cdylib: Clap not accepting arguments on Ubuntu (still works on Windows10)

[caesarchad]

codes in cdlylib is an sample to test cross calling of rust/go

System information

bus version: pre mainnet launch
OS & Version:
Windows 10 /Ubuntu 18.04
Commit hash :09126b14cd401e3e07053a3a97f8facc90ec8112
hardware :

Expected behaviour

run main -xiudre, should print

Hello Hello Dummy!
This is a simple CLI created by Clap
error: Found argument '-s' which wasn't expected, or isn't valid in this context

USAGE:
    main.exe [OPTIONS]

For more information try --help

Actual behaviour

on Windows10 works,
on Ubuntu 18.04, print nothing

Steps to reproduce the behaviour

cd cdylib

python build.py

cd lib

main -xurhfe

Backtrace

[backtrace]

---

title: 'cdylib: Clap not accepting argument on Ubuntu (still works on Windows10)'
labels: bug
assignees: caesarchad,ben

[caesarchad]

need to investigate reason not working on ubuntu 18.04?

possible workaround:

• use urfave cli to parse the argument, then send the parameters to rust code

• use another cli parser to replace Clap.

• tweek the env and go build (possible different go compiler)

[caesarchad]

possible workaround:

created a new branch fixissue85

1 - modify sources accept argument from go side.
2 - string passed to rust code like

#[no_mangle]
pub extern "C" fn hello(parm1: *const libc::c_char, parm2: *const libc::c_char) {
    let buf_parm1 = unsafe { CStr::from_ptr(parm1).to_bytes() };
    let str_parm1 = String::from_utf8(buf_parm1.to_vec()).unwrap();
    if !str_parm1.is_empty(){
      //pass the value from str_parm1}else{
      //pass the default value}
}

3 - modify c header file

void void hello(char *parm1, char *parm2);

4 - modfiy go file

func AGoFunction(parm1 string, parm2 string ){
cStr_1 := C.CString(parm1)
cStr_2 := C.CString(parm2)
C.hello(cStr_1,cStr_2)

}

[caesarchad]

possible workaround

1 - replace gccgo/gc with llgo
building in progress...
2 - use gccgo

[caesarchad]

as for commit adc878c,
this issue has been fixed: implementing urfave to accept arguments

[caesarchad]

Close