mainScript.sh

#!/bin/bash

# This script orchestrates an incremental MongoDB oplog backup followed by folder cleanup. 
# It first runs 'doIncrementalMongoOplogDump.sh' to perform an incremental backup of MongoDB's oplog,
# then executes 'deleteFoldersCountMoreThen200.sh' to delete old backup folders while maintaining at least 200.
# The script uses a lock mechanism to prevent concurrent execution, logs all output, 
# and ensures that both scripts run sequentially, only proceeding with the second if the first completes successfully.

echo "===================================="
echo "==============STARTING=============="
echo "===================================="

# Define log file directory and name
LOG_DIR="/mongo-oplog-dump/logs"
LOG_FILE="$LOG_DIR/$(date +%Y-%m-%d)_script_log.log"

# Ensure log directory exists
mkdir -p "$LOG_DIR"

# Redirect stdout and stderr to log file
exec &> >(tee -a "$LOG_FILE")


# Lock file path
lockfile="/tmp/incremental_oplog_mongodump_and_delete_old_folders.lock"

# Check if lock file exists
if [ -e "$lockfile" ]; then
    echo "Script is already running. Exiting. LockFile location: $lockfile"
    exit 1
fi

# Create lock file
touch "$lockfile"

cd /mongo-oplog-dump/  

# Path to the first script
script1_path="doIncrementalMongoOplogDump.sh"

# Path to the second script
script2_path="deleteFoldersCountMoreThen200.sh"

# Check if the first script exists and is executable
if [ -x "./$script1_path" ]; then
    echo "Running first script: $script1_path"
    "./$script1_path"
else
    echo "Error: First script $script1_path does not exist or is not executable."
    exit 1
fi

# Check if the first script ran successfully before proceeding
if [ $? -eq 0 ]; then
    # Check if the second script exists and is executable
    if [ -x "./$script2_path" ]; then
        echo "Running second script: $script2_path"
        "./$script2_path"
    else
        echo "Error: Second script $script2_path does not exist or is not executable."
        exit 1
    fi
else
    echo "First script failed. Not running the second script."
    exit 1
fi

 echo "Both scripts have been executed."

# Remove lock file at the end
rm "$lockfile"

echo "===================================="
echo "==============ENDING================"
echo "===================================="