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// Copyright 2022 The Witness Contributors
//
// 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 cmd
import (
"fmt"
"os"
"runtime"
"runtime/pprof"
"github.com/in-toto/go-witness/log"
_ "github.com/in-toto/go-witness/signer/kms/aws"
_ "github.com/in-toto/go-witness/signer/kms/gcp"
"github.com/in-toto/witness/options"
"github.com/spf13/cobra"
)
var (
ro = &options.RootOptions{}
cpuProfileFile *os.File
)
func New() *cobra.Command {
cmd := &cobra.Command{
Use: "witness",
Short: "Collect and verify attestations about your build environments",
DisableAutoGenTag: true,
SilenceErrors: true,
}
logger := newLogger()
log.SetLogger(logger)
ro.AddFlags(cmd)
cmd.AddCommand(SignCmd())
cmd.AddCommand(VerifyCmd())
cmd.AddCommand(RunCmd())
cmd.AddCommand(CompletionCmd())
cmd.AddCommand(VersionCmd())
cmd.AddCommand(AttestorsCmd())
cmd.AddCommand(PolicyCmd())
cobra.OnInitialize(func() { preRoot(cmd, ro, logger) })
cobra.OnFinalize((func() { postRoot(ro, logger) }))
return cmd
}
func Execute() {
if err := New().Execute(); err != nil {
log.Error(err)
os.Exit(1)
}
}
func preRoot(cmd *cobra.Command, ro *options.RootOptions, logger *logrusLogger) {
if err := logger.SetLevel(ro.LogLevel); err != nil {
logger.l.Fatal(err)
}
if err := initConfig(cmd, ro); err != nil {
logger.l.Fatal(err)
}
var err error
if len(ro.CpuProfileFile) > 0 {
cpuProfileFile, err = os.Create(ro.CpuProfileFile)
if err != nil {
logger.l.Fatalf("could not create CPU profile: %v", err)
}
if err = pprof.StartCPUProfile(cpuProfileFile); err != nil {
logger.l.Fatalf("could not start CPU profile: %v", err)
}
}
}
func postRoot(ro *options.RootOptions, logger *logrusLogger) {
if cpuProfileFile != nil {
pprof.StopCPUProfile()
if err := cpuProfileFile.Close(); err != nil {
logger.l.Fatalf("could not close cpu profile file: %v", err)
}
}
if len(ro.MemProfileFile) > 0 {
memProfileFile, err := os.Create(ro.MemProfileFile)
if err != nil {
logger.l.Fatalf("could not create memory profile file: %v", err)
}
defer func() {
if err := memProfileFile.Close(); err != nil {
logger.l.Errorf("failed to write memory profile to disk: %v", err)
}
}()
runtime.GC()
if err := pprof.WriteHeapProfile(memProfileFile); err != nil {
logger.l.Fatalf("could not write memory profile: %v", err)
}
}
}
func loadOutfile(outFilePath string) (*os.File, error) {
var err error
out := os.Stdout
if outFilePath != "" {
out, err = os.Create(outFilePath)
if err != nil {
return nil, fmt.Errorf("failed to create output file: %w", err)
}
}
return out, err
}
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