88 lines
3.3 KiB
Markdown
88 lines
3.3 KiB
Markdown
|
Diese Konversation wurde mit Duck.ai (https://duck.ai) unter Verwendung des o3-mini-Modells von OpenAI generiert. KI-Chats zeigen möglicherweise falsche oder anstößige Informationen an (weitere Informationen siehe https://duckduckgo.com/duckai/privacy-terms).
|
|||
|
|
|
|||
|
|
====================
|
|||
|
|
|
|||
|
|
Benutzereingabe 1 von 2 - 5.6.2025, 02:27:36:
|
|||
|
|
in Rust, what can I use to display multiple progress bars in the terminal?
|
|||
|
|
|
|||
|
|
o3-mini:
|
|||
|
|
You can use the indicatif crate, which provides a MultiProgress type that lets you manage and display multiple progress bars concurrently in a terminal.
|
|||
|
|
|
|||
|
|
Below is a simple example of how to use indicatif’s MultiProgress to display multiple progress bars:
|
|||
|
|
|
|||
|
|
```rust
|
|||
|
|
use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
|
|||
|
|
use std::{thread, time::Duration};
|
|||
|
|
|
|||
|
|
fn main() {
|
|||
|
|
// Create a MultiProgress container.
|
|||
|
|
let m = MultiProgress::new();
|
|||
|
|
|
|||
|
|
// Create several progress bars.
|
|||
|
|
let pb1 = m.add(ProgressBar::new(100));
|
|||
|
|
pb1.set_style(
|
|||
|
|
ProgressStyle::default_bar()
|
|||
|
|
.template("{msg} {bar:40.cyan/blue} {pos:>3}/{len:3}")
|
|||
|
|
.expect("Failed to set progress bar style"),
|
|||
|
|
);
|
|||
|
|
pb1.set_message("Downloading");
|
|||
|
|
|
|||
|
|
let pb2 = m.add(ProgressBar::new(50));
|
|||
|
|
pb2.set_style(
|
|||
|
|
ProgressStyle::default_bar()
|
|||
|
|
.template("{msg} {bar:40.green/black} {pos:>3}/{len:3}")
|
|||
|
|
.expect("Failed to set progress bar style"),
|
|||
|
|
);
|
|||
|
|
pb2.set_message("Processing");
|
|||
|
|
|
|||
|
|
// Optionally, spawn threads to update the progress bars concurrently.
|
|||
|
|
let h1 = std::thread::spawn(move || {
|
|||
|
|
for i in 0..=100 {
|
|||
|
|
pb1.set_position(i);
|
|||
|
|
thread::sleep(Duration::from_millis(50));
|
|||
|
|
}
|
|||
|
|
pb1.finish_with_message("Download complete");
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
let h2 = std::thread::spawn(move || {
|
|||
|
|
for i in 0..=50 {
|
|||
|
|
pb2.set_position(i);
|
|||
|
|
thread::sleep(Duration::from_millis(100));
|
|||
|
|
}
|
|||
|
|
pb2.finish_with_message("Processing complete");
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Wait for threads to complete. MultiProgress takes care of rendering.
|
|||
|
|
h1.join().expect("Thread 1 panicked");
|
|||
|
|
h2.join().expect("Thread 2 panicked");
|
|||
|
|
|
|||
|
|
// You may also iterate on the multi-progress which blocks until all bars finish:
|
|||
|
|
// m.join().unwrap();
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### Steps Explained
|
|||
|
|
|
|||
|
|
1. **MultiProgress Container**:
|
|||
|
|
Create a `MultiProgress` instance which is used to manage multiple progress bars.
|
|||
|
|
|
|||
|
|
2. **Progress Bars**:
|
|||
|
|
Create individual progress bars using `MultiProgress::add()`. You can customize each progress bar with a message, style, and length.
|
|||
|
|
|
|||
|
|
3. **Concurrent Updates**:
|
|||
|
|
The example spawns two threads – one for each progress bar. Each thread updates its progress bar independently using `set_position()` and finishes the progress bar with `finish_with_message()`.
|
|||
|
|
|
|||
|
|
4. **Thread Joining**:
|
|||
|
|
Ensure the main thread waits for the worker threads to complete to prevent the program from exiting prematurely.
|
|||
|
|
|
|||
|
|
### Installation
|
|||
|
|
|
|||
|
|
Make sure to add indicatif to your Cargo.toml:
|
|||
|
|
|
|||
|
|
```toml
|
|||
|
|
[dependencies]
|
|||
|
|
indicatif = "0.17" # or the latest version available on crates.io
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
This crate provides many options for customizing and using progress bars in a concurrent and effective manner. The documentation is available at [indicatif on docs.rs](https://docs.rs/indicatif) for further details and advanced usage.
|