github.com/rajatvaryani/mattermost-server@v5.11.1+incompatible/cmd/mattermost/commands/logs.go (about)

     1  // Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
     2  // See License.txt for license information.
     3  
     4  package commands
     5  
     6  import (
     7  	"io"
     8  	"os"
     9  
    10  	"github.com/mattermost/mattermost-server/mlog/human"
    11  	"github.com/spf13/cobra"
    12  )
    13  
    14  var LogsCmd = &cobra.Command{
    15  	Use:   "logs",
    16  	Short: "Display logs in a human-readable format",
    17  	RunE:  logsCmdF,
    18  }
    19  
    20  func init() {
    21  	LogsCmd.Flags().Bool("logrus", false, "Use logrus for formatting.")
    22  	RootCmd.AddCommand(LogsCmd)
    23  }
    24  
    25  func logsCmdF(command *cobra.Command, args []string) error {
    26  	// check stdin to see if we have a pipe
    27  	fi, err := os.Stdin.Stat()
    28  	if err != nil {
    29  		return err
    30  	}
    31  
    32  	var input io.Reader
    33  	if fi.Size() == 0 && fi.Mode()&os.ModeNamedPipe == 0 {
    34  		file, err := os.Open("mattermost.log")
    35  		if err != nil {
    36  			return err
    37  		}
    38  		defer file.Close()
    39  		input = file
    40  	} else {
    41  		input = os.Stdin
    42  	}
    43  	var writer human.LogWriter
    44  
    45  	if flag, _ := command.Flags().GetBool("logrus"); flag {
    46  		writer = human.NewLogrusWriter(os.Stdout)
    47  	} else {
    48  		writer = human.NewSimpleWriter(os.Stdout)
    49  	}
    50  	human.ProcessLogs(input, writer)
    51  
    52  	return nil
    53  }