dgiot/scripts/ensure-rebar3.sh
2022-12-31 10:44:46 +08:00

44 lines
1.0 KiB
Bash
Executable File

#!/usr/bin/env bash
set -euo pipefail
## 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="3.14.3-emqx-8"
;;
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]}")/.."
DOWNLOAD_URL='https://gitee.com/fastdgiot/rebar3/releases/download/'
download() {
echo "downloading rebar3 ${VERSION}"
curl -f -L "${DOWNLOAD_URL}/${VERSION}/rebar3" -o ./rebar3
}
# get the version number from the second line of the escript
# because command `rebar3 -v` tries to load rebar.config
# which is slow and may print some logs
version() {
head -n 2 ./rebar3 | tail -n 1 | tr ' ' '\n' | grep -E '^.+-emqx-.+'
}
if [ -f 'rebar3' ] && [ "$(version)" = "$VERSION" ]; then
exit 0
fi
download
chmod +x ./rebar3