refactor: use branch name in release-prep

This makes a minor improvement to the `release-prep.sh` script to grab
the version to update to from the branch name.

Author: jsjoeio

ci/build/release-prep.sh

@@ -9,6 +9,9 @@
 
 set -euo pipefail
 
+CHECKMARK="\xE2\x9C\x94"
+DASH="-"
+
 main() {
   if [ "${DRY_RUN-}" = 1 ]; then
     echo "Performing a dry run..."
@@ -76,11 +79,12 @@ main() {
   CODE_SERVER_CURRENT_VERSION=$(node -pe "require('./package.json').version")
   # Ask which version we should update to
   # In the future, we'll automate this and determine the latest version automatically
-  echo "Current version: ${CODE_SERVER_CURRENT_VERSION}"
+  echo -e "$DASH Current version: ${CODE_SERVER_CURRENT_VERSION}"
   # The $'\n' adds a line break. See: https://stackoverflow.com/a/39581815/3015595
-  read -r -p "What version of code-server do you want to update to?"$'\n' CODE_SERVER_VERSION_TO_UPDATE
+  CODE_SERVER_VERSION_TO_UPDATE=$(git rev-parse --abbrev-ref HEAD | perl -pe '($_)=/([0-9]+([.][0-9]+)+)/')
+  echo -e "$CHECKMARK Version in branch name"
+  echo -e "$CHECKMARK Updating to: $CODE_SERVER_VERSION_TO_UPDATE"
 
-  echo -e "Great! We'll prep a PR for updating to $CODE_SERVER_VERSION_TO_UPDATE\n"
   $CMD rg -g '!yarn.lock' -g '!*.svg' -g '!CHANGELOG.md' -g '!lib/vscode/**' --files-with-matches --fixed-strings "${CODE_SERVER_CURRENT_VERSION}" | $CMD xargs sd "$CODE_SERVER_CURRENT_VERSION" "$CODE_SERVER_VERSION_TO_UPDATE"
 
   $CMD git commit --no-verify -am "chore(release): bump version to $CODE_SERVER_VERSION_TO_UPDATE"