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//
// Copyright (c) 2020-2022 science+computing ag and other contributors
//
// This program and the accompanying materials are made
// available under the terms of the Eclipse Public License 2.0
// which is available at https://www.eclipse.org/legal/epl-2.0/
//
// SPDX-License-Identifier: EPL-2.0
//
use std::fmt::Debug;
use anyhow::Context;
use anyhow::Error;
use anyhow::Result;
use anyhow::anyhow;
use futures::stream::Stream;
use indicatif::ProgressBar;
use log::trace;
use result_inspect::ResultInspect;
use crate::filestore::path::ArtifactPath;
use crate::filestore::path::StoreRoot;
use crate::filestore::util::FileStoreImpl;
pub struct StagingStore(pub(in crate::filestore) FileStoreImpl);
impl Debug for StagingStore {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::result::Result<(), std::fmt::Error> {
write!(f, "StagingStore(root: {})", self.0.root_path().display())
}
}
impl StagingStore {
pub fn load(root: StoreRoot, progress: &ProgressBar) -> Result<Self> {
FileStoreImpl::load(root, progress).map(StagingStore)
}
/// Write the passed tar stream to the file store
///
/// # Returns
///
/// Returns a list of Artifacts that were written from the stream
pub async fn write_files_from_tar_stream<S>(&mut self, stream: S) -> Result<Vec<ArtifactPath>>
where
S: Stream<Item = Result<Vec<u8>>>,
{
use futures::stream::TryStreamExt;
let dest = self.0.root_path();
stream
.try_concat()
.await
.and_then(|bytes| {
trace!("Unpacking archive to {}", dest.display());
dest.unpack_archive_here(tar::Archive::new(&bytes[..]))
.context("Unpacking TAR")
.map_err(Error::from)
})
.context("Concatenating the output bytestream")?
.into_iter()
.inspect(|p| trace!("Trying to load into staging store: {}", p.display()))
.filter_map(|path| {
if self.0.root_path().is_dir(&path) {
None
} else {
// Clippy doesn't detect this properly
#[allow(clippy::redundant_clone)]
ArtifactPath::new(path.to_path_buf())
.inspect(|r| trace!("Loaded from path {} = {:?}", path.display(), r))
.with_context(|| anyhow!("Loading from path: {}", path.display()))
.map(|ap| self.0.load_from_path(&ap).clone())
.map(Some)
.transpose()
}
})
.collect()
}
pub fn root_path(&self) -> &StoreRoot {
self.0.root_path()
}
pub fn get(&self, p: &ArtifactPath) -> Option<&ArtifactPath> {
self.0.get(p)
}
}
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