publish-to-gh-pages

#!/bin/bash
set -e
set -o pipefail

# Some of the code here was borrowed from Jess's example action: 
# https://github.com/jessfraz/branch-cleanup-action

# This one is populated by GitHub for free :)
if [[ -z "$GITHUB_REPOSITORY" ]]; then
	echo "Set the GITHUB_REPOSITORY env variable."
	exit 1
fi

# Custom Required Environment Variables
if [[ -z "$PUBLISH_DIRECTORY" ]]; then
	echo "Set the GITHUB_ACTOR env variable."
	exit 1
fi

if [[ -z "$GIT_PERSONAL_ACCESS_TOKEN" ]]; then
	echo "Set the GIT_PERSONAL_ACCESS_TOKEN env variable."
	exit 1
fi

if [[ -z "$GIT_USER" ]]; then
	echo "Set the GIT_USER env variable."
	exit 1
fi

if [[ -z "$GIT_EMAIL" ]]; then
	echo "Set the GIT_EMAIL env variable."
	exit 1
fi

main(){
    repo="repo/"
    repo_url="https://$GIT_USER:$GIT_PERSONAL_ACCESS_TOKEN@github.com/$GITHUB_REPOSITORY.git"
    build_files="../$PUBLISH_DIRECTORY/*"

    git clone $repo_url $repo
    cd $repo
    # Set the commit user details
    git config user.name "$GIT_USER"
    git config user.email "$GIT_EMAIL"
    git config remote.origin.url $repo_url

    # Get the repository's gh-pages branch
    git fetch origin gh-pages
    git checkout gh-pages
    # Remove the current files
    git rm --ignore-unmatch -rf .
    echo "Copy over files from $build_files"
    cp -r $build_files .
    ls -al
    git status

    # Check to see if the number of changes is 0
    changes=$(git status --short | wc -l)
    if [[ "$changes" -eq "0" ]]; then
        # Don't commit a change if no changes to be made
        echo "No changes from current published build, exiting."
    else
        # Commit the current changes and push
        git add .
        git commit -m "Published via Github Action."
        git status
        git push -u origin gh-pages
    fi
    
    # Clean up
    cd ..
    rm -rf $repo
}

main "$@"