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root.go
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root.go
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// Copyright 2020 Coinbase, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"context"
"fmt"
"log"
"os"
"os/signal"
"syscall"
"time"
"github.com/coinbase/rosetta-cli/configuration"
"github.com/coinbase/rosetta-cli/internal/utils"
"github.com/fatih/color"
"github.com/spf13/cobra"
)
const (
// ExtendedRetryElapsedTime is used to override the default fetcher
// retry elapsed time. In practice, extending the retry elapsed time
// has prevented retry exhaustion errors when many goroutines are
// used to fetch data from the Rosetta server.
//
// TODO: make configurable
ExtendedRetryElapsedTime = 5 * time.Minute
)
var (
rootCmd = &cobra.Command{
Use: "rosetta-cli",
Short: "CLI for the Rosetta API",
}
configurationFile string
// Config is the populated *configuration.Configuration from
// the configurationFile. If none is provided, this is set
// to the default settings.
Config *configuration.Configuration
// SignalReceived is set to true when a signal causes us to exit. This makes
// determining the error message to show on exit much more easy.
SignalReceived = false
)
// Execute handles all invocations of the
// rosetta-cli cmd.
func Execute() error {
return rootCmd.Execute()
}
func init() {
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().StringVar(
&configurationFile,
"configuration-file",
"",
`Configuration file that provides connection and test settings.
If you would like to generate a starter configuration file (populated
with the defaults), run rosetta-cli configuration:create.
Any fields not populated in the configuration file will be populated with
default values.`,
)
rootCmd.AddCommand(versionCmd)
// Configuration Commands
rootCmd.AddCommand(configurationCreateCmd)
rootCmd.AddCommand(configurationValidateCmd)
// Check commands
rootCmd.AddCommand(checkDataCmd)
rootCmd.AddCommand(checkConstructionCmd)
// View Commands
rootCmd.AddCommand(viewBlockCmd)
rootCmd.AddCommand(viewAccountCmd)
rootCmd.AddCommand(viewNetworksCmd)
// Utils
rootCmd.AddCommand(utilsAsserterConfigurationCmd)
}
func initConfig() {
var err error
if len(configurationFile) == 0 {
Config = configuration.DefaultConfiguration()
} else {
Config, err = configuration.LoadConfiguration(configurationFile)
}
if err != nil {
log.Fatalf("%s: unable to load configuration", err.Error())
}
}
func ensureDataDirectoryExists() {
// If data directory is not specified, we use a temporary directory
// and delete its contents when execution is complete.
if len(Config.DataDirectory) == 0 {
tmpDir, err := utils.CreateTempDir()
if err != nil {
log.Fatalf("%s: unable to create temporary directory", err.Error())
}
Config.DataDirectory = tmpDir
}
}
// handleSignals handles OS signals so we can ensure we close database
// correctly. We call multiple sigListeners because we
// may need to cancel more than 1 context.
func handleSignals(listeners []context.CancelFunc) {
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
go func() {
sig := <-sigs
color.Red("Received signal: %s", sig)
SignalReceived = true
for _, listener := range listeners {
listener()
}
}()
}
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print rosetta-cli version",
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("v0.4.0")
},
}