package cli import ( "fmt" "github.com/urfave/cli/v2" "golang.org/x/xerrors" ) var logCmd = &cli.Command{ Name: "log", Usage: "Manage logging", Subcommands: []*cli.Command{ logList, logSetLevel, }, } var logList = &cli.Command{ Name: "list", Usage: "List log systems", Action: func(cctx *cli.Context) error { api, closer, err := GetAPI(cctx) if err != nil { return err } defer closer() ctx := ReqContext(cctx) systems, err := api.LogList(ctx) if err != nil { return err } for _, system := range systems { fmt.Println(system) } return nil }, } var logSetLevel = &cli.Command{ Name: "set-level", Usage: "Set log level", ArgsUsage: "[level]", Description: `Set the log level for logging systems: The system flag can be specified multiple times. eg) log set-level --system chain --system chainxchg debug Available Levels: debug info warn error Environment Variables: GOLOG_LOG_LEVEL - Default log level for all log systems GOLOG_LOG_FMT - Change output log format (json, nocolor) GOLOG_FILE - Write logs to file GOLOG_OUTPUT - Specify whether to output to file, stderr, stdout or a combination, i.e. file+stderr `, Flags: []cli.Flag{ &cli.StringSliceFlag{ Name: "system", Usage: "limit to log system", Value: &cli.StringSlice{}, }, }, Action: func(cctx *cli.Context) error { api, closer, err := GetAPI(cctx) if err != nil { return err } defer closer() ctx := ReqContext(cctx) if !cctx.Args().Present() { return fmt.Errorf("level is required") } systems := cctx.StringSlice("system") if len(systems) == 0 { var err error systems, err = api.LogList(ctx) if err != nil { return err } } for _, system := range systems { if err := api.LogSetLevel(ctx, system, cctx.Args().First()); err != nil { return xerrors.Errorf("setting log level on %s: %w", system, err) } } return nil }, }