error: %s", s)):area(job.area):wrap(ui.Text.WRAP),
|
|
})
|
|
end
|
|
|
|
function M:peek(job)
|
|
local child, err = Command("sh")
|
|
:args({
|
|
"-c",
|
|
job.args[1],
|
|
})
|
|
:env("w", job.area.w)
|
|
:env("h", job.area.h)
|
|
:args({ "", tostring(job.file.url) })
|
|
:stdout(Command.PIPED)
|
|
:stderr(Command.PIPED)
|
|
:spawn()
|
|
|
|
if not child then
|
|
return fail(job, err)
|
|
end
|
|
|
|
local limit = job.area.h
|
|
local i, lines = 0, ""
|
|
repeat
|
|
local next, event = child:read_line()
|
|
if event == 1 then
|
|
return fail(job, "error occurred in stderr")
|
|
elseif event ~= 0 then
|
|
break
|
|
end
|
|
|
|
i = i + 1
|
|
if i > job.skip then
|
|
lines = lines .. next
|
|
end
|
|
until i >= job.skip + limit
|
|
|
|
child:start_kill()
|
|
if job.skip > 0 and i < job.skip + limit then
|
|
ya.mgr_emit("peek", { math.max(0, i - limit), only_if = job.file.url, upper_bound = true })
|
|
else
|
|
lines = lines:gsub("\t", string.rep(" ", rt.preview.tab_size))
|
|
ya.preview_widgets(job, {
|
|
ui.Text.parse(lines):area(job.area),
|
|
})
|
|
end
|
|
end
|
|
|
|
function M:seek(job) require("code"):seek(job) end
|
|
|
|
return M
|