Get executable path for -useexedir

[JeodC]

Pull Request Type

• [ ] GitHub Workflow changes
• [ ] Documentation or Wiki changes
• [ ] Build and Dependency changes
• [x] Runtime changes
  • [ ] Render changes
  • [ ] Audio changes
  • [ ] Input changes
  • [ ] Network changes
  • [x] Other changes

Description

Actually retrieve the executable directory from a relative path so -useexedir functions. This was tested in windows where the realpath was S:\Descent 3\Descent3.exe and from a terminal in S:\ ran start ./Descent 3/Descent3.exe" --useexedir. Verified working.

Related Issues

Resolves #322 if Linux/MacOS are also functional. Needs testing.

[JeodC]

@Jayman2000 Can you try this and let me know if it works?

[Lgt2x]

Merged without approval

[JeodC]

Merged without approval

@jcoby Approved in comments. https://github.com/DescentDevelopers/Descent3/pull/372#discussion_r1606967495

[Jayman2000]

Unfortunately, it looks like the final version of this PR introduced a new indentation mistake:

    if (!ddio_GetBinaryPath(exec_path, sizeof(exec_path))) {
    Error("Failed to get executable path\n");
    } else {

[JeodC]

Unfortunately, it looks like the final version of this PR introduced a new indentation mistake:

    if (!ddio_GetBinaryPath(exec_path, sizeof(exec_path))) {

    Error("Failed to get executable path\n");

    } else {

Dang it, missed one! I'll get it in a second pass the next time I touch init.cpp. Good catch.