Fix workflow.

Update readme.

.github/workflows/push-build.yml

@@ -0,0 +1,20 @@
+name: Rust
+
+on: push
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Pre-build
+      run: sudo apt install -y libdbus-1-dev pkg-config libdbus-1-3
+    - name: Build
+      run: cargo build --verbose --release
+      env:
+        RUST_BACKTRACE: 1
+    - name: Strip
+      run: strip target/release/tmux-helper
+

.github/workflows/release-upload.yml

@@ -9,8 +9,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+    - name: Pre-build
+      run: sudo apt install -y libdbus-1-dev pkg-config libdbus-1-3
     - name: Build
       run: cargo build --verbose --release
+      env:
+        RUST_BACKTRACE: 1
+    - name: Strip
+      run: strip target/release/tmux-helper
     - name: Upload to release
       uses: JasonEtco/upload-to-release@master
       with:

.github/workflows/rust.yml

@@ -1,15 +0,0 @@
-name: Rust
-
-on: [push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose

Cargo.toml

@@ -6,3 +6,4 @@ edition = "2018"
 
 [dependencies]
 sys-info = "*"
+dbus = "*"

README.md

@@ -0,0 +1,16 @@
+# Tmux helper
+Small app that perform system check and print TMUX friendly output.
+
+![Preview](.github/prev.png)
+
+### Features:
+1. `tmux-helper -cb` print cpu load with bar.
+2. `tmux-helper -mb` print memory usage with bar.
+3. `tmux-helper -p` show current player status using d-bus.
+
+### Building 
+`cargo build --release`
+or get binary on release page
+
+### Customization
+Colours are hardcoded but it's easy to change it. It defined as CONST in very beginning of main.rs file.

src/main.rs

@@ -1,17 +1,28 @@
-use std::fs;
-use std::env;
+extern crate dbus;
+use crate::dbus::blocking::stdintf::org_freedesktop_dbus::Properties;
+use dbus::{arg, blocking::Connection};
+use std::{env, fs, time::Duration};
 use sys_info;
 
-const LOW: &str = "#[fg=colour186]";
-const MID: &str = "#[fg=colour208]";
-const HIGH: &str = "#[fg=colour160]";
+const LOW: &str = "#[fg=colour2]";
+const MID: &str = "#[fg=colour3]";
+const HIGH: &str = "#[fg=colour1]";
 const END: &str = "#[fg=colour7]";
+const TRACK_NAME: &str = "#[fg=colour3]";
+const TRACK_ARTIST: &str = "#[fg=colour3]";
+const TRACK_TIME: &str = "#[bg=colour252 fg=colour235 bold]";
 
-fn read_file(file_path: &str) -> String {
-    fs::read_to_string(file_path)
-        .expect("Cant read file.")
+struct TrackInfo {
+    title: String,
+    artist: String,
+    position: String,
+    duration: String,
+    status: String,
 }
 
+fn read_file(file_path: &str) -> String {
+    fs::read_to_string(file_path).expect("Cant read file.")
+}
 
 fn to_bar(value: i32, max: i32, low: f32, mid: f32) {
     let mut bar = "".to_string();
@@ -26,7 +37,9 @@ fn to_bar(value: i32, max: i32, low: f32, mid: f32) {
     for i in 0..max {
         if i < value as i32 {
             bar.push_str(&bar_sym);
-        } else {bar.push_str(" ")}
+        } else {
+            bar.push_str(" ")
+        }
     }
     bar.push_str(END);
     bar.push_str("|");
@@ -39,9 +52,10 @@ fn mem_load_bar(bar_len: i32) {
         Err(w) => panic!("{:?}", w),
         Ok(mem_data) => memory = mem_data,
     }
-    let len = ((memory.total - memory.avail) as f32 / (memory.total as f32) * bar_len as f32) as i32;
+    let len =
+        ((memory.total - memory.avail) as f32 / (memory.total as f32) * bar_len as f32) as i32;
     to_bar(len, bar_len, 0.7, 0.9);
-    print!("{:.0} MiB", memory.avail/1024);
+    print!("{:.0} MiB", memory.avail / 1024);
 }
 
 fn cpu_load_bar(bar_len: i32) {
@@ -55,22 +69,109 @@ fn cpu_load_bar(bar_len: i32) {
     print!("{:.2} LA1", one);
 }
 
+fn player_info(player: &str) -> Result<TrackInfo, Box<dyn std::error::Error>> {
+    let conn = Connection::new_session()?;
+    let mut service: String = "org.mpris.MediaPlayer2.".to_owned();
+    service.push_str(player);
+    let proxy = conn.with_proxy(
+        service,
+        "/org/mpris/MediaPlayer2",
+        Duration::from_millis(5000),
+    );
+    let metadata: Box<dyn arg::RefArg> = proxy.get("org.mpris.MediaPlayer2.Player", "Metadata")?;
+    let mut iter = metadata.as_iter().unwrap();
+    let mut track_info = TrackInfo {
+        artist: "".to_string(),
+        title: "".to_string(),
+        position: "".to_string(),
+        duration: "".to_string(),
+        status: "".to_string(),
+    };
+    while let Some(key) = iter.next() {
+        if key.as_str() == Some("xesam:title") {
+            if let Some(title) = iter.next().unwrap().as_str() {
+                track_info.title = title.to_string();
+            }
+        }
+        if key.as_str() == Some("mpris:length") {
+            if let Some(length) = iter.next().unwrap().as_i64() {
+                track_info.duration = format_time(length / 1000000);
+            }
+        }
+        if key.as_str() == Some("xesam:artist") {
+            if let Some(mut artists) = iter.next().unwrap().as_iter() {
+                while let Some(artist) = artists.next() {
+                    if let Some(mut line) = artist.as_iter() {
+                        track_info.artist = line.next().unwrap().as_str().unwrap().to_string();
+                    }
+                }
+            }
+        }
+    }
+    let position: Box<dyn arg::RefArg> = proxy.get("org.mpris.MediaPlayer2.Player", "Position")?;
+    track_info.position = format_time(position.as_i64().unwrap() / 1000000);
+    // ugly
+    let _status_text_box: Box<dyn arg::RefArg> =
+        proxy.get("org.mpris.MediaPlayer2.Player", "PlaybackStatus")?;
+    let _status_text = _status_text_box.as_str().unwrap();
+    match _status_text.as_ref() {
+        "Playing" => track_info.status = "▶".to_string(),
+        "Paused" => track_info.status = "⏸".to_string(),
+        _ => track_info.status = "⏹".to_string(),
+    };
+    Ok(track_info)
+}
+
+fn format_time(sec: i64) -> String {
+    let minutes = sec / 60;
+    let secondes = sec % 60;
+    let result = format!("{:02}:{:02}", minutes, secondes);
+    result.to_string()
+}
+
 fn main() {
-  let args: Vec<String> = env::args().collect();
-  let help_text: &str = "Available commands -mb, -cb";
-  match args.len() {
+    let args: Vec<String> = env::args().collect();
+    let help_text: &str = "Available commands -mb, -cb";
+    match args.len() {
         1 => {
             panic!(help_text);
-        },
-        2 => {
-            match args[1].as_ref() {
-                "-cb" => cpu_load_bar(15),
-                "-mb" => mem_load_bar(15),
-                _ => panic!(help_text),
-            }
+        }
+        2 => match args[1].as_ref() {
+            "-cb" => cpu_load_bar(15),
+            "-mb" => mem_load_bar(15),
+            "-p" => match player_info("cmus") {
+                Ok(mut track_info) => {
+                    let title_len = 30;
+                    let artist_len = 30;
+                    if track_info.title.len() >= title_len {
+                        track_info.title.truncate(title_len);
+                        track_info.title.push_str("..");
+                    }
+                    if track_info.artist.len() >= artist_len {
+                        track_info.artist.truncate(artist_len);
+                        track_info.artist.push_str("..");
+                    }
+                    println!(
+                        "#[none]#[bold]{}{}{}#[none]{} - {}{} {}[{}/{}] {} {}",
+                        TRACK_NAME,
+                        track_info.title,
+                        END,
+                        TRACK_ARTIST,
+                        track_info.artist,
+                        END,
+                        TRACK_TIME,
+                        track_info.position,
+                        track_info.duration,
+                        track_info.status,
+                        END,
+                    );
+                }
+                Err(_e) => println!("No music playing"),
+            },
+            _ => panic!(help_text),
         },
         _ => {
             panic!(help_text);
         }
-  }
+    }
 }