push_ghpages.sh

#! /bin/bash

# This script is used to automate the process of push to the branch gh-pages from github.
# The main purpose of the "manually" deploying is to allow the use of a "Thirt Party Plugin", that don't work with automatic deploy. 
#
# This script dependents from a branch previously created "gh-pages" on github and the folder "_site" were the build content must be.
# 
# Description:
# Fist it creates a folder called "PUSH_FOLDER", 
# then it's cloned only the branch "gh-pages" from github.
# The directory is temporaly changed to "PUSH_FOLDER". 
# In the directory it 

BUILD_FOLDER="_site";
PUSH_FOLDER="_site_ghpages"; 
COMMIT_MESSAGE=$1



#Remove all the content from the "PUSH_FOLDER".
function removeAllContentFromPushFolder(){
        echo $(rm -r $PUSH_FOLDER/*);
}

#Create the folder "PUSH_FOLDER".
function createFolderToPush(){
        echo "$(mkdir $PUSH_FOLDER)"
}

#Copy all the content from the folder _site to PUSH_FOLDER.
function copySiteToFolder(){
    echo "$(cp -r $BUILD_FOLDER/. $PUSH_FOLDER)"
}

#Clone only the branch "gh-pages" to the folder "PUSH_FOLDER". 
function cloneGhpages(){
    echo "$(git clone --branch gh-pages `git config remote.origin.url` $PUSH_FOLDER)"
}

function prepareThePushFolder(){
    if [[ -d ./$PUSH_FOLDER ]]
    then
        #Remove all the content from the folder "PUSH_FOLDER".
        removeAllContentFromPushFolder
    else
        #Create the folder "PUSH_FOLDER" if it doesn't exist.
        createFolderToPush
        #Call the function that clone the branch "gh-pages" to the folder "PUSH_FOLDER". 
        cloneGhpages
    fi
    #Call the function that copy all the content from the folder _site to "PUSH_FOLDER".
    copySiteToFolder
}

function changeDirectoryToGhpages(){
    CHANGE_TO_SITE= cd $PUSH_FOLDER
    echo $CHANGE_TO_SITE;
}

function setMessageCommit(){
    if ! [ "$COMMIT_MESSAGE" ]
    then
      COMMIT_MESSAGE='Automatic Commit'
    else
      echo "$COMMIT_MESSAGE"
    fi
}

function pushBranchGhpages(){
    git add .
    git commit -m "$COMMIT_MESSAGE"
    git push
}

function changeDirectoryBack(){
    BACKFOLDER= cd ..
    echo $BACKFOLDER
}

prepareThePushFolder
changeDirectoryToGhpages
setMessageCommit
pushBranchGhpages
changeDirectoryBack