dynamics-py 0.0.1

An experimental implementation of Rigid Body Dynamics algorithms.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

use std::process::Command;

pub fn main() {
    // Skip this build script when building documentation on docs.rs or when in CI
    if std::env::var("DOCS_RS").is_ok()
        || std::env::var("CI").is_ok()
        || std::env::var("GITHUB_ACTIONS").is_ok()
    {
        return;
    }

    // Get LIBDIR
    let python_libdir = {
        let output = Command::new("python")
            .arg("-c")
            .arg("from distutils import sysconfig; print(sysconfig.get_config_var('LIBDIR'))")
            .output()
            .expect("Failed to get LIBDIR");
        if !output.status.success() {
            panic!("Failed to get LIBDIR");
        }
        String::from_utf8_lossy(&output.stdout).trim().to_string()
    };

    // Get LIBRARY (e.g., python3.11)
    let python_lib = {
        let output = Command::new("python")
            .arg("-c")
            .arg("from distutils import sysconfig; print(sysconfig.get_config_var('LDLIBRARY'))")
            .output()
            .expect("Failed to get LDLIBRARY");
        if !output.status.success() {
            panic!("Failed to get LDLIBRARY");
        }
        String::from_utf8_lossy(&output.stdout).trim().to_string()
    };

    // Remove 'lib' prefix and '.dylib' or '.a' suffix to get the correct name for rustc-link-lib
    let libname = python_lib
        .strip_prefix("lib")
        .unwrap_or(&python_lib)
        .trim_end_matches(".dylib")
        .trim_end_matches(".a");

    println!("cargo:rustc-link-search=native={python_libdir}");
    println!("cargo:rustc-link-lib=dylib={libname}");
    println!("cargo:rustc-link-arg=-Wl,-rpath,{python_libdir}");
}