1 extern crate cc;
2
3 use std::path::{Path, PathBuf};
4 use std::{env, fs};
5
main()6 fn main() {
7 println!("cargo:rerun-if-env-changed=TREE_SITTER_STATIC_ANALYSIS");
8 if env::var("TREE_SITTER_STATIC_ANALYSIS").is_ok() {
9 if let (Some(clang_path), Some(scan_build_path)) = (which("clang"), which("scan-build")) {
10 let clang_path = clang_path.to_str().unwrap();
11 let scan_build_path = scan_build_path.to_str().unwrap();
12 env::set_var(
13 "CC",
14 &format!(
15 "{} -analyze-headers --use-analyzer={} cc",
16 scan_build_path, clang_path
17 ),
18 );
19 }
20 }
21
22 let mut config = cc::Build::new();
23
24 println!("cargo:rerun-if-env-changed=CARGO_FEATURE_ALLOCATION_TRACKING");
25 if env::var("CARGO_FEATURE_ALLOCATION_TRACKING").is_ok() {
26 config.define("TREE_SITTER_ALLOCATION_TRACKING", "");
27 }
28
29 let src_path = Path::new("src");
30 for entry in fs::read_dir(&src_path).unwrap() {
31 let entry = entry.unwrap();
32 let path = src_path.join(entry.file_name());
33 println!("cargo:rerun-if-changed={}", path.to_str().unwrap());
34 }
35
36 config
37 .flag_if_supported("-std=c99")
38 .flag_if_supported("-Wno-unused-parameter")
39 .include(src_path)
40 .include("include")
41 .file(src_path.join("lib.c"))
42 .compile("tree-sitter");
43 }
44
which(exe_name: impl AsRef<Path>) -> Option<PathBuf>45 fn which(exe_name: impl AsRef<Path>) -> Option<PathBuf> {
46 env::var_os("PATH").and_then(|paths| {
47 env::split_paths(&paths).find_map(|dir| {
48 let full_path = dir.join(&exe_name);
49 if full_path.is_file() {
50 Some(full_path)
51 } else {
52 None
53 }
54 })
55 })
56 }
57