yazi - init commit

plugins/eza-preview.yazi/main.lua

@@ -0,0 +1,157 @@
+local M = {}
+
+local function fail(s, ...)
+	ya.notify({ title = "Eza Preview", content = string.format(s, ...), timeout = 5, level = "error" })
+end
+
+local toggle_view_mode = ya.sync(function(state, _)
+	if state.tree == nil then
+		state.tree = false
+	end
+
+	state.tree = not state.tree
+end)
+
+local is_tree_view_mode = ya.sync(function(state, _)
+	return state.tree
+end)
+
+local set_opts = ya.sync(function(state, opts)
+	if state.opts == nil then
+		state.opts = { level = 3, follow_symlinks = false, dereference = false }
+	end
+
+	for key, value in pairs(opts or {}) do
+		state.opts[key] = value
+	end
+end)
+
+local get_opts = ya.sync(function(state)
+	return state.opts
+end)
+
+local inc_level = ya.sync(function(state)
+	state.opts.level = state.opts.level + 1
+end)
+
+local dec_level = ya.sync(function(state)
+	if state.opts.level > 1 then
+		state.opts.level = state.opts.level - 1
+	end
+end)
+
+local toggle_follow_symlinks = ya.sync(function(state)
+	state.opts.follow_symlinks = not state.opts.follow_symlinks
+end)
+
+function M:setup(opts)
+	set_opts(opts)
+
+	toggle_view_mode()
+end
+
+function M:entry(job)
+	local arg = job.arg
+
+	if arg["inc_level"] ~= nil then
+		inc_level()
+	elseif arg["dec_level"] ~= nil then
+		dec_level()
+	elseif arg["toggle_follow_symlinks"] ~= nil then
+		toggle_follow_symlinks()
+	else
+		set_opts()
+		toggle_view_mode()
+	end
+
+	ya.manager_emit("seek", { 0 })
+end
+
+function M:peek(job)
+	local opts = get_opts()
+
+	local arg = {
+		"--all",
+		"--color=always",
+		"--icons=always",
+		"--group-directories-first",
+		"--no-quotes",
+		tostring(job.file.url),
+	}
+
+	if is_tree_view_mode() then
+		table.insert(arg, "--tree")
+		table.insert(arg, string.format("--level=%d", opts.level))
+	end
+
+	if opts then
+		if opts.follow_symlinks then
+			table.insert(arg, "--follow-symlinks")
+		end
+
+		if opts.dereference then
+			table.insert(arg, "--dereference")
+		end
+	end
+
+	local child = Command("eza"):arg(arg):stdout(Command.PIPED):stderr(Command.PIPED):spawn()
+
+	local limit = job.area.h
+	local lines = ""
+	local num_lines = 1
+	local num_skip = 0
+	local empty_output = false
+
+	repeat
+		local line, event = child:read_line()
+		if event == 1 then
+			fail(tostring(event))
+		elseif event ~= 0 then
+			break
+		end
+
+		if num_skip >= job.skip then
+			lines = lines .. line
+			num_lines = num_lines + 1
+		else
+			num_skip = num_skip + 1
+		end
+	until num_lines >= limit
+
+	if num_lines == 1 and not is_tree_view_mode() then
+		empty_output = true
+	elseif num_lines == 2 and is_tree_view_mode() then
+		empty_output = true
+	end
+
+	child:start_kill()
+	if job.skip > 0 and num_lines < limit then
+		ya.manager_emit("peek", {
+			tostring(math.max(0, job.skip - (limit - num_lines))),
+			only_if = tostring(job.file.url),
+			upper_bound = "",
+		})
+	elseif empty_output then
+		ya.preview_widgets(job, {
+			ui.Text({ ui.Line("No items") }):area(job.area):align(ui.Text.CENTER),
+		})
+	else
+		ya.preview_widgets(job, { ui.Text.parse(lines):area(job.area) })
+	end
+end
+
+function M:seek(job)
+	local h = cx.active.current.hovered
+
+	if h and h.url == job.file.url then
+		local step = math.floor(job.units * job.area.h / 10)
+
+		ya.manager_emit("peek", {
+			math.max(0, cx.active.preview.skip + step),
+			only_if = tostring(job.file.url),
+			force = true,
+		})
+	end
+end
+
+return M