/
config.go
210 lines (183 loc) · 5.2 KB
/
config.go
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package config
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"time"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/hyperledger-labs/yui-relayer/core"
)
type Config struct {
Global GlobalConfig `yaml:"global" json:"global"`
Chains []core.ChainProverConfig `yaml:"chains" json:"chains"`
Paths core.Paths `yaml:"paths" json:"paths"`
// cache
chains Chains `yaml:"-" json:"-"`
ConfigPath string `yaml:"-" json:"-"`
}
func defaultConfig(configPath string) Config {
return Config{
Global: newDefaultGlobalConfig(),
Chains: []core.ChainProverConfig{},
Paths: core.Paths{},
ConfigPath: configPath,
}
}
// GlobalConfig describes any global relayer settings
type GlobalConfig struct {
Timeout string `yaml:"timeout" json:"timeout"`
LightCacheSize int `yaml:"light-cache-size" json:"light-cache-size"`
LoggerConfig LoggerConfig `yaml:"logger" json:"logger"`
}
type LoggerConfig struct {
Level string `yaml:"level" json:"level"`
Format string `yaml:"format" json:"format"`
Output string `yaml:"output" json:"output"`
}
// newDefaultGlobalConfig returns a global config with defaults set
func newDefaultGlobalConfig() GlobalConfig {
return GlobalConfig{
Timeout: "10s",
LightCacheSize: 20,
LoggerConfig: LoggerConfig{
Level: "DEBUG",
Format: "json",
Output: "stderr",
},
}
}
func (c *Config) InitCoreConfig() {
initCoreConfig(c)
}
func (c *Config) GetChain(chainID string) (*core.ProvableChain, error) {
return c.chains.Get(chainID)
}
func (c *Config) GetChains(chainIDs ...string) (map[string]*core.ProvableChain, error) {
return c.chains.Gets(chainIDs...)
}
// AddChain adds an additional chain to the config
func (c *Config) AddChain(m codec.JSONCodec, config core.ChainProverConfig) error {
chain, err := config.Build()
if err != nil {
return err
}
if _, err := c.GetChain(chain.ChainID()); err == nil {
return fmt.Errorf("chain with ID %s already exists in config", chain.ChainID())
}
c.Chains = append(c.Chains, config)
c.chains = append(c.chains, chain)
return nil
}
// AddPath adds an additional path to the config
func (c *Config) AddPath(name string, path *core.Path) (err error) {
return c.Paths.Add(name, path)
}
// DeleteChain removes a chain from the config
func (c *Config) DeleteChain(chain string) *Config {
var newChains []*core.ProvableChain
var newChainConfigs []core.ChainProverConfig
for i, ch := range c.chains {
if ch.ChainID() != chain {
newChains = append(newChains, ch)
newChainConfigs = append(newChainConfigs, c.Chains[i])
}
}
c.Chains = newChainConfigs
c.chains = newChains
return c
}
// ChainsFromPath takes the path name and returns the properly configured chains
func (c *Config) ChainsFromPath(path string) (map[string]*core.ProvableChain, string, string, error) {
pth, err := c.Paths.Get(path)
if err != nil {
return nil, "", "", err
}
src, dst := pth.Src.ChainID, pth.Dst.ChainID
chains, err := c.chains.Gets(src, dst)
if err != nil {
return nil, "", "", err
}
if err = chains[src].SetRelayInfo(pth.Src, chains[dst], pth.Dst); err != nil {
return nil, "", "", err
}
if err = chains[dst].SetRelayInfo(pth.Dst, chains[src], pth.Src); err != nil {
return nil, "", "", err
}
return chains, src, dst, nil
}
// Called to initialize the relayer.Chain types on Config
func InitChains(ctx *Context, homePath string, debug bool) error {
to, err := time.ParseDuration(ctx.Config.Global.Timeout)
if err != nil {
return fmt.Errorf("did you remember to run 'rly config init' error:%w", err)
}
for _, chain := range ctx.Config.chains {
if err := chain.Init(homePath, to, ctx.Codec, debug); err != nil {
return fmt.Errorf("did you remember to run 'rly config init' error:%w", err)
}
}
return nil
}
func (c *Config) InitConfig(ctx *Context, homePath, configPath string, debug bool) error {
cfgPath := fmt.Sprintf("%s/%s", homePath, configPath)
c.ConfigPath = cfgPath
if _, err := os.Stat(cfgPath); err == nil {
file, err := os.ReadFile(cfgPath)
if err != nil {
return err
}
// unmarshall them into the struct
if err = UnmarshalJSON(ctx.Codec, file, c); err != nil {
return err
}
// ensure config has []*relayer.Chain used for all chain operations
if err = InitChains(ctx, homePath, debug); err != nil {
return err
}
} else {
defConfig := defaultConfig(cfgPath)
c = &defConfig
}
c.InitCoreConfig()
ctx.Config = c
return nil
}
func (c *Config) CreateConfig() error {
cfgPath := c.ConfigPath
if _, err := os.Stat(cfgPath); os.IsNotExist(err) {
dirPath := filepath.Dir(cfgPath)
if err := os.MkdirAll(dirPath, os.ModePerm); err != nil {
return err
}
f, err := os.Create(cfgPath)
if err != nil {
return err
}
defer f.Close()
if _, err = f.Write(defaultConfigBytes(c.ConfigPath)); err != nil {
return err
}
return nil
} else if err != nil {
return err
}
return nil
}
func (c *Config) OverWriteConfig() error {
configData, err := json.Marshal(c)
if err != nil {
return err
}
if err := os.WriteFile(c.ConfigPath, configData, 0600); err != nil {
return err
}
return nil
}
func defaultConfigBytes(configPath string) []byte {
bz, err := json.Marshal(defaultConfig(configPath))
if err != nil {
panic(err)
}
return bz
}