Merge pull request #7821 from terry-xiaoyu/update_ensure_rebar3

chore: port ensure-rebar3.sh from 4.x

.github/workflows/elixir_apps_check.yaml

@@ -36,7 +36,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: ensure rebar
-        run: ./scripts/ensure-rebar3.sh 3.16.1-emqx-1
+        run: ./scripts/ensure-rebar3.sh
       - name: check applications
         run: ./scripts/check-elixir-applications.exs
       - name: check applications started with emqx_machine

.github/workflows/elixir_deps_check.yaml

@@ -13,7 +13,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2.4.0
       - name: ensure rebar
-        run: ./scripts/ensure-rebar3.sh 3.16.1-emqx-1
+        run: ./scripts/ensure-rebar3.sh
       - name: setup mix
         run: |
           mix local.hex --force

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:

scripts/ensure-rebar3.sh

@@ -2,7 +2,22 @@
 
 set -euo pipefail
 
-VERSION="$1"
+## rebar3 tag 3.18.0-emqx-1 is compiled using otp24.1.5.
+## we have to use an otp24-compiled rebar3 because the defination of record #application{}
+## in systools.hrl is changed in otp24.
+OTP_VSN="${OTP_VSN:-$(./scripts/get-otp-vsn.sh)}"
+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 +25,8 @@ 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