How to debug Hammerspoon scripts?

[krasnovpro]

Will be nice to have debugger like this: https://youtu.be/52SVAMM3V78

[cmsj]

Honestly I think a debugger like that is way beyond our development resources at the moment.

I tend to do my debugging with print statements :)

[krasnovpro]

Add at least a variable watcher.

[franciscolourenco]

+1 for variable watcher. print debugging is painful

[cmsj]

What sort of functionality would you want from a variable watcher?

[franciscolourenco]

The simplest implementation I can think of right now would be a debugger statement which, when executed, would pause execution, and make a window open. This window would show a list of variables available in the current scope and their values.

[cmsj]

Maybe take a look at https://github.com/pkulchenko/MobDebug

[franciscolourenco]

Can it be used with Hammerspoon?

[cmsj]

@aristidesfl I would expect so, but I've never tried it. Any Lua modules should work.

[franciscolourenco]

$ cat ~/.hammerspoon/init.lua
require("mobdebug").start()

$ tree ~/.hammerspoon/
/Users/user/.hammerspoon/
├── init.lua
└── mobdebug.lua

2017-02-20 16:12:48: *** ERROR: ...app/Contents/Resources/extensions/hs/_coresetup/init.lua:449: module 'socket' not found:
	no field package.preload['socket']
	no file '/Users/user/.hammerspoon/socket.lua'
	no file '/Users/user/.hammerspoon/socket/init.lua'
	no file '/usr/local/share/lua/5.3/socket.lua'
	no file '/usr/local/share/lua/5.3/socket/init.lua'
	no file '/usr/local/lib/lua/5.3/socket.lua'
	no file '/usr/local/lib/lua/5.3/socket/init.lua'
	no file './socket.lua'
	no file './socket/init.lua'
	no file '/Applications/Hammerspoon.app/Contents/Resources/extensions/socket.lua'
	no file '/Applications/Hammerspoon.app/Contents/Resources/extensions/socket/init.lua'
	no file '/Users/user/.hammerspoon/socket.so'
	no file '/usr/local/lib/lua/5.3/socket.so'
	no file '/usr/local/lib/lua/5.3/loadall.so'
	no file './socket.so'
	no file '/Applications/Hammerspoon.app/Contents/Resources/extensions/socket.so'
stack traceback:
	[C]: in function 'rawrequire'
	...app/Contents/Resources/extensions/hs/_coresetup/init.lua:449: in function 'require'
	/Users/user/.hammerspoon/mobdebug.lua:102: in main chunk
	[C]: in function 'rawrequire'
	...app/Contents/Resources/extensions/hs/_coresetup/init.lua:449: in function 'require'
	/Users/user/.hammerspoon/init.lua:177: in main chunk
	[C]: in function 'xpcall'
	...app/Contents/Resources/extensions/hs/_coresetup/init.lua:481: in function 'hs._coresetup.setup'
	(...tail calls...)

[franciscolourenco]

Btw, any thought on #1235 ? Can't move forward on that one.

[asmagill]

Can this be closed since #1268 is now showing signs of working?

[cmsj]

This one is closed ;)