Last run sh git changelog

.runs.sh

#!/bin/bash

set -e


## Variables

GULP_TEST_FILES="gulpfile.js .gulp/**/*.js $npm_package_directories_test/*.js"
CHANGELOG_FILE="CHANGELOG.md"

TODAY=$(date +"%Y-%m-%d")
REQ_DEP=(git node npm gulp bower)

## Colorful logs

echo_section() { echo -e "\n\033[4;37m$@\033[0m\n"; }    # Underline text
echo_success() { echo -e "\033[0;34m✔ $@ \033[0m"; }     # Blue text
echo_error() { echo -e "\033[0;31m✖ $@ \033[0m"; }       # Red text

## ==================================== ##
##  Main function
## ==================================== ##

runs()
{
    if [ $# -ne 1 ]
    then
        runs help
        return
    fi
    case "$1" in
        "help")
            echo ""
            echo "  Usage: npm run [ help | test | release ]"
            echo ""
            ;;
        "test")

            echo_section "Gulp and tests files syntax check..."
            node_modules/gulp-jscs/node_modules/jscs/bin/jscs $GULP_TEST_FILES
            node_modules/gulp-jshint/node_modules/jshint/bin/jshint $GULP_TEST_FILES

            echo_section "Build '$npm_package_directories_dest' directory (development)..."
            gulp default

            echo_section "Run client tests (mocha-phantomjs)..."
            gulp test

            echo_success "Test successful"

            ;;
        "release")

            # Test it first
            # runs test

            echo_section "Bump project version..."
            ## Display infos
            echo "Current Tag:" $npm_package_version
            echo "Release Types:  <newversion>|major|minor|patch|premajor|preminor|prepatch|prerelease"
            ## Prompt for version type
            read -p "Type => " V_TYPE
            ## Bump the version and write the new data back to package.json
            npm version -m "chore(release): v%s" $V_TYPE

            echo_section "Generate changelog from git metadata"
            ## Create changelog from git log
            generate_changelog $CHANGELOG_FILE $V_TYPE

            echo_section "Build '$npm_package_directories_dest' directory (bundle and production)..."
            ## Compile for production
            gulp bundle --production --homepage
            ## Cleanup
            gulp clean:bundle

            echo ""
            echo_success "Release successful"

            ;;
        *)
            runs help
            ;;
    esac
}

## ==================================== ##
##  Helper functions
## ==================================== ##

check_dependencies()
{
    local CMD=$(command -v $1)
    if [[ -x $CMD ]]
    then
        echo_success "$1"
    else
        echo_error "$1 is required"
        if [[ $1 == "npm" || "gulp" || "bower" ]]
        then
            echo "installing $1 globally..."
            npm install -g $1 &> /dev/null
            check_dependencies $1
        fi
    fi
}

check_git()
{
    if [[ -d ".git" ]]
    then
        GIT_READY=true
        echo_success "Git ready"
    else
        GIT_READY=false
        echo_error "Not a git repository"
    fi
}

generate_changelog()
{
    ## Get new git tag
    local GIT_NEW_TAG=`git describe --abbrev=0 --tags`
    local GIT_LOG_FORMAT="- %s [%h]($npm_package_repository_url/commit/%H \"view commit\")%n"

    ## Heading depending of the release type
    [[ $2 == "major" ]] && HD="#" || HD="##"

    ## Backup the current changelog
    mv $1 $TODAY-$1

    ## Create changelog file and add title
    echo -e "\n$HD $GIT_NEW_TAG - $TODAY\n" > $1

    ## Append the log from the last release to the new changelog
    git log \
        --no-merges \
        --date=short \
        --pretty=format:"$GIT_LOG_FORMAT" v$npm_package_version..HEAD >> $1

    ## Append the old log to the new changelog
    cat $TODAY-$1 >> $1

    ## Remove backup changelog
    rm $TODAY-$1

    ## Changelog done !
    echo "'$1' updated"

    ## Git add and commits the changelog
    git add $1
    git commit -m "docs(changelog): add changes for $GIT_NEW_TAG" &> /dev/null
}

## ==================================== ##
##  Run it !
## ==================================== ##

echo_section "Check dependencies..."

for i in "${REQ_DEP[@]}"
do
    check_dependencies $i
done

check_git

runs "$@"