Do rebar too

Author: ericmj

scripts/release_rebar.sh

@@ -16,22 +16,37 @@ set -e -u -o pipefail
 function main {
   installs_dir="$PWD/tmp/installs"
   rebar_csv="${installs_dir}/rebar.csv"
+  rebar_1x_csv="${installs_dir}/rebar3-1.x.csv"
 
   rm -rf "${installs_dir}"
   mkdir "${installs_dir}"
 
-  # rebar.csv is always rebuilt from scratch. rebar builds are not reproducible, unfortunately.
   touch "${rebar_csv}"
 
+  s3down rebar3-1.x.csv "${rebar_1x_csv}" || true
+  touch "${rebar_1x_csv}"
+
   # UPDATE THIS FOR EVERY RELEASE
+
+  # Old Elixir versions (old CSV format)
+  build_old 3.13.3  17.5.6.10  1.0.0        xenial-20200326
+  build_old 3.15.2  21.3.8.21  1.11.4       xenial-20201014
+  build_old 3.15.2  22.3.4.22  1.13.0       xenial-20210114
+  build_old 3.22.0  23.3.4.18  1.14.5       xenial-20210804
+  build_old 3.22.0  24.3.4.11  1.15.0-rc.0  xenial-20210804
+
+  # New Elixir versions (new CSV format)
   build 3.22.0 25.3.2.20 1.18.3 noble-20250404
   build 3.22.0 26.2.5.11 1.18.3 noble-20250404
   build 3.24.0 25.3.2.20 1.18.3 noble-20250404
   build 3.24.0 26.2.5.11 1.18.3 noble-20250404
   build 3.24.0 27.3.3    1.18.3 noble-20250404
   build 3.25.1 28.0.1    1.18.4 noble-20250714
 
+  rm -f "${rebar_1x_csv}.bak"
+
   openssl dgst -sha512 -sign "${ELIXIR_PEM}" "${rebar_csv}" | openssl base64 > "${rebar_csv}.signed"
+  openssl dgst -sha512 -sign "${ELIXIR_PEM}" "${rebar_1x_csv}" | openssl base64 > "${rebar_1x_csv}.signed"
   cd $installs_dir
   for path in $(find . -type f | sort); do
     path="${path#./}"
@@ -49,6 +64,34 @@ function main {
   fi
 }
 
+# $1 = rebar version
+# $2 = erlang version
+# $3 = elixir version
+# $4 = ubuntu version
+function build_old {
+  rebar_version=$1
+  otp_version=$2
+  elixir_version=$3
+  ubuntu_version=$4
+
+  echo "Building ${rebar_version} ${otp_version} ${ubuntu_version} (old format)"
+  mkdir -p "${installs_dir}/${elixir_version}"
+
+  docker run -v "${installs_dir}/${elixir_version}":/installs hexpm/erlang:${otp_version}-ubuntu-${ubuntu_version} sh -c "\
+    apt update && apt -y install git && \
+    git clone https://github.com/erlang/rebar3.git -b ${rebar_version} && \
+    cd rebar3 && \
+    ./bootstrap && \
+    cp rebar3 /installs/rebar3 && \
+    cp rebar3 /installs/rebar3-${rebar_version}
+    "
+
+  sed -i.bak "/,${elixir_version}\$/d" "${rebar_1x_csv}"
+  sha=$(shasum -a 512 "${installs_dir}/${elixir_version}/rebar3")
+  sha=($sha)
+  echo "${rebar_version},${sha},${elixir_version}" >> "${rebar_1x_csv}"
+}
+
 # $1 = rebar version
 # $2 = erlang version
 # $3 = elixir version