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- // Copyright 2022 Google Inc. All rights reserved.
- //
- // 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 main
- import (
- "flag"
- "fmt"
- "io/ioutil"
- "os"
- "strings"
- "google.golang.org/protobuf/encoding/prototext"
- "google.golang.org/protobuf/proto"
- "android/soong/compliance/license_metadata_proto"
- "android/soong/response"
- )
- func newMultiString(flags *flag.FlagSet, name, usage string) *multiString {
- var f multiString
- flags.Var(&f, name, usage)
- return &f
- }
- type multiString []string
- func (ms *multiString) String() string { return strings.Join(*ms, ", ") }
- func (ms *multiString) Set(s string) error { *ms = append(*ms, s); return nil }
- func main() {
- var expandedArgs []string
- for _, arg := range os.Args[1:] {
- if strings.HasPrefix(arg, "@") {
- f, err := os.Open(strings.TrimPrefix(arg, "@"))
- if err != nil {
- fmt.Fprintln(os.Stderr, err.Error())
- os.Exit(1)
- }
- respArgs, err := response.ReadRspFile(f)
- f.Close()
- if err != nil {
- fmt.Fprintln(os.Stderr, err.Error())
- os.Exit(1)
- }
- expandedArgs = append(expandedArgs, respArgs...)
- } else {
- expandedArgs = append(expandedArgs, arg)
- }
- }
- flags := flag.NewFlagSet("flags", flag.ExitOnError)
- installed := flags.String("i", "", "installed target")
- sources := newMultiString(flags, "s", "source (input) file")
- dep := flags.String("d", "", "license metadata file dependency")
- outFile := flags.String("o", "", "output file")
- flags.Parse(expandedArgs)
- if len(*dep) == 0 || len(*installed) == 0 || len(*sources) == 0 {
- flags.Usage()
- if len(*dep) == 0 {
- fmt.Fprintf(os.Stderr, "source license metadata (-d flag) required\n")
- }
- if len(*sources) == 0 {
- fmt.Fprintf(os.Stderr, "source copy (-s flag required\n")
- }
- if len(*installed) == 0 {
- fmt.Fprintf(os.Stderr, "installed copy (-i flag) required\n")
- }
- os.Exit(1)
- }
- src_metadata := license_metadata_proto.LicenseMetadata{}
- err := readMetadata(*dep, &src_metadata)
- if err != nil {
- fmt.Fprintf(os.Stderr, "error: %s\n", err.Error())
- os.Exit(2)
- }
- metadata := src_metadata
- metadata.Built = nil
- metadata.InstallMap = nil
- metadata.Installed = []string{*installed}
- metadata.Sources = *sources
- metadata.Deps = []*license_metadata_proto.AnnotatedDependency{&license_metadata_proto.AnnotatedDependency{
- File: proto.String(*dep),
- Annotations: []string{"static"},
- }}
- err = writeMetadata(*outFile, &metadata)
- if err != nil {
- fmt.Fprintf(os.Stderr, "error: %s\n", err.Error())
- os.Exit(2)
- }
- }
- func readMetadata(file string, metadata *license_metadata_proto.LicenseMetadata) error {
- if file == "" {
- return fmt.Errorf("source metadata file (-d) required")
- }
- buf, err := ioutil.ReadFile(file)
- if err != nil {
- return fmt.Errorf("error reading textproto %q: %w", file, err)
- }
- err = prototext.Unmarshal(buf, metadata)
- if err != nil {
- return fmt.Errorf("error unmarshalling textproto: %w", err)
- }
- return nil
- }
- func writeMetadata(file string, metadata *license_metadata_proto.LicenseMetadata) error {
- buf, err := prototext.MarshalOptions{Multiline: true}.Marshal(metadata)
- if err != nil {
- return fmt.Errorf("error marshalling textproto: %w", err)
- }
- if file != "" {
- err = ioutil.WriteFile(file, buf, 0666)
- if err != nil {
- return fmt.Errorf("error writing textproto %q: %w", file, err)
- }
- } else {
- _, _ = os.Stdout.Write(buf)
- }
- return nil
- }
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