mirror of
https://github.com/hanzoai/visor.git
synced 2026-09-24 17:04:14 +00:00
I Hsin Cheng
04bfee4427
Originally, some of the commands' usage display didn't achieved to show newline, while some of them does, which are more user-friendly, and won't confuse the message if there're more which should be in the nextline. Fix this issue by returning usage string with a newline. Signed-off-by: I Hsin Cheng <[email protected]>
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2022 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package trace
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import (
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"context"
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"fmt"
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"sort"
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"strings"
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"github.com/google/subcommands"
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"gvisor.dev/gvisor/pkg/sentry/seccheck"
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"gvisor.dev/gvisor/runsc/flag"
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)
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// metadata implements subcommands.Command for the "metadata" command.
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type metadata struct{}
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// Name implements subcommands.Command.
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func (*metadata) Name() string {
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return "metadata"
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}
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// Synopsis implements subcommands.Command.
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func (*metadata) Synopsis() string {
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return "list all trace points configuration information"
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}
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// Usage implements subcommands.Command.
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func (*metadata) Usage() string {
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return "metadata - list all trace points configuration information\n"
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}
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// SetFlags implements subcommands.Command.
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func (*metadata) SetFlags(*flag.FlagSet) {}
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// Execute implements subcommands.Command.
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func (l *metadata) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus {
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// Sort to keep related points together.
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points := make([]seccheck.PointDesc, 0, len(seccheck.Points))
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for _, pt := range seccheck.Points {
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points = append(points, pt)
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}
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sort.Slice(points, func(i int, j int) bool {
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return points[i].Name < points[j].Name
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})
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fmt.Printf("POINTS (%d)\n", len(seccheck.Points))
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for _, pt := range points {
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optFields := fieldNames(pt.OptionalFields)
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ctxFields := fieldNames(pt.ContextFields)
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fmt.Printf("Name: %s, optional fields: [%s], context fields: [%s]\n", pt.Name, strings.Join(optFields, "|"), strings.Join(ctxFields, "|"))
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}
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fmt.Printf("\nSINKS (%d)\n", len(seccheck.Sinks))
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for _, sink := range seccheck.Sinks {
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fmt.Printf("Name: %s\n", sink.Name)
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}
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return subcommands.ExitSuccess
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}
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func fieldNames(fields []seccheck.FieldDesc) []string {
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names := make([]string, 0, len(fields))
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for _, f := range fields {
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names = append(names, f.Name)
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}
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return names
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}
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