feat: add diff.yazi plugin

diff.yazi/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 yazi-rs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

diff.yazi/README.md

@@ -0,0 +1,22 @@
+# diff.yazi
+
+Diff the selected file with the hovered file, create a living patch, and copy it to the clipboard.
+
+## Installation
+
+```sh
+ya pack -a yazi-rs/plugins#diff
+```
+
+## Usage
+
+Add this to your `~/.config/yazi/keymap.toml`:
+
+```toml
+[[manager.prepend_keymap]]
+on   = [ "<C-d>" ]
+run  = "plugin diff"
+desc = "Diff the selected with the hovered file"
+```
+
+Make sure the <kbd>C</kbd> + <kbd>d</kbd> key is not used elsewhere.

diff.yazi/init.lua

@@ -0,0 +1,37 @@
+local function info(content)
+	return ya.notify {
+		title = "Diff",
+		content = content,
+		timeout = 5,
+	}
+end
+
+local selected_url = ya.sync(function()
+	for _, u in pairs(cx.active.selected) do
+		return u
+	end
+end)
+
+local hovered_url = ya.sync(function()
+	local h = cx.active.current.hovered
+	return h and h.url
+end)
+
+return {
+	entry = function()
+		local a, b = selected_url(), hovered_url()
+		if not a then
+			return info("No file selected")
+		elseif not b then
+			return info("No file hovered")
+		end
+
+		local output, err = Command("diff"):arg("-Naur"):arg(tostring(a)):arg(tostring(b)):output()
+		if not output then
+			return info("Failed to run diff, error: " .. err)
+		end
+
+		ya.clipboard(output.stdout)
+		info("Diff copied to clipboard")
+	end,
+}

lsar.yazi/init.lua

@@ -18,9 +18,7 @@ function M:peek()
 	local i, lines = 0, {}
 	repeat
 		local next, event = child:read_line()
-		if event == 1 then
+		if event ~= 0 then
-			goto continue
-		elseif event ~= 0 then
 			break
 		end
 
@@ -28,8 +26,6 @@ function M:peek()
 		if i > self.skip then
 			lines[#lines + 1] = ui.Line(next)
 		end
-
-		::continue::
 	until i >= self.skip + limit
 
 	child:start_kill()