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// Copyright 2022 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package trace provides subcommands for the trace command.
package trace
import (
"bytes"
"context"
"github.com/google/subcommands"
"gvisor.dev/gvisor/pkg/sentry/seccheck"
"gvisor.dev/gvisor/runsc/flag"
)
// Trace implements subcommands.Command for the "trace" command.
type Trace struct{}
// Name implements subcommands.Command.
func (*Trace) Name() string {
return "trace"
}
// Synopsis implements subcommands.Command.
func (*Trace) Synopsis() string {
return "manages trace sessions for a given sandbox"
}
// Usage implements subcommands.Command.
func (*Trace) Usage() string {
buf := bytes.Buffer{}
buf.WriteString("Usage: trace <flags> <subcommand> <subcommand args>\n\n")
cdr := createCommander(&flag.FlagSet{})
cdr.VisitGroups(func(grp *subcommands.CommandGroup) {
cdr.ExplainGroup(&buf, grp)
})
return buf.String()
}
// SetFlags implements subcommands.Command.
func (*Trace) SetFlags(f *flag.FlagSet) {}
// Execute implements subcommands.Command.
func (*Trace) Execute(ctx context.Context, f *flag.FlagSet, args ...any) subcommands.ExitStatus {
seccheck.Initialize()
return createCommander(f).Execute(ctx, args...)
}
func createCommander(f *flag.FlagSet) *subcommands.Commander {
cdr := subcommands.NewCommander(f, "trace")
cdr.Register(cdr.HelpCommand(), "")
cdr.Register(cdr.FlagsCommand(), "")
cdr.Register(new(create), "")
cdr.Register(new(delete), "")
cdr.Register(new(list), "")
cdr.Register(new(metadata), "")
cdr.Register(new(procfs), "")
return cdr
}
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