Update YugabyteDB version automatically using github action

.ci/update-version.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+set -o errexit -o pipefail
+
+# Following file will modify to update YugabyteDB version
+readonly FILE_TO_UPDATE="variables.tf"
+
+# version_gt compares the given two versions.
+# It returns 0 exit code if the version1 is greater than version2.
+function version_gt() {
+  test "$(echo -e "$1\n$2" | sort -V | head -n 1)" != "$1"
+}
+
+# Verify number of arguments
+if [[ $# -ne 1 ]]; then
+  echo "No arguments supplied. Please provide release version" 1>&2
+  echo "Terminating the script execution." 1>&2
+  exit 1
+fi
+
+release_version="$1"
+echo "Release Version - ${release_version}"
+
+# Verify release version
+if ! [[ "${release_version}" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+  echo "Something wrong with the version. Release version format - *.*.*.*" 1>&2
+  exit 1
+fi
+
+# Current Version in variables.tf
+current_version="$(grep -A 2 "yb_version" "${FILE_TO_UPDATE}" | grep "default" | cut -d '"' -f 2)"
+echo "Current Release Version - ${current_version}"
+
+# Version comparison
+if ! version_gt "${release_version}" "${current_version}" ; then
+  echo "Release version is either older or equal to the current version: '${release_version}' <= '${current_version}'" 1>&2
+  exit 1
+fi
+
+# Following parameter will be updated.
+# 1. value: "2.1.4.0"
+
+echo "Updating..."
+
+# Update Version
+sed -i -E "/^variable \"yb_version\"/,+2 s/[0-9]+.[0-9]+.[0-9]+.[0-9]+/"${release_version}"/" "${FILE_TO_UPDATE}"
+
+echo "Completed"

.github/workflows/update-version.yaml

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+name: "Update YugabyteDB version"
+on:
+  repository_dispatch:
+    types:
+    - build-on-release
+jobs:
+  update-version:
+    if: github.event.client_payload.prerelease == 'false'
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: "Configure git"
+      run: |
+        git config user.name 'YugaByte CI'
+        git config user.email 'yugabyte-ci@users.noreply.github.com'
+    - name: "Extract version number from tag"
+      id: extract-version
+      run: |
+        tag_name="${{ github.event.client_payload.release }}"
+        echo "Extracting version number from the tag '${tag_name}'."
+        version_number="${tag_name/v/}"
+        # Keep dots and count the string length
+        dot_count="$(res="${version_number//[^.]/}"; echo "${#res}")"
+        if [[ "${dot_count}" -eq 2 ]]; then
+          version_number="${version_number}.0"
+        fi
+        if [[ "$(res="${version_number//[^.]/}"; echo "${#res}")" -ne 3 ]]; then
+          echo "The tag '${tag_name}' is invalid. Expected format: 'v1.2.3' or 'v1.2.3.5'." 1>&2
+          exit 1
+        fi
+        echo "Extracted the version number '${version_number}'."
+        echo "::set-output name=yb_version::${version_number}"
+    - name: "Update the version"
+      id: update-version
+      continue-on-error: true
+      run: |
+        .ci/update-version.sh '${{steps.extract-version.outputs.yb_version}}'
+    - name: "Push the changes"
+      if: steps.update-version.outcome == 'success'
+      run: |
+        git status
+        git diff
+        git add variables.tf
+        git commit -m "Update the version to ${{steps.extract-version.outputs.yb_version}}"
+        git push origin ${{ github.ref }}
+    - name: "Status in case of update-version failure"
+      if: steps.update-version.outcome == 'failure'
+      run: |
+        git status
+        git diff
+        exit 1