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// Copyright 2017 rust-ipfs-api Developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
//
use bytes::BytesMut;
use futures::TryStreamExt;
use ipfs_api::IpfsClient;
use std::io::Cursor;
use tar::Builder;
// Creates an Ipfs client, and adds this source file to Ipfs.
//
#[tokio::main]
async fn main() {
eprintln!("note: this must be run in the root of the project repository");
eprintln!("connecting to localhost:5001...");
let client = IpfsClient::default();
// Create a in-memory tar file with this source file as its contents.
//
let mut buf = Vec::new();
{
let mut builder = Builder::new(&mut buf);
builder
.append_path(file!())
.expect("failed to create tar file");
builder.finish().expect("failed to create tar file");
}
let cursor = Cursor::new(buf);
// Write in-memory tar file to IPFS.
//
let file = match client.tar_add(cursor).await {
Ok(file) => {
eprintln!("added tar file: {:?}", file);
eprintln!();
file
}
Err(e) => {
eprintln!("error writing tar file: {}", e);
return;
}
};
// Read tar file from IPFS.
//
match client
.tar_cat(&file.hash[..])
.map_ok(|chunk| chunk.to_vec())
.try_concat()
.await
{
Ok(tar) => {
println!("{}", String::from_utf8_lossy(&tar[..]));
}
Err(e) => {
eprintln!("error reading tar file: {}", e);
}
}
}
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