rebar3: rebar3 ic setup_eunit plugin

Create a rebar3 ic setup_eunit plugin to keep the same functionality
as the previous one. Since we need to use `setup_eunit.template`, so
move it to `plugins/ic/priv` folder.

Commands:
`rebar3 help ic`, `rebar3 help ic setup_eunit`,
`rebar3 ic`, `rebar3 ic setup_eunit [-f]`, `rebar3 ic setup_eunit -f`,
and `make setup-eunit`

.gitignore

@@ -132,6 +132,7 @@ test/javascript/junit.xml
 /apps/junit_formatter/
 
 .idea
-*.iml
 _build
+*.iml
 *.lock
+*.crashdump

Makefile

@@ -171,7 +171,7 @@ eunit: export ERL_AFLAGS = -config $(shell pwd)/rel/files/eunit.config
 eunit: export COUCHDB_QUERY_SERVER_JAVASCRIPT = $(shell pwd)/bin/couchjs $(shell pwd)/share/server/main.js
 eunit: export COUCHDB_TEST_ADMIN_PARTY_OVERRIDE=1
 eunit: couch
-	@COUCHDB_VERSION=$(COUCHDB_VERSION) COUCHDB_GIT_SHA=$(COUCHDB_GIT_SHA) $(REBAR) setup_eunit 2> /dev/null
+	@COUCHDB_VERSION=$(COUCHDB_VERSION) COUCHDB_GIT_SHA=$(COUCHDB_GIT_SHA) $(REBAR3) ic setup_eunit 2> /dev/null
 	@for dir in $(subdirs); do \
             COUCHDB_VERSION=$(COUCHDB_VERSION) COUCHDB_GIT_SHA=$(COUCHDB_GIT_SHA) $(REBAR) -r eunit $(EUNIT_OPTS) apps=$$dir || exit 1; \
         done
@@ -191,7 +191,7 @@ exunit: couch elixir-init setup-eunit elixir-check-formatted elixir-credo
 setup-eunit: export BUILDDIR = $(shell pwd)
 setup-eunit: export ERL_AFLAGS = -config $(shell pwd)/rel/files/eunit.config
 setup-eunit:
-	@$(REBAR) setup_eunit 2> /dev/null
+	@$(REBAR3) ic setup_eunit 2> /dev/null
 
 just-eunit: export BUILDDIR = $(shell pwd)
 just-eunit: export ERL_AFLAGS = -config $(shell pwd)/rel/files/eunit.config
@@ -202,7 +202,7 @@ just-eunit:
 soak-eunit: export BUILDDIR = $(shell pwd)
 soak-eunit: export ERL_AFLAGS = -config $(shell pwd)/rel/files/eunit.config
 soak-eunit: couch
-	@$(REBAR) setup_eunit 2> /dev/null
+	@$(REBAR3) ic setup_eunit 2> /dev/null
 	while [ $$? -eq 0 ] ; do $(REBAR) -r eunit $(EUNIT_OPTS) ; done
 
 erlfmt-check:
@@ -222,15 +222,15 @@ python-black: .venv/bin/black
 	@python3 -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
 		LC_ALL=C.UTF-8 LANG=C.UTF-8 .venv/bin/black --check \
 		--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|apps/erlfmt|apps/jiffy|apps/rebar/pr2relnotes.py|apps/fauxton" \
-		build-aux/*.py dev/run dev/format_*.py apps/mango/test/*.py apps/docs/src/conf.py apps/docs/ext/*.py .
+		build-aux/*.py dev/run dev/format_*.py apps/mango/test/*.py _build/default/lib/docs/src/conf.py _build/default/lib/docs/ext/*.py .
 
 python-black-update: .venv/bin/black
 	@python3 -c "import sys; exit(1 if sys.version_info < (3,6) else 0)" || \
 	       echo "Python formatter not supported on Python < 3.6; check results on a newer platform"
 	@python3 -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
 		LC_ALL=C.UTF-8 LANG=C.UTF-8 .venv/bin/black \
 		--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|apps/rebar/pr2relnotes.py|apps/fauxton" \
-		build-aux/*.py dev/run apps/mango/test/*.py apps/docs/src/conf.py apps/docs/ext/*.py .
+		build-aux/*.py dev/run apps/mango/test/*.py _build/default/lib/docs/src/conf.py _build/default/lib/docs/ext/*.py .
 
 .PHONY: elixir
 elixir: export MIX_ENV=integration

setup_eunit.template → plugins/ic/priv/setup_eunit.template

@@ -14,7 +14,7 @@
 {dir, "tmp/etc"}.
 {dir, "tmp/data"}.
 {dir, "tmp/tmp_data"}.
-{template, "rel/overlay/etc/default.ini", "tmp/etc/default_eunit.ini"}.
-{template, "rel/overlay/etc/local.ini", "tmp/etc/local_eunit.ini"}.
-{template, "rel/files/eunit.ini", "tmp/etc/eunit.ini"}.
-{template, "rel/overlay/etc/vm.args", "tmp/etc/vm.args"}.
+{template, "../../../rel/overlay/etc/default.ini", "tmp/etc/default_eunit.ini"}.
+{template, "../../../rel/overlay/etc/local.ini", "tmp/etc/local_eunit.ini"}.
+{template, "../../../rel/files/eunit.ini", "tmp/etc/eunit.ini"}.
+{template, "../../../rel/overlay/etc/vm.args", "tmp/etc/vm.args"}.

plugins/ic/src/ic.app.src

@@ -0,0 +1,7 @@
+{application, ic, [
+    {description, "rebar3 ic plugin"},
+    {vsn, "0.1.0"},
+    {registered, []},
+    {applications, [kernel, stdlib]},
+    {env, []}
+]}.

plugins/ic/src/ic.erl

@@ -0,0 +1,8 @@
+-module(ic).
+
+-export([init/1]).
+
+-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
+init(State) ->
+    {ok, State1} = ic_prv_setup_eunit:init(State),
+    {ok, State1}.

plugins/ic/src/ic_prv_setup_eunit.erl

@@ -0,0 +1,81 @@
+-module(ic_prv_setup_eunit).
+
+-behaviour(provider).
+
+-export([init/1, do/1, format_error/1]).
+
+-define(PROVIDER, setup_eunit).
+-define(NAMESPACE, ic).
+-define(CWD, filename:absname(rebar_dir:get_cwd())).
+-define(TEMPLATE, "setup_eunit").
+-define(DEPS, []).
+
+%% ===================================================================
+%% Public API
+%% ===================================================================
+-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
+init(State) ->
+    Provider = providers:create([
+        {namespace, ?NAMESPACE},
+        {name, ?PROVIDER},
+        {module, ?MODULE},
+        {bare, true},
+        {deps, ?DEPS},
+        {example, "rebar3 ic setup_eunit"},
+        {opts, [{force, $f, "force", undefined, "overwrite existing files"}]},
+        {short_desc, "Setup eunit from template"},
+        {desc, "Setup eunit from template"}
+    ]),
+    {ok, rebar_state:add_provider(State, Provider)}.
+
+-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
+do(State) ->
+    build_eunit_config(State),
+    {ok, State}.
+
+-spec format_error(any()) -> iolist().
+format_error(Reason) ->
+    io_lib:format("~p", [Reason]).
+
+%% ===================================================================
+%% Internal functions
+%% ===================================================================
+build_eunit_config(State) ->
+    Force = is_forced(State),
+    DataDir = ?CWD ++ "/tmp/data",
+    TmpDataDir = ?CWD ++ "/tmp/tmp_data",
+    cleanup_dirs([DataDir, TmpDataDir]),
+    AllOpts = [
+        {template, ?TEMPLATE},
+        {prefix, ?CWD},
+        {data_dir, DataDir},
+        {view_index_dir, DataDir},
+        {geo_index_dir, DataDir},
+        {state_dir, TmpDataDir}
+    ],
+    StateNew = lists:foldl(
+        fun({Key, Value}, StateAcc) ->
+            rebar_state:set(StateAcc, Key, Value)
+        end,
+        State,
+        AllOpts
+    ),
+    ok = rebar_templater:new(?TEMPLATE, [], Force, StateNew).
+
+is_forced(State) ->
+    {Args, _} = rebar_state:command_parsed_args(State),
+    case proplists:get_value(force, Args) of
+        undefined -> false;
+        _ -> true
+    end.
+
+cleanup_dirs(Dirs) ->
+    [del_dir(Dir) || Dir <- Dirs, filelib:is_dir(Dir)].
+
+del_dir(Dir) ->
+    All = filelib:wildcard(Dir ++ "/**"),
+    {Dirs, Files} = lists:partition(fun filelib:is_dir/1, All),
+    lists:foreach(fun file:delete/1, Files),
+    SortedDirs = lists:sort(fun(A, B) -> length(A) > length(B) end, Dirs),
+    lists:foreach(fun file:del_dir/1, SortedDirs),
+    file:del_dir(Dir).

rebar.config.script

@@ -107,6 +107,8 @@ os:putenv("COUCHDB_APPS_CONFIG_DIR", filename:join([COUCHDB_ROOT, "rel/apps"])).
 AddConfig = [
     {require_otp_vsn, "23|24|25"},
     {erl_opts, [{i, "../"}, {d, 'COUCHDB_ERLANG_VERSION', VerString}]},
+    {plugins, [ic, erlfmt]},
+	{erlfmt, [write]},
     {eunit_opts, [verbose, {report,{eunit_surefire,[{dir,"."}]}}]},
     {dialyzer, [
         {plt_location, local},