Support for sketch-local libraries

[lmihalkovic]

Having run into the issue myself, I noticed that a number of people were asking about libraries inside a sketch project. This is the result of a couple of local changes to the latest IDE.

Sketches can have a local "libraries" sub-folder with libraries. The outline view displays them in a list. The source files for local libraries can be edited. When selecting a file from a library, all the tabs of the main editor are replaced with equivalent tabs for each of the library's file (doing it this way makes it possible to reuse all the existing Editor logic with very minimal changes).

Would there be any interest for folding this into the release?

[shiftleftplusone]

excellent work, highly appreciated !
+1
(y)

[lmihalkovic]

For the time being I implemented my own builder as I was wasting too much time on arduino-builder (go is a no-go ;-) ). On the bright side, switching between the 3 builders I have is a config option.
What I really want to look more closely at is the user configurable library-priority scheme I described in #4064 and #4065.

[ffissore]

Duplicate of #314. See #314 (comment)