add indent markers

[kyazdani42]

@Akin909 can you review this works as expected for you ? Or tell me if you'd prefer something else.
(add let g:lua_tree_indent_markers = 1 to your init.vim)

fixes #42

[akinsho]

Wow so quick 😍 I'm not by my laptop atm but will have a look in a bit

[akinsho]

@kyazdani42 just tried it out and it looks really cool 👍. One thing I noticed which is pretty minor is that the the indent mark for the parent of a directory changes depending on which sub folder is open rather than maintaining it's indent level. Not sure if that makes sense

Lua tree is on the right. The indent marker for the .config ends once the alacritty folder is open and if I close it then extends to the end again. Also I wonder if it can be highlighted more subtly. Anyway this is already pretty great as it is thanks for looking into it so quickly

[kyazdani42]

ah you are right ! i didn't look at the picture from your issue properly

[kyazdani42]

This should be ok !
You can also change the color by overriding the hl group LuaTreeIndentMarker. By default it will be the same color as the folders.

[akinsho]

Awesome that works perfectly 🚀 thanks so much for adding this 👍