From d44c6eedfdd9955cc46550a93d138fa73e82ae93 Mon Sep 17 00:00:00 2001
From: "Zaiming (Stone) Shi" <zmstone@gmail.com>
Date: Wed, 26 Jan 2022 17:40:05 +0100
Subject: [PATCH] ci: find relup base version using a script

---
 .github/workflows/build_packages.yaml |  8 +--
 scripts/relup-base-vsns.sh            | 71 +++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 6 deletions(-)
 create mode 100755 scripts/relup-base-vsns.sh

diff --git a/.github/workflows/build_packages.yaml b/.github/workflows/build_packages.yaml
index 7e9968a5e..2a7d43958 100644
--- a/.github/workflows/build_packages.yaml
+++ b/.github/workflows/build_packages.yaml
@@ -36,12 +36,8 @@ jobs:
         shell: bash
         working-directory: source
         run: |
-          ce_vsn="$(./pkg-vsn.sh community)"
-          ee_vsn="$(./pkg-vsn.sh enterprise)"
-          ce_base_vsn_prefix="$(echo $ce_vsn | grep -oE '^[0-9]+\.[0-9]+')"
-          ee_base_vsn_prefix="$(echo $ee_vsn | grep -oE '^[0-9]+\.[0-9]+')"
-          ce_old_vsns="$(git tag -l | grep -E "v${ce_base_vsn_prefix}\.[0-9]+$" | grep -v "v${ee_vsn}" | xargs)"
-          ee_old_vsns="$(git tag -l | grep -E "e${ee_base_vsn_prefix}\.[0-9]+$" | grep -v "e${ee_vsn}" | xargs)"
+          ce_old_vsns="$(./scripts/relup-base-vsns.sh community  | xargs)"
+          ee_old_vsns="$(./scripts/relup-base-vsns.sh enterprise | xargs)"
           echo "::set-output name=ce_old_vsns::${ce_old_vsns}"
           echo "::set-output name=ee_old_vsns::${ee_old_vsns}"
       - name: get_all_deps
diff --git a/scripts/relup-base-vsns.sh b/scripts/relup-base-vsns.sh
new file mode 100755
index 000000000..5a94b58e3
--- /dev/null
+++ b/scripts/relup-base-vsns.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+## This script prints the relup upgrade base versions
+## for the given EMQ X edition (specified as first arg)
+##
+## The second argument is the current release version
+## if not provided, it's taken from pkg-vsn.sh
+
+usage() {
+    echo "Usage: $0 <EMQX_PROFILE> [<CURRENT_VERSION>]"
+    echo "e.g.   $0 enterprise 4.3.10"
+    exit 1
+}
+
+parse_semver() {
+    echo "$1" | tr '.|-' ' '
+}
+
+PROFILE="${1:-}"
+[ -z "${PROFILE}" ] && usage
+
+## Get the current release version
+## e.g.
+## 5.0.0                 when GA
+## 5.0.0-beta.3          when pre-release
+## 5.0.0-beta.3.abcdef00 when developing
+CUR="${2:-}"
+if [ -z "${CUR}" ]; then
+    CUR="$(./pkg-vsn.sh "$PROFILE")"
+fi
+
+# shellcheck disable=SC2207
+CUR_SEMVER=($(parse_semver "$CUR"))
+
+if [ "${#CUR_SEMVER[@]}" -lt 3 ]; then
+    echo "$CUR is not Major.Minor.Patch"
+    usage
+fi
+
+## when the current version has no suffix such as -abcdef00
+## it is a formal release
+if [ "${#CUR_SEMVER[@]}" -eq 3 ]; then
+    IS_RELEASE=true
+else
+    IS_RELEASE=false
+fi
+
+case "${PROFILE}" in
+    *enterprise*)
+        GIT_TAG_PREFIX="e"
+        ;;
+    *)
+        GIT_TAG_PREFIX="v"
+        ;;
+esac
+
+while read -r git_tag; do
+    # shellcheck disable=SC2207
+    semver=($(parse_semver "$git_tag"))
+    if [ "${#semver[@]}" -eq 3 ] && [ "${semver[2]}" -le "${CUR_SEMVER[2]}" ]; then
+        if [ ${IS_RELEASE} = true ] && [ "${semver[2]}" -eq "${CUR_SEMVER[2]}" ] ; then
+            # do nothing
+            # exact match, do not print current version
+            # because current version is not an upgrade base
+            true
+        else
+            echo "$git_tag"
+        fi
+    fi
+done < <(git tag -l "${GIT_TAG_PREFIX}${CUR_SEMVER[0]}.${CUR_SEMVER[1]}.*")