From 6111c481fac3d5c305a379b3be8afb87190db3d5 Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Sun, 6 Nov 2022 21:44:13 -0800
Subject: iroh-car: move vendoring into sub-module of pds crate

So we don't need to re-publish this as a separate crate.
---
 iroh-car/src/reader.rs | 99 --------------------------------------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 iroh-car/src/reader.rs

(limited to 'iroh-car/src/reader.rs')

diff --git a/iroh-car/src/reader.rs b/iroh-car/src/reader.rs
deleted file mode 100644
index c0209be..0000000
--- a/iroh-car/src/reader.rs
+++ /dev/null
@@ -1,99 +0,0 @@
-use cid::Cid;
-use futures::Stream;
-use tokio::io::AsyncRead;
-
-use crate::{
-    error::Error,
-    header::CarHeader,
-    util::{ld_read, read_node},
-};
-
-/// Reads CAR files that are in a BufReader
-pub struct CarReader<R> {
-    reader: R,
-    header: CarHeader,
-    buffer: Vec<u8>,
-}
-
-impl<R> CarReader<R>
-where
-    R: AsyncRead + Send + Unpin,
-{
-    /// Creates a new CarReader and parses the CarHeader
-    pub async fn new(mut reader: R) -> Result<Self, Error> {
-        let mut buffer = Vec::new();
-
-        match ld_read(&mut reader, &mut buffer).await? {
-            Some(buf) => {
-                let header = CarHeader::decode(buf)?;
-
-                Ok(CarReader {
-                    reader,
-                    header,
-                    buffer,
-                })
-            }
-            None => Err(Error::Parsing(
-                "failed to parse uvarint for header".to_string(),
-            )),
-        }
-    }
-
-    /// Returns the header of this car file.
-    pub fn header(&self) -> &CarHeader {
-        &self.header
-    }
-
-    /// Returns the next IPLD Block in the buffer
-    pub async fn next_block(&mut self) -> Result<Option<(Cid, Vec<u8>)>, Error> {
-        read_node(&mut self.reader, &mut self.buffer).await
-    }
-
-    pub fn stream(self) -> impl Stream<Item = Result<(Cid, Vec<u8>), Error>> {
-        futures::stream::try_unfold(self, |mut this| async move {
-            let maybe_block = read_node(&mut this.reader, &mut this.buffer).await?;
-            Ok(maybe_block.map(|b| (b, this)))
-        })
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use std::io::Cursor;
-
-    use cid::Cid;
-    use futures::TryStreamExt;
-    use ipld_cbor::DagCborCodec;
-    use multihash::MultihashDigest;
-
-    use crate::{header::CarHeaderV1, writer::CarWriter};
-
-    use super::*;
-
-    #[tokio::test]
-    async fn car_write_read() {
-        let digest_test = multihash::Code::Blake2b256.digest(b"test");
-        let cid_test = Cid::new_v1(DagCborCodec.into(), digest_test);
-
-        let digest_foo = multihash::Code::Blake2b256.digest(b"foo");
-        let cid_foo = Cid::new_v1(DagCborCodec.into(), digest_foo);
-
-        let header = CarHeader::V1(CarHeaderV1::from(vec![cid_foo]));
-
-        let mut buffer = Vec::new();
-        let mut writer = CarWriter::new(header, &mut buffer);
-        writer.write(cid_test, b"test").await.unwrap();
-        writer.write(cid_foo, b"foo").await.unwrap();
-        writer.finish().await.unwrap();
-
-        let reader = Cursor::new(&buffer);
-        let car_reader = CarReader::new(reader).await.unwrap();
-        let files: Vec<_> = car_reader.stream().try_collect().await.unwrap();
-
-        assert_eq!(files.len(), 2);
-        assert_eq!(files[0].0, cid_test);
-        assert_eq!(files[0].1, b"test");
-        assert_eq!(files[1].0, cid_foo);
-        assert_eq!(files[1].1, b"foo");
-    }
-}
-- 
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