mirror of
https://github.com/sxyazi/yazi.git
synced 2026-07-22 15:21:04 +00:00
48 lines
1 KiB
Lua
48 lines
1 KiB
Lua
local M = {}
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function M.msg(job, s) ya.preview_widget(job, ui.Text(ui.Line(s):reverse()):area(job.area):wrap(ui.Text.WRAP)) end
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function M:peek(job)
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local path = tostring(job.file.url)
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if path:sub(1, 6) ~= "/proc/" then
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return self.msg(job, "Empty file")
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end
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local i, j, lines = 0, 0, {}
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local file = io.open(path, "r")
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if not file then
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return self.msg(job, "Failed to open file")
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end
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local limit = job.area.h
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while true do
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local chunk = file:read(4096)
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if not chunk then
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break
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end
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j = j + #chunk
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if j > 5242880 then
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return self.msg(job, "File too large")
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end
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for line in chunk:gmatch("[^\n]*\n?") do
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i = i + 1
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if i > job.skip + limit then
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break
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elseif i > job.skip then
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lines[#lines + 1] = line
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end
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end
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end
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if job.skip > 0 and i < job.skip + limit then
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ya.emit("peek", { math.max(0, i - limit), only_if = job.file.url, upper_bound = true })
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else
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ya.preview_widget(job, ui.Text(lines):area(job.area))
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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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