Cargo Features
substrate-wasm-builder has no features set by default.
[dependencies]
substrate-wasm-builder = { version = "24.0.0", features = ["metadata-hash"] }
- metadata-hash = array-bytes, codec, frame-metadata, merkleized-metadata, sc-executor, sp-core, sp-io, sp-tracing, sp-version
-
Enable support for generating the metadata hash.
To generate the metadata hash the runtime is build once, executed to build the metadata and then build a second time with the
RUNTIME_METADATA_HASH
environment variable set. The environment variable then contains the hash and can be used inside the runtime.This pulls in quite a lot of dependencies and thus, is disabled by default.
Features from optional dependencies
In crates that don't use the dep:
syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.
- merkleized-metadata metadata-hash?
-
Enables merkleized-metadata
Dependencies required for the
metadata-hash
feature. - sc-executor metadata-hash?
- sp-core metadata-hash?
- sp-io metadata-hash?
- sp-version metadata-hash?
- frame-metadata metadata-hash?
- codec metadata-hash?
-
Enables parity-scale-codec
- array-bytes metadata-hash?
- sp-tracing metadata-hash?