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use std::io::Write;
use std::path::PathBuf;
use anyhow::Error;
use anyhow::Result;
use anyhow::anyhow;
use clap::ArgMatches;
use tokio::stream::StreamExt;
use tokio::io::AsyncWriteExt;
use crate::config::*;
use crate::package::Package;
use crate::package::PackageName;
use crate::package::PackageVersionConstraint;
use crate::repository::Repository;
use crate::source::*;
use crate::util::progress::ProgressBars;
pub async fn source(matches: &ArgMatches, config: &Configuration, repo: Repository, progressbars: ProgressBars) -> Result<()> {
match matches.subcommand() {
Some(("verify", matches)) => verify(matches, config, repo).await,
Some(("list-missing", matches)) => list_missing(matches, config, repo).await,
Some(("url", matches)) => url(matches, config, repo).await,
Some(("download", matches)) => download(matches, config, repo, progressbars).await,
Some((other, _)) => return Err(anyhow!("Unknown subcommand: {}", other)),
None => return Err(anyhow!("No subcommand")),
}
}
pub async fn verify(matches: &ArgMatches, config: &Configuration, repo: Repository) -> Result<()> {
let source_cache_root = PathBuf::from(config.source_cache_root());
let sc = SourceCache::new(source_cache_root);
let pname = matches.value_of("package_name").map(String::from).map(PackageName::from);
let pvers = matches.value_of("package_version").map(String::from).map(PackageVersionConstraint::new).transpose()?;
let packages = repo.packages()
.filter(|p| pname.as_ref().map(|n| p.name() == n).unwrap_or(true))
.filter(|p| pvers.as_ref().map(|v| v.matches(p.version())).unwrap_or(true));
let mut out = std::io::stdout();
verify_impl(packages, &sc, &mut out).await
}
pub (in crate::commands) async fn verify_impl<'a, I>(packages: I, sc: &SourceCache, output: &mut Write) -> Result<()>
where I: Iterator<Item = &'a Package> + 'a
{
if let Err(_) = packages
.map(|p| sc.sources_for(p).into_iter())
.flatten()
.map(|source| async move {
if source.path().exists() {
match source.verify_hash().await {
Ok(true) => Ok(format!("Ok: {}", source.path().display())),
Ok(false) => Err(format!("Hash Mismatch: {}", source.path().display())),
Err(e) => Err(format!("Hash verification failed: {}", e.to_string())), // TODO: make me nice
}
} else {
Err(format!("Source missing: {}", source.path().display()))
}
})
.collect::<futures::stream::FuturesUnordered<_>>()
.collect::<Vec<std::result::Result<String, String>>>()
.await
.into_iter()
.inspect(|r| { let _ = writeln!(output, "{}", match r { Ok(s) | Err(s) => s }); })
.map(|r| r.map(|_| ()).map_err(|_| ()))
.collect::<std::result::Result<(), ()>>()
{
Err(anyhow!("At least one package failed with source verification"))
} else {
Ok(())
}
}
pub async fn list_missing(_: &ArgMatches, config: &Configuration, repo: Repository) -> Result<()> {
let sc = SourceCache::new(PathBuf::from(config.source_cache_root()));
let out = std::io::stdout();
let mut outlock = out.lock();
repo.packages()
.map(|p| {
for source in sc.sources_for(p) {
if !source.exists() {
writeln!(outlock, "{} {} -> {}", p.name(), p.version(), source.path().display())?;
}
}
Ok(())
})
.collect()
}
pub async fn url(matches: &ArgMatches, config: &Configuration, repo: Repository) -> Result<()> {
let out = std::io::stdout();
let mut outlock = out.lock();
let pname = matches.value_of("package_name").map(String::from).map(PackageName::from);
let pvers = matches.value_of("package_version").map(String::from).map(PackageVersionConstraint::new).transpose()?;
repo.packages()
.filter(|p| pname.as_ref().map(|n| p.name() == n).unwrap_or(true))
.filter(|p| pvers.as_ref().map(|v| v.matches(p.version())).unwrap_or(true))
.map(|p| {
p.sources()
.iter()
.map(|source| writeln!(outlock, "{} {} -> {}", p.name(), p.version(), source.url()).map_err(Error::from))
.collect()
})
.collect()
}
pub async fn download(matches: &ArgMatches, config: &Configuration, repo: Repository, progressbars: ProgressBars) -> Result<()> {
let force = matches.is_present("force");
let cache = PathBuf::from(config.source_cache_root());
let sc = SourceCache::new(cache);
let pname = matches.value_of("package_name").map(String::from).map(PackageName::from);
let pvers = matches.value_of("package_version").map(String::from).map(PackageVersionConstraint::new).transpose()?;
let multi = indicatif::MultiProgress::new();
let r = repo.packages()
.filter(|p| pname.as_ref().map(|n| p.name() == n).unwrap_or(true))
.filter(|p| pvers.as_ref().map(|v| v.matches(p.version())).unwrap_or(true))
.map(|p| {
sc.sources_for(p)
.into_iter()
.map(|source| {
let bar = multi.add(progressbars.download_bar(source.url()));
async move {
if source.exists() && !force {
Err(anyhow!("Source exists: {}", source.path().display()))
} else {
if source.exists() {
let _ = source.remove_file().await?;
}
trace!("Starting download...");
let file = source.create().await?;
let mut file = tokio::io::BufWriter::new(file);
let response = reqwest::get(source.url().as_ref()).await?;
if let Some(len) = response.content_length() {
bar.set_length(len);
}
let mut stream = reqwest::get(source.url().as_ref()).await?.bytes_stream();
while let Some(bytes) = stream.next().await {
let bytes = bytes?;
file.write_all(bytes.as_ref()).await?;
bar.inc(bytes.len() as u64);
}
file.flush().await?;
bar.finish_with_message("Finished download");
Ok(())
}
}
})
})
.flatten()
.collect::<futures::stream::FuturesUnordered<_>>()
.collect::<Result<()>>()
.await;
multi.join()?;
r
}
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