dcr/docs/dependencies-and-build/versioning-and-lock-file.md

Versioning & lock file

DCR generates dcr.lock when dependency resolution succeeds and at least one dependency exists.

What is stored

• Project entry (name, version, dependency names).
• One entry per resolved dependency:
  • name
  • version (from dependency dcr.toml, fallback 0.0.0)
  • source (path+...)
  • checksum (SHA-256 over dependency files, excluding nested target/).

Example shape

[[package]]
name = "my-app"
version = "0.1.0"
dependencies = ["fmt"]

[[package]]
name = "fmt"
version = "1.2.3"
source = "path+./third_party/fmt"
checksum = "..."

Notes

• dcr.lock is rewritten on successful dependency resolution.
• If [dependencies] is empty, lock generation is skipped.