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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| package genesis | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
|
|
||
| sdk "github.com/cosmos/cosmos-sdk" | ||
| "github.com/pkg/errors" | ||
|
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| cmn "github.com/tendermint/tmlibs/common" | ||
| ) | ||
|
|
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| // KeyDelimiter is used to separate module and key in | ||
| // the options | ||
| const KeyDelimiter = "/" | ||
|
|
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| // Option just holds module/key/value triples from | ||
| // parsing the genesis file | ||
| type Option struct { | ||
| Module string | ||
| Key string | ||
| Value string | ||
| } | ||
|
|
||
| // InitStater is anything that can handle app options | ||
| // from genesis file. Setting the merkle store, config options, | ||
| // or anything else | ||
| type InitStater interface { | ||
| InitState(module, key, value string) error | ||
| } | ||
|
|
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| // Load parses the genesis file and sets the initial | ||
| // state based on that | ||
| func Load(app InitStater, filePath string) error { | ||
| opts, err := GetOptions(filePath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // execute all the genesis init options | ||
| // abort on any error | ||
| for _, opt := range opts { | ||
| err = app.InitState(opt.Module, opt.Key, opt.Value) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // GetOptions parses the genesis file in a format | ||
| // that can easily be handed into InitStaters | ||
| func GetOptions(path string) ([]Option, error) { | ||
| genDoc, err := load(path) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| opts := genDoc.AppOptions | ||
| validators := genDoc.Validators | ||
| cnt := 1 + len(opts.Accounts) + len(validators) | ||
| res := make([]Option, 0, cnt) | ||
| res = append(res, Option{sdk.ModuleNameBase, sdk.ChainKey, genDoc.ChainID}) | ||
|
|
||
| // set accounts | ||
| //for _, validator := range validators { | ||
| // res = append(res, Option{"coin", "validator", string(validator)}) | ||
| //} | ||
| res = append(res, Option{"stake", "validators", string(validators)}) | ||
|
|
||
| // set accounts | ||
| for _, acct := range opts.Accounts { | ||
| res = append(res, Option{"coin", "account", string(acct)}) | ||
| } | ||
|
|
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| return res, nil | ||
| } | ||
|
|
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| type keyValue struct { | ||
| Key string `json:"key"` | ||
| Value string `json:"value"` | ||
| } | ||
|
|
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| // FullDoc - includes tendermint (in the json, we ignore here) | ||
| type FullDoc struct { | ||
| ChainID string `json:"chain_id"` | ||
| AppOptions *Doc `json:"app_options"` | ||
| Validators json.RawMessage `json:"validators"` | ||
| } | ||
|
|
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| // Doc - All genesis values | ||
| type Doc struct { | ||
| Accounts []json.RawMessage `json:"accounts"` | ||
| } | ||
|
|
||
| func load(filePath string) (*FullDoc, error) { | ||
| bytes, err := cmn.ReadFile(filePath) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "loading genesis file") | ||
| } | ||
|
|
||
| // the basecoin genesis go-wire/data :) | ||
| genDoc := new(FullDoc) | ||
| err = json.Unmarshal(bytes, genDoc) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "unmarshaling genesis file") | ||
| } | ||
|
|
||
| if genDoc.AppOptions == nil { | ||
| genDoc.AppOptions = new(Doc) | ||
| } | ||
|
|
||
| return genDoc, nil | ||
| } |
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