2017-01-28 09:29:32 -08:00
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package app
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"github.com/pkg/errors"
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cmn "github.com/tendermint/go-common"
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)
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func (app *Basecoin) LoadGenesis(path string) error {
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kvz, err := loadGenesis(path)
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if err != nil {
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return err
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}
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for _, kv := range kvz {
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log := app.SetOption(kv.Key, kv.Value)
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// TODO: remove debug output
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2017-02-13 14:04:49 -08:00
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fmt.Printf("Set %v=%v. Log: %v\n", kv.Key, kv.Value, log)
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2017-01-28 09:29:32 -08:00
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}
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return nil
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}
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type keyValue struct {
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Key string `json:"key"`
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Value string `json:"value"`
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}
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func loadGenesis(filePath string) (kvz []keyValue, err error) {
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kvz_ := []interface{}{}
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bytes, err := cmn.ReadFile(filePath)
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if err != nil {
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return nil, errors.Wrap(err, "loading genesis file")
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}
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err = json.Unmarshal(bytes, &kvz_)
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if err != nil {
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return nil, errors.Wrap(err, "parsing genesis file")
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}
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if len(kvz_)%2 != 0 {
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return nil, errors.New("genesis cannot have an odd number of items. Format = [key1, value1, key2, value2, ...]")
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}
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for i := 0; i < len(kvz_); i += 2 {
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keyIfc := kvz_[i]
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valueIfc := kvz_[i+1]
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var key, value string
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key, ok := keyIfc.(string)
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if !ok {
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return nil, errors.Errorf("genesis had invalid key %v of type %v", keyIfc, reflect.TypeOf(keyIfc))
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}
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if value_, ok := valueIfc.(string); ok {
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value = value_
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} else {
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valueBytes, err := json.Marshal(valueIfc)
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if err != nil {
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return nil, errors.Errorf("genesis had invalid value %v: %v", value_, err.Error())
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}
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value = string(valueBytes)
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}
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kvz = append(kvz, keyValue{key, value})
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}
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return kvz, nil
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}
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