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Merge pull request #156 from blackbeam/optional-bindgen
Make `bindgen` an optional dependency
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // Copyright (c) 2025 Anatoly Ikorsky | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 | ||
| // <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT | ||
| // license <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. All files in the project carrying such notice may not be copied, | ||
| // modified, or distributed except according to those terms. | ||
|
|
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| #![cfg(all(feature = "test", unix))] | ||
|
|
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| use bindgen::builder; | ||
| use cmake::Config; | ||
| use subprocess::Exec; | ||
|
|
||
| use std::{ | ||
| env, | ||
| fs::{copy, create_dir_all}, | ||
| path::{Path, PathBuf}, | ||
| }; | ||
|
|
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| const MYSQL_DIR: &str = "mysql-8.0.35"; | ||
|
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| const LIBSTRINGS: &str = "libstrings.a"; | ||
| const LIBWRAPPER: &str = "libwrapper.a"; | ||
|
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| /// Returns mysql source path. | ||
| fn download_mysql(out_dir: &Path) { | ||
| const URL: &str = "https://downloads.mysql.com/archives/get/p/23/file/mysql-8.0.35.tar.gz"; | ||
| { | ||
| Exec::cmd("curl").arg("-s").arg("-L").arg(URL) | ||
| | Exec::cmd("tar").arg("-xz").arg("-C").arg(out_dir) | ||
| } | ||
| .join() | ||
| .unwrap(); | ||
| } | ||
|
|
||
| fn make_libstrings(mysql_src: &Path, libdir: &Path, out_dir: &Path) { | ||
| println!("cargo:warning=Building libstrings.a"); | ||
| let dst = Config::new(mysql_src) | ||
| .define("FORCE_INSOURCE_BUILD", "1") | ||
| .define("DOWNLOAD_BOOST", "1") | ||
| .define("WITH_BOOST", out_dir) | ||
| .build_target("strings") | ||
| .build(); | ||
|
|
||
| copy( | ||
| dst.join("build") | ||
| .join("archive_output_directory") | ||
| .join(LIBSTRINGS), | ||
| Path::new(libdir).join(LIBSTRINGS), | ||
| ) | ||
| .unwrap(); | ||
| } | ||
|
|
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| fn make_libwrapper(mysql_src: &Path, libdir: &Path, out_dir: &Path) { | ||
| println!("cargo:warning=Building libwrapper.a"); | ||
| cc::Build::new() | ||
| .file("wrapper.cc") | ||
| .cpp(true) | ||
| .include(out_dir.join("build").join("include")) | ||
| .include(mysql_src.join("include")) | ||
| .flag("-std=c++14") | ||
| .cargo_metadata(false) | ||
| .compile("wrapper"); | ||
| copy(out_dir.join(LIBWRAPPER), Path::new(libdir).join(LIBWRAPPER)).unwrap(); | ||
| } | ||
|
|
||
| #[allow(dead_code)] | ||
| fn gen_bindings(mysql_src: &Path, out_dir: &Path) { | ||
| let builder = builder() | ||
| .header("wrapper.hh") | ||
| .clang_arg(format!( | ||
| "-I{}", | ||
| out_dir.join("build").join("include").display() | ||
| )) | ||
| .clang_arg(format!("-I{}", mysql_src.join("include").display())) | ||
| .clang_arg("-std=c++14") | ||
| .clang_arg("-stdlib=libc++") | ||
| .allowlist_recursively(true) | ||
| .allowlist_type("decimal_t") | ||
| .allowlist_function("c_string2decimal") | ||
| .allowlist_function("c_decimal2string") | ||
| .allowlist_function("c_decimal2bin") | ||
| .allowlist_function("c_bin2decimal") | ||
| .allowlist_function("c_decimal_bin_size") | ||
| .derive_debug(false) | ||
| .use_core() | ||
| .generate_comments(false); | ||
| let bindings = builder | ||
| .generate() | ||
| .expect("unable to generate bindings for libstrings"); | ||
| bindings | ||
| .write_to_file( | ||
| Path::new("src") | ||
| .join("binlog") | ||
| .join("decimal") | ||
| .join("test") | ||
| .join("libstrings_bindings.rs"), | ||
| ) | ||
| .expect("Couldn't write bindings!"); | ||
| } | ||
|
|
||
| pub fn build_test_libs() { | ||
| let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap()); | ||
| let mysql_src = out_dir.join(MYSQL_DIR); | ||
| let libdir = Path::new("lib") | ||
| .join(Path::new(&env::var("CARGO_CFG_TARGET_OS").unwrap())) | ||
| .join(env::var("CARGO_CFG_TARGET_ARCH").unwrap()); | ||
|
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| create_dir_all(&libdir).unwrap(); | ||
|
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| if !libdir.join(LIBSTRINGS).exists() || !libdir.join(LIBWRAPPER).exists() { | ||
| if !mysql_src.exists() { | ||
| println!("cargo:warning=Downloading MySql source distribution"); | ||
| download_mysql(&out_dir); | ||
| } | ||
| make_libstrings(&mysql_src, &libdir, &out_dir); | ||
| make_libwrapper(&mysql_src, &libdir, &out_dir); | ||
| // uncomment if mysql-server version bumped | ||
| // gen_bindings(&mysql_src, &out_dir); | ||
| } | ||
|
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| println!("cargo:rustc-link-search=native={}", libdir.display()); | ||
| println!("cargo:rustc-link-lib=wrapper"); | ||
| println!("cargo:rustc-link-lib=strings"); | ||
| if cfg!(target_os = "macos") { | ||
| println!("cargo:rustc-link-lib=c++"); | ||
| } | ||
| } |