forked from akash-network/node
/
builder.go
191 lines (161 loc) · 4.02 KB
/
builder.go
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package initgen
import (
"encoding/json"
"github.com/ovrclk/akash/types"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/p2p"
"github.com/tendermint/tendermint/privval"
tmtypes "github.com/tendermint/tendermint/types"
tmtime "github.com/tendermint/tendermint/types/time"
)
const (
chainID = "local"
)
// Node represents an Akash node
type Node struct {
Name string
//FilePV is file pvs
FilePV *privval.FilePV
NodeKey *p2p.NodeKey
Peers []*Node
}
// Builder is the config builder
type Builder interface {
WithNames([]string) Builder
WithPath(string) Builder
WithAkashGenesis(*types.Genesis) Builder
Create() (Context, error)
}
type builder struct {
names []string
path string
pgenesis *types.Genesis
type_ Type
}
// NewBuilder returns a new instance of the builder
func NewBuilder() Builder {
return &builder{}
}
func (b *builder) WithNames(names []string) Builder {
b.names = names
return b
}
func (b *builder) WithPath(path string) Builder {
b.path = path
return b
}
func (b *builder) WithAkashGenesis(pgenesis *types.Genesis) Builder {
b.pgenesis = pgenesis
return b
}
// Create generates a configuration context
func (b *builder) Create() (Context, error) {
// Generate FilePVs
pvkeys := b.generateFilePVKeys()
// Generate node keys
nodekeys := b.generateNodeKeys()
// Generate nodes
nodes := b.generateNodes(pvkeys, nodekeys)
// Extract public keys from filePVs
pubkeys := make([]crypto.PubKey, 0, len(b.names))
for i := 0; i < len(b.names); i++ {
pubkeys = append(pubkeys, pvkeys[i].Key.PubKey)
}
// make public keys as validators in genesis doc
validators := b.generateValidators(pubkeys)
genesis := &tmtypes.GenesisDoc{
GenesisTime: tmtime.Now(),
ChainID: chainID,
Validators: validators,
}
// specify the account with balances in genesis
if b.pgenesis != nil {
buf, err := json.Marshal(b.pgenesis)
if err != nil {
return nil, err
}
genesis.AppState = buf
}
if err := genesis.ValidateAndComplete(); err != nil {
return nil, err
}
return NewContext(b.path, genesis, nodes...), nil
}
func (b *builder) generatePrivateValidators() []tmtypes.PrivValidator {
if len(b.names) == 0 {
return nil
}
validators := make([]tmtypes.PrivValidator, 0, len(b.names))
for i := 0; i < len(b.names); i++ {
validators = append(validators, privval.GenFilePV("", ""))
}
return validators
}
func (b *builder) generateFilePVKeys() []*privval.FilePV {
if len(b.names) == 0 {
return nil
}
filepvkeys := make([]*privval.FilePV, 0, len(b.names))
for i := 0; i < len(b.names); i++ {
filepvkeys = append(filepvkeys, privval.GenFilePV("", ""))
}
return filepvkeys
}
func (b *builder) generateNodeKeys() []*p2p.NodeKey {
if len(b.names) == 0 {
return nil
}
keys := make([]*p2p.NodeKey, 0, len(b.names))
for i := 0; i < len(b.names); i++ {
key := &p2p.NodeKey{PrivKey: ed25519.GenPrivKey()}
keys = append(keys, key)
}
return keys
}
func (b *builder) generateNodes(fvals []*privval.FilePV, nodekeys []*p2p.NodeKey) []*Node {
if len(b.names) == 0 {
return nil
}
nodes := make([]*Node, 0, len(b.names))
if len(b.names) == 1 {
return []*Node{
{Name: b.names[0], FilePV: fvals[0], NodeKey: nodekeys[0]}}
}
for n := 0; n < len(b.names); n++ {
nodes = append(nodes, &Node{
Name: b.names[n],
NodeKey: nodekeys[n],
FilePV: fvals[n],
})
}
for n, node := range nodes {
for i := 0; i < len(nodes); i++ {
if n != i {
node.Peers = append(node.Peers, nodes[i])
}
}
}
return nodes
}
func (b *builder) generateValidators(pubKeys []crypto.PubKey) []tmtypes.GenesisValidator {
if len(pubKeys) == 1 {
return []tmtypes.GenesisValidator{
{
Power: 10,
PubKey: pubKeys[0],
Address: pubKeys[0].Address(),
},
}
}
var gvalidators []tmtypes.GenesisValidator
for idx, pk := range pubKeys {
gvalidators = append(gvalidators, tmtypes.GenesisValidator{
Name: b.names[idx],
PubKey: pk,
Address: pk.Address(),
Power: 10,
})
}
return gvalidators
}