Copy Options
SSI’s copy step has several options for controlling how files are copied and verified.
Built at 2026-06-08T20:58:34.
📦 Checksum Verification
Option: options = ["checksum"]
Verify file integrity using xxHash3 checksums. Detects copy failures and tampering.
Requires: A .xxh3 checksum file alongside the path.
⚡ Skip-by-Checksum
Option: options = ["skip-by-checksum"]
Skip copying files when the target already has a matching checksum. Can be 10–20× faster for unchanged files.
Use case: CI/CD caches, large binary assets.
🗂️ Flat Copy
Option: options = ["flat"]
Copy only top-level files from the source directory — subdirectories are skipped.
Use case: Deploying only the root files from a source tree.