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Add use_system_unicorn feature in rust bindings

This commit is contained in:
Bet4 2021-12-09 23:07:23 +08:00
parent 1923c12315
commit 3e9ae003b7
2 changed files with 37 additions and 6 deletions
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16
bindings/rust/Cargo.toml
View File

@ -24,8 +24,14 @@ bitflags = "1.3"
libc = "0.2" libc = "0.2"
[build-dependencies] [build-dependencies]
build-helper = "0.1" reqwest = { optional = true, version = "0.11", features = ["blocking"] }
reqwest = { version = "0.11", features = ["blocking"] } flate2 = { optional = true, version = "1.0" }
flate2 = "1.0.22" tar = { optional = true, version = "0.4" }
tar = "0.4.37" bytes = { optional = true, version = "1" }
bytes = "1.1.0" pkg-config = { optional = true, version = "0.3" }
[features]
default = ["build_unicorn_cmake"]
use_system_unicorn = ["pkg-config"]
build_unicorn_cmake = ["reqwest", "flate2", "tar", "bytes"]

27
bindings/rust/build.rs
View File

@ -1,10 +1,19 @@
#[cfg(feature = "build_unicorn_cmake")]
use bytes::Buf; use bytes::Buf;
#[cfg(feature = "build_unicorn_cmake")]
use flate2::read::GzDecoder; use flate2::read::GzDecoder;
#[cfg(feature = "use_system_unicorn")]
use pkg_config;
#[cfg(feature = "build_unicorn_cmake")]
use reqwest::header::USER_AGENT; use reqwest::header::USER_AGENT;
#[cfg(feature = "build_unicorn_cmake")]
use std::path::{Path, PathBuf}; use std::path::{Path, PathBuf};
#[cfg(feature = "build_unicorn_cmake")]
use std::{env, process::Command}; use std::{env, process::Command};
#[cfg(feature = "build_unicorn_cmake")]
use tar::Archive; use tar::Archive;
#[cfg(feature = "build_unicorn_cmake")]
fn find_unicorn(unicorn_dir: &Path) -> Option<PathBuf> { fn find_unicorn(unicorn_dir: &Path) -> Option<PathBuf> {
for entry in std::fs::read_dir(unicorn_dir).ok()? { for entry in std::fs::read_dir(unicorn_dir).ok()? {
let entry = entry.unwrap(); let entry = entry.unwrap();
@ -18,11 +27,13 @@ fn find_unicorn(unicorn_dir: &Path) -> Option<PathBuf> {
None None
} }
#[cfg(feature = "build_unicorn_cmake")]
fn out_dir() -> PathBuf { fn out_dir() -> PathBuf {
let out_dir = env::var("OUT_DIR").unwrap(); let out_dir = env::var("OUT_DIR").unwrap();
Path::new(&out_dir).to_path_buf() Path::new(&out_dir).to_path_buf()
} }
#[cfg(feature = "build_unicorn_cmake")]
fn download_unicorn() -> PathBuf { fn download_unicorn() -> PathBuf {
// https://docs.github.com/en/rest/reference/repos#download-a-repository-archive-tar // https://docs.github.com/en/rest/reference/repos#download-a-repository-archive-tar
let pkg_version; let pkg_version;
@ -51,8 +62,9 @@ fn download_unicorn() -> PathBuf {
find_unicorn(&out_dir).unwrap() find_unicorn(&out_dir).unwrap()
} }
#[cfg(feature = "build_unicorn_cmake")]
#[allow(clippy::branches_sharing_code)] #[allow(clippy::branches_sharing_code)]
fn main() { fn build_with_cmake() {
let profile = env::var("PROFILE").unwrap(); let profile = env::var("PROFILE").unwrap();
if let Some(unicorn_dir) = find_unicorn(&out_dir()) { if let Some(unicorn_dir) = find_unicorn(&out_dir()) {
@ -184,3 +196,16 @@ fn main() {
println!("cargo:rerun-if-changed=build.rs"); println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-changed=src"); println!("cargo:rerun-if-changed=src");
} }
fn main() {
if cfg!(feature = "use_system_unicorn") {
#[cfg(feature = "use_system_unicorn")]
pkg_config::Config::new()
.atleast_version("2")
.probe("unicorn")
.expect("Could not find system unicorn2");
} else {
#[cfg(feature = "build_unicorn_cmake")]
build_with_cmake();
}
}