# CosmWasm Starter Pack This is a template to build smart contracts in Rust to run inside a [Cosmos SDK](https://github.com/cosmos/cosmos-sdk) module on all chains that enable it. To understand the framework better, please read the overview in the [cosmwasm repo](https://github.com/CosmWasm/cosmwasm/blob/master/README.md), and dig into the [cosmwasm docs](https://www.cosmwasm.com). This assumes you understand the theory and just want to get coding. ## Creating a new repo from template Assuming you have a recent version of rust and cargo (v1.58.1+) installed (via [rustup](https://rustup.rs/)), then the following should get you a new repo to start a contract: Install [cargo-generate](https://github.com/ashleygwilliams/cargo-generate) and cargo-run-script. Unless you did that before, run this line now: ```sh cargo install cargo-generate --features vendored-openssl cargo install cargo-run-script ``` Now, use it to create your new contract. Go to the folder in which you want to place it and run: **Latest: 1.0.0-beta6** ```sh cargo generate --git https://github.com/CosmWasm/cw-template.git --name PROJECT_NAME ```` **Older Version** Pass version as branch flag: ```sh cargo generate --git https://github.com/CosmWasm/cw-template.git --branch --name PROJECT_NAME ```` Example: ```sh cargo generate --git https://github.com/CosmWasm/cw-template.git --branch 0.16 --name PROJECT_NAME ``` You will now have a new folder called `PROJECT_NAME` (I hope you changed that to something else) containing a simple working contract and build system that you can customize. ## Create a Repo After generating, you have a initialized local git repo, but no commits, and no remote. Go to a server (eg. github) and create a new upstream repo (called `YOUR-GIT-URL` below). Then run the following: ```sh # this is needed to create a valid Cargo.lock file (see below) cargo check git branch -M main git add . git commit -m 'Initial Commit' git remote add origin YOUR-GIT-URL git push -u origin main ``` ## CI Support We have template configurations for both [GitHub Actions](.github/workflows/Basic.yml) and [Circle CI](.circleci/config.yml) in the generated project, so you can get up and running with CI right away. One note is that the CI runs all `cargo` commands with `--locked` to ensure it uses the exact same versions as you have locally. This also means you must have an up-to-date `Cargo.lock` file, which is not auto-generated. The first time you set up the project (or after adding any dep), you should ensure the `Cargo.lock` file is updated, so the CI will test properly. This can be done simply by running `cargo check` or `cargo unit-test`. ## Using your project Once you have your custom repo, you should check out [Developing](./Developing.md) to explain more on how to run tests and develop code. Or go through the [online tutorial](https://docs.cosmwasm.com/) to get a better feel of how to develop. [Publishing](./Publishing.md) contains useful information on how to publish your contract to the world, once you are ready to deploy it on a running blockchain. And [Importing](./Importing.md) contains information about pulling in other contracts or crates that have been published. Please replace this README file with information about your specific project. You can keep the `Developing.md` and `Publishing.md` files as useful referenced, but please set some proper description in the README. ## Gitpod integration [Gitpod](https://www.gitpod.io/) container-based development platform will be enabled on your project by default. Workspace contains: - **rust**: for builds - [wasmd](https://github.com/CosmWasm/wasmd): for local node setup and client - **jq**: shell JSON manipulation tool Follow [Gitpod Getting Started](https://www.gitpod.io/docs/getting-started) and launch your workspace.