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Merge remote-tracking branch 'origin/master' into flakes

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This commit is contained in:
Eelco Dolstra 2019-12-20 12:45:58 +01:00
commit c7866733d7
18 changed files with 132 additions and 189 deletions
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1
Makefile.config.in
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@ -18,6 +18,7 @@ SODIUM_LIBS = @SODIUM_LIBS@
LIBLZMA_LIBS = @LIBLZMA_LIBS@
SQLITE3_LIBS = @SQLITE3_LIBS@
LIBBROTLI_LIBS = @LIBBROTLI_LIBS@
LIBARCHIVE_LIBS = @LIBARCHIVE_LIBS@
EDITLINE_LIBS = @EDITLINE_LIBS@
bash = @bash@
bindir = @bindir@

2
configure.ac
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@ -179,6 +179,8 @@ AC_CHECK_LIB([bz2], [BZ2_bzWriteOpen], [true],
[AC_MSG_ERROR([Nix requires libbz2, which is part of bzip2. See https://web.archive.org/web/20180624184756/http://www.bzip.org/.])])
AC_CHECK_HEADERS([bzlib.h], [true],
[AC_MSG_ERROR([Nix requires libbz2, which is part of bzip2. See https://web.archive.org/web/20180624184756/http://www.bzip.org/.])])
# Checks for libarchive
PKG_CHECK_MODULES([LIBARCHIVE], [libarchive >= 3.1.2], [CXXFLAGS="$LIBARCHIVE_CFLAGS $CXXFLAGS"])
# Look for SQLite, a required dependency.
PKG_CHECK_MODULES([SQLITE3], [sqlite3 >= 3.6.19], [CXXFLAGS="$SQLITE3_CFLAGS $CXXFLAGS"])

1
flake.nix
View File

@ -70,6 +70,7 @@
[ curl
bzip2 xz brotli zlib editline
openssl pkgconfig sqlite boehmgc
libarchive
boost
(nlohmann_json.override { multipleHeaders = true; })
rustc cargo

34
nix-rust/Cargo.lock generated
View File

@ -54,17 +54,6 @@ dependencies = [
"bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "filetime"
version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "fnv"
version = "1.0.6"
@ -109,7 +98,6 @@ dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
"proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)",
"tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -319,17 +307,6 @@ dependencies = [
"wait-timeout 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "tar"
version = "0.4.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"filetime 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
"xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "tempfile"
version = "3.1.0"
@ -375,14 +352,6 @@ name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "xattr"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
]
[metadata]
"checksum assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7deb0a829ca7bcfaf5da70b073a8d128619259a7be8216a355e23f00763059e5"
"checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
@ -393,7 +362,6 @@ dependencies = [
"checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
"checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
"checksum filetime 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "1ff6d4dab0aa0c8e6346d46052e93b13a16cf847b54ed357087c35011048cc7d"
"checksum fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
"checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
"checksum getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "e7db7ca94ed4cd01190ceee0d8a8052f08a247aa1b469a7f68c6a3b71afcf407"
@ -423,11 +391,9 @@ dependencies = [
"checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
"checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
"checksum rusty-fork 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3dd93264e10c577503e926bd1430193eeb5d21b059148910082245309b424fae"
"checksum tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)" = "b3196bfbffbba3e57481b6ea32249fbaf590396a52505a2615adbb79d9d826d3"
"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
"checksum wait-timeout 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9f200f5b12eb75f8c1ed65abd4b2db8a6e1b138a20de009dacee265a2498f3f6"
"checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
"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"
"checksum xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "244c3741f4240ef46274860397c7c74e50eb23624996930e484c16679633a54c"

1
nix-rust/Cargo.toml
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@ -9,7 +9,6 @@ name = "nixrust"
crate-type = ["cdylib"]
[dependencies]
tar = "0.4"
libc = "0.2"
#futures-preview = { version = "=0.3.0-alpha.19" }
#hyper = "0.13.0-alpha.4"

20
nix-rust/src/c.rs
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@ -1,22 +1,4 @@
use super::{
error,
foreign::{self},
store::path,
store::StorePath,
util,
};
#[no_mangle]
pub unsafe extern "C" fn unpack_tarfile(
source: foreign::Source,
dest_dir: &str,
out: *mut Result<(), error::CppException>,
) {
out.write(
util::tarfile::unpack_tarfile(source, std::path::Path::new(dest_dir))
.map_err(|err| err.into()),
);
}
use super::{error, store::path, store::StorePath, util};
#[no_mangle]
pub unsafe extern "C" fn ffi_String_new(s: &str, out: *mut String) {

14
nix-rust/src/foreign.rs
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@ -1,14 +0,0 @@
/// A wrapper around Nix's Source class that provides the Read trait.
#[repr(C)]
pub struct Source {
fun: extern "C" fn(this: *mut libc::c_void, data: &mut [u8]) -> usize,
this: *mut libc::c_void,
}
impl std::io::Read for Source {
fn read(&mut self, buf: &mut [u8]) -> std::result::Result<usize, std::io::Error> {
let n = (self.fun)(self.this, buf);
assert!(n <= buf.len());
Ok(n)
}
}

1
nix-rust/src/lib.rs
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@ -12,7 +12,6 @@ extern crate proptest;
#[cfg(not(test))]
mod c;
mod error;
mod foreign;
#[cfg(unused)]
mod nar;
mod store;

1
nix-rust/src/util/mod.rs
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@ -1,2 +1 @@
pub mod base32;
pub mod tarfile;

56
nix-rust/src/util/tarfile.rs
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@ -1,56 +0,0 @@
use crate::{foreign::Source, Error};
use std::fs;
use std::io;
use std::os::unix::fs::OpenOptionsExt;
use std::path::{Component, Path};
use tar::Archive;
pub fn unpack_tarfile(source: Source, dest_dir: &Path) -> Result<(), Error> {
fs::create_dir_all(dest_dir)?;
let mut tar = Archive::new(source);
for file in tar.entries()? {
let mut file = file?;
let path = file.path()?;
for i in path.components() {
if let Component::Prefix(_) | Component::RootDir | Component::ParentDir = i {
return Err(Error::BadTarFileMemberName(
file.path()?.to_str().unwrap().to_string(),
));
}
}
let dest_file = dest_dir.join(path);
fs::create_dir_all(dest_file.parent().unwrap())?;
match file.header().entry_type() {
tar::EntryType::Directory => {
fs::create_dir(dest_file)?;
}
tar::EntryType::Regular => {
let mode = if file.header().mode()? & (libc::S_IXUSR as u32) == 0 {
0o666
} else {
0o777
};
let mut f = fs::OpenOptions::new()
.create(true)
.write(true)
.mode(mode)
.open(dest_file)?;
io::copy(&mut file, &mut f)?;
}
tar::EntryType::Symlink => {
std::os::unix::fs::symlink(file.header().link_name()?.unwrap(), dest_file)?;
}
tar::EntryType::XGlobalHeader | tar::EntryType::XHeader => {}
t => return Err(Error::Misc(format!("unsupported tar entry type '{:?}'", t))),
}
}
Ok(())
}

7
src/libstore/download.cc
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@ -910,12 +910,7 @@ CachedDownloadResult Downloader::downloadCached(
printInfo("unpacking '%s'...", url);
Path tmpDir = createTempDir();
AutoDelete autoDelete(tmpDir, true);
#if 0
unpackTarfile(store->toRealPath(store->printStorePath(*storePath)), tmpDir, std::string(baseNameOf(url)));
#else
// FIXME: this requires GNU tar for decompression.
runProgram("tar", true, {"xf", store->toRealPath(store->printStorePath(*storePath)), "-C", tmpDir});
#endif
unpackTarfile(store->toRealPath(store->printStorePath(*storePath)), tmpDir);
auto members = readDirectory(tmpDir);
if (members.size() != 1)
throw nix::Error("tarball '%s' contains an unexpected number of top-level files", url);

2
src/libutil/local.mk
View File

@ -6,6 +6,6 @@ libutil_DIR := $(d)
libutil_SOURCES := $(wildcard $(d)/*.cc)
libutil_LDFLAGS = $(LIBLZMA_LIBS) -lbz2 -pthread $(OPENSSL_LIBS) $(LIBBROTLI_LIBS) $(BOOST_LDFLAGS) -lboost_context
libutil_LDFLAGS = $(LIBLZMA_LIBS) -lbz2 -pthread $(OPENSSL_LIBS) $(LIBBROTLI_LIBS) $(LIBARCHIVE_LIBS) $(BOOST_LDFLAGS) -lboost_context
libutil_LIBS = libnixrust

11
src/libutil/rust-ffi.cc
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@ -19,15 +19,4 @@ std::ostream & operator << (std::ostream & str, const String & s)
return str;
}
size_t Source::sourceWrapper(void * _this, rust::Slice<uint8_t> data)
{
try {
// FIXME: how to propagate exceptions?
auto n = ((nix::Source *) _this)->read((unsigned char *) data.ptr, data.size);
return n;
} catch (...) {
abort();
}
}
}

12
src/libutil/rust-ffi.hh
View File

@ -131,18 +131,6 @@ struct String : Vec<char, ffi_String_drop>
std::ostream & operator << (std::ostream & str, const String & s);
struct Source
{
size_t (*fun)(void * source_this, rust::Slice<uint8_t> data);
nix::Source * _this;
Source(nix::Source & _this)
: fun(sourceWrapper), _this(&_this)
{}
static size_t sourceWrapper(void * _this, rust::Slice<uint8_t> data);
};
/* C++ representation of Rust's Result<T, CppException>. */
template<typename T>
struct Result

137
src/libutil/tarfile.cc
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@ -1,38 +1,125 @@
#include "rust-ffi.hh"
#include "compression.hh"
#include <archive.h>
#include <archive_entry.h>
extern "C" {
rust::Result<std::tuple<>> *
unpack_tarfile(rust::Source source, rust::StringSlice dest_dir, rust::Result<std::tuple<>> & out);
}
#include "serialise.hh"
namespace nix {
struct TarArchive {
struct archive * archive;
Source * source;
std::vector<unsigned char> buffer;
void check(int err, const char * reason = "failed to extract archive: %s")
{
if (err == ARCHIVE_EOF)
throw EndOfFile("reached end of archive");
else if (err != ARCHIVE_OK)
throw Error(reason, archive_error_string(this->archive));
}
TarArchive(Source & source) : buffer(4096)
{
this->archive = archive_read_new();
this->source = &source;
archive_read_support_filter_all(archive);
archive_read_support_format_all(archive);
check(archive_read_open(archive,
(void *)this,
TarArchive::callback_open,
TarArchive::callback_read,
TarArchive::callback_close),
"failed to open archive: %s");
}
TarArchive(const Path & path)
{
this->archive = archive_read_new();
archive_read_support_filter_all(archive);
archive_read_support_format_all(archive);
check(archive_read_open_filename(archive, path.c_str(), 16384), "failed to open archive: %s");
}
TarArchive(const TarArchive &) = delete;
void close()
{
check(archive_read_close(archive), "failed to close archive: %s");
}
~TarArchive()
{
if (this->archive) archive_read_free(this->archive);
}
private:
static int callback_open(struct archive *, void * self) {
return ARCHIVE_OK;
}
static ssize_t callback_read(struct archive * archive, void * _self, const void * * buffer)
{
auto self = (TarArchive *)_self;
*buffer = self->buffer.data();
try {
return self->source->read(self->buffer.data(), 4096);
} catch (EndOfFile &) {
return 0;
} catch (std::exception & err) {
archive_set_error(archive, EIO, "source threw exception: %s", err.what());
return -1;
}
}
static int callback_close(struct archive *, void * self) {
return ARCHIVE_OK;
}
};
static void extract_archive(TarArchive & archive, const Path & destDir)
{
int flags = ARCHIVE_EXTRACT_FFLAGS
| ARCHIVE_EXTRACT_PERM
| ARCHIVE_EXTRACT_TIME
| ARCHIVE_EXTRACT_SECURE_SYMLINKS
| ARCHIVE_EXTRACT_SECURE_NODOTDOT;
for (;;) {
struct archive_entry * entry;
int r = archive_read_next_header(archive.archive, &entry);
if (r == ARCHIVE_EOF) break;
else if (r == ARCHIVE_WARN)
warn(archive_error_string(archive.archive));
else
archive.check(r);
archive_entry_set_pathname(entry,
(destDir + "/" + archive_entry_pathname(entry)).c_str());
archive.check(archive_read_extract(archive.archive, entry, flags));
}
archive.close();
}
void unpackTarfile(Source & source, const Path & destDir)
{
rust::Source source2(source);
rust::Result<std::tuple<>> res;
unpack_tarfile(source2, destDir, res);
res.unwrap();
auto archive = TarArchive(source);
createDirs(destDir);
extract_archive(archive, destDir);
}
void unpackTarfile(const Path & tarFile, const Path & destDir,
std::optional<std::string> baseName)
void unpackTarfile(const Path & tarFile, const Path & destDir)
{
if (!baseName) baseName = std::string(baseNameOf(tarFile));
auto archive = TarArchive(tarFile);
auto source = sinkToSource([&](Sink & sink) {
// FIXME: look at first few bytes to determine compression type.
auto decompressor =
hasSuffix(*baseName, ".bz2") ? makeDecompressionSink("bzip2", sink) :
hasSuffix(*baseName, ".gz") ? makeDecompressionSink("gzip", sink) :
hasSuffix(*baseName, ".xz") ? makeDecompressionSink("xz", sink) :
makeDecompressionSink("none", sink);
readFile(tarFile, *decompressor);
decompressor->finish();
});
unpackTarfile(*source, destDir);
createDirs(destDir);
extract_archive(archive, destDir);
}
}

3
src/libutil/tarfile.hh
View File

@ -4,7 +4,6 @@ namespace nix {
void unpackTarfile(Source & source, const Path & destDir);
void unpackTarfile(const Path & tarFile, const Path & destDir,
std::optional<std::string> baseName = {});
void unpackTarfile(const Path & tarFile, const Path & destDir);
}

5
src/nix-prefetch-url/nix-prefetch-url.cc
View File

@ -190,10 +190,7 @@ static int _main(int argc, char * * argv)
printInfo("unpacking...");
Path unpacked = (Path) tmpDir + "/unpacked";
createDirs(unpacked);
if (hasSuffix(baseNameOf(uri), ".zip"))
runProgram("unzip", true, {"-qq", tmpFile, "-d", unpacked});
else
unpackTarfile(tmpFile, unpacked, std::string(baseNameOf(uri)));
unpackTarfile(tmpFile, unpacked);
/* If the archive unpacks to a single file/directory, then use
that as the top-level. */

13
src/nix/make-content-addressable.cc
View File

@ -1,10 +1,12 @@
#include "command.hh"
#include "store-api.hh"
#include "references.hh"
#include "common-args.hh"
#include "json.hh"
using namespace nix;
struct CmdMakeContentAddressable : StorePathsCommand
struct CmdMakeContentAddressable : StorePathsCommand, MixJSON
{
CmdMakeContentAddressable()
{
@ -37,6 +39,9 @@ struct CmdMakeContentAddressable : StorePathsCommand
std::map<StorePath, StorePath> remappings;
auto jsonRoot = json ? std::make_unique<JSONObject>(std::cout) : nullptr;
auto jsonRewrites = json ? std::make_unique<JSONObject>(jsonRoot->object("rewrites")) : nullptr;
for (auto & path : paths) {
auto pathS = store->printStorePath(path);
auto oldInfo = store->queryPathInfo(path);
@ -76,7 +81,8 @@ struct CmdMakeContentAddressable : StorePathsCommand
info.narSize = sink.s->size();
info.ca = makeFixedOutputCA(true, info.narHash);
printError("rewrote '%s' to '%s'", pathS, store->printStorePath(info.path));
if (!json)
printError("rewrote '%s' to '%s'", pathS, store->printStorePath(info.path));
auto source = sinkToSource([&](Sink & nextSink) {
RewritingSink rsink2(oldHashPart, storePathToHash(store->printStorePath(info.path)), nextSink);
@ -86,6 +92,9 @@ struct CmdMakeContentAddressable : StorePathsCommand
store->addToStore(info, *source);
if (json)
jsonRewrites->attr(store->printStorePath(path), store->printStorePath(info.path));
remappings.insert_or_assign(std::move(path), std::move(info.path));
}
}