Modernize doc generation

Makefile

@@ -19,7 +19,7 @@ CLI_ARTIFACT_PATH = _build/escriptize/bin/locus
 .PHONY: all build clean check
 .PHONY: xref hank-dead-code-cleaner elvis-linter dialyzer
 .PHONY: test cover
-.PHONY: shell console doc publish cli
+.PHONY: shell console doc-dry publish cli
 
 .NOTPARALLEL: check cover test
 
@@ -61,11 +61,10 @@ shell:
 
 console: shell
 
-doc: $(REBAR3)
-	./support/scripts/generate_docs.sh
+doc-dry: $(REBAR3)
+	@$(REBAR3) hex publish docs --dry-run
 
 publish: $(REBAR3)
-publish: doc
 	@$(REBAR3) hex publish
 
 cli: $(REBAR3)

rebar.config

@@ -23,6 +23,7 @@
 ]}.
 
 {project_plugins, [
+    {rebar3_ex_doc, "0.2.8"},
     {rebar3_hank, "1.2.2"},
     {rebar3_hex, "7.0.1"},
     {rebar3_lint, "1.0.1"}
@@ -91,14 +92,7 @@
         ]},
         {cover_enabled, true},
         {cover_opts, [verbose]}
-    ]},
-
-    {docs,
-     [{edoc_opts, [{preprocess, true},
-                   {doclet, edoc_doclet_chunks},
-                   {layout, edoc_layout_chunks},
-                   {dir, "_build/default/lib/locus/doc"}]}
-     ]}
+    ]}
 ]}.
 
 %% == Hank ==
@@ -108,3 +102,17 @@
         "test/**"
     ]}
 ]}.
+
+%% == ex_doc +++
+
+{ex_doc, [
+    {source_url, <<"https://github.com/g-andrade/locus">>},
+    {extras, [<<"README.md">>, <<"CHANGELOG.md">>, <<"MIGRATION.md">>, <<"LICENSE">>]},
+    {main, <<"readme">>},
+    {proglang, erlang}
+]}.
+{hex, [
+    {doc, #{
+        provider => ex_doc
+    }}
+]}.