Initial commit

.gitignore

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+/target
+**/*.rs.bk

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
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Cargo.toml

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+[package]
+name = "pom"
+version = "0.1.0"
+authors = ["Marcel Schneider <marcel@webschneider.org>"]
+edition = "2018"
+repository = "https://git.schneider-hosting.de/schneider/pom"
+license = "MIT/Apache-2.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+chrono = "0.4"

src/main.rs

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+use chrono::prelude::*;
+use chrono::Duration;
+use std::io::{stdout, Result, StdoutLock, Write};
+use std::process::{Command, Output};
+use std::thread::sleep;
+
+const TIME_FORMAT: &'static str = "%H:%M:%S";
+
+fn main() {
+    run().unwrap();
+}
+
+/// Runs the application
+///
+/// Default time settings are 25 minutes for a working block and 5 minutes for a break.
+fn run() -> Result<()> {
+    let work_duration = Duration::seconds(if cfg!(debug_assertions) { 5 } else { 25 * 60 });
+    let break_duration = Duration::seconds(if cfg!(debug_assertions) { 5 } else { 5 * 60 });
+
+    loop {
+        timer(
+            "Work",
+            "The working time is over, have a break now!",
+            &work_duration,
+        )?;
+
+        timer(
+            "Break",
+            "The break is over, get back to work!",
+            &break_duration,
+        )?;
+    }
+}
+
+/// Handles a timer block
+///
+/// # Arguments
+///
+/// * name - The name for this block, e.g. 'Work' or 'Break'
+/// * after_msg - The message to be displayed by the Dialog window at the end of the time
+/// * duration - How long this block shall be
+fn timer(name: &str, after_msg: &str, duration: &Duration) -> Result<()> {
+    let out = stdout();
+    let mut out = out.lock();
+    let start = Local::now();
+    writeln!(out, "{} start {}", name, start.format(TIME_FORMAT))?;
+
+    loop {
+        reset_line(&mut out)?;
+        let elapsed: Duration = Local::now().signed_duration_since(start);
+
+        if elapsed >= *duration {
+            break;
+        }
+
+        let elapsed_time: NaiveTime = NaiveTime::from_hms(
+            elapsed.num_hours() as u32,
+            elapsed.num_minutes() as u32,
+            elapsed.num_seconds() as u32,
+        );
+        write!(out, "Time elapsed: {}", elapsed_time.format(TIME_FORMAT))?;
+        out.flush().unwrap();
+
+        sleep(Duration::seconds(1).to_std().unwrap());
+    }
+
+    let now = Local::now();
+    writeln!(out, "{} end {}", name, now.format(TIME_FORMAT))?;
+    dialog(after_msg).unwrap();
+    Ok(())
+}
+
+/// Shows a dialog
+///
+/// Currently only supports KDE dialogs via command line program `kdialgo`.
+///
+/// # Arguments
+///
+/// * text - The text to be shown in the Dialog
+fn dialog(text: &str) -> Result<Output> {
+    Command::new("sh")
+        .arg("-c")
+        .arg(format!(
+            "kdialog --title 'Pomodoro Timer' --msgbox '{}'",
+            text
+        ))
+        .output()
+}
+
+/// Resets the current line on stdout
+///
+/// Works for me® but is probably unportable as hell.
+///
+/// # Arguments
+///
+/// * w - A reference to the locked stdout handle
+pub fn reset_line(w: &mut StdoutLock) -> Result<()> {
+    write!(w, "\r[2K")
+}