lotus/cli/log.go

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package cli
import (
"fmt"
"github.com/urfave/cli/v2"
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"golang.org/x/xerrors"
)
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var LogCmd = &cli.Command{
Name: "log",
Usage: "Manage logging",
Subcommands: []*cli.Command{
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LogList,
LogSetLevel,
},
}
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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
},
}
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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)
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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 {
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return xerrors.Errorf("setting log level on %s: %v", system, err)
}
}
return nil
},
}