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nickva/remsh.erl

Last active May 23, 2024 17:09
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recon trace return errors only
Raw
remsh.erl
> recon_trace:calls({fabric, design_docs, fun(_) -> exception_trace() end}, 10, [
{formatter, fun
({trace, _, exception_from, MFA, Err}) -> io_lib:format("|~p:~p|~n", [MFA,Err]);
({trace, _, return_from, MFA, {IsOk,_}=Res}) when IsOk =/= ok -> io_lib:format("|~p:~p|n", [MFA,Res]);
(_) -> ""
end}
]).
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nickva commented May 23, 2024

Call with a failure

> ([email protected])75> fabric:design_docs(x).
** exception error: no function clause matching couch_db:name(x) (src/couch_db.erl, line 839)
     in function  fabric:dbname/1 (src/fabric.erl, line 628)
     in call from fabric:design_docs/1 (src/fabric.erl, line 560)

Call with a success

([email protected])76> fabric:design_docs(<<"db">>).
{ok,[]}

Tracer logs failures only:

> |{fabric,design_docs,1}:{error,function_clause}|

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