Introduces query for contract build information

common/client-libs/validator-client/src/client.rs

@@ -10,9 +10,12 @@ use mixnet_contract::ContractSettingsParams;
 
 use crate::{validator_api, ValidatorClientError};
 use coconut_interface::{BlindSignRequestBody, BlindedSignatureResponse, VerificationKeyResponse};
-use mixnet_contract::{GatewayBond, MixNodeBond, MixnodeRewardingStatusResponse};
+use mixnet_contract::{GatewayBond, MixNodeBond};
 #[cfg(feature = "nymd-client")]
-use mixnet_contract::{RawDelegationData, RewardingIntervalResponse};
+use mixnet_contract::{
+    MixnetContractVersion, MixnodeRewardingStatusResponse, RawDelegationData,
+    RewardingIntervalResponse,
+};
 use url::Url;
 
 #[cfg(feature = "nymd-client")]
@@ -174,6 +177,13 @@ impl<C> Client<C> {
         Ok(self.nymd.get_contract_settings().await?)
     }
 
+    pub async fn get_mixnet_contract_version(&self) -> Result<MixnetContractVersion, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        Ok(self.nymd.get_mixnet_contract_version().await?)
+    }
+
     pub async fn get_current_rewarding_interval(
         &self,
     ) -> Result<RewardingIntervalResponse, ValidatorClientError>

common/client-libs/validator-client/src/nymd/mod.rs

@@ -14,10 +14,10 @@ use cosmrs::rpc::{Error as TendermintRpcError, HttpClientUrl};
 use cosmwasm_std::{Coin, Uint128};
 use mixnet_contract::{
     Addr, ContractSettingsParams, Delegation, ExecuteMsg, Gateway, GatewayOwnershipResponse,
-    IdentityKey, LayerDistribution, MixNode, MixOwnershipResponse, MixnodeRewardingStatusResponse,
-    PagedAllDelegationsResponse, PagedGatewayResponse, PagedMixDelegationsResponse,
-    PagedMixnodeResponse, PagedReverseMixDelegationsResponse, QueryMsg, RawDelegationData,
-    RewardingIntervalResponse,
+    IdentityKey, LayerDistribution, MixNode, MixOwnershipResponse, MixnetContractVersion,
+    MixnodeRewardingStatusResponse, PagedAllDelegationsResponse, PagedGatewayResponse,
+    PagedMixDelegationsResponse, PagedMixnodeResponse, PagedReverseMixDelegationsResponse,
+    QueryMsg, RawDelegationData, RewardingIntervalResponse,
 };
 use serde::Serialize;
 use std::collections::HashMap;
@@ -218,6 +218,16 @@ impl<C> NymdClient<C> {
             .await
     }
 
+    pub async fn get_mixnet_contract_version(&self) -> Result<MixnetContractVersion, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetContractVersion {};
+        self.client
+            .query_contract_smart(self.contract_address()?, &request)
+            .await
+    }
+
     pub async fn get_current_rewarding_interval(
         &self,
     ) -> Result<RewardingIntervalResponse, NymdError>

common/mixnet-contract/src/msg.rs

@@ -61,6 +61,7 @@ pub enum ExecuteMsg {
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
 #[serde(rename_all = "snake_case")]
 pub enum QueryMsg {
+    GetContractVersion {},
     GetMixNodes {
         limit: Option<u32>,
         start_after: Option<IdentityKey>,

common/mixnet-contract/src/types.rs

@@ -97,6 +97,27 @@ pub struct MixnodeRewardingStatusResponse {
     pub status: Option<RewardingStatus>,
 }
 
+#[derive(Debug, Serialize, Deserialize)]
+pub struct MixnetContractVersion {
+    // VERGEN_BUILD_TIMESTAMP
+    pub build_timestamp: String,
+
+    // VERGEN_BUILD_SEMVER
+    pub build_version: String,
+
+    // VERGEN_GIT_SHA
+    pub commit_sha: String,
+
+    // VERGEN_GIT_COMMIT_TIMESTAMP
+    pub commit_timestamp: String,
+
+    // VERGEN_GIT_BRANCH
+    pub commit_branch: String,
+
+    // VERGEN_RUSTC_SEMVER
+    pub rustc_version: String,
+}
+
 // type aliases for better reasoning about available data
 pub type IdentityKey = String;
 pub type IdentityKeyRef<'a> = &'a str;