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use super::*;
impl<S: S3 + Clone + Send + Sync + Unpin + 'static> S3Algo<S> {
pub async fn upload_files<P, F, I, R>(
&self,
bucket: String,
files: I,
progress: P,
default_request: R,
) -> Result<(), Error>
where
P: Fn(RequestReport) -> F + Clone + Send + Sync + 'static,
F: Future<Output = ()> + Send + 'static,
I: Iterator<Item = ObjectSource> + Send + 'static,
R: Fn() -> PutObjectRequest + Clone + Unpin + Sync + Send + 'static,
{
let copy_parallelization = self.config.copy_parallelization;
let n_retries = self.config.request.n_retries;
let timeout_state = Arc::new(Mutex::new(TimeoutState::new(self.config.request.clone())));
let timeout_state2 = timeout_state.clone();
let jobs = files.map(move |src| {
let (default, bucket, s3) = (default_request.clone(), bucket.clone(), self.s3.clone());
s3_request(
move || {
src.clone()
.create_upload_future(s3.clone(), bucket.clone(), default.clone())
},
n_retries,
timeout_state.clone(),
)
.boxed()
});
stream::iter(jobs)
.buffer_unordered(copy_parallelization)
.zip(stream::iter(0..))
.map(|(result, i)| result.map(|result| (i, result)))
.try_for_each(move |(i, (mut result, _))| {
let progress = progress.clone();
let timeout_state = timeout_state2.clone();
async move {
result.seq = i;
timeout_state.lock().await.update(&result);
progress(result).map(Ok).await
}
})
.await
}
}
#[derive(Clone, Debug)]
pub enum ObjectSource {
File { path: PathBuf, key: String },
Data { data: Vec<u8>, key: String },
}
impl ObjectSource {
pub fn file(path: PathBuf, key: String) -> Self {
Self::File { path, key }
}
pub fn data<D: Into<Vec<u8>>>(data: D, key: String) -> Self {
Self::Data {
data: data.into(),
key,
}
}
pub async fn create_stream(&self) -> Result<(ByteStream, u64), Error> {
match self {
Self::File { path, .. } => {
let file = tokio::fs::File::open(path.clone()).await.with_context({
let path = path.clone();
move || err::Io {
description: path.display().to_string(),
}
})?;
let metadata = file.metadata().await.with_context({
let path = path.clone();
move || err::Io {
description: path.display().to_string(),
}
})?;
let len = metadata.len();
Ok((
ByteStream::new(
FramedRead::new(file, BytesCodec::new()).map_ok(bytes::BytesMut::freeze),
),
len,
))
}
Self::Data { data, .. } => Ok((data.clone().into(), data.len() as u64)),
}
}
pub async fn create_upload_future<C, R>(
self,
s3: C,
bucket: String,
default: R,
) -> Result<(impl Future<Output = Result<(), Error>>, u64), Error>
where
C: S3 + Clone,
R: Fn() -> PutObjectRequest + Clone + Unpin + Sync + Send,
{
let (stream, len) = self.create_stream().await?;
let key = self.get_key().to_owned();
let (s3, bucket, default) = (s3.clone(), bucket.clone(), default.clone());
let future = async move {
s3.put_object(PutObjectRequest {
bucket: bucket.clone(),
key: key.clone(),
body: Some(ByteStream::new(stream)),
content_length: Some(len as i64),
..default()
})
.map_err(|e| e.into())
.await
.map(drop)
};
Ok((future, len))
}
pub fn get_key(&self) -> &str {
match self {
Self::File { key, .. } => &key,
Self::Data { key, .. } => &key,
}
}
}
pub fn files_recursive(
src_dir: PathBuf,
key_prefix: PathBuf,
) -> impl Iterator<Item = ObjectSource> {
walkdir::WalkDir::new(&src_dir)
.into_iter()
.filter_map(move |entry| {
let src_dir = src_dir.clone();
let key_prefix = key_prefix.clone();
entry.ok().and_then(move |entry| {
if entry.file_type().is_file() {
let path = entry.path().to_owned();
let key_suffix = path.strip_prefix(&src_dir).unwrap().to_path_buf();
let key = key_prefix.join(&key_suffix);
Some(ObjectSource::File {
path,
key: key.to_string_lossy().to_string(),
})
} else {
None
}
})
})
}
#[cfg(test)]
mod test {
use super::*;
use tempdir::TempDir;
#[test]
fn test_files_recursive() {
let tmp_dir = TempDir::new("s3-testing").unwrap();
let dir = tmp_dir.path();
for i in 0..10 {
std::fs::write(dir.join(format!("img_{}.tif", i)), "file contents").unwrap();
}
let files = files_recursive(dir.to_owned(), PathBuf::new());
assert_eq!(files.count(), 10);
}
}