Principle:Ray project Ray Dependency Compilation
| Knowledge Sources | |
|---|---|
| Domains | Build_Systems, Dependency_Management |
| Last Updated | 2026-02-13 17:00 GMT |
Overview
A build process that compiles loosely-pinned dependency specifications into a single fully-pinned lockfile for reproducible builds.
Description
Dependency Compilation resolves unpinned or loosely-pinned package requirements (e.g., numpy>=1.20) into a single lockfile with exact versions (e.g., numpy==1.24.3). This ensures that all CI/CD builds and developer environments use identical dependency versions, preventing version drift and "works on my machine" issues.
The process typically involves:
- Gathering requirements from multiple source files
- Pre-installing key packages (numpy, torch) for resolution context
- Running a constraint solver (pip-compile) to resolve all transitive dependencies
- Post-processing to remove local installs and platform-specific suffixes
Usage
Use dependency compilation as the first step in a CI pipeline before building distributable artifacts. The resulting lockfile is committed to the repository and used by all subsequent build stages.
Theoretical Basis
Dependency compilation solves a constraint satisfaction problem (CSP). Given a set of version constraints, the solver finds an assignment of versions that satisfies all constraints simultaneously. The lockfile captures this solution for reproducibility.