lotus/cli/log.go

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package cli
import (
"fmt"
"golang.org/x/xerrors"
"gopkg.in/urfave/cli.v2"
)
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 := GetFullNodeAPI(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 blocksync 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 in addition to 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 := GetFullNodeAPI(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
},
}