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Signed-off-by: Berend Sliedrecht <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| use core::time; | ||
| use std::io::{self, Write}; | ||
| use std::sync::mpsc::{Receiver, Sender}; | ||
|
|
||
| /// Macaroni | ||
| macro_rules! print_char_with_stop { | ||
| ($char: expr, $timeout: expr, $inplace: expr, $receiver: expr) => { | ||
| Loader::print_char($char, $timeout, $inplace); | ||
| if $receiver.try_recv().is_ok() { | ||
| break; | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| /// All the types of loaders | ||
| pub enum LoaderVariant { | ||
| Spinner, | ||
| #[allow(dead_code)] | ||
| Dots, | ||
| } | ||
|
|
||
| /// Loader structure | ||
| pub struct Loader { | ||
| sender: Sender<bool>, | ||
| } | ||
|
|
||
| /// We implement default here so that the public api for calling the logger can just use this one | ||
| /// if unsure about which loader variant to call | ||
| impl Default for LoaderVariant { | ||
| fn default() -> Self { | ||
| LoaderVariant::Spinner | ||
| } | ||
| } | ||
|
|
||
| impl Loader { | ||
| /// Start a specific loader | ||
| pub fn start(loader_variant: LoaderVariant) -> Self { | ||
| let (sender, receiver) = std::sync::mpsc::channel::<bool>(); | ||
| match loader_variant { | ||
| LoaderVariant::Spinner => Loader::loader_spinner(receiver), | ||
| LoaderVariant::Dots => Loader::loader_dots(receiver), | ||
| }; | ||
| Loader { sender } | ||
| } | ||
|
|
||
| /// Stop the loader instance | ||
| pub fn stop(&self) { | ||
| eprintln!(); | ||
| self.sender.send(false).unwrap(); | ||
| } | ||
|
|
||
| /// prints a char to stdout with a delay and whether it should be inplace or | ||
| /// not | ||
| fn print_char(c: impl Into<String>, timeout: u64, inplace: bool) { | ||
| if inplace { | ||
| eprint!("{}\r", c.into()); | ||
| } else { | ||
| eprint!("{}", c.into()); | ||
| } | ||
| io::stdout().flush().unwrap(); | ||
| std::thread::sleep(time::Duration::from_millis(timeout)); | ||
| } | ||
|
|
||
| /// Spinning loader. Does inplace replacement. | ||
| fn loader_spinner(receiver: Receiver<bool>) { | ||
| let time_between = 50; | ||
|
|
||
| std::thread::spawn(move || loop { | ||
| print_char_with_stop!('|', time_between, true, receiver); | ||
| print_char_with_stop!('/', time_between * 2, true, receiver); | ||
| print_char_with_stop!('-', time_between * 3, true, receiver); | ||
| print_char_with_stop!('\\', time_between * 4, true, receiver); | ||
| print_char_with_stop!('/', time_between * 5, true, receiver); | ||
| print_char_with_stop!('-', time_between * 6, true, receiver); | ||
| print_char_with_stop!('\\', time_between * 7, true, receiver); | ||
| }); | ||
| } | ||
|
|
||
| fn loader_dots(receiver: Receiver<bool>) { | ||
| let time_between = 100; | ||
|
|
||
| std::thread::spawn(move || loop { | ||
| print_char_with_stop!('.', time_between, false, receiver); | ||
| }); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -2,3 +2,4 @@ | |
| pub mod logger; | ||
| pub mod config; | ||
| pub mod qr; | ||
| pub mod loader; | ||