feat: Remove the client/server architecture

This is now longer needed thanks to the new DDC implementation that
doesn't require the available interfaces enumeration via udev.
/sys/class/drm/card*-{display_name}/i2c-* is the interface associated to
a particular display, re-use the same code as ddc_hi to initialize a ddc
display. The code now runs under 100ms for each display.

Cargo.toml

@@ -1,9 +1,21 @@
-[workspace]
+[package]
+name = "lumactld"
+version = "0.1.0"
+edition = "2021"
 
-members = [
-    "cli",
-    "ipc",
-    "daemon",
-]
-
-resolver = "2"
+[dependencies]
+clap = { version = "4.5.21", features = ["derive"] }
+ddc-hi = { version = "0.4.1" }
+eyre = "0.6.12"
+log = "0.4.22"
+smithay-client-toolkit = "0.19.2"
+wayland-client = "0.31.7"
+xdg = "2.5.2"
+serde_json = "1.0.133"
+ctrlc = "3.4.5"
+flexi_logger = "0.29.6"
+nix = "0.29.0"
+i2c-linux = { version = "0.1.2", features = ["i2c"] }
+ddc-i2c = { version = "0.2.2", features = ["with-linux"] }
+ddc = "0.2.2"
+serde = { version = "1.0.215", features = ["derive"] }

README.md

@@ -1,16 +1,16 @@
 # Lumactl
 
-A daemon to control the brightness on Linux. It supports both backlight brightness as well as
+**lumactl** is a tool to control the brightness on Linux. It supports both backlight brightness and
 external displays controlled with DDC protocol. The scope is unifying both interfaces under
-one tool, making it possible to use as bridge for other tools like keybindings and bars.
+one tool, making it possible to use as interface for other tools like window managers and bars.
 
 ## Features
 
 - Supports backlight brightness
 - Supports for external monitors via DDC
 - Easy to use command line interface
 - Supports for relative increase/decreases
-- Designed to be fast (hence the client/daemon interface)
+- Designed to be fast
 
 ## Getting started
 
@@ -20,13 +20,7 @@ To build **lumactl** local, run:
 $ cargo build --release
 ```
 
-Then execute the daemon in the background via:
-
-```bash
-$ lumactld --daemon
-```
-
-You can control the brightness by calling **lumactl** directly:
+You can control the brightness by calling **lumactl**:
 
 ```bash
 # Get the brightness in percentage for all displays
@@ -37,16 +31,6 @@ $ lumactl set 100
 $ lumactl set --display DP-4 -20%
 ```
 
-## Why is lumactld a daemon
-The first iteration of this small tool was indeed a simple command line probing all available
-DDC interfaces via `ddc_hi` crate. However, probing all of them takes 2 seconds or more on my
-workstation, which means that **lumactl** took from 2 to 3 seconds every time it runs.
-This is definitely not acceptable for integration into any other tool, which should expect a
-result in a reasonable time. The daemon will enumerate and probe all DDC interfaces only at
-startup and when a display gets connected or disconnected, making **lumactl** just send the
-command as quickly as possible. It also leaves open the opportunity to further optimizations
-in the future like caching the current brightness or using inotify for backlight brightness.
-
 ## License
 
 **lumactl** is licensed under the GPL-3.0+ license.