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crashd.go
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crashd.go
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// Copyright (c) 2019 VMware, Inc. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package cmd
import (
"os"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/vmware-tanzu/crash-diagnostics/buildinfo"
)
const (
defaultLogLevel = logrus.InfoLevel
CliName = "crashd"
)
// globalFlags flags for the command
type globalFlags struct {
debug bool
}
// crashDiagnosticsCommand creates a main cli command
func crashDiagnosticsCommand() *cobra.Command {
flags := &globalFlags{debug: false}
cmd := &cobra.Command{
Args: cobra.NoArgs,
Use: CliName,
Short: "runs the crashd program",
Long: "Runs the crashd program to execute script that interacts with Kubernetes clusters",
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
return preRun(flags)
},
SilenceUsage: true,
Version: buildinfo.Version,
}
cmd.PersistentFlags().BoolVar(
&flags.debug,
"debug",
flags.debug,
"sets log level to debug",
)
cmd.AddCommand(newRunCommand())
cmd.AddCommand(newBuildinfoCommand())
return cmd
}
func preRun(flags *globalFlags) error {
level := defaultLogLevel
if flags.debug {
level = logrus.DebugLevel
}
logrus.SetLevel(level)
return CreateCrashdDir()
}
// Run starts the command
func Run() error {
logrus.SetOutput(os.Stdout)
return crashDiagnosticsCommand().Execute()
}