Azure Blob Existence Checker

Overview

A Python tool to efficiently check the existence of files in Azure Blob Storage using a CSV input file.

Prerequisites

• Python 3.7+
• Azure Storage account connection string
• CSV file with a 'FILENAME' column

Installation

Option 1: Install from GitHub (Recommended)

# Clone the repository
git clone https://github.com/dannotes/azure-blob-existence-checker.git

# Navigate to the project directory
cd azure-blob-existence-checker

# Create a virtual environment (optional but recommended)
python3 -m venv venv
source venv/bin/activate  # On Windows, use `venv\Scripts\activate`

# Install the package
pip install -r requirements.txt

Option 2: Direct pip install

pip install git+https://github.com/dannotes/azure-blob-existence-checker.git

Usage

Basic Usage

blob_checker.py "YOUR_CONNECTION_STRING" "CONTAINER_NAME" "path/to/input.csv"

Export Results to CSV

blob_checker.py "YOUR_CONNECTION_STRING" "CONTAINER_NAME" "path/to/input.csv" -export csv

Input CSV Format

Your input CSV must have a column named 'FILENAME' containing the blob names to check.

Example:

FILENAME,OtherColumn1,OtherColumn2
file1.txt,Data1,Value1
file2.jpg,Data2,Value2

Results

Features

• Concurrent blob existence checking
• Colorful terminal output
• Detailed summary of existing and non-existing blobs
• Optional CSV export of results
• Progress tracking

Requirements

• azure-storage-blob
• tabulate
• colorama

Troubleshooting

• Ensure your connection string is correct
• Verify container name matches exactly
• Check that the CSV file is properly formatted