Using Sync with LFE

[Adam Krupicka]

Hello,

 

I've been trying to get something like Sync set up in my LFE project. First I tried the auto plugin in rebar3, but it doesn't register LFE files as well as apparently is bugged and doesn't work even on pure Erlang projects. So I gave Sync a try, but I keep getting the following error, any idea how to get this working?

=INFO REPORT==== 2-Jul-2017::18:27:22 ===

/home/me/dev/mything-server/src/controller-ssh.lfe:0: Recompiled.

=ERROR REPORT==== 2-Jul-2017::18:27:22 ===

** Generic server sync_scanner terminating 

** Last message in was {'$gen_cast',compare_src_files}

** When Server state == {state,

                            ['protocol-tcp',renderer,'controller-ssh',

                             lfe_codegen,lfe_doc,lfe_lint,lfe_pmod,

                             ssh_connection,lfe_macro_export,lfe_macro_record,

                             lfe_comp,sync_notify,sync_utils,sync_scanner,

                             sync_options,sync,lfe_edlin_expand,entity,

                             lfe_io_write,lfe_io_pretty,lfe_lib,lfe_internal,

                             lfe_macro,lfe_parse,lfe_scan,lfe_io_format,

                             lfe_io,lfe_eval,lfe_env,lfe_shell,lfe_init,

                             erts_dirty_process_code_checker,

                             erts_literal_area_collector,erl_tracer,

                             erts_internal,erlang,erl_prim_loader,prim_zip,

                             zlib,prim_file,prim_inet,prim_eval,init,

                             erts_code_purger,otp_ring0],

                            ["/home/me/dev/mything-server/_build/default/lib/sync/src",

                             "/home/me/dev/mything-server/src"],

                            ["/home/me/dev/mything-server/_build/default/lib/sync/src/sync.erl",

                             "/home/me/dev/mything-server/_build/default/lib/sync/src/sync_notify.erl",

                             "/home/me/dev/mything-server/_build/default/lib/sync/src/sync_options.erl",

                             "/home/me/dev/mything-server/_build/default/lib/sync/src/sync_scanner.erl",

                             "/home/me/dev/mything-server/_build/default/lib/sync/src/sync_utils.erl",

                             "/home/me/dev/mything-server/src/controller-ssh.lfe",

                             "/home/me/dev/mything-server/src/controller-tcp.lfe",

                             "/home/me/dev/mything-server/src/data.lfe",

                             "/home/me/dev/mything-server/src/entity-server.lfe",

                             "/home/me/dev/mything-server/src/entity-state.lfe",

                             "/home/me/dev/mything-server/src/entity-sup.lfe",

                             "/home/me/dev/mything-server/src/entity.lfe",

                             "/home/me/dev/mything-server/src/protocol-tcp.lfe",

                             "/home/me/dev/mything-server/src/renderer.lfe",

                             "/home/me/dev/mything-server/src/server-tcp.lfe",

                             "/home/me/dev/mything-server/src/stalker-app.lfe",

                             "/home/me/dev/mything-server/src/stalker-sup.lfe",

                             "/home/me/dev/mything-server/src/world-server.lfe"],

                            ["/home/me/dev/mything-server/_build/default/lib/sync/src",

                             "include"],

                            [],undefined,[],[],

                            [{discover_modules,

                                 {-576460560875601,

                                  #Ref<0.1286323230.37486593.133009>}},

                             {discover_src_dirs,

                                 {-576460560863423,

                                  #Ref<0.1286323230.37486593.133501>}},

                             {discover_src_files,

                                 {-576460585862364,

                                  #Ref<0.1286323230.37486593.133534>}}],

                            false,false}

** Reason for termination == 

** {{case_clause,{error,[{error,[{"/home/me/dev/mything-server/src/controller-tcp.lfe",

                                  [{30,lfe_lint,

                                    {illegal_pattern,[sock,'entity-pid']}},

                                   {30,lfe_lint,{unbound_symb,'entity-pid'}},

                                   {30,lfe_lint,{unbound_symb,sock}},

                                   {30,lfe_lint,{unbound_symb,sock}},

                                   {30,lfe_lint,{unbound_symb,'entity-pid'}},

                                   {30,lfe_lint,{unbound_symb,sock}},

                                   {30,lfe_lint,

                                    {unbound_symb,'entity-pid'}}]}],

                                []}],

                        [],[]}},

    [{sync_scanner,recompile_src_file,2,

                   [{file,"/home/me/dev/mything-server/_build/default/lib/sync/src/sync_scanner.erl"},

                    {line,547}]},

     {sync_scanner,process_src_file_lastmod,3,

                   [{file,"/home/me/dev/mything-server/_build/default/lib/sync/src/sync_scanner.erl"},

                    {line,431}]},

     {sync_scanner,handle_cast,2,

                   [{file,"/home/me/dev/mything-server/_build/default/lib/sync/src/sync_scanner.erl"},

                    {line,216}]},

     {gen_server,try_dispatch,4,[{file,"gen_server.erl"},{line,616}]},

     {gen_server,handle_msg,6,[{file,"gen_server.erl"},{line,686}]},

     {proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}

[Adam Krupicka]

Okay, apparently Sync doesn't work with rebar3. However I did manage to figure out how to set it up with the rebar3 auto plugin:

(1) N.B. that the plugin has to be installed globally: https://github.com/vans163/rebar3_auto/issues/5

(2) Apply this patch so that the plugin also looks for .lfe files: https://github.com/vans163/rebar3_auto/pull/15

A.K.

[Federico Carrone]

How well does rebar3 auto works for you? It did not work very well for me, I really miss sync.

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