Method decode

car/src/header.rs:18–33

(buffer: &[u8])

    }

    pub fn decode(buffer: &[u8]) -> Result<Self, Error> {
        let header: CarHeaderV1 =
            serde_ipld_dagcbor::from_slice(buffer).map_err(|e| Error::Parsing(e.to_string()))?;

        if header.roots.is_empty() {
            return Err(Error::Parsing("empty CAR file".to_owned()));
        }

        if header.version != 1 {
            return Err(Error::InvalidFile(
                "Only CAR file version 1 is supported".to_string(),
            ));
        }

        Ok(CarHeader::V1(header))
    }

    pub fn encode(&self) -> Result<Vec<u8>, Error> {
        match self {