Lager to 3.9.0 and output better rpc output for nodetool

depends on erlware/relx#855

rebar.config

@@ -29,7 +29,7 @@
 }.
 
 {deps, [
-    {lager, ".*", {git, "https://github.com/erlang-lager/lager.git", {branch, "master"}}},
+    {lager, "3.9.0"},
     {erl_base58, "0.0.1"},
     {base64url, "1.0.1"},
     {libp2p, ".*", {git, "https://github.com/helium/erlang-libp2p.git", {branch, "master"}}},

rebar.lock

@@ -50,10 +50,7 @@
        {ref,"e30b65d32711a4b7033fd4ac9b33b3c1c8be8bed"}},
   1},
  {<<"intercept">>,{pkg,<<"intercept">>,<<"1.0.0">>},2},
- {<<"lager">>,
-  {git,"https://github.com/erlang-lager/lager.git",
-       {ref,"91575d4479c897451edf138c10fa86c3125ec52e"}},
-  0},
+ {<<"lager">>,{pkg,<<"lager">>,<<"3.9.0">>},0},
  {<<"libp2p">>,
   {git,"https://github.com/helium/erlang-libp2p.git",
        {ref,"516382eb09dbc6f46350796a202159fbb916fa26"}},
@@ -103,6 +100,7 @@
  {<<"inert">>, <<"E5C7568C5EF0C6103FEDB1CBDB29F32D701985E3588E1FAC37AEBA96671BA11B">>},
  {<<"inet_cidr">>, <<"4814A5B78B969A5E069B0CECBB102622AB0C459B690053ED94543CD529915A43">>},
  {<<"intercept">>, <<"1F6C725E6FC070720643BD4D97EE53B1209365C80E520E1F5A1ACB36712A7EB5">>},
+ {<<"lager">>, <<"903A7303E3542F000F28F94B5C1B1A958A49F5E84FDAF6DF8549D3596EE5AE3D">>},
  {<<"libp2p_crypto">>, <<"A42341EC65C7A087E1F4D3FA29A618EEEA289B00AFFA65849E1470B8DF77C87D">>},
  {<<"multiaddr">>, <<"978E58E28F6FACAF428C87AF933612B1E2F3F2775F1794EDA5E831A4EACD2984">>},
  {<<"procket">>, <<"1FC0D557ACC0145DD167C566C68F83B183E923016904DFE980534B3C9150E92B">>},

src/cli/blockchain_console.erl

@@ -4,4 +4,22 @@
 
 -spec command([string()]) -> ok.
 command(Cmd) ->
-    clique:run(Cmd).
+    %% this is the contents of clique:run but
+    %% we want to figure out if the command worked
+    %% or not
+    M0 = clique_command:match(Cmd),
+    M1 = clique_parser:parse(M0),
+    M2 = clique_parser:extract_global_flags(M1),
+    M3 = clique_parser:validate(M2),
+    M4 = clique_command:run(M3),
+    clique:print(M4, Cmd),
+    case M4 of
+        usage ->
+            {rpc_error, 1};
+        {error, _} ->
+            {rpc_error, 2};
+        {_Status, ExitCode, _} when ExitCode == 0 ->
+            rpc_ok;
+        {_Status, ExitCode, _} ->
+            {rpc_error, ExitCode}
+    end.