From b05b77bcbc9c3d13322aa33d445d555ca7032659 Mon Sep 17 00:00:00 2001
From: Shawn <506895667@qq.com>
Date: Thu, 28 Apr 2022 19:28:29 +0800
Subject: [PATCH] chore: port ensure-rebar3.sh from 4.x

---
 Makefile                 |  3 +--
 scripts/ensure-rebar3.sh | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 3c31d62ab..586ab8f22 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,4 @@
 $(shell $(CURDIR)/scripts/git-hooks-init.sh)
-REBAR_VERSION = 3.16.1-emqx-1
 REBAR = $(CURDIR)/rebar3
 BUILD = $(CURDIR)/build
 SCRIPTS = $(CURDIR)/scripts
@@ -36,7 +35,7 @@ all: $(REBAR) $(PROFILES)
 
 .PHONY: ensure-rebar3
 ensure-rebar3:
-	@$(SCRIPTS)/ensure-rebar3.sh $(REBAR_VERSION)
+	@$(SCRIPTS)/ensure-rebar3.sh
 
 .PHONY: ensure-hex
 ensure-hex:
diff --git a/scripts/ensure-rebar3.sh b/scripts/ensure-rebar3.sh
index f15127030..a735ead43 100755
--- a/scripts/ensure-rebar3.sh
+++ b/scripts/ensure-rebar3.sh
@@ -2,7 +2,21 @@
 
 set -euo pipefail
 
-VERSION="$1"
+## rebar3 tag 3.18.0-emqx-1 is compiled using otp24.1.5.
+## we have to use an otp24-compiled rebar3 because the defination of record #application{}
+## in systools.hrl is changed in otp24.
+case ${OTP_VSN} in
+    23*)
+        VERSION="3.16.1-emqx-1"
+        ;;
+    24*)
+        VERSION="3.18.0-emqx-1"
+        ;;
+    *)
+        echo "Unsupporetd Erlang/OTP version $OTP_VSN"
+        exit 1
+        ;;
+esac
 
 # ensure dir
 cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")/.."
@@ -10,7 +24,8 @@ cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")/.."
 DOWNLOAD_URL='https://github.com/emqx/rebar3/releases/download'
 
 download() {
-    curl --silent --show-error -f -L "${DOWNLOAD_URL}/${VERSION}/rebar3" -o ./rebar3
+    echo "downloading rebar3 ${VERSION}"
+    curl -f -L "${DOWNLOAD_URL}/${VERSION}/rebar3" -o ./rebar3
 }
 
 # get the version number from the second line of the escript