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https://github.com/NixOS/nix
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Add some Rust code
This commit is contained in:
Eelco Dolstra
parent
abb8ef619b
commit
11da5b2816
10 changed files with 194 additions and 3 deletions
59
nix-rust/Cargo.lock
generated
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59
nix-rust/Cargo.lock
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@ -0,0 +1,59 @@
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[[package]]
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name = "cfg-if"
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version = "0.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "filetime"
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version = "0.2.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "libc"
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version = "0.2.50"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "nix-rust"
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version = "0.1.0"
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dependencies = [
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"libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
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"tar 0.4.22 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "redox_syscall"
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version = "0.1.51"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "tar"
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version = "0.4.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"filetime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
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"xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "xattr"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[metadata]
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"checksum cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "11d43355396e872eefb45ce6342e4374ed7bc2b3a502d1b28e36d6e23c05d1f4"
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"checksum filetime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a2df5c1a8c4be27e7707789dc42ae65976e60b394afd293d1419ab915833e646"
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"checksum libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)" = "aab692d7759f5cd8c859e169db98ae5b52c924add2af5fbbca11d12fefb567c1"
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"checksum redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)" = "423e376fffca3dfa06c9e9790a9ccd282fafb3cc6e6397d01dbf64f9bacc6b85"
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"checksum tar 0.4.22 (registry+https://github.com/rust-lang/crates.io-index)" = "c2167ff53da2a661702b3299f71a91b61b1dffef36b4b2884b1f9c67254c0133"
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"checksum xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "244c3741f4240ef46274860397c7c74e50eb23624996930e484c16679633a54c"
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12
nix-rust/Cargo.toml
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12
nix-rust/Cargo.toml
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[package]
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name = "nix-rust"
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version = "0.1.0"
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authors = ["Eelco Dolstra <edolstra@gmail.com>"]
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[lib]
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name = "nixrust"
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crate-type = ["staticlib"]
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[dependencies]
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tar = "0.4"
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libc = "0.2"
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7
nix-rust/local.mk
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7
nix-rust/local.mk
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libnixrust_PATH := $(d)/target/release/libnixrust.a
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libnixrust_INSTALL_PATH := $(libnixrust_PATH)
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libnixrust_LDFLAGS_USE := -L$(d)/target/release -lnixrust -ldl
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libnixrust_LDFLAGS_USE_INSTALLED := $(libnixrust_LDFLAGS_USE)
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$(d)/target/release/libnixrust.a: $(wildcard $(d)/src/*.rs) $(d)/Cargo.toml
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$(trace-gen) cd nix-rust && RUSTC_BOOTSTRAP=1 cargo build --release && touch target/release/libnixrust.a
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48
nix-rust/src/lib.rs
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48
nix-rust/src/lib.rs
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extern crate libc;
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extern crate tar;
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use std::fs;
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use std::io;
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use std::os::unix::fs::OpenOptionsExt;
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use std::path::Path;
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use tar::Archive;
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#[no_mangle]
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pub extern "C" fn unpack_tarfile(data: &[u8], dest_dir: &str) -> bool {
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// FIXME: handle errors.
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let dest_dir = Path::new(dest_dir);
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let mut tar = Archive::new(data);
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for file in tar.entries().unwrap() {
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let mut file = file.unwrap();
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let dest_file = dest_dir.join(file.header().path().unwrap());
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fs::create_dir_all(dest_file.parent().unwrap()).unwrap();
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match file.header().entry_type() {
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tar::EntryType::Directory => {
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fs::create_dir(dest_file).unwrap();
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}
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tar::EntryType::Regular => {
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let mode = if file.header().mode().unwrap() & libc::S_IXUSR == 0 {
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0o666
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} else {
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0o777
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};
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let mut f = fs::OpenOptions::new()
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.create(true)
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.write(true)
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.mode(mode)
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.open(dest_file)
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.unwrap();
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io::copy(&mut file, &mut f).unwrap();
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}
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t => panic!("Unsupported tar entry type '{:?}'.", t),
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}
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}
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true
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}
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