Config file executable not resolved correctly if the path contains whitespace

[gouvinb]

Context

• In my environment, XDG_CONFIG_HOME is equal to ~/Library/Application Support.
• The location of the yabairc file is ~/Library/Application Support/yabai/yabairc.

Setting the scene

When yabairc is executable, then when starting the service with the command yabai --start-service, my configuration is not loaded and the error logs show me:

sh: /Users/gouvinb/Library/Application: Permission denied
sh: /Users/gouvinb/Library/Application: Permission denied
sh: /Users/gouvinb/Library/Application: Permission denied

But if yabairc is not executable then my configuration is correctly loaded.

I think the error is here.

But I can't explain why env -c operates like this.

[koekeishiya]

I think the whitespace is supposed to be escaped within the XDG_CONFIG_HOME value. So ~/Library/Application Support should be ~/Library/Application\ Support.

The only way I can think of for yabai to fix it would be to enclose the full path (or partial path tarversal) within ' before forwarding it to env -c, but I don't think that is the correct thing to do. I suppose doing a pre-pass to escape whitespaces would be more acceptable.

If I am wrong and you are aware of some specification for this behaviour feel free to reference it and/or any standardized solution that other software implementing support for XDG_CONFIG_HOME uses.