add release scripts

Author: SerCeMan

release.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+set -eu
+set -o pipefail
+
+PROG=$(basename "$0")
+
+info() {
+  echo "$(date '+[%Y-%m-%d %H:%M:%S]') ${PROG}: INFO: $*"
+}
+
+# Prints an error to stderr, and exits.
+error() {
+  echo "$(date '+[%Y-%m-%d %H:%M:%S]') ${PROG} ERROR: $*" >&2
+  exit 1
+}
+
+main() {
+  local current_version
+  current_version=$(cat package.json | jq -r .version)
+  if [[ ! "${current_version}" =~ ^.*-SNAPSHOT$ ]]; then
+    error "pre-release version must be a snapshot"
+  fi
+  current_version=${current_version%-SNAPSHOT}
+  info "releasing ${current_version}"
+  yarn version --new-version "${current_version}"
+  yarn clean
+  yarn dist
+  local next_version
+  info "release version: ${current_version}, next version:"
+  read next_version
+  yarn version --no-git-tag-version --new-version "${new_version}-SNAPSHOT"
+}
+
+main "$@"