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