Fix Clippy lints and improve documentation

This commit is contained in:
Nathan Fisher 2024-01-17 01:58:36 -05:00
parent ab259da64b
commit c60e385dd0
10 changed files with 145 additions and 99 deletions

140
Cargo.lock generated
View File

@ -75,55 +75,37 @@ checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
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] ]
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"cfg-if",
"crossbeam-utils",
]
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name = "crossbeam-deque" name = "crossbeam-deque"
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"crossbeam-utils", "crossbeam-utils",
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"scopeguard",
] ]
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"cfg-if",
]
[[package]] [[package]]
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@ -147,9 +129,9 @@ dependencies = [
[[package]] [[package]]
name = "either" name = "either"
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]] [[package]]
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@ -174,12 +156,6 @@ dependencies = [
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] ]
[[package]]
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[[package]] [[package]]
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@ -205,18 +181,18 @@ dependencies = [
[[package]] [[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
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] ]
[[package]] [[package]]
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@ -226,22 +202,14 @@ checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
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"digest", "digest",
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[[package]] [[package]]
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@ -251,16 +219,6 @@ dependencies = [
"autocfg", "autocfg",
] ]
[[package]]
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"libc",
]
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@ -269,27 +227,27 @@ checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
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dependencies = [ dependencies = [
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] ]
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dependencies = [ dependencies = [
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] ]
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dependencies = [ dependencies = [
"either", "either",
"rayon-core", "rayon-core",
@ -297,27 +255,19 @@ dependencies = [
[[package]] [[package]]
name = "rayon-core" name = "rayon-core"
version = "1.11.0" version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"crossbeam-channel",
"crossbeam-deque", "crossbeam-deque",
"crossbeam-utils", "crossbeam-utils",
"num_cpus",
] ]
[[package]]
name = "scopeguard"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]] [[package]]
name = "sha1" name = "sha1"
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
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"cpufeatures", "cpufeatures",
@ -326,9 +276,9 @@ dependencies = [
[[package]] [[package]]
name = "sha2" name = "sha2"
version = "0.10.7" version = "0.10.8"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"cfg-if", "cfg-if",
"cpufeatures", "cpufeatures",
@ -337,9 +287,9 @@ dependencies = [
[[package]] [[package]]
name = "syn" name = "syn"
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"proc-macro2", "proc-macro2",
"quote", "quote",
@ -348,18 +298,18 @@ dependencies = [
[[package]] [[package]]
name = "termcolor" name = "termcolor"
version = "1.4.0" version = "1.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"winapi-util", "winapi-util",
] ]
[[package]] [[package]]
name = "typenum" name = "typenum"
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[[package]] [[package]]
name = "unicode-ident" name = "unicode-ident"
@ -375,9 +325,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
[[package]] [[package]]
name = "wasm-bindgen" name = "wasm-bindgen"
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source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ed0d4f68a3015cc185aff4db9506a015f4b96f95303897bfa23f846db54064e" checksum = "b1223296a201415c7fad14792dbefaace9bd52b62d33453ade1c5b5f07555406"
dependencies = [ dependencies = [
"cfg-if", "cfg-if",
"wasm-bindgen-macro", "wasm-bindgen-macro",
@ -385,9 +335,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-backend" name = "wasm-bindgen-backend"
version = "0.2.89" version = "0.2.90"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1b56f625e64f3a1084ded111c4d5f477df9f8c92df113852fa5a374dbda78826" checksum = "fcdc935b63408d58a32f8cc9738a0bffd8f05cc7c002086c6ef20b7312ad9dcd"
dependencies = [ dependencies = [
"bumpalo", "bumpalo",
"log", "log",
@ -400,9 +350,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-macro" name = "wasm-bindgen-macro"
version = "0.2.89" version = "0.2.90"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0162dbf37223cd2afce98f3d0785506dcb8d266223983e4b5b525859e6e182b2" checksum = "3e4c238561b2d428924c49815533a8b9121c664599558a5d9ec51f8a1740a999"
dependencies = [ dependencies = [
"quote", "quote",
"wasm-bindgen-macro-support", "wasm-bindgen-macro-support",
@ -410,9 +360,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-macro-support" name = "wasm-bindgen-macro-support"
version = "0.2.89" version = "0.2.90"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [ dependencies = [
"proc-macro2", "proc-macro2",
"quote", "quote",
@ -423,9 +373,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-shared" name = "wasm-bindgen-shared"
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[[package]] [[package]]
name = "winapi" name = "winapi"

View File

@ -12,7 +12,7 @@ color = ["dep:termcolor"]
chrono = "0.4" chrono = "0.4"
libc = "0.2" libc = "0.2"
md-5 = "0.10" md-5 = "0.10"
rayon = { version = "1.7", optional = true } rayon = { version = "1.8", optional = true }
sha1 = "0.10" sha1 = "0.10"
sha2 = "0.10" sha2 = "0.10"
termcolor = { version = "1.4", optional = true } termcolor = { version = "1.4", optional = true }

View File

@ -6,11 +6,26 @@ use {
}, },
}; };
/// A hashing algorithm used for checking file integrity
#[derive(Clone, Copy, Debug)] #[derive(Clone, Copy, Debug)]
pub enum Algorithm { pub enum Algorithm {
/// The [md5](https://www.ietf.org/rfc/rfc1321.txt) hash is
/// a widely deployed fast hash included for completeness.
/// As md5 is not cryptographically secure and collisions have
/// been proven to occur, the newer sha\[x\] algorithms are to
/// be preferred
Md5, Md5,
/// The [sha1](https://datatracker.ietf.org/doc/html/rfc3174)
/// hash is competitive in speed to md5 while having significantly
/// lower possibility of hash collision. Use this hash method if
/// you want goot file integrity checking coupled with low overhead.
Sha1, Sha1,
/// The [sha256](https://tools.ietf.org/html/rfc6234) hash is
/// a cryptographically secure hash that is stronger than both
/// md5 and sha1. Use this hash when the importance of file
/// integrity far outweighs performance considerations.
Sha256, Sha256,
/// Do not use file integrity checks
Skip, Skip,
} }
@ -31,7 +46,8 @@ impl FromStr for Algorithm {
/// Optional checksumming for individual files /// Optional checksumming for individual files
#[derive(Debug)] #[derive(Debug)]
pub enum Checksum { pub enum Checksum {
/// Md5 checksumming, fastest /// Md5 checksumming, fastest, but collisions have occurred. Not recommended
/// for production use.
Md5([u8; 16]), Md5([u8; 16]),
/// Sha1 checksumming. On par with md5. /// Sha1 checksumming. On par with md5.
Sha1([u8; 20]), Sha1([u8; 20]),
@ -45,6 +61,9 @@ pub enum Checksum {
} }
impl Checksum { impl Checksum {
/// Reads a `Checksum` item into memory from a byte stream
/// # Errors
/// Returns an `Error` if io fails or the archive is incorrectly formatted
pub(crate) fn read<T: Read>(reader: &mut T) -> Result<Self, Error> { pub(crate) fn read<T: Read>(reader: &mut T) -> Result<Self, Error> {
let mut buf = [0; 1]; let mut buf = [0; 1];
reader.read_exact(&mut buf)?; reader.read_exact(&mut buf)?;
@ -68,6 +87,9 @@ impl Checksum {
} }
} }
/// Writes a `Checksum` into a byte stream
/// # Errors
/// Returns `Error` if io fails
pub(crate) fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> { pub(crate) fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> {
match self { match self {
Self::Md5(sum) => { Self::Md5(sum) => {

View File

@ -18,6 +18,10 @@ pub struct File {
} }
impl File { impl File {
/// Read a `File` structure from a stream of bytes
/// # Errors
/// Can return `Error` if io fails or the byte stream is not a valid
/// **Haggis** archive
pub(crate) fn read<T: Read>(reader: &mut T) -> Result<Self, Error> { pub(crate) fn read<T: Read>(reader: &mut T) -> Result<Self, Error> {
let mut len = [0; 8]; let mut len = [0; 8];
reader.read_exact(&mut len)?; reader.read_exact(&mut len)?;
@ -77,6 +81,9 @@ impl File {
} }
} }
/// Writes a `File` structure into a stream of bytes
/// # Errors
/// Can return `Error` if io fails
pub(crate) fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> { pub(crate) fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> {
writer.write_all(&self.len.to_le_bytes())?; writer.write_all(&self.len.to_le_bytes())?;
Checksum::write(&self.checksum, writer)?; Checksum::write(&self.checksum, writer)?;

View File

@ -74,6 +74,9 @@ pub fn stream_archive<W: Write>(
Ok(()) Ok(())
} }
/// A message to be passed to another thread when a `Node` is created or saved.
/// Useful when creating a `Node` in a background thread and displaying progress
/// in the main thread
#[cfg(feature = "parallel")] #[cfg(feature = "parallel")]
#[derive(Debug)] #[derive(Debug)]
pub enum Message { pub enum Message {

View File

@ -14,15 +14,32 @@ use {
}, },
}; };
/// An item representing the `Filetype` of a `Node` without
/// including a file's actual data or checksum.
#[derive(Debug, PartialEq, Eq)] #[derive(Debug, PartialEq, Eq)]
pub enum Kind { pub enum Kind {
/// A regular file. The associated `u64` represents the files
/// size in bytes.
Normal(u64), Normal(u64),
/// A hard link to another member of this archive. The associated
/// `String` represents the target of the link
HardLink(String), HardLink(String),
/// A symlink to another file. The associated `String` represents
/// the target of the link.
SoftLink(String), SoftLink(String),
/// A directory entry
Directory, Directory,
/// A character (buffered) device file. The associated `Special`
/// struct represents the **major** and **minor** numbers of the
/// device file.
Character(Special), Character(Special),
/// A block (non-buffered) device file. The associated `Special`
/// struct represents the **major** and **minor** numbers of the
/// device file.
Block(Special), Block(Special),
/// A named pipe
Fifo, Fifo,
/// The end of the archive
Eof, Eof,
} }
@ -42,6 +59,8 @@ impl From<FileType> for Kind {
} }
impl Kind { impl Kind {
/// Reads an item from a stream of bytes. The stream can be anything implementing
/// both `Read` and `Seek`
#[allow(clippy::cast_possible_wrap)] #[allow(clippy::cast_possible_wrap)]
fn read<R: Read + Seek>(reader: &mut R, flag: Flag) -> Result<Self, Error> { fn read<R: Read + Seek>(reader: &mut R, flag: Flag) -> Result<Self, Error> {
match flag { match flag {
@ -102,6 +121,17 @@ impl Kind {
} }
} }
/// An item representing a `Node` with all relavent metadata minus
/// the bytes making up the file and the file's checksum. Useful
/// for examining the contents of an archive by printing file listings.
/// > Note: Because this type can be read from an archive while skipping over
/// > the bytes making up the file's contents and checksum, it can be created
/// > faster than a `Node` and takes up less space in memory. However, it may
/// > not always be possible to create a `Listing` directly, as in the case
/// > where the underlying byte stream does not implement `Seek`, such as with
/// > a zstd compressed archive. In this case, a `Node` can be read from the
/// > stream and converted to a `Listing` using `From`, which will still save
/// > on overall memory usage when listing all files in an archive.
#[derive(Debug, PartialEq, Eq)] #[derive(Debug, PartialEq, Eq)]
pub struct Listing { pub struct Listing {
pub name: String, pub name: String,
@ -262,6 +292,11 @@ impl Listing {
}) })
} }
/// Prints a line with relavent metadata included,
/// colorizing the filename based on the filetype.
/// Similar to GNU `ls --long --color auto`
/// # Errors
/// Can return an `Error` if stdout is unavailable
#[allow(clippy::cast_possible_wrap)] #[allow(clippy::cast_possible_wrap)]
#[cfg(feature = "color")] #[cfg(feature = "color")]
pub fn print_color(&self) -> Result<(), Error> { pub fn print_color(&self) -> Result<(), Error> {
@ -363,6 +398,10 @@ impl Listing {
Ok(()) Ok(())
} }
/// Prints just the filename representing the `Listing` item,
/// coloring each line based on the filetype
/// # Errors
/// Can return an `Error` if stdout is unavailable
#[cfg(feature = "color")] #[cfg(feature = "color")]
pub fn print_color_simple(&self) -> Result<(), Error> { pub fn print_color_simple(&self) -> Result<(), Error> {
let mut stdout = StandardStream::stdout(ColorChoice::Auto); let mut stdout = StandardStream::stdout(ColorChoice::Auto);

View File

@ -6,6 +6,8 @@ use {
}, },
}; };
/// An iterator over `Listing` items, used for displaying the contents of a
/// *Haggis* archive
#[derive(Debug)] #[derive(Debug)]
pub struct ListingStream<R: Read + Send> { pub struct ListingStream<R: Read + Send> {
pub length: u32, pub length: u32,
@ -28,6 +30,12 @@ impl<R: Read + Send + Seek> Iterator for ListingStream<R> {
} }
impl<R: Read + Send + Seek> ListingStream<R> { impl<R: Read + Send + Seek> ListingStream<R> {
/// Creates a new `ListingStream` from the given reader,
/// which should be a stream of bytes making up a valid Haggis
/// archive.
///# Errors
/// Can return `Error` if an io error occurs or if the arvhice
/// is incorrectly formatted
pub fn new(mut reader: R) -> Result<Self, Error> { pub fn new(mut reader: R) -> Result<Self, Error> {
let mut buf = [0; 11]; let mut buf = [0; 11];
reader.read_exact(&mut buf)?; reader.read_exact(&mut buf)?;
@ -39,6 +47,11 @@ impl<R: Read + Send + Seek> ListingStream<R> {
} }
} }
/// Creates a `Vec` of `Listing` structs representing every `Node`
/// making up the archive
/// # Errors
/// Can return `Error` if an io error occurs or if the archive is
/// incorrectly formatted
pub fn list(&mut self) -> Result<Vec<Listing>, Error> { pub fn list(&mut self) -> Result<Vec<Listing>, Error> {
let mut list = vec![]; let mut list = vec![];
for listing in self { for listing in self {

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@ -10,6 +10,8 @@ pub fn geteuid() -> u32 {
unsafe { libc::geteuid() } unsafe { libc::geteuid() }
} }
/// A wrapper around the libc **chown** function, used for changing file
/// ownership
#[allow(clippy::similar_names)] #[allow(clippy::similar_names)]
pub fn chown(path: &str, uid: u32, gid: u32) -> Result<(), Error> { pub fn chown(path: &str, uid: u32, gid: u32) -> Result<(), Error> {
let ret = unsafe { libc::chown(CString::new(path)?.as_ptr(), uid, gid) }; let ret = unsafe { libc::chown(CString::new(path)?.as_ptr(), uid, gid) };
@ -20,6 +22,8 @@ pub fn chown(path: &str, uid: u32, gid: u32) -> Result<(), Error> {
} }
} }
/// A wrapper around the libc **chmod** function, used for changing file
/// permissions
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
pub fn chmod(path: &str, mode: u32) -> Result<(), Error> { pub fn chmod(path: &str, mode: u32) -> Result<(), Error> {
let ret = unsafe { libc::chmod(CString::new(path)?.as_ptr(), mode) }; let ret = unsafe { libc::chmod(CString::new(path)?.as_ptr(), mode) };
@ -30,6 +34,8 @@ pub fn chmod(path: &str, mode: u32) -> Result<(), Error> {
} }
} }
/// A wrapper around the libc **chmod** function, used for changing file
/// permissions
#[cfg(target_os = "freebsd")] #[cfg(target_os = "freebsd")]
pub fn chmod(path: &str, mode: u32) -> Result<(), Error> { pub fn chmod(path: &str, mode: u32) -> Result<(), Error> {
let ret = unsafe { libc::chmod(CString::new(path)?.as_ptr(), mode.try_into()?) }; let ret = unsafe { libc::chmod(CString::new(path)?.as_ptr(), mode.try_into()?) };
@ -40,6 +46,7 @@ pub fn chmod(path: &str, mode: u32) -> Result<(), Error> {
} }
} }
/// A wrapper around the libc **mkfifo** function, for creating named pipes
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> { pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> {
let ret = unsafe { libc::mkfifo(CString::new(path)?.as_ptr(), mode) }; let ret = unsafe { libc::mkfifo(CString::new(path)?.as_ptr(), mode) };
@ -50,6 +57,7 @@ pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> {
} }
} }
/// A wrapper around the libc **mkfifo** function, for creating named pipes
#[cfg(target_os = "freebsd")] #[cfg(target_os = "freebsd")]
pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> { pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> {
let ret = unsafe { libc::mkfifo(CString::new(path)?.as_ptr(), mode.try_into()?) }; let ret = unsafe { libc::mkfifo(CString::new(path)?.as_ptr(), mode.try_into()?) };
@ -60,6 +68,7 @@ pub fn mkfifo(path: &str, mode: u32) -> Result<(), Error> {
} }
} }
/// A wrapper around the libc **mknod** function, for creating Unix device files
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
pub fn mknod(path: &str, mode: u32, major: u32, minor: u32) -> Result<(), Error> { pub fn mknod(path: &str, mode: u32, major: u32, minor: u32) -> Result<(), Error> {
let dev = libc::makedev(major, minor); let dev = libc::makedev(major, minor);
@ -71,6 +80,7 @@ pub fn mknod(path: &str, mode: u32, major: u32, minor: u32) -> Result<(), Error>
} }
} }
/// A wrapper around the libc **mknod** function, for creating Unix device files
#[cfg(target_os = "freebsd")] #[cfg(target_os = "freebsd")]
pub fn mknod(path: &str, mode: u32, major: u32, minor: u32) -> Result<(), Error> { pub fn mknod(path: &str, mode: u32, major: u32, minor: u32) -> Result<(), Error> {
let dev = libc::makedev(major, minor); let dev = libc::makedev(major, minor);

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@ -64,7 +64,7 @@ impl Node {
/// > Note: this function reads an already created node. To create a new node /// > Note: this function reads an already created node. To create a new node
/// > from a file, use the `from_path` method. /// > from a file, use the `from_path` method.
/// # Errors /// # Errors
/// Returns `crate::Error` if io fails or certain other circumstances /// Returns `crate::Error` if io fails or the archive is incorrectly formatted
pub fn read<T: Read>(reader: &mut T) -> Result<Self, Error> { pub fn read<T: Read>(reader: &mut T) -> Result<Self, Error> {
let mut len = [0; 2]; let mut len = [0; 2];
reader.read_exact(&mut len)?; reader.read_exact(&mut len)?;
@ -106,7 +106,7 @@ impl Node {
/// > representation. To extract the contents of a `Node` and write out the /// > representation. To extract the contents of a `Node` and write out the
/// > file it represents, use the `extract` method instead. /// > file it represents, use the `extract` method instead.
/// # Errors /// # Errors
/// Returns `crate::Error` if io fails or certain other circumstances /// Returns `crate::Error` if io fails
pub fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> { pub fn write<T: Write>(&self, writer: &mut T) -> Result<(), Error> {
let len: u16 = self.name.len().try_into()?; let len: u16 = self.name.len().try_into()?;
writer.write_all(&len.to_le_bytes())?; writer.write_all(&len.to_le_bytes())?;

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@ -36,6 +36,8 @@ impl<R: Read + Send> Iterator for Stream<R> {
} }
} }
/// A message to be passed from a background thread to a foreground thread when
/// a `Node` extraction has finished
#[cfg(feature = "parallel")] #[cfg(feature = "parallel")]
#[derive(Debug)] #[derive(Debug)]
pub enum Message { pub enum Message {