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change_environment.go
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change_environment.go
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package cmd
import (
"errors"
"fmt"
"os"
"path/filepath"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/joho/godotenv"
"github.com/spf13/cobra"
"github.com/osmosis-labs/osmosis/v20/app"
)
const (
EnvVariable = "OSMOSISD_ENVIRONMENT"
EnvMainnet = "mainnet"
EnvTestnet = "testnet"
EnvLocalnet = "localnet"
)
// ExportAirdropSnapshotCmd generates a snapshot.json from a provided exported genesis.json.
func ChangeEnvironmentCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "set-env [new env]",
Short: "Set home environment variables for commands",
Long: `Set home environment variables for commands
Example:
osmosisd set-env mainnet
osmosisd set-env testnet
osmosisd set-env localnet [optional-chain-id]
osmosisd set-env $HOME/.custom-dir
`,
Args: customArgs,
RunE: func(cmd *cobra.Command, args []string) error {
// Note: If we are calling this method, the environment file has already been set in
// NewRootCmd() when creating the rootCmd. We do this because order of operations
// dictates this as a requirement. If we changed the env file here, the osmosis
// daemon would not initialize the folder we are intending to set to.
newEnv := args[0]
chainId := ""
if len(args) > 1 {
chainId = args[1]
}
return clientSettingsFromEnv(cmd, newEnv, chainId)
},
}
return cmd
}
// PrintEnvironmentCmd prints the current environment.
func PrintEnvironmentCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "get-env",
Short: "Prints the current environment",
Long: `Prints the current environment
Example:
osmosisd get-env'
Returns one of:
- mainnet implying $HOME/.osmosisd
- testnet implying $HOME/.osmosisd-test
- localosmosis implying $HOME/.osmosisd-local
- custom path`,
RunE: func(cmd *cobra.Command, args []string) error {
environment := getHomeEnvironment()
path, err := environmentNameToPath(environment)
if err != nil {
return err
}
fmt.Println("Environment name: ", environment)
fmt.Println("Environment path: ", path)
return nil
},
}
return cmd
}
func environmentNameToPath(environmentName string) (string, error) {
userHomeDir, err := os.UserHomeDir()
if err != nil {
return "", err
}
switch environmentName {
case EnvMainnet:
return app.DefaultNodeHome, nil
case EnvTestnet:
return filepath.Join(userHomeDir, ".osmosisd-test/"), nil
case EnvLocalnet:
return filepath.Join(userHomeDir, ".osmosisd-local/"), nil
default:
_, err := os.Stat(environmentName)
if os.IsNotExist(err) {
// Creating new environment directory
if err := os.Mkdir(environmentName, os.ModePerm); err != nil {
return "", err
}
}
return environmentName, nil
}
}
// clientSettingsFromEnv takes the env name (mainnet, testnet, localnet, etc) and sets the
// client.toml settings to commonly used values for that environment.
func clientSettingsFromEnv(cmd *cobra.Command, environmentName, chainId string) error {
envConfigs := map[string]map[string]string{
EnvMainnet: {
flags.FlagChainID: "osmosis-1",
flags.FlagNode: "https://rpc.osmosis.zone:443",
flags.FlagBroadcastMode: "block",
},
EnvTestnet: {
flags.FlagChainID: "osmo-test-5",
flags.FlagNode: "https://rpc.testnet.osmosis.zone:443",
flags.FlagBroadcastMode: "block",
},
EnvLocalnet: {
flags.FlagChainID: "localosmosis",
flags.FlagBroadcastMode: "block",
},
}
configs, ok := envConfigs[environmentName]
if !ok {
return nil
}
// Update the ChainID if environmentName is EnvLocalnet and chainId is provided
if environmentName == EnvLocalnet && chainId != "" {
configs[flags.FlagChainID] = chainId
}
for flag, value := range configs {
if err := runConfigCmd(cmd, []string{flag, value}); err != nil {
return err
}
}
return nil
}
// changeEnvironment takes the given environment name and changes the .env file to reflect it.
func changeEnvironment(args []string) error {
newEnv := args[0]
currentEnvironment := getHomeEnvironment()
fmt.Println("Current environment: ", currentEnvironment)
if _, err := environmentNameToPath(newEnv); err != nil {
return err
}
fmt.Println("New environment: ", newEnv)
envMap := make(map[string]string)
envMap[EnvVariable] = newEnv
err := godotenv.Write(envMap, filepath.Join(app.DefaultNodeHome, ".env"))
if err != nil {
return err
}
return nil
}
// createHomeDirIfNotExist creates the home directory if it does not exist and writes a blank
// .env file. This is used for the first time setup of the osmosisd home directory.
func createHomeDirIfNotExist(homeDir string) error {
if _, err := os.Stat(homeDir); os.IsNotExist(err) {
err := os.MkdirAll(homeDir, 0755)
if err != nil {
return err
}
}
envFilePath := filepath.Join(homeDir, ".env")
if _, err := os.Stat(envFilePath); os.IsNotExist(err) {
file, err := os.Create(envFilePath)
if err != nil {
return err
}
file.Close()
}
return nil
}
// changeEnvPriorToSetup changes the env file to reflect the desired environment the user wants to change to.
// If this is not called in NewRootCmd(), the environment change will happen **after** all relevant setup actions
// happen (e.g., the .env will be read in as the previous value in the setup and not the new value).
func changeEnvPriorToSetup(cmd *cobra.Command, initClientCtx *client.Context, args []string, homeDir string) error {
if cmd.Name() == "set-env" {
err := createHomeDirIfNotExist(homeDir)
if err != nil {
return err
}
err = changeEnvironment(args)
if err != nil {
return err
}
homeEnvironment := getHomeEnvironment()
homeDir, err := environmentNameToPath(homeEnvironment)
if err != nil {
// Failed to convert home environment to home path, using default home
homeDir = app.DefaultNodeHome
}
*initClientCtx = initClientCtx.WithHomeDir(homeDir)
}
return nil
}
// customArgs accepts one arg, but if the first arg is "localnet", then it accepts two args.
func customArgs(cmd *cobra.Command, args []string) error {
if len(args) < 1 || len(args) > 2 {
return errors.New("set-env requires 1 or 2 arguments")
}
if args[0] == "localnet" {
return nil
}
if len(args) == 2 {
return errors.New("only 'set-env localnet' accepts a second argument")
}
return nil
}