#!/bin/bash

# push-website: Copies developer's website files to a local server
# directory and ncftp's them to an ISP personal webpages site
# Copyright (C) 2009 David Leutzinger (leutzdave @ charter.net)
# /home/$USER/bin/Website/backup/push-website
# 2009-08-02 vs 0.2
# 2009-08-05 vs 0.3
#            added an md5sum check
# 2009-08-07 vs 1.0
#            Major overhaul eliminating redundant change checks by
#            removing the slow "diff method" and using the output
#            of the "cp -auv"
#            Moved md5sum creates to the end
# 2009-08-07 vs 1.0.1
#            Made BOTH remote server and charter updates dependent
#            upon changes having been found.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

# ---------- Main ----------

CURDIR=`pwd`
EXEDIR="/home/$USER/bin/Website/backup"

DEV="$USER"
DEV_ROOT="$HOME/http"

SERVER_ROOT="/srv/http"
REMOTE_SERVER="gateway"

LOG_dev_public="$EXEDIR/push-website-$DEV-public_html.log"
LOG_website="$EXEDIR/push-website-$DEV-http.log"

CHANGES="$EXEDIR/push-website-changed-files.txt"

clear

#----------------------------------------
# Copy website files from $DEV_ROOT to $SERVER_ROOT
SOURCE="$DEV_ROOT"
TARGET="$SERVER_ROOT"

# Rotate logs
mv $LOG_website"1" $LOG_website"2"
mv $LOG_website $LOG_website"1"

# Start log
date=`date`
echo "" | tee -a $LOG_website
echo "----------------------------------------" | tee -a $LOG_website
echo "Copy $SOURCE to $TARGET" | tee -a $LOG_website
echo "$date" | tee -a $LOG_website
echo "Rotated log $LOG_website" | tee -a $LOG_website
echo "----------------------------------------" | tee -a $LOG_website

# Run a sitecheck --check
echo "" | tee -a $LOG_website
echo "Performing an md5sum check on /srv/http ..." | tee -a $LOG_website
/home/$USER/bin/Website/CHECKSUMS/sitecheck --check > /dev/null
if [ -s /home/$USER/bin/Website/CHECKSUMS/sitecheck-CHECKSUMS.md5.check.FAIL ];then
    echo "" | tee -a $LOG_website
    echo "Results of md5sum check are as follows:" | tee -a $LOG_website
    cat /home/$USER/bin/Website/CHECKSUMS/sitecheck-CHECKSUMS.md5.check.FAIL | tee -a $LOG_website
else
    echo "" | tee -a $LOG_website
    echo "Results of md5sum check are as follows: PASSED" | tee -a $LOG_website
fi
#echo "Pausing, press [Enter]" ; read pause

# Copy changed files and make log entries
echo "" | tee -a $LOG_website
echo "Running cp -auv $SOURCE/* $TARGET/" | tee -a $LOG_website
sudo chown -R www-data:www-data $DEV_ROOT
sudo cp -auv $SOURCE/* $TARGET/ | tee "$CHANGES"
sudo chown -R $DEV:$DEV $DEV_ROOT
echo "Copy completed." | tee -a $LOG_website

# Log the changes since this wasn't done during the copy
echo "" >> $LOG_website
echo "Files changed or added are as follows:" >> $LOG_website
echo "----------" >> $LOG_website
cat "$CHANGES" >> $LOG_website
echo "----------" >> $LOG_website

# Fix the changes file for use by ncftp routine
cat "$CHANGES" | cut -d"\`" -f"2" | cut -d"'" -f"1" | sort > temp.txt
mv temp.txt "$CHANGES"

# Finalize the log
echo "" | tee -a $LOG_website
echo "----------------------------------------" | tee -a $LOG_website
echo "Push $SOURCE to $TARGET completed." | tee -a $LOG_website
echo "----------------------------------------" | tee -a $LOG_website
#echo "Pausing, press [Enter]" ; read pause

#----------------------------------------
# If there were changes then update remote server and Charter
if [ -s "$CHANGES" ];then

    # Create an incremental backup
    $EXEDIR/incremental-backups

    #----------------------------------------
    # Rsync files from $SERVER_ROOT to root@$REMOTE_SERVER:$SERVER_ROOT
    SOURCE="$SERVER_ROOT"
    TARGET="root@$REMOTE_SERVER:$SERVER_ROOT"
    EXCLUDE="--exclude blog/ \
    --exclude manual/ \
    --exclude phpMyAdmin/ \
    --exclude phpsysinfo/ \
    --exclude Visitors/ \
    --exclude Webalizer/ \
    --exclude sitemap.xml.gz "

    # Add to the log
    date=`date`
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "rsync $SOURCE to $TARGET" | tee -a $LOG_website
    echo "$date" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website

    # Perform rsync
    # Note: --bwlimit=960 means 960 KBps  (10 Mbps connection is 1280 KBps, X Mbsp *1024/8 = Y KBps, 1280 * 0.75 = 960)
    echo "" | tee -a $LOG_website
    echo "Using command:" | tee -a $LOG_website
    echo "rsync -savrz --bwlimit=960 --delay-updates $EXCLUDE $SOURCE/ $TARGET/" | tee -a $LOG_website
    sudo rsync -savrz --bwlimit=960 --delay-updates $EXCLUDE $SOURCE/ $TARGET/ | tee -a $LOG_website
    # !!! No --delete-after --delete-excluded !!!

    # Finalize the log
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "Push $SOURCE to $TARGET completed." | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    #echo "Pausing, press [Enter]" ; read pause

    #----------------------------------------
    # NCFTP website files from $DEV_ROOT to Charter
    SOURCE="$DEV_ROOT"
    TARGET="$SERVER_ROOT"

    # Add to the log for the Charter update
    date=`date`
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "ncftp $SOURCE to ftp://webpages.charter.net/leutzdave" | tee -a $LOG_website
    echo "$date" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website

    # Make the push-website.ncftp commands file
    echo "open Charter" > "$EXEDIR/push-website.ncftp"
    while read changed_file
    do
        # Obtain the directory of the changed file
        # Remove the filename.ext
        dir_tmp=`echo $changed_file | rev | cut -d"/" -f"2-" | rev`
        # Remove the leading "$DEV_ROOT/"
        dir=`echo $dir_tmp | sed 's/\/home\/david\/http//g'`

        # Change into correct directory
        if [ "$dir" != "" ];then
            if [ "$dir" != "$dir_old" ];then
                echo "cd $dir" >> "$EXEDIR/push-website.ncftp"
                dir_old="$dir"
            fi
        else
            echo "cd /" >> "$EXEDIR/push-website.ncftp"
            echo "cd /" >> $LOG_website
            dir_old="/"
        fi

        # put (upload) the file
        echo "put $changed_file" >> "$EXEDIR/push-website.ncftp"
    done < "$CHANGES"

    # Close out the file with an exit command
    echo "exit" >> "$EXEDIR/push-website.ncftp"

    # log the push-website.ncftp file
    echo "" | tee -a $LOG_website
    echo "Contents of $EXEDIR/push-website.ncftp" | tee -a $LOG_website
    echo "-----" | tee -a $LOG_website
    cat "$EXEDIR/push-website.ncftp" | tee -a $LOG_website
    echo "-----" | tee -a $LOG_website

    # Do the ncftp run
    echo "" | tee -a $LOG_website
    echo "ncftp transfer starting now ..." | tee -a $LOG_website
    ncftp < "$EXEDIR/push-website.ncftp" | tee -a $LOG_website
    echo "ncftp transfer ended." | tee -a $LOG_website

    # Finalize the log
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "ncftp $SOURCE to ftp://webpages.charter.net/leutzdave completed." | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "Pausing, press [Enter]" ; read pause

    # Server were just updated with a push, so run a new md5sum
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "Creating an md5sum for /srv/http ..." | tee -a $LOG_website
    /home/$USER/bin/Website/CHECKSUMS/sitecheck --create
    echo "Creating an md5sum for /home/$USER/http ..." | tee -a $LOG_website
    /home/$USER/bin/Website/CHECKSUMS/sitecheck-dev --create
    echo "md5sums completed." | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    #echo "Pausing, press [Enter]" ; read pause
else
    echo "" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "No changed or new files" | tee -a $LOG_website
    echo "----------------------------------------" | tee -a $LOG_website
    echo "Pausing, press [Enter]" ; read pause
fi