#!/usr/bin/env bash

# encoding: utf-8

# Handle release process

# Updates the VERSION.txt file and creates the tag

set -Eeuo pipefail

# Current Git branch

branch=$(git branch --show-current)

# Require master

if [[ "$branch" != "master" ]]; then

echo "Not in master exiting"

exit 1

fi

# Require the current working directory to be clean

if [[ -n "$(git status --porcelain)" ]]; then

echo "Git repository is not clean exiting"

exit 1

fi

# Require the version file

if [[ ! -f "VERSION.txt" ]]; then

echo "VERSION.txt file not found exiting"

exit 1

fi

# Parse the version file

major=$(grep "VERSION_MAJOR" VERSION.txt | cut -d" " -f2)

minor=$(grep "VERSION_MINOR" VERSION.txt | cut -d" " -f2)

patch=$(grep "VERSION_PATCH" VERSION.txt | cut -d" " -f2)

version_changed=

version_message=

gpg_sign=

parse_params() {

while :; do

case "${1-}" in

-v | --verbose) set -x ;;

--major)

major=$((major + 1))

minor=0

patch=0

version_changed=true

;;

--minor)

minor=$((minor + 1))

patch=0

version_changed=true

;;

--patch)

patch=$((patch + 1))

version_changed=true

;;

--sign)

gpg_sign=true

;;

-m | --message)

version_message="${2-}"

shift

;;

-?*)

echo "Unknown option: $1"

exit 1

;;

*) break ;;

esac

shift

done

return 0

}

parse_params "$@"

# If nothing has changed then just exit

if [[ -z $version_changed ]]; then

echo "Nothing to do"

exit 0

fi

# Sorry tag is already taken.

if [[ -n "$(git tag -l "v$major.$minor.$patch")" ]]; then

echo "Tag 'v$major.$minor.$patch' was taken"

exit 1

fi

if [[ "$patch" = 0 ]] && [[ -n "$(git tag -l "v$major.$minor")" ]]; then

echo "Tag 'v$major.$minor' was taken"

exit 1

fi

if [[ -z "$version_message" ]]; then

version_message="Version $major.$minor.$patch"

fi

echo "Ready to commit and tag a new version: $major.$minor.$patch"

echo "Version message will be: $version_message"

read -p "Ready to commit? [Y/N]: " -n 1 -r

echo

if [[ $REPLY =~ ^[Yy]$ ]]; then

# Update the version file.

perl -pi -e "s/(VERSION_MAJOR)\s+[0-9]+/\1 $major/g" VERSION.txt

perl -pi -e "s/(VERSION_MINOR)\s+[0-9]+/\1 $minor/g" VERSION.txt

perl -pi -e "s/(VERSION_PATCH)\s+[0-9]+/\1 $patch/g" VERSION.txt

if [[ -n "$gpg_sign" ]]; then

echo "Create a SIGNED release"

# Create a SIGNED release commit

git commit -a -S -m "Incrementing version number to $major.$minor.$patch"

# Tag it like a champ!

git tag -s "v$major.$minor.$patch" -m "$version_message"

else

echo "Create an UNSIGNED release"

# Create an UNSIGNED release commit

git commit -am "Incrementing version number to $major.$minor.$patch"

# Create an UNSIGNED tag

git tag -a "v$major.$minor.$patch" -m "$version_message"

fi

echo "Committed and tagged a new release"

read -p "Enter the name of the upstream remote (default: origin): " upstream -r

upstream=${upstream:-origin}

read -p "Push commit and tag to remote '$upstream'? [Y/N]: " -n 1 -r

echo

if [[ $REPLY =~ ^[Yy]$ ]]; then

git push "$upstream" HEAD

git push "$upstream" "$major.$minor.$patch"

echo "Pushed data to remote '$upstream'. Congrats!"

else

echo "You need to 'git push $upstream HEAD' and 'git push $upstream --tags' manually."

fi

else

echo "Chicken!"

fi