~cypheon/livetools

1293d8aac8c0a0c2c37bb34e8747d2066b4da4dd — Johann Rudloff 2 years ago
Initial commit (working prototype of live_date).
4 files changed, 118 insertions(+), 0 deletions(-)

A .gitignore
A Cargo.lock
A Cargo.toml
A src/main.rs
A  => .gitignore +2 -0
@@ 1,2 @@
/target
**/*.rs.bk

A  => Cargo.lock +79 -0
@@ 1,79 @@
[[package]]
name = "chrono"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "libc"
version = "0.2.48"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "livetools"
version = "0.1.0"
dependencies = [
 "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "num-integer"
version = "0.1.39"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "num-traits"
version = "0.2.6"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "redox_syscall"
version = "0.1.51"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "time"
version = "0.1.42"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
 "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "winapi"
version = "0.3.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"

[metadata]
"checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
"checksum libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)" = "e962c7641008ac010fa60a7dfdc1712449f29c44ef2d4702394aea943ee75047"
"checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
"checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
"checksum redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)" = "423e376fffca3dfa06c9e9790a9ccd282fafb3cc6e6397d01dbf64f9bacc6b85"
"checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
"checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

A  => Cargo.toml +8 -0
@@ 1,8 @@
[package]
name = "livetools"
version = "0.1.0"
authors = ["Johann Rudloff <johann@sinyax.net>"]
edition = "2018"

[dependencies]
chrono = "0.4"

A  => src/main.rs +29 -0
@@ 1,29 @@
use chrono::{Local};
use std::time::{Duration};
use std::io::prelude::*;
use std::io;
use std::thread;

const CLEAR_LINE: &'static str = "\r\x1b[K";

fn live_date() {
    loop {
        let now = Local::now();
        let time_fmt = "%Y-%m-%d %H:%M:%S%.3f %Z";
        //let time_fmt = "%a %b %e %T %Z %Y";
        //let time_fmt = "%+";
        let time_str = now.format(time_fmt).to_string();
        io::stdout().write(
            format!("{}{}", CLEAR_LINE, time_str).as_bytes()
            ).expect("Write failed");
        io::stdout().flush().expect("Flush failed");

        let nanos_elapsed = Local::now().timestamp_subsec_nanos() % 1_000_000_000;
        let nanos_until_next_full_second = 1_000_000_000 - nanos_elapsed;
        thread::sleep(Duration::new(0, nanos_until_next_full_second));
    }
}

fn main() {
    live_date()
}