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https://github.com/denoland/deno.git
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278 lines
7.8 KiB
Rust
278 lines
7.8 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use std::time::Duration;
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use deno_runtime::colors;
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use crate::util::display::human_download_size;
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#[derive(Clone)]
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pub struct ProgressDataDisplayEntry {
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pub message: String,
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pub position: u64,
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pub total_size: u64,
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}
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#[derive(Clone)]
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pub struct ProgressData {
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pub terminal_width: u32,
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pub display_entry: ProgressDataDisplayEntry,
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pub pending_entries: usize,
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pub percent_done: f64,
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pub total_entries: usize,
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pub duration: Duration,
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}
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pub trait ProgressBarRenderer: Send + std::fmt::Debug {
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fn render(&self, data: ProgressData) -> String;
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}
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/// Indicatif style progress bar.
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#[derive(Debug)]
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pub struct BarProgressBarRenderer;
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impl ProgressBarRenderer for BarProgressBarRenderer {
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fn render(&self, data: ProgressData) -> String {
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let (bytes_text, bytes_text_max_width) = {
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let total_size = data.display_entry.total_size;
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let pos = data.display_entry.position;
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if total_size == 0 {
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(String::new(), 0)
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} else {
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let total_size_str = human_download_size(total_size, total_size);
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(
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format!(
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" {}/{}",
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human_download_size(pos, total_size),
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total_size_str,
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),
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2 + total_size_str.len() * 2,
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)
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}
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};
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let (total_text, total_text_max_width) = if data.total_entries <= 1 {
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(String::new(), 0)
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} else {
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let total_entries_str = data.total_entries.to_string();
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(
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format!(
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" ({}/{})",
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data.total_entries - data.pending_entries,
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data.total_entries
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),
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4 + total_entries_str.len() * 2,
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)
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};
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let elapsed_text = get_elapsed_text(data.duration);
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let mut text = String::new();
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if !data.display_entry.message.is_empty() {
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text.push_str(&format!(
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"{} {}{}\n",
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colors::green("Download"),
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data.display_entry.message,
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bytes_text,
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));
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}
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text.push_str(&elapsed_text);
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let max_width =
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std::cmp::max(10, std::cmp::min(75, data.terminal_width as i32 - 5))
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as usize;
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let same_line_text_width =
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elapsed_text.len() + total_text_max_width + bytes_text_max_width + 3; // space, open and close brace
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let total_bars = if same_line_text_width > max_width {
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1
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} else {
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max_width - same_line_text_width
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};
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let completed_bars =
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(total_bars as f64 * data.percent_done).floor() as usize;
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text.push_str(" [");
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if completed_bars != total_bars {
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if completed_bars > 0 {
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text.push_str(&format!(
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"{}",
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colors::cyan(format!("{}{}", "#".repeat(completed_bars - 1), ">"))
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))
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}
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text.push_str(&format!(
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"{}",
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colors::intense_blue("-".repeat(total_bars - completed_bars))
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))
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} else {
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text.push_str(&format!("{}", colors::cyan("#".repeat(completed_bars))))
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}
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text.push(']');
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// suffix
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if data.display_entry.message.is_empty() {
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text.push_str(&colors::gray(bytes_text).to_string());
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}
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text.push_str(&colors::gray(total_text).to_string());
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text
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}
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}
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#[derive(Debug)]
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pub struct TextOnlyProgressBarRenderer;
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impl ProgressBarRenderer for TextOnlyProgressBarRenderer {
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fn render(&self, data: ProgressData) -> String {
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let bytes_text = {
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let total_size = data.display_entry.total_size;
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let pos = data.display_entry.position;
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if total_size == 0 {
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String::new()
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} else {
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format!(
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" {}/{}",
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human_download_size(pos, total_size),
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human_download_size(total_size, total_size)
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)
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}
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};
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let total_text = if data.total_entries <= 1 {
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String::new()
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} else {
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format!(
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" ({}/{})",
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data.total_entries - data.pending_entries,
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data.total_entries
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)
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};
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format!(
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"{} {}{}{}",
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colors::green("Download"),
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data.display_entry.message,
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colors::gray(bytes_text),
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colors::gray(total_text),
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)
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}
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}
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fn get_elapsed_text(elapsed: Duration) -> String {
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let elapsed_secs = elapsed.as_secs();
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let seconds = elapsed_secs % 60;
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let minutes = elapsed_secs / 60;
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format!("[{:0>2}:{:0>2}]", minutes, seconds)
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}
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#[cfg(test)]
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mod test {
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use super::*;
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use pretty_assertions::assert_eq;
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use std::time::Duration;
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#[test]
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fn should_get_elapsed_text() {
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assert_eq!(get_elapsed_text(Duration::from_secs(1)), "[00:01]");
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assert_eq!(get_elapsed_text(Duration::from_secs(20)), "[00:20]");
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assert_eq!(get_elapsed_text(Duration::from_secs(59)), "[00:59]");
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assert_eq!(get_elapsed_text(Duration::from_secs(60)), "[01:00]");
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assert_eq!(
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get_elapsed_text(Duration::from_secs(60 * 5 + 23)),
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"[05:23]"
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);
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assert_eq!(
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get_elapsed_text(Duration::from_secs(60 * 59 + 59)),
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"[59:59]"
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);
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assert_eq!(get_elapsed_text(Duration::from_secs(60 * 60)), "[60:00]");
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assert_eq!(
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get_elapsed_text(Duration::from_secs(60 * 60 * 3 + 20 * 60 + 2)),
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"[200:02]"
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);
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assert_eq!(
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get_elapsed_text(Duration::from_secs(60 * 60 * 99)),
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"[5940:00]"
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);
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}
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const BYTES_TO_KIB: u64 = 2u64.pow(10);
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#[test]
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fn should_render_bar_progress() {
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let renderer = BarProgressBarRenderer;
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let mut data = ProgressData {
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display_entry: ProgressDataDisplayEntry {
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message: "data".to_string(),
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position: 0,
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total_size: 10 * BYTES_TO_KIB,
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},
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duration: Duration::from_secs(1),
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pending_entries: 1,
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total_entries: 1,
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percent_done: 0f64,
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terminal_width: 50,
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};
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let text = renderer.render(data.clone());
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(
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text,
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concat!(
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"Download data 0.00KiB/10.00KiB\n",
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"[00:01] [-----------------]",
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),
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);
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data.percent_done = 0.5f64;
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data.display_entry.position = 5 * BYTES_TO_KIB;
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data.display_entry.message = String::new();
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data.total_entries = 3;
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let text = renderer.render(data.clone());
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "[00:01] [####>------] 5.00KiB/10.00KiB (2/3)",);
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// just ensure this doesn't panic
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data.terminal_width = 0;
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let text = renderer.render(data.clone());
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "[00:01] [-] 5.00KiB/10.00KiB (2/3)",);
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data.terminal_width = 50;
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data.pending_entries = 0;
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data.display_entry.position = 10 * BYTES_TO_KIB;
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data.percent_done = 1.0f64;
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let text = renderer.render(data.clone());
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "[00:01] [###########] 10.00KiB/10.00KiB (3/3)",);
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data.display_entry.position = 0;
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data.display_entry.total_size = 0;
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data.pending_entries = 0;
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data.total_entries = 1;
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let text = renderer.render(data);
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "[00:01] [###################################]",);
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}
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#[test]
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fn should_render_text_only_progress() {
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let renderer = TextOnlyProgressBarRenderer;
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let mut data = ProgressData {
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display_entry: ProgressDataDisplayEntry {
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message: "data".to_string(),
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position: 0,
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total_size: 10 * BYTES_TO_KIB,
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},
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duration: Duration::from_secs(1),
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pending_entries: 1,
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total_entries: 3,
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percent_done: 0f64,
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terminal_width: 50,
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};
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let text = renderer.render(data.clone());
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "Download data 0.00KiB/10.00KiB (2/3)");
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data.pending_entries = 0;
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data.total_entries = 1;
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data.display_entry.position = 0;
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data.display_entry.total_size = 0;
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let text = renderer.render(data);
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let text = test_util::strip_ansi_codes(&text);
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assert_eq!(text, "Download data");
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}
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}
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