Bump a release from shell

bump-release.sh

#!/usr/bin/env bash
# need python-semver package https://pypi.org/project/semver/

set -euf
VERSION=${1-""}

bumpversion() {
   current=$(git describe --tags $(git rev-list --tags --max-count=1))
   echo "Current version is ${current}"

   major=$(python3 -c "import semver,sys;print(str(semver.VersionInfo.parse(sys.argv[1]).bump_major()))" ${current})
   minor=$(python3 -c "import semver,sys;print(str(semver.VersionInfo.parse(sys.argv[1]).bump_minor()))" ${current})
   patch=$(python3 -c "import semver,sys;print(str(semver.VersionInfo.parse(sys.argv[1]).bump_patch()))" ${current})

   echo "If we bump we get, Major: ${major} Minor: ${minor} Patch: ${patch}"
   read -p "To which version you would like to bump [M]ajor, Mi[n]or, [P]atch or Manua[l]: " ANSWER
   if [[ ${ANSWER,,} == "m" ]];then
       mode=major
   elif [[ ${ANSWER,,} == "n" ]];then
       mode=minor
   elif [[ ${ANSWER,,} == "p" ]];then
       mode=patch
   elif [[ ${ANSWER,,} == "l" ]];then
       read -p "Enter version: " -e VERSION
       return
   else
       print "no or bad reply??"
       exit
   fi
   VERSION=$(python3 -c "import semver,sys;print(str(semver.VersionInfo.parse(sys.argv[1]).bump_${mode}()))" ${current})
   [[ -z ${VERSION} ]] && {
       echo "could not bump version automatically"
       exit
   }
   echo "Releasing ${VERSION}"
}

[[ -z ${VERSION} ]] && bumpversion