Add Virus contract

.circleci/config.yml

@@ -65,6 +65,7 @@ workflows:
       - contract_queue
       - contract_reflect
       - contract_staking
+      - contract_virus
       - fmt
       - fmt_extra
       - clippy:
@@ -138,6 +139,9 @@ jobs:
           keys:
             - v4-arm64-contracts-rust:1.60.0-{{ checksum "contracts/crypto-verify/Cargo.lock" }}-{{ checksum "contracts/hackatom/Cargo.lock" }}-{{ checksum "contracts/queue/Cargo.lock" }}-{{ checksum "contracts/reflect/Cargo.lock" }}-{{ checksum "contracts/staking/Cargo.lock" }}
             - v4-arm64-contracts-rust:1.60.0-
+      # Test a few contracts that do something potentially interesting in the VM
+      # to test contract execution on ARM64.
+      # No need to add all contracts here.
       - run:
           name: "contracts/crypto-verify: integration-test"
           working_directory: ~/project/contracts/crypto-verify
@@ -761,6 +765,33 @@ jobs:
             - target/wasm32-unknown-unknown/release/deps
           key: cargocache-v2-contract_staking-rust:1.60.0-{{ checksum "Cargo.lock" }}
 
+  contract_virus:
+    docker:
+      - image: rust:1.60.0
+    environment:
+      RUST_BACKTRACE: 1
+    working_directory: ~/cosmwasm/contracts/virus
+    steps:
+      - checkout:
+          path: ~/cosmwasm
+      - run:
+          name: Version information
+          command: rustc --version; cargo --version; rustup --version
+      - restore_cache:
+          keys:
+            - cargocache-v2-contract_virus-rust:1.60.0-{{ checksum "Cargo.lock" }}
+      - check_contract
+      - save_cache:
+          paths:
+            - /usr/local/cargo/registry
+            - target/debug/.fingerprint
+            - target/debug/build
+            - target/debug/deps
+            - target/wasm32-unknown-unknown/release/.fingerprint
+            - target/wasm32-unknown-unknown/release/build
+            - target/wasm32-unknown-unknown/release/deps
+          key: cargocache-v2-contract_virus-rust:1.60.0-{{ checksum "Cargo.lock" }}
+
   fmt:
     docker:
       - image: rust:1.60.0

contracts/README.md

@@ -36,6 +36,8 @@ Introducing the development contracts in the order they were created.
 9. **cyberpunk** is an attempt to cleanup hackatom and make writing runtime
    tests (cosmwasm-vm/wamsmvm) easier by avoid the need for the escrow setup
    that hackatom has.
+10. **virus** is a contract that reproduces itself and does nothing useful
+    beyond that, showing how to use instantiate2 from a contract.
 
 ## Optimized builds
 
@@ -92,6 +94,11 @@ docker run --rm -v "$(pwd)":/code \
   --mount type=volume,source="devcontract_cache_staking",target=/code/contracts/staking/target \
   --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
   cosmwasm/rust-optimizer:0.12.9 ./contracts/staking
+
+docker run --rm -v "$(pwd)":/code \
+  --mount type=volume,source="devcontract_cache_virus",target=/code/contracts/virus/target \
+  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
+  cosmwasm/rust-optimizer:0.12.9 ./contracts/virus
 ```
 
 ## Entry points
@@ -107,3 +114,4 @@ points in order to demonstrate and test the flexibility we have.
 | queue       | yes         | yes           |
 | reflect     | yes         | no            |
 | staking     | yes         | no            |
+| virus       | no          | no            |

contracts/virus/.cargo/config

@@ -0,0 +1,6 @@
+[alias]
+wasm = "build --release --lib --target wasm32-unknown-unknown"
+wasm-debug = "build --lib --target wasm32-unknown-unknown"
+unit-test = "test --lib"
+integration-test = "test --test integration"
+schema = "run --bin schema"