sincro5

#!/bin/bash

CONFIGFILE="rsyncremote.conf"
SOURCELIST="source-files.list"
LOGFILE="rsyncremote.log"

#Colors
RED="\e[1;31m" #Red
GREEN="\e[1;32m" #Green
YELLOW="\e[1;33m" #Yellow
RESET="\e[0m" #Reset!

# NOTA DA RIMUOVERE: questa è una semplice funzione di stampa. Per ora non fa nulla di particolarmente straordinario, ma potrebbe essere utilizzata più in là per sopprimere agevolmente l'output nel terminale, se passata un'opzione come -silent
# Print on screen
printScreen() { echo -e $1; }

# Test if software installation and server connection are ok
testStuff () {
    # Check if source-files.list exists
    if [[ ! -e $SOURCELIST ]]; then
        printScreen $RED"Error: "$RESET"create and set $SOURCELIST first, then restart the script";
        exit 1
    fi

    # Check if inotify is installed
    if ! which inotifywait &> /dev/null; then
        printScreen $RED"Error: "$RESET"install inotify-tools first, then restart this script"
        exit 1
    fi

    # Check if unison is installed
    if ! which unison &> /dev/null; then
        printScreen $RED"Error: "$RESET"install unison first, then restart this script";
        exit 1
    fi

    # Check if ssh is installed
    if [[ $METHOD -eq 'ssh' && `! which ssh &> /dev/null` ]]; then
        printScreen $RED"Error: "$RESET"install ssh first, then restart this script";
        exit 1
    fi

    # Check if source-files.list exists
    if [[ ! -e "source-files.list" ]]; then
        printScreen $RED"Error: "$RESET"create and set source-files.list first, then restart the script";
        exit 1
    fi

    # Check if server is available
    if ! ping -c 1 $SERVER &> /dev/null; then
        printScreen $RED"Error: "$RESET"server is not available. Check your configuration first, then restart the script";
        exit 1
    fi

    # Check if a ssh connection is available and if unison is installed on server
    if [[ $METHOD -eq 'ssh' && `! ssh -p $PORT $USER@$SERVER unison -version &> /dev/null` ]]; then
        printScreen $RED"Error: "$RESET"impossible to login to ssh server or unison missing on the server. Check your server configuration first, then restart the script"
        exit 1
    fi
}

# Read source-files.list and set LPATH and LPATHOPTION variables
readSources() {
        # Instantiate variables
        LPATH=""
    LPATHOPTION=""
    # Read source-files.list
        while read line
        do
        # Check if source-files.list exists
        if [[ -e "$HOME/$line" ]]; then
            # Append to variables each path indicated
            LPATH="$LPATH$HOME/$line ";
                LPATHOPTION=$LPATHOPTION"-path "$line" ";
        else
            printScreen $RED"Error: "$RESET"source $line doesn't exists. Check your $SOURCELIST first, then restart the script";
            exit 1
        fi
        done < $SOURCELIST
    # Now the LPATH variable contains all path indicated and the LPATHOPTION variable contains all path with the -path options, so it can be used as option with unison
    # Example:
    # LPATH:    "/home/user/dir1 /home/user/dir2"
    # LPATHOPTIONS: "-path /home/user/dir1 -path /home/user/dir2"
}

# Start
syncDir() {
    unison $HOME ssh://$USER@$SERVER:$PORT/$RPATH $LPATHOPTION -logfile $LOGFILE $boptions -batch -auto
}

# SCRIPT STARTS HERE
# Check if config file exists
if [[ -e $CONFIGFILE ]]; then
    # Include config file
    source $CONFIGFILE
    # Perform test
    testStuff
    # Read source-files.list
    readSources
    # Finally, sync dirs
    syncDir
    while inotifywait -r -e modify -e create -e delete $LPATH &> /dev/null; do
        syncDir
    done
    exit 0
# If config file doesn't exists
else
    printScreen $RED"Error: "$RESET"create and set "$SOURCELIST" first, then restart the script";
    exit 1
fi