Trepo

Trepo is a term used here to describe a hypothetical tree-structured repository system designed for organizing, versioning, and distributing hierarchical data and software artifacts. It aims to provide scalable, immutable storage with reproducible histories and fine-grained access control across teams and tools. The name reflects its core idea: a repository that organizes content as a tree of named trees, commits, and objects.

Architecture: Trepo centers on repositories composed of trees, commits, blobs, and metadata indices. Content-addressable storage enables deduplication and integrity checks, while a graph of object references captures the history. Backends may include local file systems, cloud storage, or specialized archival systems; access control and encryption are applied at the object level. A REST or GraphQL API, along with a command-line interface, supports programmatic manipulation and integration with CI/CD.

Features: Versioning with immutable commits, branching, and tagging. Efficient handling of large binary assets and multilevel directories. Partial cloning and shallow retrieval for scalable workflows. Fine-grained permissions, audit logs, and content integrity verification. Tools for diffs, merges, and reproducible builds, plus optional hooks for automation.

Usage and applications: Trepo is suited for software development, data science, and digital archives that require structured history and provenance. It supports collaborative workflows, dependency tracking, and reproducibility across environments.

Relationship to real systems: Trepo draws inspiration from distributed version control concepts and tree-based data models, but in this article it is presented as a conceptual framework rather than a specific released product.