Repo health: modernize deps, security, tests, docs

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+
+[*.{yml,yaml,json}]
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

.env.example

@@ -0,0 +1,6 @@
+# Azure Blob Storage credentials (never commit real values)
+AZURE_STORAGE_ACCOUNT_NAME=your-storage-account-name
+AZURE_STORAGE_ACCOUNT_KEY=your-storage-account-key
+
+# File extension to totalize (e.g. .vhd, .png, or vhd)
+FILE_TYPE=.vhd

.github/dependabot.yml

@@ -0,0 +1,18 @@
+version: 2
+updates:
+  - package-ecosystem: pip
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 10
+    groups:
+      dev-dependencies:
+        dependency-type: development
+        patterns:
+          - "*"
+
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 5

.github/workflows/ci.yml

@@ -0,0 +1,41 @@
+name: CI
+
+on:
+  push:
+    branches: [master, main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.12", "3.13"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: pip
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools
+          pip install -r requirements.lock
+          pip install -e . --no-deps
+
+      - name: Ruff lint
+        run: ruff check .
+
+      - name: Ruff format check
+        run: ruff format --check .
+
+      - name: Run tests
+        run: pytest --cov=filetype_size --cov-report=term-missing

.gitignore

@@ -0,0 +1,52 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Virtual environments
+.venv/
+venv/
+ENV/
+
+# Testing / coverage
+.pytest_cache/
+.coverage
+htmlcov/
+.mypy_cache/
+.ruff_cache/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Secrets / local config
+.env
+.env.*
+!.env.example
+
+# Logs
+*.log

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Joel Shearon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,4 +1,104 @@
 # FileTypeSizeAzureStoragePython
 
-For helping with determining total byte size of certain file types in Azure Storage
-Ex. after providing your storage account name and key, you could type in .vhd and it would return total bytes of all vhd files in your storage account
+[![CI](https://github.com/hippi345/FileTypeSizeAzureStoragePython/actions/workflows/ci.yml/badge.svg)](https://github.com/hippi345/FileTypeSizeAzureStoragePython/actions/workflows/ci.yml)
+[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
+
+Calculate the **total byte size** of blobs matching a file extension across all containers in an Azure Storage account—for example, sum every `.vhd` or `.png` in the account.
+
+The tool uses the current [Azure Storage Blob SDK for Python](https://learn.microsoft.com/en-us/python/api/azure-storage-blob/) (`azure-storage-blob` v12+). Credentials are read from the environment or interactive prompts; they are never stored in the repository.
+
+## Features
+
+- Lists every container and blob (name and size) in the storage account
+- Totals sizes for blobs whose names end with your chosen extension (e.g. `.vhd`)
+- Supports non-interactive runs via environment variables
+- Offline unit tests with mocked Azure clients
+
+## Requirements
+
+- Python **3.12+**
+- An Azure Storage account with account name and key (or use a connection string pattern via env vars above)
+
+## Setup
+
+```bash
+git clone https://github.com/hippi345/FileTypeSizeAzureStoragePython.git
+cd FileTypeSizeAzureStoragePython
+python3 -m venv .venv
+source .venv/bin/activate   # Windows: .venv\Scripts\activate
+pip install -e ".[dev]"
+```
+
+Copy `.env.example` to `.env` and fill in values locally (`.env` is gitignored).
+
+## Configuration
+
+| Variable | Description |
+| -------- | ----------- |
+| `AZURE_STORAGE_ACCOUNT_NAME` | Storage account name |
+| `AZURE_STORAGE_ACCOUNT_KEY` | Storage account access key |
+| `FILE_TYPE` | Extension to match (e.g. `.vhd` or `vhd`) |
+
+If any variable is missing, the program prompts for it on stdin.
+
+## Usage
+
+**With environment variables:**
+
+```bash
+export AZURE_STORAGE_ACCOUNT_NAME=myaccount
+export AZURE_STORAGE_ACCOUNT_KEY='...'
+export FILE_TYPE=.vhd
+python main.py
+```
+
+**Console script (after install):**
+
+```bash
+filetype-size-azure
+```
+
+**Interactive (no env vars):**
+
+```bash
+python main.py
+```
+
+Example output:
+
+```
+Welcome to the file size calculator for Azure Storage on Python
+Printing out containers:
+     my-container:
+Blob name: backups/disk.vhd
+Blob size: 1073741824
+Total size of .vhd files: 1073741824
+```
+
+## Running tests
+
+Tests run fully offline with mocked Azure APIs:
+
+```bash
+ruff check .
+ruff format --check .
+pytest --cov=filetype_size
+```
+
+## Project structure
+
+```
+├── filetype_size/
+│   ├── azure_client.py   # BlobServiceClient helpers
+│   ├── calculator.py     # Extension matching and totals
+│   └── cli.py            # Prompts / env / output
+├── main.py               # Entry point
+├── tests/
+├── pyproject.toml        # Package metadata and tool config
+├── requirements.txt      # Runtime pins (source)
+└── requirements.lock     # Locked versions for CI/reproducible installs
+```
+
+## License
+
+MIT License — see [LICENSE](LICENSE) (Copyright © 2026 Joel Shearon).

SECURITY.md

@@ -0,0 +1,24 @@
+# Security Policy
+
+## Supported versions
+
+| Version | Supported |
+| ------- | --------- |
+| 2.x     | Yes       |
+
+## Reporting a vulnerability
+
+If you discover a security issue, please **do not** open a public GitHub issue with sensitive details.
+
+1. Open a private security advisory on GitHub for this repository, or contact the repository owner directly.
+2. Include steps to reproduce, impact, and any suggested fix.
+
+## Secrets and credentials
+
+- Never commit storage account keys, connection strings, or SAS tokens to the repository.
+- Configure credentials via environment variables (`AZURE_STORAGE_ACCOUNT_NAME`, `AZURE_STORAGE_ACCOUNT_KEY`) or a local `.env` file that is listed in `.gitignore`.
+- Rotate any credential that may have been exposed in git history or logs.
+
+## Dependencies
+
+Dependency updates are managed via Dependabot. Keep `azure-storage-blob` and other packages current to receive security fixes from upstream.

filetype_size/__init__.py

@@ -0,0 +1,3 @@
+"""Calculate blob sizes by file extension in Azure Blob Storage."""
+
+__version__ = "2.0.0"

filetype_size/azure_client.py

@@ -0,0 +1,35 @@
+"""Azure Blob Storage client helpers."""
+
+from __future__ import annotations
+
+from collections.abc import Iterator
+
+from azure.storage.blob import BlobServiceClient
+
+from filetype_size.calculator import BlobInfo
+
+
+class ListedBlob:
+    """Adapter exposing name and size for calculator protocols."""
+
+    def __init__(self, name: str, size: int) -> None:
+        self.name = name
+        self.size = size
+
+
+def create_blob_service_client(account_name: str, account_key: str) -> BlobServiceClient:
+    account_url = f"https://{account_name}.blob.core.windows.net"
+    return BlobServiceClient(account_url=account_url, credential=account_key)
+
+
+def iter_containers_with_blobs(
+    client: BlobServiceClient,
+) -> Iterator[tuple[str, list[BlobInfo]]]:
+    """List every container and its blobs (name + size)."""
+    for container in client.list_containers():
+        name = container.name
+        container_client = client.get_container_client(name)
+        blobs: list[BlobInfo] = [
+            ListedBlob(blob.name, blob.size) for blob in container_client.list_blobs()
+        ]
+        yield name, blobs