trouble building

[jonathanstrong]

I'm trying to get dalmatinerdb up but having trouble building this proxy. I have very little experience with erlang or the build tools that are used. Here is the rebar3 crashdump I receive:

Error: function_clause
[{relx,format_error,
       [{error,eacces}],
       [{file,"/home/tristan/Devel/rebar3/_build/default/lib/relx/src/relx.erl"},
        {line,220}]},
 {relx,report_error,2,
       [{file,"/home/tristan/Devel/rebar3/_build/default/lib/relx/src/relx.erl"},
        {line,336}]},
 {rebar_relx,do,4,
             [{file,"/home/tristan/Devel/rebar3/_build/default/lib/rebar/src/rebar_relx.erl"},
              {line,38}]},
 {rebar3_cuttlefish_release,do,1,
                            [{file,"/home/jstrong/src/ddb_proxy/_build/default/plugins/rebar3_cuttlefish/src/rebar3_cuttlefish_release.erl"},
                             {line,89}]},
 {rebar_core,do,2,
             [{file,"/home/tristan/Devel/rebar3/_build/default/lib/rebar/src/rebar_core.erl"},
              {line,153}]},
 {rebar3,main,1,
         [{file,"/home/tristan/Devel/rebar3/_build/default/lib/rebar/src/rebar3.erl"},
          {line,66}]},
 {escript,run,2,[{file,"escript.erl"},{line,757}]},
 {escript,start,1,[{file,"escript.erl"},{line,277}]}]

Any help would be greatly appreciated!

[Licenser]

Hi this is related to https://github.com/dalmatinerdb/dalmatinerdb/issues/119 sadly based on a bug in the rebar3 build tool on OSX you can still use the docker compose example to get a version up and running to test on your mac: https://github.com/dalmatinerdb/docker-ddb-compose

[Licenser]

Some testing the following is a workaround:

chmod -R u+w /usr/local/Cellar/erlang/*/lib/erlang/lib/*/ebin/*.app

[jonathanstrong]

my apologies, should have mentioned my system in the initial post: running Ubuntu 16.04. Not sure if the fix would still apply.

[Licenser]

the fix for the moment (as ugly as it is) is to give the user permissions to write the .app files the rebar3 threat has some details on to why. I suspect does apply to ubuntu just on a different path depending on where your erlang is installed :)

[jonathanstrong]

hmm, just found the .app files and ran `sudo chmod u+w -R /usr/lib/erlang/lib//ebin/*.appbut got what looks to be the same error message. I checked all the .app files have-rw-r--r--` permissions. is that right?

[Licenser]

if it's owned by you then yes. if it's not owned by you I suspect it gets a more complicated. The original suggested permissions are 0666 (I think that's rw for everyone) the u+w works as long as you own the files anywyas.

[jonathanstrong]

they are owned by root, not me (jstrong). is it as simple as sudo rebar3 release?

[Licenser]

Sure worth giving a try I guess :)

[jonathanstrong]

gah - yes - that was it. can't believe I spent this much time on this. assumed I was just building it locally, not needing permissions. Thanks!

[Licenser]

It's a bug, it should just work, sadly it's a bug so deep into build tool land that we can't just fix it in the project :)