feat: new mactag plugin

Co-authored-by: Anirudh Gupta <146579014+AnirudhG07@users.noreply.github.com>

mactag.yazi/init.lua

@@ -0,0 +1,80 @@
+local COLORS = { red = "red", yellow = "yellow", orange = "magenta", green = "green", blue = "blue" }
+
+local update = ya.sync(function(st, tags)
+	for path, tag in pairs(tags) do
+		st.tags[path] = #tag == 0 and nil or tag
+	end
+	ya.render()
+end)
+
+local selected_or_hovered = ya.sync(function()
+	local tab, urls = cx.active, {}
+	for _, u in pairs(tab.selected) do
+		urls[#urls + 1] = u
+	end
+	if #urls == 0 and tab.current.hovered then
+		urls[1] = tab.current.hovered.url
+	end
+	return urls
+end)
+
+local function setup(st)
+	st.tags = {}
+
+	Linemode:children_add(function(self)
+		local url = tostring(self._file.url)
+		local spans = {}
+		for _, tag in ipairs(st.tags[url] or {}) do
+			spans[#spans + 1] = ui.Span("⬤"):fg(COLORS[tag:lower()] or "reset")
+		end
+		return ui.Line(spans)
+	end, 500)
+end
+
+local function fetch(self)
+	local paths = {}
+	for _, file in ipairs(self.files) do
+		paths[#paths + 1] = tostring(file.url)
+	end
+
+	local output, err = Command("tag"):args(paths):stdout(Command.PIPED):output()
+	if not output then
+		return ya.err("Cannot spawn tag command, error code " .. tostring(err))
+	end
+
+	local i, tags = 1, {}
+	for line in output.stdout:gmatch("[^\r\n]+") do
+		if i > #paths then
+			break
+		end
+		tags[paths[i]] = tags[paths[i]] or {}
+
+		local joint = line:match("\t(.+)$") or ""
+		for s in joint:gmatch("[^,]+") do
+			table.insert(tags[paths[i]], s)
+		end
+		i = i + 1
+	end
+
+	update(tags)
+	return 1
+end
+
+local function entry(_, args)
+	assert(args[1] == "add" or args[1] == "remove", "Invalid action")
+	assert(args[2], "No tag specified")
+
+	local t = { args[1] == "remove" and "-r" or "-a", args[2] }
+	local files = {}
+	for _, url in ipairs(selected_or_hovered()) do
+		t[#t + 1] = tostring(url)
+		files[#files + 1] = { url = url }
+	end
+
+	local status = Command("tag"):args(t):status()
+	if status.success then
+		fetch { files = files }
+	end
+end
+
+return { setup = setup, fetch = fetch, entry = entry }