Upgrade to Rebar3, additions to publish to Hex.pm

Uses rebar3 as the build tool, but with a rebar.config.script for
rebar2 backwards-compatibility.

A few bits filled in on the .app.src file for Hex.pm publishing.

Author: waisbrot

.gitignore

@@ -5,3 +5,6 @@ src/eini_lexer.erl
 ebin/*.app
 .eunit
 deps
+/_build
+/TEST-*.xml
+.rebar

rebar.config

@@ -1,3 +1,4 @@
+%% -*- mode: erlang; -*-
 {erl_opts, [warnings_as_errors,
             warn_export_all,
             warn_unused_import
@@ -9,13 +10,6 @@
 
 {clean_files, [".eunit/*", "ebin/*.beam"]}.
 
-{eunit_opts, [{report,{eunit_surefire,[{dir,"."}]}}]}.
-
-{cover_enabled, true}.
-
-{plugins, [rebar_covertool]}.
-{covertool_eunit, ".eunit/eunit.coverage.xml"}.
-
 {edoc_opts, [{dialyzer_specs, all},
              {report_missing_type, true},
              {report_type_mismatch, true},
@@ -26,9 +20,17 @@
 
 {deps,
   [
-   {proper,
-    ".*", {git, "git://github.com/manopapad/proper.git", {branch, "master"}}},
-
-   {covertool,
-    ".*", {git, "https://github.com/idubrov/covertool.git", {branch, "master"}}}
   ]}.
+
+{profiles, [
+            {test, [
+                    {eunit_opts, [{report,{eunit_surefire,[{dir,"."}]}}]}
+                   ,{cover_enabled, true}
+                   ,{plugins, [rebar_covertool]}
+                   ,{covertool_eunit, ".eunit/eunit.coverage.xml"}
+                   ,{deps, [
+                            {proper, {git, "https://github.com/manopapad/proper.git", {ref, "v1.2"}}},
+                            {covertool, {git, "https://github.com/idubrov/covertool.git", {branch, "master"}}}
+                           ]}
+                   ]}
+           ]}.

rebar.config.script

@@ -0,0 +1,31 @@
+%% -*- mode: erlang; -*-
+case erlang:function_exported(rebar3, main, 1) of
+    true ->
+        %% rebar3
+        CONFIG;
+    false ->
+        %% rebar 2.x or older
+        %% rebuild deps
+        Rebar3Deps = proplists:get_value(deps, CONFIG),
+        Rebar3TestProf = proplists:get_value(test, proplists:get_value(profiles, CONFIG)),
+        {value, {deps, Rebar3TestDeps}, Rebar3TestProf2} = lists:keytake(deps, 1, Rebar3TestProf),
+
+        %% whenever adding a new Hex package dependency, this fun should be
+        %% updated
+        HexToRepo = fun(proper) -> "https://github.com/manopapad/proper.git";
+                       (covertool) -> "https://github.com/idubrov/covertool.git"
+                    end,
+
+        ConvertDep =
+            fun({DepName, {git, Repo, {ref, Tag}}}) ->
+                    {DepName, ".*", {git, Repo, {tag, Tag}}};
+               ({DepName, {git, Repo, {branch, Branch}}}) ->
+                    {DepName, ".*", {git, Repo, {branch, Branch}}};
+               ({HexDepName, HexDepVersion}) ->
+                    {HexDepName, ".*", {git, HexToRepo(HexDepName), {tag, HexDepVersion}}}
+            end,
+
+        Rebar2Deps = [ ConvertDep(Dep) || Dep <- Rebar3Deps ++ Rebar3TestDeps ],
+
+        lists:keystore(deps, 1, CONFIG, {deps, Rebar2Deps}) ++ Rebar3TestProf2
+end.

rebar.lock

@@ -0,0 +1 @@
+[].

src/eini.app.src

@@ -1,8 +1,10 @@
 {application, eini, [
     {description, "An Erlang INI parser"},
-    {vsn, "1.2.1"},
+    {vsn, git},
     {applications, [kernel, stdlib]},
     {modules, []},
     {registered, []},
-    {mod, {eini_app, []}}
+    {mod, {eini_app, []}},
+    {licenses, ["Apache 2.0"]},
+    {links, [{"Github", "https://github.com/erlcloud/eini"}]}
 ]}.