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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Michal Kucharczyk
50242a61d7
[`RococoGenesisExt`](https://github.com/paritytech/polkadot-sdk/blob/a414ea7515c9cdc81f1d12410e646afc148250e8/polkadot/node/service/src/chain_spec.rs#L152-L171) is removed. It was the hack to allow overwriting `EpochDurationInBlocks`. Removal of `RococGenesisExt` prevents from manipulating the state to change the runtime constants. Changes: - Environment variable which controls the `time::EpochDurationInBlocks` value was added: `ROCOCO_EPOCH_DURATION` (epoch duration will be set to the value of env), - `10,100,600` versions of rococo-runtime are built in CI and put into `polkadot-debug` docker image. `rococo-runtime` building examples: - to build runtime for `versi_staging_testnet` which had EpochDurationInBlocks set to 100: ``` ROCOCO_EPOCH_DURATION=100 cargo build --features=fast-runtime -p rococo-runtime ``` - to build runtime for `wococo_development` ``` ROCOCO_EPOCH_DURATION=10 cargo build --features=fast-runtime -p rococo-runtime ``` - to build `versi-staging` chain spec: ``` ROCOCO_EPOCH_DURATION=100 cargo run -p polkadot --features=fast-runtime -- build-spec --chain versi-staging --raw ``` - to build `wococo-dev` chain spec: ``` ROCOCO_EPOCH_DURATION=10 cargo run -p polkadot --features=fast-runtime -- build-spec --chain wococo-dev --raw ``` It is also possible to change the epoch duration by replacing the `code` field in the chain spec with the hex dump of pre-built runtime wasm blob (because the epoch duration is hard-coded into wasm blob). --------- Co-authored-by: Bastian Köcher <git@kchr.de>
Self built Docker image
The Polkadot repo contains several options to build Docker images for Polkadot.
This folder contains a self-contained image that does not require a Linux pre-built binary.
Instead, building the image is possible on any host having docker installed and will build Polkadot inside Docker. That also means that no Rust toolchain is required on the host machine for the build to succeed.