added ~ support and error handling

[jothi-prasath]

Description

This PR adds ~ support and error handling

Changes Made

• Added support for handling ~ . eg., cue path ~/Music
• Error handling when the given path is not exist

[ravachol]

Would be better to have this inside the saveSettings function so that the main function remains small and tidy.

[jothi-prasath]

i didnt get it

[ravachol]

to move your error handling inside the saveSettings function, so that it doesn't clutter main().

[jothi-prasath]

so the saveSettings function is located in settings.h file, right?

[ravachol]

Yes

[ravachol]

I'm going to rewrite that later to allow for key/value pairs but could use that error checking anyway.

[jothi-prasath]

this work c97b1fb

[jothi-prasath]

Yes

now only i see this i created a function inside the cue.c

[ravachol]

I would prefer if the main function was just calls to other functions and no code. so put everything in saveSettings please. Btw, thanks for helping out, @jothi-prasath.

[ravachol]

Best would be to put expandPath in dir.c and #include "dir.h" in settings.h. Then call expandPath from within the saveSettings function, instead of doing it in main().

[jothi-prasath]

Thanks! However, I must admit that I currently have limited knowledge and experience with header files and c. While I am eager to learn and improve my skills, I might require some guidance or assistance to correctly implement the changes you proposed. I would be grateful if you or other experienced contributors could provide some direction or collaborate with me on this matter.

[ravachol]

Sure, no problem. I'll merge your commit and then do the required changes. But not today.

[ravachol]

The way header files work is they contain the signature of the functions. so the settings.h should contain the line:

void expandPath(const char *inputPath, char *expandedPath);

Like that, with a semicolon at the end. When that is done any file that contains #include <settings.h> can call expandPath, and it will execute the function in <settings.c> provided you put the expandPath function there.

[ravachol]

I had to add some stuff to expandPath.