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The Ultimate Project Layout Reference

This reference outlines a robust file system layout for enterprise-grade software projects. It provides a blueprint for structuring source code to achieve a modular, maintainable architecture.

The layout accounts for complex requirements such as multiple transport types (HTTP, WebSockets, CLI), varied data encodings, and multi-tenancy configurations where specific clients require custom database extensions. While few projects require every directory presented here simultaneously, this guide serves as a comprehensive map for placing code and resources correctly. It also guides you on how to scale down the layout for smaller projects below the full layout.

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SQLite Cache Schema

This schema provides a ready-to-use structure for caching different data types.

Types

Immutable

It efficiently stores and retrieves immutable binary and textual data, accessed by a textual key. Use the cache_blob and cache_text tables for this purpose.

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#!/bin/bash

# Usage: ./trim-icalendar-ics foo-bar.ics 2024 06
# Removes all events before 2024 and month May (or keeps everything from May 2024 onwards)
# and saves the remaining events into the file foo-bar.ics.out

# Note: current working directory must be the one where the ics file resides!

# Note for Mac and BSD users: this script requires the GNU version of csplit and sed!

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# file_entropy.py
#
# Shannon Entropy of a file
# = minimum average number of bits per character
# required for encoding (compressing) the file
#
# So the theoretical limit (in bytes) for data compression:
# Shannon Entropy of the file * file size (in bytes) / 8
# (Assuming the file is a string of byte-size (UTF-8?) characters
# because if not then the Shannon Entropy value would be different.)

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/**
 * Written in Typescript (v3+).
 *
 * Dependencies:
 *     - rxjs >= 6
 *     - firebase-tools >= 6
 *
 * Have fun!
 *
 */