363 lines
11 KiB
Go
363 lines
11 KiB
Go
package app
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import (
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"fmt"
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"io"
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"os"
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"sort"
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bam "github.com/cosmos/cosmos-sdk/baseapp"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/auth"
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"github.com/cosmos/cosmos-sdk/x/bank"
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distr "github.com/cosmos/cosmos-sdk/x/distribution"
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"github.com/cosmos/cosmos-sdk/x/gov"
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"github.com/cosmos/cosmos-sdk/x/mint"
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"github.com/cosmos/cosmos-sdk/x/params"
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"github.com/cosmos/cosmos-sdk/x/slashing"
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"github.com/cosmos/cosmos-sdk/x/stake"
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abci "github.com/tendermint/tendermint/abci/types"
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cmn "github.com/tendermint/tendermint/libs/common"
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dbm "github.com/tendermint/tendermint/libs/db"
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"github.com/tendermint/tendermint/libs/log"
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)
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const (
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appName = "GaiaApp"
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// DefaultKeyPass contains the default key password for genesis transactions
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DefaultKeyPass = "12345678"
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)
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// default home directories for expected binaries
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var (
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DefaultCLIHome = os.ExpandEnv("$HOME/.gaiacli")
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DefaultNodeHome = os.ExpandEnv("$HOME/.gaiad")
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)
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// Extended ABCI application
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type GaiaApp struct {
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*bam.BaseApp
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cdc *codec.Codec
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// keys to access the substores
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keyMain *sdk.KVStoreKey
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keyAccount *sdk.KVStoreKey
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keyStake *sdk.KVStoreKey
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tkeyStake *sdk.TransientStoreKey
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keySlashing *sdk.KVStoreKey
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keyMint *sdk.KVStoreKey
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keyDistr *sdk.KVStoreKey
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tkeyDistr *sdk.TransientStoreKey
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keyGov *sdk.KVStoreKey
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keyFeeCollection *sdk.KVStoreKey
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keyParams *sdk.KVStoreKey
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tkeyParams *sdk.TransientStoreKey
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// Manage getting and setting accounts
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accountKeeper auth.AccountKeeper
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feeCollectionKeeper auth.FeeCollectionKeeper
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bankKeeper bank.Keeper
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stakeKeeper stake.Keeper
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slashingKeeper slashing.Keeper
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mintKeeper mint.Keeper
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distrKeeper distr.Keeper
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govKeeper gov.Keeper
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paramsKeeper params.Keeper
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}
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// NewGaiaApp returns a reference to an initialized GaiaApp.
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func NewGaiaApp(logger log.Logger, db dbm.DB, traceStore io.Writer, baseAppOptions ...func(*bam.BaseApp)) *GaiaApp {
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cdc := MakeCodec()
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bApp := bam.NewBaseApp(appName, logger, db, auth.DefaultTxDecoder(cdc), baseAppOptions...)
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bApp.SetCommitMultiStoreTracer(traceStore)
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var app = &GaiaApp{
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BaseApp: bApp,
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cdc: cdc,
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keyMain: sdk.NewKVStoreKey("main"),
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keyAccount: sdk.NewKVStoreKey("acc"),
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keyStake: sdk.NewKVStoreKey("stake"),
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tkeyStake: sdk.NewTransientStoreKey("transient_stake"),
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keyMint: sdk.NewKVStoreKey("mint"),
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keyDistr: sdk.NewKVStoreKey("distr"),
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tkeyDistr: sdk.NewTransientStoreKey("transient_distr"),
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keySlashing: sdk.NewKVStoreKey("slashing"),
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keyGov: sdk.NewKVStoreKey("gov"),
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keyFeeCollection: sdk.NewKVStoreKey("fee"),
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keyParams: sdk.NewKVStoreKey("params"),
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tkeyParams: sdk.NewTransientStoreKey("transient_params"),
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}
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// define the accountKeeper
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app.accountKeeper = auth.NewAccountKeeper(
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app.cdc,
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app.keyAccount, // target store
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auth.ProtoBaseAccount, // prototype
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)
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// add handlers
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app.bankKeeper = bank.NewBaseKeeper(app.accountKeeper)
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app.feeCollectionKeeper = auth.NewFeeCollectionKeeper(
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app.cdc,
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app.keyFeeCollection,
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)
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app.paramsKeeper = params.NewKeeper(
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app.cdc,
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app.keyParams, app.tkeyParams,
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)
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stakeKeeper := stake.NewKeeper(
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app.cdc,
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app.keyStake, app.tkeyStake,
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app.bankKeeper, app.paramsKeeper.Subspace(stake.DefaultParamspace),
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stake.DefaultCodespace,
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)
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app.mintKeeper = mint.NewKeeper(app.cdc, app.keyMint,
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app.paramsKeeper.Subspace(mint.DefaultParamspace),
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&stakeKeeper, app.feeCollectionKeeper,
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)
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app.distrKeeper = distr.NewKeeper(
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app.cdc,
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app.keyDistr,
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app.paramsKeeper.Subspace(distr.DefaultParamspace),
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app.bankKeeper, &stakeKeeper, app.feeCollectionKeeper,
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distr.DefaultCodespace,
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)
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app.slashingKeeper = slashing.NewKeeper(
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app.cdc,
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app.keySlashing,
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&stakeKeeper, app.paramsKeeper.Subspace(slashing.DefaultParamspace),
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slashing.DefaultCodespace,
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)
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app.govKeeper = gov.NewKeeper(
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app.cdc,
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app.keyGov,
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app.paramsKeeper, app.paramsKeeper.Subspace(gov.DefaultParamspace), app.bankKeeper, &stakeKeeper,
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gov.DefaultCodespace,
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)
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// register the staking hooks
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// NOTE: stakeKeeper above are passed by reference,
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// so that it can be modified like below:
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app.stakeKeeper = *stakeKeeper.SetHooks(
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NewHooks(app.distrKeeper.Hooks(), app.slashingKeeper.Hooks()))
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// register message routes
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app.Router().
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AddRoute("bank", bank.NewHandler(app.bankKeeper)).
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AddRoute("stake", stake.NewHandler(app.stakeKeeper)).
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AddRoute("distr", distr.NewHandler(app.distrKeeper)).
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AddRoute("slashing", slashing.NewHandler(app.slashingKeeper)).
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AddRoute("gov", gov.NewHandler(app.govKeeper))
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app.QueryRouter().
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AddRoute("gov", gov.NewQuerier(app.govKeeper)).
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AddRoute("stake", stake.NewQuerier(app.stakeKeeper, app.cdc))
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// initialize BaseApp
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app.MountStoresIAVL(app.keyMain, app.keyAccount, app.keyStake, app.keyMint, app.keyDistr,
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app.keySlashing, app.keyGov, app.keyFeeCollection, app.keyParams)
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app.SetInitChainer(app.initChainer)
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app.SetBeginBlocker(app.BeginBlocker)
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app.SetAnteHandler(auth.NewAnteHandler(app.accountKeeper, app.feeCollectionKeeper))
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app.MountStoresTransient(app.tkeyParams, app.tkeyStake, app.tkeyDistr)
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app.SetEndBlocker(app.EndBlocker)
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err := app.LoadLatestVersion(app.keyMain)
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if err != nil {
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cmn.Exit(err.Error())
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}
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return app
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}
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// custom tx codec
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func MakeCodec() *codec.Codec {
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var cdc = codec.New()
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bank.RegisterCodec(cdc)
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stake.RegisterCodec(cdc)
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distr.RegisterCodec(cdc)
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slashing.RegisterCodec(cdc)
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gov.RegisterCodec(cdc)
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auth.RegisterCodec(cdc)
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sdk.RegisterCodec(cdc)
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codec.RegisterCrypto(cdc)
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return cdc
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}
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// application updates every end block
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func (app *GaiaApp) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
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tags := slashing.BeginBlocker(ctx, req, app.slashingKeeper)
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// distribute rewards from previous block
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distr.BeginBlocker(ctx, req, app.distrKeeper)
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// mint new tokens for this new block
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mint.BeginBlocker(ctx, app.mintKeeper)
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return abci.ResponseBeginBlock{
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Tags: tags.ToKVPairs(),
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}
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}
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// application updates every end block
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// nolint: unparam
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func (app *GaiaApp) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
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tags := gov.EndBlocker(ctx, app.govKeeper)
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validatorUpdates := stake.EndBlocker(ctx, app.stakeKeeper)
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app.assertRuntimeInvariants()
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return abci.ResponseEndBlock{
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ValidatorUpdates: validatorUpdates,
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Tags: tags,
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}
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}
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// initialize store from a genesis state
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func (app *GaiaApp) initFromGenesisState(ctx sdk.Context, genesisState GenesisState) []abci.ValidatorUpdate {
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// sort by account number to maintain consistency
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sort.Slice(genesisState.Accounts, func(i, j int) bool {
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return genesisState.Accounts[i].AccountNumber < genesisState.Accounts[j].AccountNumber
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})
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// load the accounts
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for _, gacc := range genesisState.Accounts {
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acc := gacc.ToAccount()
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acc.AccountNumber = app.accountKeeper.GetNextAccountNumber(ctx)
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app.accountKeeper.SetAccount(ctx, acc)
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}
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// load the initial stake information
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validators, err := stake.InitGenesis(ctx, app.stakeKeeper, genesisState.StakeData)
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if err != nil {
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panic(err) // TODO find a way to do this w/o panics
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}
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// initialize module-specific stores
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auth.InitGenesis(ctx, app.feeCollectionKeeper, genesisState.AuthData)
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slashing.InitGenesis(ctx, app.slashingKeeper, genesisState.SlashingData, genesisState.StakeData)
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gov.InitGenesis(ctx, app.govKeeper, genesisState.GovData)
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mint.InitGenesis(ctx, app.mintKeeper, genesisState.MintData)
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distr.InitGenesis(ctx, app.distrKeeper, genesisState.DistrData)
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// validate genesis state
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err = GaiaValidateGenesisState(genesisState)
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if err != nil {
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panic(err) // TODO find a way to do this w/o panics
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}
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if len(genesisState.GenTxs) > 0 {
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for _, genTx := range genesisState.GenTxs {
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var tx auth.StdTx
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err = app.cdc.UnmarshalJSON(genTx, &tx)
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if err != nil {
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panic(err)
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}
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bz := app.cdc.MustMarshalBinaryLengthPrefixed(tx)
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res := app.BaseApp.DeliverTx(bz)
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if !res.IsOK() {
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panic(res.Log)
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}
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}
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validators = app.stakeKeeper.ApplyAndReturnValidatorSetUpdates(ctx)
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}
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return validators
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}
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// custom logic for gaia initialization
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func (app *GaiaApp) initChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain {
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stateJSON := req.AppStateBytes
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// TODO is this now the whole genesis file?
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var genesisState GenesisState
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err := app.cdc.UnmarshalJSON(stateJSON, &genesisState)
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if err != nil {
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panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
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// return sdk.ErrGenesisParse("").TraceCause(err, "")
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}
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validators := app.initFromGenesisState(ctx, genesisState)
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// sanity check
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if len(req.Validators) > 0 {
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if len(req.Validators) != len(validators) {
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panic(fmt.Errorf("len(RequestInitChain.Validators) != len(validators) (%d != %d)",
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len(req.Validators), len(validators)))
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}
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sort.Sort(abci.ValidatorUpdates(req.Validators))
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sort.Sort(abci.ValidatorUpdates(validators))
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for i, val := range validators {
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if !val.Equal(req.Validators[i]) {
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panic(fmt.Errorf("validators[%d] != req.Validators[%d] ", i, i))
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}
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}
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}
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// assert runtime invariants
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app.assertRuntimeInvariants()
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return abci.ResponseInitChain{
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Validators: validators,
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}
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}
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// load a particular height
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func (app *GaiaApp) LoadHeight(height int64) error {
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return app.LoadVersion(height, app.keyMain)
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}
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//______________________________________________________________________________________________
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// Combined Staking Hooks
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type Hooks struct {
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dh distr.Hooks
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sh slashing.Hooks
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}
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func NewHooks(dh distr.Hooks, sh slashing.Hooks) Hooks {
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return Hooks{dh, sh}
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}
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var _ sdk.StakingHooks = Hooks{}
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// nolint
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func (h Hooks) OnValidatorCreated(ctx sdk.Context, valAddr sdk.ValAddress) {
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h.dh.OnValidatorCreated(ctx, valAddr)
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h.sh.OnValidatorCreated(ctx, valAddr)
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}
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func (h Hooks) OnValidatorModified(ctx sdk.Context, valAddr sdk.ValAddress) {
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h.dh.OnValidatorModified(ctx, valAddr)
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h.sh.OnValidatorModified(ctx, valAddr)
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}
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func (h Hooks) OnValidatorRemoved(ctx sdk.Context, consAddr sdk.ConsAddress, valAddr sdk.ValAddress) {
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h.dh.OnValidatorRemoved(ctx, consAddr, valAddr)
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h.sh.OnValidatorRemoved(ctx, consAddr, valAddr)
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}
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func (h Hooks) OnValidatorBonded(ctx sdk.Context, consAddr sdk.ConsAddress, valAddr sdk.ValAddress) {
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h.dh.OnValidatorBonded(ctx, consAddr, valAddr)
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h.sh.OnValidatorBonded(ctx, consAddr, valAddr)
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}
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func (h Hooks) OnValidatorPowerDidChange(ctx sdk.Context, consAddr sdk.ConsAddress, valAddr sdk.ValAddress) {
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h.dh.OnValidatorPowerDidChange(ctx, consAddr, valAddr)
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h.sh.OnValidatorPowerDidChange(ctx, consAddr, valAddr)
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}
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func (h Hooks) OnValidatorBeginUnbonding(ctx sdk.Context, consAddr sdk.ConsAddress, valAddr sdk.ValAddress) {
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h.dh.OnValidatorBeginUnbonding(ctx, consAddr, valAddr)
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h.sh.OnValidatorBeginUnbonding(ctx, consAddr, valAddr)
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}
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func (h Hooks) OnDelegationCreated(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) {
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h.dh.OnDelegationCreated(ctx, delAddr, valAddr)
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h.sh.OnDelegationCreated(ctx, delAddr, valAddr)
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}
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func (h Hooks) OnDelegationSharesModified(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) {
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h.dh.OnDelegationSharesModified(ctx, delAddr, valAddr)
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h.sh.OnDelegationSharesModified(ctx, delAddr, valAddr)
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}
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func (h Hooks) OnDelegationRemoved(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) {
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h.dh.OnDelegationRemoved(ctx, delAddr, valAddr)
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h.sh.OnDelegationRemoved(ctx, delAddr, valAddr)
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}
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