rustdesk/libs/scrap/build.rs

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use std::{
env, fs,
path::{Path, PathBuf},
println,
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};
#[cfg(all(target_os = "linux", feature = "linux-pkg-config"))]
fn link_pkg_config(name: &str) -> Vec<PathBuf> {
// sometimes an override is needed
let pc_name = match name {
"libvpx" => "vpx",
_ => name,
};
let lib = pkg_config::probe_library(pc_name)
.expect(format!(
"unable to find '{pc_name}' development headers with pkg-config (feature linux-pkg-config is enabled).
try installing '{pc_name}-dev' from your system package manager.").as_str());
lib.include_paths
}
#[cfg(not(all(target_os = "linux", feature = "linux-pkg-config")))]
fn link_pkg_config(_name: &str) -> Vec<PathBuf> {
unimplemented!()
}
/// Link vcpkg package.
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fn link_vcpkg(mut path: PathBuf, name: &str) -> PathBuf {
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let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
let mut target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
if target_arch == "x86_64" {
target_arch = "x64".to_owned();
} else if target_arch == "x86" {
target_arch = "x86".to_owned();
} else if target_arch == "loongarch64" {
target_arch = "loongarch64".to_owned();
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} else if target_arch == "aarch64" {
target_arch = "arm64".to_owned();
} else {
target_arch = "arm".to_owned();
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}
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let mut target = if target_os == "macos" {
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if target_arch == "x64" {
"x64-osx".to_owned()
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} else if target_arch == "arm64" {
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"arm64-osx".to_owned()
} else {
format!("{}-{}", target_arch, target_os)
}
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} else if target_os == "windows" {
"x64-windows-static".to_owned()
} else {
format!("{}-{}", target_arch, target_os)
};
if target_arch == "x86" {
target = target.replace("x64", "x86");
}
println!("cargo:info={}", target);
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if let Ok(vcpkg_root) = std::env::var("VCPKG_INSTALLED_ROOT") {
path = vcpkg_root.into();
} else {
path.push("installed");
}
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path.push(target);
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println!(
"{}",
format!(
"cargo:rustc-link-lib=static={}",
name.trim_start_matches("lib")
)
);
println!(
"{}",
format!(
"cargo:rustc-link-search={}",
path.join("lib").to_str().unwrap()
)
);
let include = path.join("include");
println!("{}", format!("cargo:include={}", include.to_str().unwrap()));
include
}
/// Link homebrew package(for Mac M1).
fn link_homebrew_m1(name: &str) -> PathBuf {
let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
let target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
if target_os != "macos" || target_arch != "aarch64" {
panic!("Couldn't find VCPKG_ROOT, also can't fallback to homebrew because it's only for macos aarch64.");
}
let mut path = PathBuf::from("/opt/homebrew/Cellar");
path.push(name);
let entries = if let Ok(dir) = std::fs::read_dir(&path) {
dir
} else {
panic!("Could not find package in {}. Make sure your homebrew and package {} are all installed.", path.to_str().unwrap(),&name);
};
let mut directories = entries
.into_iter()
.filter(|x| x.is_ok())
.map(|x| x.unwrap().path())
.filter(|x| x.is_dir())
.collect::<Vec<_>>();
// Find the newest version.
directories.sort_unstable();
if directories.is_empty() {
panic!(
"There's no installed version of {} in /opt/homebrew/Cellar",
name
);
}
path.push(directories.pop().unwrap());
// Link the library.
println!(
"{}",
format!(
"cargo:rustc-link-lib=static={}",
name.trim_start_matches("lib")
)
);
// Add the library path.
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println!(
"{}",
format!(
"cargo:rustc-link-search={}",
path.join("lib").to_str().unwrap()
)
);
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// Add the include path.
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let include = path.join("include");
println!("{}", format!("cargo:include={}", include.to_str().unwrap()));
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include
}
/// Find package. By default, it will try to find vcpkg first, then homebrew(currently only for Mac M1).
/// If building for linux and feature "linux-pkg-config" is enabled, will try to use pkg-config
/// unless check fails (e.g. NO_PKG_CONFIG_libyuv=1)
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fn find_package(name: &str) -> Vec<PathBuf> {
let no_pkg_config_var_name = format!("NO_PKG_CONFIG_{name}");
println!("cargo:rerun-if-env-changed={no_pkg_config_var_name}");
if cfg!(all(target_os = "linux", feature = "linux-pkg-config"))
&& std::env::var(no_pkg_config_var_name).as_deref() != Ok("1")
{
link_pkg_config(name)
} else if let Ok(vcpkg_root) = std::env::var("VCPKG_ROOT") {
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vec![link_vcpkg(vcpkg_root.into(), name)]
} else {
// Try using homebrew
vec![link_homebrew_m1(name)]
}
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}
fn generate_bindings(
ffi_header: &Path,
include_paths: &[PathBuf],
ffi_rs: &Path,
exact_file: &Path,
regex: &str,
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) {
let mut b = bindgen::builder()
.header(ffi_header.to_str().unwrap())
.allowlist_type(regex)
.allowlist_var(regex)
.allowlist_function(regex)
.rustified_enum(regex)
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.trust_clang_mangling(false)
.layout_tests(false) // breaks 32/64-bit compat
.generate_comments(false); // comments have prefix /*!\
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for dir in include_paths {
b = b.clang_arg(format!("-I{}", dir.display()));
}
b.generate().unwrap().write_to_file(ffi_rs).unwrap();
fs::copy(ffi_rs, exact_file).ok(); // ignore failure
}
fn gen_vcpkg_package(package: &str, ffi_header: &str, generated: &str, regex: &str) {
let includes = find_package(package);
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let src_dir = env::var_os("CARGO_MANIFEST_DIR").unwrap();
let src_dir = Path::new(&src_dir);
let out_dir = env::var_os("OUT_DIR").unwrap();
let out_dir = Path::new(&out_dir);
let ffi_header = src_dir.join("src").join("bindings").join(ffi_header);
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println!("rerun-if-changed={}", ffi_header.display());
for dir in &includes {
println!("rerun-if-changed={}", dir.display());
}
let ffi_rs = out_dir.join(generated);
let exact_file = src_dir.join("generated").join(generated);
generate_bindings(&ffi_header, &includes, &ffi_rs, &exact_file, regex);
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}
// If you have problems installing ffmpeg, you can download $VCPKG_ROOT/installed from ci
// Linux require link in hwcodec
/*
fn ffmpeg() {
// ffmpeg
let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
let target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
let static_libs = vec!["avcodec", "avutil", "avformat"];
static_libs.iter().for_each(|lib| {
find_package(lib);
});
if target_os == "windows" {
println!("cargo:rustc-link-lib=static=libmfx");
}
// os
let dyn_libs: Vec<&str> = if target_os == "windows" {
["User32", "bcrypt", "ole32", "advapi32"].to_vec()
} else if target_os == "linux" {
let mut v = ["va", "va-drm", "va-x11", "vdpau", "X11", "stdc++"].to_vec();
if target_arch == "x86_64" {
v.push("z");
}
v
} else if target_os == "macos" || target_os == "ios" {
["c++", "m"].to_vec()
} else if target_os == "android" {
["z", "m", "android", "atomic"].to_vec()
} else {
panic!("unsupported os");
};
dyn_libs
.iter()
.map(|lib| println!("cargo:rustc-link-lib={}", lib))
.count();
if target_os == "macos" || target_os == "ios" {
println!("cargo:rustc-link-lib=framework=CoreFoundation");
println!("cargo:rustc-link-lib=framework=CoreVideo");
println!("cargo:rustc-link-lib=framework=CoreMedia");
println!("cargo:rustc-link-lib=framework=VideoToolbox");
println!("cargo:rustc-link-lib=framework=AVFoundation");
}
}
*/
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fn main() {
// note: all link symbol names in x86 (32-bit) are prefixed wth "_".
// run "rustup show" to show current default toolchain, if it is stable-x86-pc-windows-msvc,
// please install x64 toolchain by "rustup toolchain install stable-x86_64-pc-windows-msvc",
// then set x64 to default by "rustup default stable-x86_64-pc-windows-msvc"
let target = target_build_utils::TargetInfo::new();
if target.unwrap().target_pointer_width() != "64" {
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// panic!("Only support 64bit system");
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}
env::remove_var("CARGO_CFG_TARGET_FEATURE");
env::set_var("CARGO_CFG_TARGET_FEATURE", "crt-static");
find_package("libyuv");
gen_vcpkg_package("libvpx", "vpx_ffi.h", "vpx_ffi.rs", "^[vV].*");
gen_vcpkg_package("aom", "aom_ffi.h", "aom_ffi.rs", "^(aom|AOM|OBU|AV1).*");
gen_vcpkg_package("libyuv", "yuv_ffi.h", "yuv_ffi.rs", ".*");
// ffmpeg();
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// there is problem with cfg(target_os) in build.rs, so use our workaround
let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
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if target_os == "ios" {
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// nothing
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} else if target_os == "android" {
println!("cargo:rustc-cfg=android");
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} else if cfg!(windows) {
// The first choice is Windows because DXGI is amazing.
println!("cargo:rustc-cfg=dxgi");
} else if cfg!(target_os = "macos") {
// Quartz is second because macOS is the (annoying) exception.
println!("cargo:rustc-cfg=quartz");
} else if cfg!(unix) {
// On UNIX we pray that X11 (with XCB) is available.
println!("cargo:rustc-cfg=x11");
}
}