Sync local directory to remote directory using rsync

rsync.sh

#!/bin/bash

# Function to display usage
usage() {
    echo "USAGE: $0 <local_dir> <user@remote_ip> <remote_dir>"
    echo "EXAMPLE: $0 . [email protected] /home/user/tools"
    exit 1
}

# Check if help option is provided
if [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
    usage
fi

# Check if the number of arguments is not equal to 3
if [ "$#" -ne 3 ]; then
    usage
fi

LOCAL_DIR=$1
REMOTE_HOST=$2
REMOTE_DIR=$3

# Ensure local directory has trailing slash for rsync
LOCAL_DIR="${LOCAL_DIR%/}/"

# Check if local directory exists
if [ ! -d "$LOCAL_DIR" ]; then
    echo "ERROR: Local directory $LOCAL_DIR does not exist."
    exit 1
fi

# Check if .git and .gitignore exist in the local directory
if [ ! -d "$LOCAL_DIR/.git" ]; then
    echo "Warning: .git directory does not exist in $LOCAL_DIR"
fi

EXCLUDE_FROM_OPTION=""
if [ -f "$LOCAL_DIR/.gitignore" ]; then
    EXCLUDE_FROM_OPTION="--exclude-from=$LOCAL_DIR/.gitignore"
else
    echo "Warning: .gitignore file does not exist in $LOCAL_DIR"
fi

# Sync the local directory to the remote directory
echo "Syncing from $LOCAL_DIR to $REMOTE_HOST:$REMOTE_DIR"
rsync -avz --exclude '.git' --exclude '.DS_Store' $EXCLUDE_FROM_OPTION \
    "$LOCAL_DIR" \
    "$REMOTE_HOST:$REMOTE_DIR" \
    --delete

if [ $? -eq 0 ]; then
    echo "Sync completed successfully"
else
    echo "Sync failed"
fi