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package config
import (
"encoding/json"
"errors"
"fmt"
"io/fs"
"os"
"path/filepath"
op_service "github.com/ethereum-optimism/optimism/op-service"
)
var DevnetPresetId = 901
func DevnetPreset() (*Preset, error) {
cwd, err := os.Getwd()
if err != nil {
return nil, err
}
root, err := op_service.FindMonorepoRoot(cwd)
if err != nil {
return nil, err
}
devnetFilepath := filepath.Join(root, ".devnet", "addresses.json")
if _, err := os.Stat(devnetFilepath); errors.Is(err, fs.ErrNotExist) {
return nil, fmt.Errorf(".devnet/addresses.json not found. `make devnet-allocs` in monorepo root: %w", err)
}
content, err := os.ReadFile(devnetFilepath)
if err != nil {
return nil, fmt.Errorf("unable to read .devnet/addressees.json")
}
var l1Contracts L1Contracts
if err := json.Unmarshal(content, &l1Contracts); err != nil {
return nil, err
}
return &Preset{
Name: "Local Devnet",
ChainConfig: ChainConfig{Preset: DevnetPresetId, L1Contracts: l1Contracts},
}, nil
}