Put a library inside a sketch folder

[grafalex82]

My sketch depends on a slightly modified library. I do not want to install this library to the system as other projects may not be good with such changes.

What is the way to put library inside the sketch folder? I tried different options found on the Internet:

• sketchdir\Libs\Mylib\Mylib.cpp
• sketchdir\libraries\Mylib\Mylib.cpp
• sketchdir\libraries\Mylib\src\Mylib.cpp
• sketchdir\src\libraries\Mylib\src\Mylib.cpp
  .. and various mixes of approaches above.

How does arduino-cli process local libraries?

[per1234]

arduino-cli does recursive compilation of the contents of the src subfolder of the sketch. So you can bundle libraries under that folder:

Sketch
|_Sketch.ino
|_src
   |_MyLib
      |_src
         |_MyLib.h

Then the #include directive in Sketch.ino would look like this:

#include "src/MyLib/src/MyLib.h"

As for support for the standard Arduino library installation style in a subfolder of the sketch, we have a previous request: #32