mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-09 19:00:46 +00:00
Add warning to vpv if no input is given
This commit is contained in:
Alexandre Bury
parent
859c12320f
commit
5ee7e11619
@ -76,6 +76,7 @@ signal-hook = "0.1.8"
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[dev-dependencies]
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rand = "0.6.5"
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pretty-bytes = "0.2.2"
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atty = "0.2.11"
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[features]
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blt-backend = ["bear-lib-terminal"]
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181
examples/vpv.rs
181
examples/vpv.rs
@ -1,6 +1,3 @@
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extern crate cursive;
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extern crate pretty_bytes;
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use std::io;
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use cursive::traits::{Boxable, With};
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@ -25,7 +22,7 @@ fn main() {
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let start = time::Instant::now();
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// If an argument is given, it is the file we'll read from.
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// Else, read from stdin.
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// Otherwise, read from stdin.
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let (source, len) = match std::env::args().nth(1) {
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Some(source) => {
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let meta = std::fs::metadata(&source).unwrap();
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@ -36,99 +33,113 @@ fn main() {
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None => (None, None),
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};
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// Start the copy in a separate thread
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thread::spawn(move || {
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// Copy to stdout - lock it for better performance.
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let stdout = io::stdout();
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let mut stdout = stdout.lock();
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match source {
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None => {
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// Copy from stdin - lock it for better performance.
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let stdin = io::stdin();
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let stdin = stdin.lock();
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let mut reader =
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utils::ProgressReader::new(counter_copy, stdin);
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// And copy!
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io::copy(&mut reader, &mut stdout).unwrap();
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}
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Some(source) => {
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// Copy from stdin - lock it for better performance.
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let input = std::fs::File::open(source).unwrap();
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let mut reader =
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utils::ProgressReader::new(counter_copy, input);
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// And copy!
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io::copy(&mut reader, &mut stdout).unwrap();
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}
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}
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// When we're done, shut down the application
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cb_sink.send(Box::new(|s: &mut Cursive| s.quit())).unwrap();
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});
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// Add a single view: progress status
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siv.add_layer(
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Dialog::new().title("Copying...").content(
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LinearLayout::vertical()
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.child(
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Canvas::new(counter.clone())
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.with_draw(move |c, printer| {
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let ticks = c.get() as f64;
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let now = time::Instant::now();
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let duration = now - start;
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Dialog::new()
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.title("Copying...")
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.content(
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LinearLayout::vertical()
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.child(
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Canvas::new(counter.clone())
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.with_draw(move |c, printer| {
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let ticks = c.get() as f64;
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let now = time::Instant::now();
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let duration = now - start;
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let seconds = duration.as_secs() as f64
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+ duration.subsec_nanos() as f64 * 1e-9;
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let seconds = duration.as_secs() as f64
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+ duration.subsec_nanos() as f64 * 1e-9;
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let speed = ticks / seconds;
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let speed = ticks / seconds;
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// Print ETA if we have a file size
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// Otherwise prints elapsed time.
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if let Some(len) = len {
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let remaining = (len as f64 - ticks) / speed;
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// Print ETA if we have a file size
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// Otherwise prints elapsed time.
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if let Some(len) = len {
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let remaining =
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(len as f64 - ticks) / speed;
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printer.print(
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(0, 0),
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&format!(
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"ETA: {:.1} seconds",
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remaining
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),
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);
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} else {
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printer.print(
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(0, 0),
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&format!(
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"Elapsed: {:.1} seconds",
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seconds
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),
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);
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}
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printer.print(
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(0, 0),
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&format!(
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"ETA: {:.1} seconds",
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remaining
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),
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(0, 1),
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&format!("Copied: {}", convert(ticks)),
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);
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} else {
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printer.print(
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(0, 0),
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&format!(
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"Elapsed: {:.1} seconds",
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seconds
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),
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(0, 2),
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&format!("Speed: {}/s", convert(speed)),
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);
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}
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printer.print(
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(0, 1),
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&format!("Copied: {}", convert(ticks)),
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})
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.fixed_size((25, 3)),
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)
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.with(|l| {
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// If we have a file length, add a progress bar
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if let Some(len) = len {
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l.add_child(
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ProgressBar::new()
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.max(len as usize)
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.with_value(counter.clone()),
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);
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printer.print(
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(0, 2),
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&format!("Speed: {}/s", convert(speed)),
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);
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})
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.fixed_size((25, 3)),
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)
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.with(|l| {
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// If we have a file length, add a progress bar
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if let Some(len) = len {
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l.add_child(
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ProgressBar::new()
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.max(len as usize)
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.with_value(counter.clone()),
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);
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}
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}),
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),
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}
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}),
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)
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.button("Abort", Cursive::quit),
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);
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siv.set_autorefresh(true);
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if source.is_none() && atty::is(atty::Stream::Stdin) {
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siv.add_layer(
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Dialog::text(
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"Please specify an input file or redirect a file to stdin.
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cargo run --example vpv </dev/zero >/dev/null",
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)
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.button("Quit", Cursive::quit),
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);
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} else {
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// Start the copy in a separate thread
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thread::spawn(move || {
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// Copy to stdout - lock it for better performance.
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let stdout = io::stdout();
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let mut stdout = stdout.lock();
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match source {
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None => {
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// Copy from stdin - lock it for better performance.
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let stdin = io::stdin();
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let stdin = stdin.lock();
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let mut reader =
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utils::ProgressReader::new(counter_copy, stdin);
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// And copy!
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io::copy(&mut reader, &mut stdout).unwrap();
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}
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Some(source) => {
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// Copy from stdin - lock it for better performance.
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let input = std::fs::File::open(source).unwrap();
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let mut reader =
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utils::ProgressReader::new(counter_copy, input);
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// And copy!
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io::copy(&mut reader, &mut stdout).unwrap();
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}
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}
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// When we're done, shut down the application
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cb_sink.send(Box::new(|s: &mut Cursive| s.quit())).unwrap();
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});
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siv.set_autorefresh(true);
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}
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siv.run();
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}
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