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feat: update genesis_time upon genesis export [Experimental] #174

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feat: update genesis_time upon genesis export [Experimental] #174

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70edf5d
feat: update genesis_time upon genesis export
Jonathansumner Jun 5, 2024
d357ab1
fix: remove time rounding
Jonathansumner Jun 7, 2024
8cc8e1a
chore: amend loading blockstore
Jonathansumner Jun 10, 2024
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35 changes: 33 additions & 2 deletions server/export.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,13 +3,16 @@
// DONTCOVER

import (
"errors"
"fmt"

Check failure on line 7 in server/export.go

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File is not `gofumpt`-ed (gofumpt)
"os"

"github.com/spf13/cobra"
cfg "github.com/tendermint/tendermint/config"
tmjson "github.com/tendermint/tendermint/libs/json"
tmnode "github.com/tendermint/tendermint/node"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
"github.com/tendermint/tendermint/store"
tmtypes "github.com/tendermint/tendermint/types"
"os"

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"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/server/types"
Expand All @@ -22,6 +25,28 @@
FlagJailAllowedAddrs = "jail-allowed-addrs"
)

// GetLatestBlockHeaderFromDB returns the latest block header from the blockstore database
func GetLatestBlockHeaderFromDB() (*tmtypes.Header, error) {
// Load the blockstore
blockStoreDB, err := tmnode.DefaultDBProvider(&tmnode.DBContext{ID: "blockstore", Config: cfg.DefaultConfig()})
if err != nil {
return nil, err
}
defer blockStoreDB.Close()

blockStore := store.NewBlockStore(blockStoreDB)

// Get the latest block meta
latestHeight := blockStore.Height()
blockMeta := blockStore.LoadBlockMeta(latestHeight)

if blockMeta == nil {
return nil, errors.New("latest block metadata not found in blockstore")
}

return &blockMeta.Header, nil
}

// ExportCmd dumps app state to JSON.
func ExportCmd(appExporter types.AppExporter, defaultNodeHome string) *cobra.Command {
cmd := &cobra.Command{
Expand Down Expand Up @@ -77,6 +102,12 @@
return err
}

latestBlockHeader, err := GetLatestBlockHeaderFromDB()
if err != nil {
return err
}
doc.GenesisTime = latestBlockHeader.Time

doc.AppState = exported.AppState
doc.Validators = exported.Validators
doc.InitialHeight = exported.Height
Expand Down
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