initial commit

src/cli.rs

@@ -0,0 +1,82 @@
+use clap::{App, Arg, ArgGroup, ArgMatches};
+
+pub fn build_cli() -> App<'static, 'static> {
+    App::new("RS Light")
+        .version("1.0")
+        .author("crapStone <wewr.mc@gmail.com>")
+        .about("Utility to interact with backlight")
+        .arg(
+            Arg::with_name("set")
+                .short("s")
+                .long("set")
+                .value_name("VALUE")
+                .help("Sets brightness to given value")
+                .takes_value(true),
+        )
+        .arg(
+            Arg::with_name("inc")
+                .short("i")
+                .long("increase")
+                .value_name("PERCENT")
+                .help("Increases brightness")
+                .takes_value(true),
+        )
+        .arg(
+            Arg::with_name("dec")
+                .short("d")
+                .long("decrease")
+                .value_name("PERCENT")
+                .help("Decreases brightness")
+                .takes_value(true),
+        )
+        .arg(
+            Arg::with_name("get")
+                .short("g")
+                .long("get")
+                .help("Prints current brightness value"),
+        )
+        .arg(
+            Arg::with_name("zer")
+                .short("z")
+                .long("zero")
+                .help("Sets brightness to lowest value"),
+        )
+        .arg(
+            Arg::with_name("ful")
+                .short("f")
+                .long("full")
+                .help("Sets brightness to highest value"),
+        )
+        .group(ArgGroup::with_name("brightness_control").args(&["set", "inc", "dec", "get", "zer", "ful"]))
+        .arg(
+            Arg::with_name("list")
+                .short("l")
+                .long("list")
+                .help("Lists all available brightness and led controllers")
+                .conflicts_with_all(&["brightness_control"]),
+        )
+        .arg(
+            Arg::with_name("ctrl_type")
+                .short("t")
+                .long("type")
+                .value_name("controller_type")
+                .takes_value(true)
+                .possible_values(&["raw", "lin", "log"])
+                .default_value("lin")
+                .help("choose controller type")
+                .long_help(
+                    r#"You can choose between these controller types:
+raw: uses the raw values found in the device files
+lin: uses percentage values (0.0 - 1.0) with a linear curve for the actual brightness
+log: uses percentage values (0.0 - 1.0) with a logarithmic curve for the actual brightness
+     the perceived brightness for the human eyes should be linear with this controller
+"#,
+                ),
+        )
+}
+
+/// Creates a argument parser with [clap](../clap/index.html) and returns a `Box` with the
+/// [matches](../clap/struct.ArgMatches.html).
+pub fn parse_args<'a>() -> Box<ArgMatches<'a>> {
+    Box::new(build_cli().get_matches())
+}