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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| use anyhow::{anyhow,Result,Context}; | ||
| use std::path::PathBuf; | ||
| use reqwest::Url; | ||
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| use trauma::downloader::{DownloaderBuilder,StyleOptions,ProgressBarOpts}; | ||
| use trauma::download::Download; | ||
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|
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| use crate::lib::progress::{DEFAULT_PROGRESS_STYLE, DEFAULT_PROGRESS_INC}; | ||
| use crate::lib::utils::pluralize; | ||
|
|
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| pub struct Downloads { | ||
| list: Vec<Download>, | ||
| } | ||
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| pub trait Downloadable { | ||
| fn to_url(self) -> Result<Url>; | ||
| } | ||
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| impl Downloadable for String { | ||
| fn to_url(self) -> Result<Url> { | ||
| let url = Url::parse(&self).context(format!("Download URL '{}' is not valid.", &self))?; | ||
| Ok(url) | ||
| } | ||
| } | ||
|
|
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| impl Downloadable for Url { | ||
| fn to_url(self) -> Result<Url> { | ||
| Ok(self) | ||
| } | ||
| } | ||
|
|
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| impl Downloads { | ||
| pub fn new() -> Self { | ||
| let list = Vec::new(); | ||
| Downloads { list } | ||
| } | ||
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| pub fn add<T: Downloadable>(&mut self, item: T, filename: Option<&str>) -> Result<&Download> { | ||
| let url = item.to_url()?; | ||
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|
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| let resolved_filename = match filename { | ||
| Some(name) => name.to_string(), | ||
| None => { | ||
| url.path_segments() | ||
| .ok_or_else(|| anyhow::anyhow!("Error parsing URL."))? | ||
| .last() | ||
| .ok_or_else(|| anyhow::anyhow!("Error getting filename from download URL."))? | ||
| .to_string() | ||
| } | ||
| }; | ||
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| let download = Download { url, filename: resolved_filename }; | ||
| self.list.push(download); | ||
| Ok(self.list.last().ok_or(anyhow::anyhow!("Failed to add download"))?) | ||
| } | ||
|
|
||
| pub fn default_style(&self) -> Result<StyleOptions> { | ||
| let style = ProgressBarOpts::new( | ||
| Some(DEFAULT_PROGRESS_STYLE.to_string()), | ||
| Some(DEFAULT_PROGRESS_INC.to_string()), | ||
| true, true); | ||
|
|
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| let style_clone = style.clone(); | ||
| Ok(StyleOptions::new(style, style_clone)) | ||
| } | ||
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| pub async fn download_all(&self, success_status: Option<&str>, | ||
| no_downloads_message: Option<&str>) -> Result<()> { | ||
| let downloads = &self.list; | ||
| let total_files = downloads.len(); | ||
| if !downloads.is_empty() { | ||
| let downloader = DownloaderBuilder::new() | ||
| .style_options(self.default_style()?) | ||
| .build(); | ||
| downloader.download(&downloads).await; | ||
| println!("Downloaded {}.", pluralize(total_files as u64, "file")); | ||
| for download in downloads { | ||
| if let Some(msg) = success_status { | ||
| let filename = PathBuf::from(&download.filename); | ||
| let name_str = filename.file_name().ok_or(anyhow!("Internal Error: could not extract filename from download"))?; | ||
| //println!(" - {}", name_str.to_string_lossy()); | ||
| println!("{}", msg.replace("{}", &name_str.to_string_lossy())); | ||
| } | ||
| } | ||
| } else { | ||
| if no_downloads_message.is_some() { | ||
| println!("{}", no_downloads_message.unwrap_or("")); | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| use indicatif::{ProgressBar, ProgressStyle}; | ||
| use std::time::Duration; | ||
| use std::thread; | ||
| use anyhow::{anyhow,Result}; | ||
|
|
||
| // these are separated since some APIs don't overload | ||
| // indicatif bars, but take the same primitives. | ||
| pub const DEFAULT_PROGRESS_STYLE: &str = "{spinner:.green} [{bar:40.green/white}] {pos:>}/{len} ({percent}%) eta {eta_precise:.green} {msg}"; | ||
| pub const DEFAULT_PROGRESS_INC: &str = "=>"; | ||
|
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||
| pub fn default_progress_style() -> Result<ProgressStyle, anyhow::Error> { | ||
| let style = ProgressStyle::default_bar() | ||
| .progress_chars(DEFAULT_PROGRESS_INC) | ||
| .template(DEFAULT_PROGRESS_STYLE)?; | ||
| Ok(style) | ||
| } | ||
|
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| pub struct Progress { | ||
| pub bar: ProgressBar, | ||
| spinner: thread::JoinHandle<()> | ||
| } | ||
|
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| impl Progress { | ||
| pub fn new(len: u64) -> Result<Progress> { | ||
| let bar = ProgressBar::new(len as u64); | ||
| bar.set_style(default_progress_style()?); | ||
|
|
||
| let bar_clone = bar.clone(); | ||
| let spinner = thread::spawn(move || { | ||
| loop { | ||
| bar_clone.tick(); | ||
| thread::sleep(Duration::from_millis(20)); | ||
| } | ||
| }); | ||
| Ok(Progress { bar, spinner }) | ||
| } | ||
| } |
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