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Update python_util.rs

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This commit is contained in:
Shunsuke Shibayama 2022-08-11 12:28:28 +09:00
parent a5a405b918
commit 3fe79a7fab
1 changed files with 1 additions and 3 deletions
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4
src/erg_common/python_util.rs
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@ -18,20 +18,18 @@ pub fn which_python() -> String {
if res == "" {
panic!("python not found");
}
dbg!(&res);
res
}
pub fn detect_magic_number() -> u32 {
let command = if cfg!(windows) { "cmd" } else { "sh" };
let arg = if cfg!(windows) { "/C" } else { "-c" };
let python_command = format!("{} -c \"import importlib.util as util;print(util.MAGIC_NUMBER.hex())\"", which_python());
let python_command = format!("\"{} -c 'import importlib.util as util;print(util.MAGIC_NUMBER.hex())'\"", which_python());
let out = Command::new(command)
.arg(arg)
.arg(python_command)
.output()
.expect("cannot get the magic number from python");
dbg!(&out);
let s_hex_magic_num = String::from_utf8(out.stdout).unwrap();
let first_byte = u8::from_str_radix(&s_hex_magic_num[0..=1], 16).unwrap();
let second_byte = u8::from_str_radix(&s_hex_magic_num[2..=3], 16).unwrap();