flow-release-start.sh

#!/bin/bash

# Thu Nov  7 18:43:39 IST 2013, ram@sarvasv.in (ramonrails)
# Borrowed from gitflow & bumpversion (URLs referenced below) and enhanced further

# works with a file called VERSION in the current directory,
# the contents of which should be a semantic version number
# such as "1.2.3"

# this script will display the current version, automatically
# suggest a "minor" version update, and ask for input to use
# the suggestion, or a newly entered value.

# once the new version number is determined, the script will
# pull a list of changes from git history, prepend this to
# a file called CHANGES (under the title of the new version
# number) and create a GIT tag.

# following methods are borrowed from gitflow source code
# https://github.com/nvie/gitflow/blob/develop/gitflow-common

git_local_branch_exists() {
        has $1 $(git_local_branches)
}

gitflow_has_master_configured() {
        local master=$(git config --get gitflow.branch.master)
        [ "$master" != "" ] && git_local_branch_exists "$master"
}

gitflow_has_develop_configured() {
        local develop=$(git config --get gitflow.branch.develop)
        [ "$develop" != "" ] && git_local_branch_exists "$develop"
}

gitflow_has_prefixes_configured() {
        git config --get gitflow.prefix.feature >/dev/null 2>&1     && \
        git config --get gitflow.prefix.release >/dev/null 2>&1     && \
        git config --get gitflow.prefix.hotfix >/dev/null 2>&1      && \
        git config --get gitflow.prefix.support >/dev/null 2>&1     && \
        git config --get gitflow.prefix.versiontag >/dev/null 2>&1
}

gitflow_is_initialized() {
        gitflow_has_master_configured                    && \
        gitflow_has_develop_configured                   && \
        [ "$(git config --get gitflow.branch.master)" !=    \
          "$(git config --get gitflow.branch.develop)" ] && \
        gitflow_has_prefixes_configured
}

# now bumpversion bash script continues
# borrowed from https://gist.github.com/pete-otaqui/4188238
# Enahncements:
#   * added parameter support major|minor|patch|bugfix|hotfix
#   * without parameter, script assumes minor bump, as earlier
#   * script will smartly use gitflow when available, or snap back to git

if [ -f VERSION ]; then
    INPUT_STRING=`cat VERSION`

    if [ gitflow_is_initialized ]; then
      # git flow
      #
      echo "$(tput setaf 5)starting release $INPUT_STRING...$(tput sgr0)"
      git flow release start "$INPUT_STRING"
      # # mate CHANGES -w
      # echo "git flow release finish $INPUT_STRING..."
      # git flow release finish "$INPUT_STRING"
      # # git push origin --all
      
    else
      # regular git tags
      echo "$(tput setaf 5)git tag $INPUT_STRING...$(tput sgr0)"
      git tag -a -m "Tagging version $INPUT_STRING" "v$INPUT_STRING"
      echo "$(tput setaf 5)publishing tags...$(tput sgr0)"
      git push origin --tags
    fi
else
    echo "$(tput setaf 5)Could not find a VERSION file$(tput sgr0)"
    read -p "$(tput setaf 5)Do you want to create a VERSION file and start from scratch? [y] $(tput sgr0)" RESPONSE
    if [ "$RESPONSE" = "" ]; then RESPONSE="y"; fi
    if [ "$RESPONSE" = "Y" ]; then RESPONSE="y"; fi
    if [ "$RESPONSE" = "Yes" ]; then RESPONSE="y"; fi
    if [ "$RESPONSE" = "yes" ]; then RESPONSE="y"; fi
    if [ "$RESPONSE" = "YES" ]; then RESPONSE="y"; fi
    if [ "$RESPONSE" = "y" ]; then
        echo "$(tput setaf 5)initializing VERSION & CHANGES...$(tput sgr0)"
        echo "0.1.0" > VERSION
        echo "Version 0.1.0" > CHANGES
        echo "-------------------" >> CHANGES
        echo "" >> CHANGES
        git log --pretty=format:" - %s" >> CHANGES
        echo "" >> CHANGES
        echo "" >> CHANGES
        git add VERSION CHANGES
        git commit -m "Added VERSION and CHANGES files, Version updated to v0.1.0"
        if [ gitflow_is_initialized ]; then
          # git flow
          git flow release start "v0.1.0"
          git flow release finish "v0.1.0"
        else
          # regular git tags
          git tag -a -m "Tagging version 0.1.0" "v0.1.0"
          git push origin --tags
        fi
        echo "$(tput setaf 5)versioning and change log ready. $(tput setaf 2)let's roll!$(tput sgr0)"
    fi

fi