From 88ae489219c03b5075bfcb38cecf98cc507e0557 Mon Sep 17 00:00:00 2001
From: Thales Macedo Garitezi <thalesmg@gmail.com>
Date: Thu, 3 Feb 2022 17:31:47 -0300
Subject: [PATCH 1/2] fix(mix): set `emqx_vsn` compile info

Currently, `emqx_release.erl` depends on the `erl_opts` option
`compile_info` being set by Rebar3 to include `{emqx_vsn, $PKG_VSN}`
to report the version, for instance, in `emqx ctl status`.

Since Mix does not provide a simple way to pass `erl_opts` to Rebar3
dependencies without creating a `mix.exs` file, the workaround is to
set the environment variable `ERL_COMPILER_OPTIONS` to include that
value before invoking the Erlang compiler on the Rebar3 dependencies.
---
 build | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build b/build
index 1e564eee1..eebf26771 100755
--- a/build
+++ b/build
@@ -240,6 +240,11 @@ export_release_vars() {
       exit 1
   esac
   export MIX_ENV="$profile"
+  # At this time, Mix provides no easy way to pass `erl_opts' to
+  # dependencies.  The workaround is to set this variable before
+  # compiling the project, so that `emqx_release.erl' picks up
+  # `emqx_vsn' as if it was compiled by rebar3.
+  export ERL_COMPILER_OPTIONS="[{compile_info,[{emqx_vsn,\"${PKG_VSN}\"}]}]"
 }
 
 log "building artifact=$ARTIFACT for profile=$PROFILE"

From 9021b7e9b8c93943598f002dd3defcf588ba0220 Mon Sep 17 00:00:00 2001
From: Thales Macedo Garitezi <thalesmg@gmail.com>
Date: Fri, 4 Feb 2022 12:48:52 -0300
Subject: [PATCH 2/2] fix(mix): set enterprise compile flag

---
 build | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/build b/build
index eebf26771..5d98fa026 100755
--- a/build
+++ b/build
@@ -224,6 +224,12 @@ make_docker_testing() {
        -f "${DOCKERFILE_TESTING}" .
 }
 
+function join {
+  local IFS="$1"
+  shift
+  echo "$*"
+}
+
 # used to control the Elixir Mix Release output
 # see docstring in `mix.exs`
 export_release_vars() {
@@ -240,11 +246,22 @@ export_release_vars() {
       exit 1
   esac
   export MIX_ENV="$profile"
+
+  local erl_opts=()
+
+  if [[ "$profile" = *enterprise* ]]
+  then
+    erl_opts+=( "{d,'EMQX_ENTERPRISE'}" )
+  fi
+
   # At this time, Mix provides no easy way to pass `erl_opts' to
   # dependencies.  The workaround is to set this variable before
   # compiling the project, so that `emqx_release.erl' picks up
   # `emqx_vsn' as if it was compiled by rebar3.
-  export ERL_COMPILER_OPTIONS="[{compile_info,[{emqx_vsn,\"${PKG_VSN}\"}]}]"
+  erl_opts+=( "{compile_info,[{emqx_vsn,\"${PKG_VSN}\"}]}" )
+
+  ERL_COMPILER_OPTIONS="[$(join , "${erl_opts[@]}")]"
+  export ERL_COMPILER_OPTIONS
 }
 
 log "building artifact=$ARTIFACT for profile=$PROFILE"