typescript-action/script/release

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#!/bin/bash
# Exit early
# See: https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#The-Set-Builtin
set -e
# About:
#
# This is a helper script to tag and push a new release. GitHub Actions use
# release tags to allow users to select a specific version of the action to use.
#
# See: https://github.com/actions/typescript-action#publishing-a-new-release
#
# This script will do the following:
#
# 1. Get the latest release tag
# 2. Prompt the user for a new release tag
# 3. Tag the new release
# 4. Push the new tag to the remote
#
# Usage:
#
# script/release
# Variables
tag_regex='v[0-9]+\.[0-9]+\.[0-9]+$'
tag_glob='v[0-9].[0-9].[0-9]*'
# Terminal colors
OFF='\033[0m'
BOLD_RED='\033[1;31m'
BOLD_GREEN='\033[1;32m'
BOLD_BLUE='\033[1;34m'
BOLD_PURPLE='\033[1;35m'
BOLD_UNDERLINED='\033[1;4m'
BOLD='\033[1m'
# Get the latest release tag
if ! latest_tag=$(git describe --abbrev=0 --match="$tag_glob"); then
# There are no existing release tags
echo -e "No tags found (yet) - Continue to create and push your first tag"
latest_tag="[unknown]"
fi
# Display the latest release tag
echo -e "The latest release tag is: ${BOLD_BLUE}${latest_tag}${OFF}"
# Prompt the user for the new release tag
read -r -p 'Enter a new release tag (vX.X.X format): ' new_tag
# Validate the new release tag
if echo "$new_tag" | grep -q -E "$tag_regex"; then
# Release tag is valid
echo -e "Tag: ${BOLD_BLUE}$new_tag${OFF} is valid syntax"
else
# Release tag is not `vX.X.X` format
echo -e "Tag: ${BOLD_BLUE}$new_tag${OFF} is ${BOLD_RED}not valid${OFF} (must be in ${BOLD}vX.X.X${OFF} format)"
exit 1
fi
# Remind user to update the version field in package.json
echo -e -n "Make sure the version field in package.json is ${BOLD_BLUE}$new_tag${OFF}. Yes? [Y/${BOLD_UNDERLINED}n${OFF}] "
read -r YN
if [[ ! ($YN == "y" || $YN == "Y") ]]; then
# Package.json version field is not up to date
echo -e "Please update the package.json version to ${BOLD_PURPLE}$new_tag${OFF} and commit your changes"
exit 1
fi
# Tag the new release
git tag -a "$new_tag" -m "$new_tag Release"
echo -e "Tagged: ${BOLD_GREEN}$new_tag${OFF}"
# Push the new tag to the remote
git push --follow-tags
echo -e "Tags: ${BOLD_GREEN}$new_tag${OFF} pushed to remote"
echo -e "${BOLD_GREEN}Done!${OFF}"