src/test/run-make-fulldeps/reproducible-build-2/linker.rs

   1 use std::env;
   2 use std::path::Path;
   3 use std::fs::File;
   4 use std::io::{Read, Write};
   5
   6 fn main() {
   7     let mut dst = env::current_exe().unwrap();
   8     dst.pop();
   9     dst.push("linker-arguments1");
  10     if dst.exists() {
  11         dst.pop();
  12         dst.push("linker-arguments2");
  13         assert!(!dst.exists());
  14     }
  15
  16     let mut out = String::new();
  17     for arg in env::args().skip(1) {
  18         let path = Path::new(&arg);
  19         if !path.is_file() {
  20             out.push_str(&arg);
  21             out.push_str("\n");
  22             continue
  23         }
  24
  25         let mut contents = Vec::new();
  26         File::open(path).unwrap().read_to_end(&mut contents).unwrap();
  27
  28         out.push_str(&format!("{}: {}\n", arg, hash(&contents)));
  29     }
  30
  31     File::create(dst).unwrap().write_all(out.as_bytes()).unwrap();
  32 }
  33
  34 // fnv hash for now
  35 fn hash(contents: &[u8]) -> u64 {
  36     let mut hash = 0xcbf29ce484222325;
  37
  38     for byte in contents {
  39         hash = hash ^ (*byte as u64);
  40         hash = hash.wrapping_mul(0x100000001b3);
  41     }
  42
  43     hash
  44 }