Crash :-(

[VanessaE]

Running Minetest 5.2.0-release

2020-04-06 01:15:19: WARNING[Main]: Undeclared global variable "file_exists" accessed at ...st/worlds/MTZ_World/worldmods/travelpoints/functions.lua:635
2020-04-06 01:15:19: ACTION[Main]: Server: Shutting down
2020-04-06 01:15:19: ERROR[Main]: ModError: Failed to load and run script from /home/minetest/.minetest/worlds/MTZ_World/worldmods/travelpoints/init.lua:
2020-04-06 01:15:19: ERROR[Main]: ...st/worlds/MTZ_World/worldmods/travelpoints/functions.lua:635: attempt to call global 'file_exists' (a nil value)
2020-04-06 01:15:19: ERROR[Main]: stack traceback:
2020-04-06 01:15:19: ERROR[Main]: 	...st/worlds/MTZ_World/worldmods/travelpoints/functions.lua:635: in function 'get_world_restrictions'
2020-04-06 01:15:19: ERROR[Main]: 	...inetest/worlds/MTZ_World/worldmods/travelpoints/init.lua:105: in main chunk

Mod security is enabled.

[heavygale]

The global function file_exists got removed in minetest/minetest#9451, because apparently "it's not used anywhere". Maybe we should add it to functions.lua - I did it manually on my server and it's working fine.

function file_exists(filename)
        local f = io.open(filename, "r")
        if f == nil then
                return false
        else
                f:close()
                return true
        end
end

https://github.com/minetest/minetest/pull/9451/files#diff-a09c7fe45339eba9cdf21f4b9c25b146L205-L213

[sbrl]

I'm getting this crash too:

2020-04-17 01:59:10: ACTION[Main]: Server: Shutting down
2020-04-17 01:59:10: ERROR[Main]: ModError: Failed to load and run script from /srv/minetest-server/worldmods/travelpoints/init.lua:
2020-04-17 01:59:10: ERROR[Main]: /srv/minetest-server/worldmods/travelpoints/init.lua:75: attempt to call field 'execute' (a nil value)
2020-04-17 01:59:10: ERROR[Main]: stack traceback:
2020-04-17 01:59:10: ERROR[Main]: 	/srv/minetest-server/worldmods/travelpoints/init.lua:75: in main chunk

[zacaintmyname]

Getting the same error! :(

[sbrl]

@zacaintmyname Try updating? My PR that got merged should fix this error.

Come to think of it, this issue can probably be closed.