Merge pull request #5987 from edolstra/rust-cleanup

Remove unused Rust stuff
This commit is contained in:
Eelco Dolstra 2022-01-25 13:57:22 +01:00 committed by GitHub
commit 5fa624f59a
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16 changed files with 0 additions and 1587 deletions

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nix-rust/Cargo.lock generated
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"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

View file

@ -1,23 +0,0 @@
[package]
name = "nix-rust"
version = "0.1.0"
authors = ["Eelco Dolstra <edolstra@gmail.com>"]
edition = "2018"
[lib]
name = "nixrust"
crate-type = ["cdylib"]
[dependencies]
libc = "0.2"
#futures-preview = { version = "=0.3.0-alpha.19" }
#hyper = "0.13.0-alpha.4"
#http = "0.1"
#tokio = { version = "0.2.0-alpha.6", default-features = false, features = ["rt-full"] }
lazy_static = "1.4"
#byteorder = "1.3"
[dev-dependencies]
hex = "0.3"
assert_matches = "1.3"
proptest = "0.9"

View file

@ -1,48 +0,0 @@
ifeq ($(OPTIMIZE), 1)
RUST_MODE = --release
RUST_DIR = release
else
RUST_MODE =
RUST_DIR = debug
endif
libnixrust_PATH := $(d)/target/$(RUST_DIR)/libnixrust.$(SO_EXT)
libnixrust_INSTALL_PATH := $(libdir)/libnixrust.$(SO_EXT)
libnixrust_LDFLAGS_USE := -L$(d)/target/$(RUST_DIR) -lnixrust
libnixrust_LDFLAGS_USE_INSTALLED := -L$(libdir) -lnixrust
ifdef HOST_LINUX
libnixrust_LDFLAGS_USE += -ldl
libnixrust_LDFLAGS_USE_INSTALLED += -ldl
endif
ifdef HOST_DARWIN
libnixrust_BUILD_FLAGS = NIX_LDFLAGS="-undefined dynamic_lookup"
else
libnixrust_LDFLAGS_USE += -Wl,-rpath,$(abspath $(d)/target/$(RUST_DIR))
libnixrust_LDFLAGS_USE_INSTALLED += -Wl,-rpath,$(libdir)
endif
$(libnixrust_PATH): $(call rwildcard, $(d)/src, *.rs) $(d)/Cargo.toml
$(trace-gen) cd nix-rust && CARGO_HOME=$$(if [[ -d vendor ]]; then echo vendor; fi) \
$(libnixrust_BUILD_FLAGS) \
cargo build $(RUST_MODE) $$(if [[ -d vendor ]]; then echo --offline; fi) \
&& touch target/$(RUST_DIR)/libnixrust.$(SO_EXT)
$(libnixrust_INSTALL_PATH): $(libnixrust_PATH)
$(target-gen) cp $^ $@
ifdef HOST_DARWIN
install_name_tool -id $@ $@
endif
clean: clean-rust
clean-rust:
$(suppress) rm -rfv nix-rust/target
ifndef HOST_DARWIN
check: rust-tests
rust-tests:
$(trace-test) cd nix-rust && CARGO_HOME=$$(if [[ -d vendor ]]; then echo vendor; fi) cargo test --release $$(if [[ -d vendor ]]; then echo --offline; fi)
endif

View file

@ -1,77 +0,0 @@
use super::{error, store::path, store::StorePath, util};
#[no_mangle]
pub unsafe extern "C" fn ffi_String_new(s: &str, out: *mut String) {
// FIXME: check whether 's' is valid UTF-8?
out.write(s.to_string())
}
#[no_mangle]
pub unsafe extern "C" fn ffi_String_drop(self_: *mut String) {
std::ptr::drop_in_place(self_);
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_new(
path: &str,
store_dir: &str,
) -> Result<StorePath, error::CppException> {
StorePath::new(std::path::Path::new(path), std::path::Path::new(store_dir))
.map_err(|err| err.into())
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_new2(
hash: &[u8; crate::store::path::STORE_PATH_HASH_BYTES],
name: &str,
) -> Result<StorePath, error::CppException> {
StorePath::from_parts(*hash, name).map_err(|err| err.into())
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_fromBaseName(
base_name: &str,
) -> Result<StorePath, error::CppException> {
StorePath::new_from_base_name(base_name).map_err(|err| err.into())
}
#[no_mangle]
pub unsafe extern "C" fn ffi_StorePath_drop(self_: *mut StorePath) {
std::ptr::drop_in_place(self_);
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_to_string(self_: &StorePath) -> Vec<u8> {
let mut buf = vec![0; path::STORE_PATH_HASH_CHARS + 1 + self_.name.name().len()];
util::base32::encode_into(self_.hash.hash(), &mut buf[0..path::STORE_PATH_HASH_CHARS]);
buf[path::STORE_PATH_HASH_CHARS] = b'-';
buf[path::STORE_PATH_HASH_CHARS + 1..].clone_from_slice(self_.name.name().as_bytes());
buf
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_less_than(a: &StorePath, b: &StorePath) -> bool {
a < b
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_eq(a: &StorePath, b: &StorePath) -> bool {
a == b
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_clone(self_: &StorePath) -> StorePath {
self_.clone()
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_name(self_: &StorePath) -> &str {
self_.name.name()
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_hash_data(
self_: &StorePath,
) -> &[u8; crate::store::path::STORE_PATH_HASH_BYTES] {
self_.hash.hash()
}

View file

@ -1,118 +0,0 @@
use std::fmt;
#[derive(Debug)]
pub enum Error {
InvalidPath(crate::store::StorePath),
BadStorePath(std::path::PathBuf),
NotInStore(std::path::PathBuf),
BadNarInfo,
BadBase32,
StorePathNameEmpty,
StorePathNameTooLong,
BadStorePathName,
NarSizeFieldTooBig,
BadNarString,
BadNarPadding,
BadNarVersionMagic,
MissingNarOpenTag,
MissingNarCloseTag,
MissingNarField,
BadNarField(String),
BadExecutableField,
IOError(std::io::Error),
#[cfg(unused)]
HttpError(hyper::error::Error),
Misc(String),
#[cfg(not(test))]
Foreign(CppException),
BadTarFileMemberName(String),
}
impl From<std::io::Error> for Error {
fn from(err: std::io::Error) -> Self {
Error::IOError(err)
}
}
#[cfg(unused)]
impl From<hyper::error::Error> for Error {
fn from(err: hyper::error::Error) -> Self {
Error::HttpError(err)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Error::InvalidPath(_) => write!(f, "invalid path"),
Error::BadNarInfo => write!(f, ".narinfo file is corrupt"),
Error::BadStorePath(path) => write!(f, "path '{}' is not a store path", path.display()),
Error::NotInStore(path) => {
write!(f, "path '{}' is not in the Nix store", path.display())
}
Error::BadBase32 => write!(f, "invalid base32 string"),
Error::StorePathNameEmpty => write!(f, "store path name is empty"),
Error::StorePathNameTooLong => {
write!(f, "store path name is longer than 211 characters")
}
Error::BadStorePathName => write!(f, "store path name contains forbidden character"),
Error::NarSizeFieldTooBig => write!(f, "size field in NAR is too big"),
Error::BadNarString => write!(f, "NAR string is not valid UTF-8"),
Error::BadNarPadding => write!(f, "NAR padding is not zero"),
Error::BadNarVersionMagic => write!(f, "unsupported NAR version"),
Error::MissingNarOpenTag => write!(f, "NAR open tag is missing"),
Error::MissingNarCloseTag => write!(f, "NAR close tag is missing"),
Error::MissingNarField => write!(f, "expected NAR field is missing"),
Error::BadNarField(s) => write!(f, "unrecognized NAR field '{}'", s),
Error::BadExecutableField => write!(f, "bad 'executable' field in NAR"),
Error::IOError(err) => write!(f, "I/O error: {}", err),
#[cfg(unused)]
Error::HttpError(err) => write!(f, "HTTP error: {}", err),
#[cfg(not(test))]
Error::Foreign(_) => write!(f, "<C++ exception>"), // FIXME
Error::Misc(s) => write!(f, "{}", s),
Error::BadTarFileMemberName(s) => {
write!(f, "tar archive contains illegal file name '{}'", s)
}
}
}
}
#[cfg(not(test))]
impl From<Error> for CppException {
fn from(err: Error) -> Self {
match err {
Error::Foreign(ex) => ex,
_ => CppException::new(&err.to_string()),
}
}
}
#[cfg(not(test))]
#[repr(C)]
#[derive(Debug)]
pub struct CppException(*const libc::c_void); // == std::exception_ptr*
#[cfg(not(test))]
impl CppException {
fn new(s: &str) -> Self {
Self(unsafe { make_error(s) })
}
}
#[cfg(not(test))]
impl Drop for CppException {
fn drop(&mut self) {
unsafe {
destroy_error(self.0);
}
}
}
#[cfg(not(test))]
extern "C" {
#[allow(improper_ctypes)] // YOLO
fn make_error(s: &str) -> *const libc::c_void;
fn destroy_error(exc: *const libc::c_void);
}

View file

@ -1,10 +0,0 @@
#[allow(improper_ctypes_definitions)]
#[cfg(not(test))]
mod c;
mod error;
#[cfg(unused)]
mod nar;
mod store;
mod util;
pub use error::Error;

View file

@ -1,126 +0,0 @@
use crate::Error;
use byteorder::{LittleEndian, ReadBytesExt};
use std::convert::TryFrom;
use std::io::Read;
pub fn parse<R: Read>(input: &mut R) -> Result<(), Error> {
if String::read(input)? != NAR_VERSION_MAGIC {
return Err(Error::BadNarVersionMagic);
}
parse_file(input)
}
const NAR_VERSION_MAGIC: &str = "nix-archive-1";
fn parse_file<R: Read>(input: &mut R) -> Result<(), Error> {
if String::read(input)? != "(" {
return Err(Error::MissingNarOpenTag);
}
if String::read(input)? != "type" {
return Err(Error::MissingNarField);
}
match String::read(input)?.as_ref() {
"regular" => {
let mut _executable = false;
let mut tag = String::read(input)?;
if tag == "executable" {
_executable = true;
if String::read(input)? != "" {
return Err(Error::BadExecutableField);
}
tag = String::read(input)?;
}
if tag != "contents" {
return Err(Error::MissingNarField);
}
let _contents = Vec::<u8>::read(input)?;
if String::read(input)? != ")" {
return Err(Error::MissingNarCloseTag);
}
}
"directory" => loop {
match String::read(input)?.as_ref() {
"entry" => {
if String::read(input)? != "(" {
return Err(Error::MissingNarOpenTag);
}
if String::read(input)? != "name" {
return Err(Error::MissingNarField);
}
let _name = String::read(input)?;
if String::read(input)? != "node" {
return Err(Error::MissingNarField);
}
parse_file(input)?;
let tag = String::read(input)?;
if tag != ")" {
return Err(Error::MissingNarCloseTag);
}
}
")" => break,
s => return Err(Error::BadNarField(s.into())),
}
},
"symlink" => {
if String::read(input)? != "target" {
return Err(Error::MissingNarField);
}
let _target = String::read(input)?;
if String::read(input)? != ")" {
return Err(Error::MissingNarCloseTag);
}
}
s => return Err(Error::BadNarField(s.into())),
}
Ok(())
}
trait Deserialize: Sized {
fn read<R: Read>(input: &mut R) -> Result<Self, Error>;
}
impl Deserialize for String {
fn read<R: Read>(input: &mut R) -> Result<Self, Error> {
let buf = Deserialize::read(input)?;
Ok(String::from_utf8(buf).map_err(|_| Error::BadNarString)?)
}
}
impl Deserialize for Vec<u8> {
fn read<R: Read>(input: &mut R) -> Result<Self, Error> {
let n: usize = Deserialize::read(input)?;
let mut buf = vec![0; n];
input.read_exact(&mut buf)?;
skip_padding(input, n)?;
Ok(buf)
}
}
fn skip_padding<R: Read>(input: &mut R, len: usize) -> Result<(), Error> {
if len % 8 != 0 {
let mut buf = [0; 8];
let buf = &mut buf[0..8 - (len % 8)];
input.read_exact(buf)?;
if !buf.iter().all(|b| *b == 0) {
return Err(Error::BadNarPadding);
}
}
Ok(())
}
impl Deserialize for u64 {
fn read<R: Read>(input: &mut R) -> Result<Self, Error> {
Ok(input.read_u64::<LittleEndian>()?)
}
}
impl Deserialize for usize {
fn read<R: Read>(input: &mut R) -> Result<Self, Error> {
let n: u64 = Deserialize::read(input)?;
Ok(usize::try_from(n).map_err(|_| Error::NarSizeFieldTooBig)?)
}
}

View file

@ -1,48 +0,0 @@
use super::{PathInfo, Store, StorePath};
use crate::Error;
use hyper::client::Client;
pub struct BinaryCacheStore {
base_uri: String,
client: Client<hyper::client::HttpConnector, hyper::Body>,
}
impl BinaryCacheStore {
pub fn new(base_uri: String) -> Self {
Self {
base_uri,
client: Client::new(),
}
}
}
impl Store for BinaryCacheStore {
fn query_path_info(
&self,
path: &StorePath,
) -> std::pin::Pin<Box<dyn std::future::Future<Output = Result<PathInfo, Error>> + Send>> {
let uri = format!("{}/{}.narinfo", self.base_uri.clone(), path.hash);
let path = path.clone();
let client = self.client.clone();
let store_dir = self.store_dir().to_string();
Box::pin(async move {
let response = client.get(uri.parse::<hyper::Uri>().unwrap()).await?;
if response.status() == hyper::StatusCode::NOT_FOUND
|| response.status() == hyper::StatusCode::FORBIDDEN
{
return Err(Error::InvalidPath(path));
}
let mut body = response.into_body();
let mut bytes = Vec::new();
while let Some(next) = body.next().await {
bytes.extend(next?);
}
PathInfo::parse_nar_info(std::str::from_utf8(&bytes).unwrap(), &store_dir)
})
}
}

View file

@ -1,17 +0,0 @@
pub mod path;
#[cfg(unused)]
mod binary_cache_store;
#[cfg(unused)]
mod path_info;
#[cfg(unused)]
mod store;
pub use path::{StorePath, StorePathHash, StorePathName};
#[cfg(unused)]
pub use binary_cache_store::BinaryCacheStore;
#[cfg(unused)]
pub use path_info::PathInfo;
#[cfg(unused)]
pub use store::Store;

View file

@ -1,224 +0,0 @@
use crate::error::Error;
use crate::util::base32;
use std::fmt;
use std::path::Path;
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Debug)]
pub struct StorePath {
pub hash: StorePathHash,
pub name: StorePathName,
}
pub const STORE_PATH_HASH_BYTES: usize = 20;
pub const STORE_PATH_HASH_CHARS: usize = 32;
impl StorePath {
pub fn new(path: &Path, store_dir: &Path) -> Result<Self, Error> {
if path.parent() != Some(store_dir) {
return Err(Error::NotInStore(path.into()));
}
Self::new_from_base_name(
path.file_name()
.ok_or_else(|| Error::BadStorePath(path.into()))?
.to_str()
.ok_or_else(|| Error::BadStorePath(path.into()))?,
)
}
pub fn from_parts(hash: [u8; STORE_PATH_HASH_BYTES], name: &str) -> Result<Self, Error> {
Ok(StorePath {
hash: StorePathHash(hash),
name: StorePathName::new(name)?,
})
}
pub fn new_from_base_name(base_name: &str) -> Result<Self, Error> {
if base_name.len() < STORE_PATH_HASH_CHARS + 1
|| base_name.as_bytes()[STORE_PATH_HASH_CHARS] != b'-'
{
return Err(Error::BadStorePath(base_name.into()));
}
Ok(StorePath {
hash: StorePathHash::new(&base_name[0..STORE_PATH_HASH_CHARS])?,
name: StorePathName::new(&base_name[STORE_PATH_HASH_CHARS + 1..])?,
})
}
}
impl fmt::Display for StorePath {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}-{}", self.hash, self.name)
}
}
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct StorePathHash([u8; STORE_PATH_HASH_BYTES]);
impl StorePathHash {
pub fn new(s: &str) -> Result<Self, Error> {
assert_eq!(s.len(), STORE_PATH_HASH_CHARS);
let v = base32::decode(s)?;
assert_eq!(v.len(), STORE_PATH_HASH_BYTES);
let mut bytes: [u8; 20] = Default::default();
bytes.copy_from_slice(&v[0..STORE_PATH_HASH_BYTES]);
Ok(Self(bytes))
}
pub fn hash(&self) -> &[u8; STORE_PATH_HASH_BYTES] {
&self.0
}
}
impl fmt::Display for StorePathHash {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut buf = vec![0; STORE_PATH_HASH_CHARS];
base32::encode_into(&self.0, &mut buf);
f.write_str(std::str::from_utf8(&buf).unwrap())
}
}
impl Ord for StorePathHash {
fn cmp(&self, other: &Self) -> std::cmp::Ordering {
// Historically we've sorted store paths by their base32
// serialization, but our base32 encodes bytes in reverse
// order. So compare them in reverse order as well.
self.0.iter().rev().cmp(other.0.iter().rev())
}
}
impl PartialOrd for StorePathHash {
fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
Some(self.cmp(other))
}
}
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Debug)]
pub struct StorePathName(String);
impl StorePathName {
pub fn new(s: &str) -> Result<Self, Error> {
if s.is_empty() {
return Err(Error::StorePathNameEmpty);
}
if s.len() > 211 {
return Err(Error::StorePathNameTooLong);
}
let is_good_path_name = s.chars().all(|c| {
c.is_ascii_alphabetic()
|| c.is_ascii_digit()
|| c == '+'
|| c == '-'
|| c == '.'
|| c == '_'
|| c == '?'
|| c == '='
});
if s.starts_with('.') || !is_good_path_name {
return Err(Error::BadStorePathName);
}
Ok(Self(s.to_string()))
}
pub fn name(&self) -> &str {
&self.0
}
}
impl fmt::Display for StorePathName {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(&self.0)
}
}
#[cfg(test)]
mod tests {
use super::*;
use assert_matches::assert_matches;
#[test]
fn test_parse() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-konsole-18.12.3";
let p = StorePath::new_from_base_name(&s).unwrap();
assert_eq!(p.name.0, "konsole-18.12.3");
assert_eq!(
p.hash.0,
[
0x9f, 0x76, 0x49, 0x20, 0xf6, 0x5d, 0xe9, 0x71, 0xc4, 0xca, 0x46, 0x21, 0xab, 0xff,
0x9b, 0x44, 0xef, 0x87, 0x0f, 0x3c
]
);
}
#[test]
fn test_no_name() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::StorePathNameEmpty)
);
}
#[test]
fn test_no_dash() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::BadStorePath(_))
);
}
#[test]
fn test_short_hash() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxl-konsole-18.12.3";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::BadStorePath(_))
);
}
#[test]
fn test_invalid_hash() {
let s = "7h7qgvs4kgzsn8e6rb273saxyqh4jxlz-konsole-18.12.3";
assert_matches!(StorePath::new_from_base_name(&s), Err(Error::BadBase32));
}
#[test]
fn test_long_name() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
assert_matches!(StorePath::new_from_base_name(&s), Ok(_));
}
#[test]
fn test_too_long_name() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::StorePathNameTooLong)
);
}
#[test]
fn test_bad_name() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-foo bar";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::BadStorePathName)
);
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-kónsole";
assert_matches!(
StorePath::new_from_base_name(&s),
Err(Error::BadStorePathName)
);
}
#[test]
fn test_roundtrip() {
let s = "7h7qgvs4kgzsn8a6rb273saxyqh4jxlz-konsole-18.12.3";
assert_eq!(StorePath::new_from_base_name(&s).unwrap().to_string(), s);
}
}

View file

@ -1,70 +0,0 @@
use crate::store::StorePath;
use crate::Error;
use std::collections::BTreeSet;
#[derive(Clone, Debug)]
pub struct PathInfo {
pub path: StorePath,
pub references: BTreeSet<StorePath>,
pub nar_size: u64,
pub deriver: Option<StorePath>,
// Additional binary cache info.
pub url: Option<String>,
pub compression: Option<String>,
pub file_size: Option<u64>,
}
impl PathInfo {
pub fn parse_nar_info(nar_info: &str, store_dir: &str) -> Result<Self, Error> {
let mut path = None;
let mut references = BTreeSet::new();
let mut nar_size = None;
let mut deriver = None;
let mut url = None;
let mut compression = None;
let mut file_size = None;
for line in nar_info.lines() {
let colon = line.find(':').ok_or(Error::BadNarInfo)?;
let (name, value) = line.split_at(colon);
if !value.starts_with(": ") {
return Err(Error::BadNarInfo);
}
let value = &value[2..];
if name == "StorePath" {
path = Some(StorePath::new(std::path::Path::new(value), store_dir)?);
} else if name == "NarSize" {
nar_size = Some(u64::from_str_radix(value, 10).map_err(|_| Error::BadNarInfo)?);
} else if name == "References" {
if !value.is_empty() {
for r in value.split(' ') {
references.insert(StorePath::new_from_base_name(r)?);
}
}
} else if name == "Deriver" {
deriver = Some(StorePath::new_from_base_name(value)?);
} else if name == "URL" {
url = Some(value.into());
} else if name == "Compression" {
compression = Some(value.into());
} else if name == "FileSize" {
file_size = Some(u64::from_str_radix(value, 10).map_err(|_| Error::BadNarInfo)?);
}
}
Ok(PathInfo {
path: path.ok_or(Error::BadNarInfo)?,
references,
nar_size: nar_size.ok_or(Error::BadNarInfo)?,
deriver,
url: Some(url.ok_or(Error::BadNarInfo)?),
compression,
file_size,
})
}
}

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@ -1,53 +0,0 @@
use super::{PathInfo, StorePath};
use crate::Error;
use std::collections::{BTreeMap, BTreeSet};
use std::path::Path;
pub trait Store: Send + Sync {
fn store_dir(&self) -> &str {
"/nix/store"
}
fn query_path_info(
&self,
store_path: &StorePath,
) -> std::pin::Pin<Box<dyn std::future::Future<Output = Result<PathInfo, Error>> + Send>>;
}
impl dyn Store {
pub fn parse_store_path(&self, path: &Path) -> Result<StorePath, Error> {
StorePath::new(path, self.store_dir())
}
pub async fn compute_path_closure(
&self,
roots: BTreeSet<StorePath>,
) -> Result<BTreeMap<StorePath, PathInfo>, Error> {
let mut done = BTreeSet::new();
let mut result = BTreeMap::new();
let mut pending = vec![];
for root in roots {
pending.push(self.query_path_info(&root));
done.insert(root);
}
while !pending.is_empty() {
let (info, _, remaining) = futures::future::select_all(pending).await;
pending = remaining;
let info = info?;
for path in &info.references {
if !done.contains(path) {
pending.push(self.query_path_info(&path));
done.insert(path.clone());
}
}
result.insert(info.path.clone(), info);
}
Ok(result)
}
}

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@ -1,160 +0,0 @@
use crate::error::Error;
use lazy_static::lazy_static;
pub fn encoded_len(input_len: usize) -> usize {
if input_len == 0 {
0
} else {
(input_len * 8 - 1) / 5 + 1
}
}
pub fn decoded_len(input_len: usize) -> usize {
input_len * 5 / 8
}
static BASE32_CHARS: &[u8; 32] = &b"0123456789abcdfghijklmnpqrsvwxyz";
lazy_static! {
static ref BASE32_CHARS_REVERSE: Box<[u8; 256]> = {
let mut xs = [0xffu8; 256];
for (n, c) in BASE32_CHARS.iter().enumerate() {
xs[*c as usize] = n as u8;
}
Box::new(xs)
};
}
pub fn encode(input: &[u8]) -> String {
let mut buf = vec![0; encoded_len(input.len())];
encode_into(input, &mut buf);
std::str::from_utf8(&buf).unwrap().to_string()
}
pub fn encode_into(input: &[u8], output: &mut [u8]) {
let len = encoded_len(input.len());
assert_eq!(len, output.len());
let mut nr_bits_left: usize = 0;
let mut bits_left: u16 = 0;
let mut pos = len;
for b in input {
bits_left |= (*b as u16) << nr_bits_left;
nr_bits_left += 8;
while nr_bits_left > 5 {
output[pos - 1] = BASE32_CHARS[(bits_left & 0x1f) as usize];
pos -= 1;
bits_left >>= 5;
nr_bits_left -= 5;
}
}
if nr_bits_left > 0 {
output[pos - 1] = BASE32_CHARS[(bits_left & 0x1f) as usize];
pos -= 1;
}
assert_eq!(pos, 0);
}
pub fn decode(input: &str) -> Result<Vec<u8>, crate::Error> {
let mut res = Vec::with_capacity(decoded_len(input.len()));
let mut nr_bits_left: usize = 0;
let mut bits_left: u16 = 0;
for c in input.chars().rev() {
let b = BASE32_CHARS_REVERSE[c as usize];
if b == 0xff {
return Err(Error::BadBase32);
}
bits_left |= (b as u16) << nr_bits_left;
nr_bits_left += 5;
if nr_bits_left >= 8 {
res.push((bits_left & 0xff) as u8);
bits_left >>= 8;
nr_bits_left -= 8;
}
}
if nr_bits_left > 0 && bits_left != 0 {
return Err(Error::BadBase32);
}
Ok(res)
}
#[cfg(test)]
mod tests {
use super::*;
use assert_matches::assert_matches;
use hex;
use proptest::proptest;
#[test]
fn test_encode() {
assert_eq!(encode(&[]), "");
assert_eq!(
encode(&hex::decode("0839703786356bca59b0f4a32987eb2e6de43ae8").unwrap()),
"x0xf8v9fxf3jk8zln1cwlsrmhqvp0f88"
);
assert_eq!(
encode(
&hex::decode("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
.unwrap()
),
"1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s"
);
assert_eq!(
encode(
&hex::decode("ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
.unwrap()
),
"2gs8k559z4rlahfx0y688s49m2vvszylcikrfinm30ly9rak69236nkam5ydvly1ai7xac99vxfc4ii84hawjbk876blyk1jfhkbbyx"
);
}
#[test]
fn test_decode() {
assert_eq!(hex::encode(decode("").unwrap()), "");
assert_eq!(
hex::encode(decode("x0xf8v9fxf3jk8zln1cwlsrmhqvp0f88").unwrap()),
"0839703786356bca59b0f4a32987eb2e6de43ae8"
);
assert_eq!(
hex::encode(decode("1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s").unwrap()),
"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
);
assert_eq!(
hex::encode(decode("2gs8k559z4rlahfx0y688s49m2vvszylcikrfinm30ly9rak69236nkam5ydvly1ai7xac99vxfc4ii84hawjbk876blyk1jfhkbbyx").unwrap()),
"ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"
);
assert_matches!(
decode("xoxf8v9fxf3jk8zln1cwlsrmhqvp0f88"),
Err(Error::BadBase32)
);
assert_matches!(
decode("2b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s"),
Err(Error::BadBase32)
);
assert_matches!(decode("2"), Err(Error::BadBase32));
assert_matches!(decode("2gs"), Err(Error::BadBase32));
assert_matches!(decode("2gs8"), Err(Error::BadBase32));
}
proptest! {
#[test]
fn roundtrip(s: Vec<u8>) {
assert_eq!(s, decode(&encode(&s)).unwrap());
}
}
}

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@ -1 +0,0 @@
pub mod base32;

View file

@ -1,24 +0,0 @@
#if 0
#include "logging.hh"
#include "rust-ffi.hh"
extern "C" std::exception_ptr * make_error(rust::StringSlice s)
{
return new std::exception_ptr(std::make_exception_ptr(nix::Error(std::string(s.ptr, s.size))));
}
extern "C" void destroy_error(std::exception_ptr * ex)
{
free(ex);
}
namespace rust {
std::ostream & operator << (std::ostream & str, const String & s)
{
str << (std::string_view) s;
return str;
}
}
#endif

View file

@ -1,189 +0,0 @@
#pragma once
#if 0
#include "serialise.hh"
#include <string_view>
#include <cstring>
#include <array>
namespace rust {
typedef void (*DropFun)(void *);
/* A Rust value of N bytes. It can be moved but not copied. When it
goes out of scope, the C++ destructor will run the drop
function. */
template<std::size_t N, DropFun drop>
struct Value
{
protected:
std::array<char, N> raw;
~Value()
{
if (!isEvacuated()) {
drop(this);
evacuate();
}
}
// Must not be called directly.
Value()
{ }
Value(Value && other)
: raw(other.raw)
{
other.evacuate();
}
void operator =(Value && other)
{
if (!isEvacuated())
drop(this);
raw = other.raw;
other.evacuate();
}
private:
/* FIXME: optimize these (ideally in such a way that the compiler
can elide most calls to evacuate() / isEvacuated(). */
inline void evacuate()
{
for (auto & i : raw) i = 0;
}
inline bool isEvacuated()
{
for (auto & i : raw)
if (i != 0) return false;
return true;
}
};
/* A Rust vector. */
template<typename T, DropFun drop>
struct Vec : Value<3 * sizeof(void *), drop>
{
inline size_t size() const
{
return ((const size_t *) &this->raw)[2];
}
const T * data() const
{
return ((const T * *) &this->raw)[0];
}
};
/* A Rust slice. */
template<typename T>
struct Slice
{
const T * ptr;
size_t size;
Slice(const T * ptr, size_t size) : ptr(ptr), size(size)
{
assert(ptr);
}
};
struct StringSlice : Slice<char>
{
StringSlice(const std::string & s): Slice(s.data(), s.size()) {}
explicit StringSlice(std::string_view s): Slice(s.data(), s.size()) {}
StringSlice(const char * s): Slice(s, strlen(s)) {}
operator std::string_view() const
{
return std::string_view(ptr, size);
}
};
/* A Rust string. */
struct String;
extern "C" {
void ffi_String_new(StringSlice s, String * out);
void ffi_String_drop(void * s);
}
struct String : Vec<char, ffi_String_drop>
{
String() = delete;
String(std::string_view s)
{
ffi_String_new(StringSlice(s), this);
}
String(const char * s)
: String({s, std::strlen(s)})
{
}
operator std::string_view() const
{
return std::string_view(data(), size());
}
};
std::ostream & operator << (std::ostream & str, const String & s);
/* C++ representation of Rust's Result<T, CppException>. */
template<typename T>
struct Result
{
enum { Ok = 0, Err = 1, Uninit = 2 } tag;
union {
T data;
std::exception_ptr * exc;
};
Result() : tag(Uninit) { }; // FIXME: remove
Result(const Result &) = delete;
Result(Result && other)
: tag(other.tag)
{
other.tag = Uninit;
if (tag == Ok)
data = std::move(other.data);
else if (tag == Err)
exc = other.exc;
}
~Result()
{
if (tag == Ok)
data.~T();
else if (tag == Err)
free(exc);
else if (tag == Uninit)
;
else
abort();
}
/* Rethrow the wrapped exception or return the wrapped value. */
T unwrap()
{
if (tag == Ok) {
tag = Uninit;
return std::move(data);
}
else if (tag == Err)
std::rethrow_exception(*exc);
else
abort();
}
};
}
#endif