sync_loc_rem_dir

#! /bin/bash
#
# A bash script that syncs a local directory's contents to a remote target.

# Colors for later:
red='\x1b[0;31m'
grn='\x1b[0;32m'
ncl='\x1b[0m'

#############################################################################
# A couple of handler functions
#############################################################################
function usage {
    echo -e "\nUSAGE:\n\tsync_loc_rem_dir <loc_dir> <rem_dir> <user> <host> <quiet>\n";
    echo -e "NOTE: Do NOT add a trailing '/' to paths.";
    exit;
}

function clean_rsync_verbose {
    # Simplify the rsync varbose output.
    # NOTE: if on linux, change \x1b in color defs red,grn,ncl to \e
    cat $1 | while read line; do
        if [[ $line == delet* ]]; then
            echo -e "${red}$line${ncl}"
        elif [[ $line == building* ]] || [[ $line == "" ]]; then
            :
        elif [[ $line == "sent "* ]] || [[ $line == "total size is"* ]]; then
            echo -e "\n"$line
        elif [[ $line == "cannot "* ]]; then
            echo -e "${red}$line${ncl}"
        else
            echo -e "${grn}creating or updating" $line${ncl}
        fi
    done
}

#############################################################################
# The script itself...
#############################################################################

# First check if help is required:
if [ $1 == "--help" ] || [ $# -ne 5 ]; then
    usage;
fi

# Next, do a dry run of the rsync:
mkdir $HOME/sync_temp;
rsync \
    -nrvc \
    --delete \
    --exclude "*.err" \
    --exclude "*.out" \
    --exclude ".*" \
    --exclude ".syncr" \
    --exclude "*.pyc" \
    --exclude "outputs" \
    $1 \
    $3@$4:$2 > \
    $HOME/sync_temp/message.txt;

# Print the changes to be made for review and approval:
echo -e "The following changes will be made:\n";
clean_rsync_verbose $HOME/sync_temp/message.txt;
echo -e "OK? [y/n]";
read ok;

# if OK, then commence with sync, else abort.
if [ $ok == "y" ]; then
    rsync \
        -rvc \
        --delete \
        --exclude "*.err" \
        --exclude "*.out" \
        --exclude ".*" \
        --exclude ".syncrconf*" \
        --exclude "*.pyc" \
        --exclude "outputs" \
        --progress \
        $1 \
        $3@$4:$2 > \
        $HOME/sync_temp/message.txt;
else
    echo -e "${red}Sync aborted.${ncl}";
    rm -r $HOME/sync_temp;
    exit;
fi

# Wrap-up
rc=$?
if [[ $rc == 0 ]]; then
    $5 && echo -e "${grn}\nDirectory\n\t$1\nsync'd with remote.${ncl}";
else
    echo -e "${red}\nSync of directory\n\t$1\nwith remote failed.${ncl}";
fi
rm -r $HOME/sync_temp;