nostrdb

an unfairly fast embedded nostr database backed by lmdb
git clone git://jb55.com/nostrdb
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build.rs (4600B)

      1 // build.rs
      2 use cc::Build;
      3 use std::env;
      4 use std::path::PathBuf;
      5 
      6 fn secp256k1_build() {
      7     // Actual build
      8     let mut base_config = cc::Build::new();
      9     base_config
     10         .include("../deps/secp256k1/")
     11         .include("../deps/secp256k1/include")
     12         .include("../deps/secp256k1/src")
     13         .flag_if_supported("-Wno-unused-function") // some ecmult stuff is defined but not used upstream
     14         .flag_if_supported("-Wno-unused-parameter") // patching out printf causes this warning
     15         //.define("SECP256K1_API", Some(""))
     16         .define("ENABLE_MODULE_ECDH", Some("1"))
     17         .define("ENABLE_MODULE_SCHNORRSIG", Some("1"))
     18         .define("ENABLE_MODULE_EXTRAKEYS", Some("1"))
     19         //.define("ENABLE_MODULE_ELLSWIFT", Some("0"))
     20         // upstream sometimes introduces calls to printf, which we cannot compile
     21         // with WASM due to its lack of libc. printf is never necessary and we can
     22         // just #define it away.
     23         .define("printf(...)", Some(""));
     24 
     25     //if cfg!(feature = "lowmemory") {
     26     //    base_config.define("ECMULT_WINDOW_SIZE", Some("4")); // A low-enough value to consume negligible memory
     27     //    base_config.define("ECMULT_GEN_PREC_BITS", Some("2"));
     28     //} else {
     29     //    base_config.define("ECMULT_GEN_PREC_BITS", Some("4"));
     30     //    base_config.define("ECMULT_WINDOW_SIZE", Some("15")); // This is the default in the configure file (`auto`)
     31     //}
     32 
     33     //base_config.define("USE_EXTERNAL_DEFAULT_CALLBACKS", Some("1"));
     34     //#[cfg(feature = "recovery")]
     35     //base_config.define("ENABLE_MODULE_RECOVERY", Some("1"));
     36 
     37     // WASM headers and size/align defines.
     38     if env::var("CARGO_CFG_TARGET_ARCH").unwrap() == "wasm32" {
     39         base_config.include("wasm/wasm-sysroot").file("wasm/wasm.c");
     40     }
     41 
     42     // secp256k1
     43     base_config
     44         .file("../deps/secp256k1/contrib/lax_der_parsing.c")
     45         .file("../deps/secp256k1/src/precomputed_ecmult_gen.c")
     46         .file("../deps/secp256k1/src/precomputed_ecmult.c")
     47         .file("../deps/secp256k1/src/secp256k1.c");
     48 
     49     if base_config.try_compile("libsecp256k1.a").is_err() {
     50         // Some embedded platforms may not have, eg, string.h available, so if the build fails
     51         // simply try again with the wasm sysroot (but without the wasm type sizes) in the hopes
     52         // that it works.
     53         base_config.include("wasm/wasm-sysroot");
     54         base_config.compile("libsecp256k1.a");
     55     }
     56 }
     57 
     58 fn main() {
     59     // Compile the C file
     60     let mut build = Build::new();
     61 
     62     build
     63         .files([
     64             "../nostrdb.c",
     65             "../sha256.c",
     66             "../bech32.c",
     67             "../deps/flatcc/src/runtime/json_parser.c",
     68             "../deps/flatcc/src/runtime/verifier.c",
     69             "../deps/flatcc/src/runtime/builder.c",
     70             "../deps/flatcc/src/runtime/emitter.c",
     71             "../deps/flatcc/src/runtime/refmap.c",
     72             "../deps/lmdb/mdb.c",
     73             "../deps/lmdb/midl.c",
     74         ])
     75         .include("../deps/lmdb")
     76         .include("../deps/flatcc/include")
     77         .include("../deps/secp256k1/include")
     78         // Add other include paths
     79         //.flag("-Wall")
     80         .flag("-Wno-misleading-indentation")
     81         .flag("-Wno-unused-function")
     82         //.flag("-Werror")
     83         //.flag("-g")
     84         .compile("libnostrdb.a");
     85 
     86     secp256k1_build();
     87 
     88     // Re-run the build script if any of the C files or headers change
     89     for file in &[
     90         "../nostrdb.c",
     91         "../sha256.c",
     92         "../bech32.c",
     93         // Add all your C source files here
     94         "../nostrdb.h",
     95         "../sha256.h",
     96         // Add all your header files here
     97     ] {
     98         println!("cargo:rerun-if-changed={}", file);
     99     }
    100 
    101     //println!("cargo:rustc-link-search=native=deps/lmdb");
    102     //println!("cargo:rustc-link-lib=static=lmdb");
    103     //println!("cargo:rustc-link-search=native=deps/secp256k1/.libs");
    104     println!("cargo:rustc-link-lib=secp256k1");
    105 
    106     // Print out the path to the compiled library
    107     let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    108     println!("cargo:rustc-link-search=native={}", out_path.display());
    109     println!("cargo:rustc-link-lib=static=nostrdb");
    110 
    111     // The bindgen::Builder is the main entry point to bindgen, and lets you build up options for
    112     // the resulting bindings.
    113     let bindings = bindgen::Builder::default()
    114         .header("../nostrdb.h")
    115         .generate()
    116         .expect("Unable to generate bindings");
    117 
    118     // Write the bindings to the $OUT_DIR/bindings.rs file.
    119     bindings
    120         .write_to_file("src/bindings.rs")
    121         .expect("Couldn't write bindings!");
    122 }