Hugo Bash Script

#!/bin/bash

blogdir=~/blog

newpost() {
        read -p "Enter post filename: " post_filename
        hugo_post=content/posts/$post_filename.md

        cd $blogdir
        hugo new $hugo_post
        nvim $hugo_post -c :NoNeckPain
}

publish_post() {
        read -p "Enter commit message: " commit_message

        gh_main=~/blog-gh/main/
        gh_pages=~/blog-gh/ghpages/

        cd $blogdir
        hugo -d $gh_main
        hugo -d $gh_pages
        echo -e '\n'
        
        # commit and push to main branch
        cd $gh_main
        echo "-------Main Branch-------"
        git add .
        git commit -m "$commit_message"
        git push
        echo -e '\n'

        # commit and push to gh-pages branch
        cd $gh_pages
        echo "-------gh-pages Branch-------"
        git add .
        git commit -m "$commit_message"
        git push
        echo "-----------------------------"
        echo -e '\n'

        if [[ $? -eq 0 ]]
                then
                        echo "Blog published."
                        echo -e '\n'
                else
                        echo "Push unsuccessful."
                        echo -e '\n'
        fi
}

case $1 in
        new)
                newpost
                ;;

        publish)
                publish_post
                ;;

        "")
                # If no parameter is provided, hugo will 
                # serve existing blog iteration at localhost:1313
                cd ~/blog/
                hugo serve
                ;;

        *)
                echo "Invalid parameter."
                ;;
esac