/
root.go
213 lines (178 loc) · 5.29 KB
/
root.go
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// Package cmd implements commands for oasis-net-runner executable.
package cmd
import (
"fmt"
"io"
"os"
"path/filepath"
"github.com/spf13/cobra"
flag "github.com/spf13/pflag"
"github.com/spf13/viper"
"github.com/oasisprotocol/oasis-core/go/common/logging"
"github.com/oasisprotocol/oasis-core/go/common/version"
"github.com/oasisprotocol/oasis-core/go/oasis-net-runner/fixtures"
"github.com/oasisprotocol/oasis-core/go/oasis-node/cmd/common"
cmdFlags "github.com/oasisprotocol/oasis-core/go/oasis-node/cmd/common/flags"
"github.com/oasisprotocol/oasis-core/go/oasis-test-runner/env"
)
const (
cfgConfigFile = "config"
cfgLogFmt = "log.format"
cfgLogLevel = "log.level"
cfgLogNoStdout = "log.no_stdout"
)
var (
rootCmd = &cobra.Command{
Use: "oasis-net-runner",
Short: "Oasis network runner",
Version: version.SoftwareVersion,
RunE: runRoot,
}
dumpFixtureCmd = &cobra.Command{
Use: "dump-fixture",
Short: "dump configured fixture to standard output",
Run: doDumpFixture,
}
rootFlags = flag.NewFlagSet("", flag.ContinueOnError)
cfgFile string
)
// RootCmd returns the root command's structure that will be executed, so that
// it can be used to alter the configuration and flags of the command.
//
// Note: `Run` is pre-initialized to the main entry point of the test harness,
// and should likely be left un-altered.
func RootCmd() *cobra.Command {
return rootCmd
}
// Execute spawns the main entry point after handing the config file.
func Execute() {
if err := rootCmd.Execute(); err != nil {
os.Exit(1)
}
}
func initRootEnv(cmd *cobra.Command) (*env.Env, error) {
// Initialize the root dir.
rootDir := env.GetRootDir()
if err := rootDir.Init(cmd); err != nil {
return nil, err
}
env := env.New(rootDir)
var ok bool
defer func() {
if !ok {
env.Cleanup()
}
}()
var logFmt logging.Format
if err := logFmt.Set(viper.GetString(cfgLogFmt)); err != nil {
return nil, fmt.Errorf("root: failed to set log format: %w", err)
}
var logLevel logging.Level
if err := logLevel.Set(viper.GetString(cfgLogLevel)); err != nil {
return nil, fmt.Errorf("root: failed to set log level: %w", err)
}
// Initialize logging.
logFile := filepath.Join(env.Dir(), "net-runner.log")
w, err := os.OpenFile(logFile, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o600)
if err != nil {
return nil, fmt.Errorf("root: failed to open log file: %w", err)
}
var logWriter io.Writer = w
if !viper.GetBool(cfgLogNoStdout) {
logWriter = io.MultiWriter(os.Stdout, w)
}
if err := logging.Initialize(logWriter, logFmt, logLevel, nil); err != nil {
return nil, fmt.Errorf("root: failed to initialize logging: %w", err)
}
ok = true
return env, nil
}
func runRoot(cmd *cobra.Command, args []string) error {
cmd.SilenceUsage = true
// Initialize the base dir, logging, etc.
rootEnv, err := initRootEnv(cmd)
if err != nil {
return err
}
defer rootEnv.Cleanup()
logger := logging.GetLogger("net-runner")
childEnv, err := rootEnv.NewChild("net-runner", nil)
if err != nil {
logger.Error("failed to setup child environment",
"err", err,
)
return fmt.Errorf("root: failed to setup child environment: %w", err)
}
fixture, err := fixtures.GetFixture()
if err != nil {
return err
}
// Instantiate fixture.
logger.Debug("instantiating fixture")
net, err := fixture.Create(childEnv)
if err != nil {
logger.Error("failed to instantiate fixture",
"err", err,
)
return fmt.Errorf("root: failed to instantiate fixture: %w", err)
}
// Start the network and keep it running.
if err = net.Start(); err != nil {
logger.Error("failed to start network",
"err", err,
)
return fmt.Errorf("root: failed to start network: %w", err)
}
// Display information about where the client node socket is.
if len(net.Clients()) > 0 {
logger.Info("client node socket available",
"path", net.Clients()[0].SocketPath(),
)
}
// Wait for the network to stop.
err = <-net.Errors()
if err != nil {
logger.Error("error while running network",
"err", err,
)
}
logger.Info("terminating network")
return nil
}
func doDumpFixture(cmd *cobra.Command, args []string) {
f, err := fixtures.GetFixture()
if err != nil {
common.EarlyLogAndExit(err)
}
// Encode fixture as JSON and dump it to stdout.
data, err := fixtures.DumpFixture(f)
if err != nil {
common.EarlyLogAndExit(fmt.Errorf("doDumpFixture: failed to marshal fixture: %w", err))
}
fmt.Printf("%s", data)
}
func init() {
common.SetBasicVersionTemplate(rootCmd)
logFmt := logging.FmtLogfmt
logLevel := logging.LevelInfo
rootFlags.StringVar(&cfgFile, cfgConfigFile, "", "config file")
rootFlags.Var(&logFmt, cfgLogFmt, "log format")
rootFlags.Var(&logLevel, cfgLogLevel, "log level")
rootFlags.Bool(cfgLogNoStdout, false, "do not mutiplex logs to stdout")
_ = viper.BindPFlags(rootFlags)
rootCmd.PersistentFlags().AddFlagSet(rootFlags)
rootCmd.PersistentFlags().AddFlagSet(env.Flags)
rootCmd.Flags().AddFlagSet(fixtures.DefaultFixtureFlags)
rootCmd.Flags().AddFlagSet(fixtures.FileFixtureFlags)
dumpFixtureCmd.Flags().AddFlagSet(fixtures.DefaultFixtureFlags)
rootCmd.AddCommand(dumpFixtureCmd)
cobra.OnInitialize(func() {
if cfgFile != "" {
viper.SetConfigFile(cfgFile)
if err := viper.ReadInConfig(); err != nil {
common.EarlyLogAndExit(err)
}
}
viper.Set(cmdFlags.CfgDebugDontBlameOasis, true)
})
}