/
combine.go
219 lines (211 loc) · 5.72 KB
/
combine.go
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package main
import (
"bufio"
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"runtime/debug"
"sort"
"strings"
"github.com/gogo/protobuf/proto"
"github.com/spf13/cobra"
progress "gopkg.in/cheggaaa/pb.v1"
"gopkg.in/src-d/hercules.v10"
"gopkg.in/src-d/hercules.v10/internal/pb"
)
// combineCmd represents the combine command
var combineCmd = &cobra.Command{
Use: "combine",
Short: "Merge several binary analysis results together.",
Long: ``,
Args: cobra.MinimumNArgs(1),
Run: func(cmd *cobra.Command, files []string) {
if len(files) == 1 {
file, err := os.Open(files[0])
if err != nil {
panic(err)
}
defer file.Close()
_, err = io.Copy(os.Stdout, bufio.NewReader(file))
if err != nil {
panic(err)
}
return
}
only, err := cmd.Flags().GetString("only")
if err != nil {
panic(err)
}
var repos []string
allErrors := map[string][]string{}
mergedResults := map[string]interface{}{}
mergedMetadata := &hercules.CommonAnalysisResult{}
var fileName string
bar := progress.New(len(files))
bar.Callback = func(msg string) {
os.Stderr.WriteString("\033[2K\r" + msg + " " + fileName)
}
bar.NotPrint = true
bar.ShowPercent = false
bar.ShowSpeed = false
bar.SetMaxWidth(80).Start()
debug.SetGCPercent(20)
for _, fileName = range files {
bar.Increment()
anotherResults, anotherMetadata, errs := loadMessage(fileName, &repos)
if anotherMetadata != nil {
mergeErrs := mergeResults(mergedResults, mergedMetadata, anotherResults, anotherMetadata, only)
for _, err := range mergeErrs {
errs = append(errs, err.Error())
}
}
allErrors[fileName] = errs
debug.FreeOSMemory()
}
bar.Finish()
os.Stderr.WriteString("\033[2K\r")
printErrors(allErrors)
sort.Strings(repos)
if mergedMetadata == nil {
return
}
mergedMessage := pb.AnalysisResults{
Header: &pb.Metadata{
Version: int32(hercules.BinaryVersion),
Hash: hercules.BinaryGitHash,
Repository: strings.Join(repos, " & "),
},
Contents: map[string][]byte{},
}
mergedMetadata.FillMetadata(mergedMessage.Header)
for key, val := range mergedResults {
buffer := bytes.Buffer{}
err := hercules.Registry.Summon(key)[0].(hercules.LeafPipelineItem).Serialize(
val, true, &buffer)
if err != nil {
panic(err)
}
mergedMessage.Contents[key] = buffer.Bytes()
}
serialized, err := proto.Marshal(&mergedMessage)
if err != nil {
panic(err)
}
os.Stdout.Write(serialized)
},
}
func loadMessage(fileName string, repos *[]string) (
map[string]interface{}, *hercules.CommonAnalysisResult, []string) {
var errs []string
fi, err := os.Stat(fileName)
if err != nil {
errs = append(errs, "Cannot access "+fileName+": "+err.Error())
return nil, nil, errs
}
if fi.Size() == 0 {
errs = append(errs, "Cannot parse "+fileName+": file size is 0")
return nil, nil, errs
}
buffer, err := ioutil.ReadFile(fileName)
if err != nil {
errs = append(errs, "Cannot read "+fileName+": "+err.Error())
return nil, nil, errs
}
message := pb.AnalysisResults{}
err = proto.Unmarshal(buffer, &message)
if err != nil {
errs = append(errs, "Cannot parse "+fileName+": "+err.Error())
return nil, nil, errs
}
if message.Header == nil {
errs = append(errs, "Cannot parse "+fileName+": corrupted header")
return nil, nil, errs
}
*repos = append(*repos, message.Header.Repository)
results := map[string]interface{}{}
for key, val := range message.Contents {
summoned := hercules.Registry.Summon(key)
if len(summoned) == 0 {
errs = append(errs, fileName+": item not found: "+key)
continue
}
mpi, ok := summoned[0].(hercules.ResultMergeablePipelineItem)
if !ok {
errs = append(errs, fileName+": "+key+": ResultMergeablePipelineItem is not implemented")
continue
}
msg, err := mpi.Deserialize(val)
if err != nil {
errs = append(errs, fileName+": deserialization failed: "+key+": "+err.Error())
continue
}
results[key] = msg
}
return results, hercules.MetadataToCommonAnalysisResult(message.Header), errs
}
func printErrors(allErrors map[string][]string) {
needToPrintErrors := false
for _, errs := range allErrors {
if len(errs) > 0 {
needToPrintErrors = true
break
}
}
if !needToPrintErrors {
return
}
fmt.Fprintln(os.Stderr, "Errors:")
for key, errs := range allErrors {
if len(errs) > 0 {
fmt.Fprintln(os.Stderr, " "+key)
for _, err := range errs {
fmt.Fprintln(os.Stderr, " "+err)
}
}
}
}
func mergeResults(mergedResults map[string]interface{},
mergedCommons *hercules.CommonAnalysisResult,
anotherResults map[string]interface{},
anotherCommons *hercules.CommonAnalysisResult,
only string) []error {
var errors []error
for key, val := range anotherResults {
if only != "" && key != only {
continue
}
mergedResult, exists := mergedResults[key]
if !exists {
mergedResults[key] = val
continue
}
item := hercules.Registry.Summon(key)[0].(hercules.ResultMergeablePipelineItem)
mergedResult = item.MergeResults(mergedResult, val, mergedCommons, anotherCommons)
if err, isErr := mergedResult.(error); isErr {
errors = append(errors, fmt.Errorf("could not merge %s: %v", item.Name(), err))
} else {
mergedResults[key] = mergedResult
}
}
if mergedCommons.CommitsNumber == 0 {
*mergedCommons = *anotherCommons
} else {
mergedCommons.Merge(anotherCommons)
}
return errors
}
func getOptionsString() string {
var leaves []string
for _, leaf := range hercules.Registry.GetLeaves() {
leaves = append(leaves, leaf.Name())
}
return strings.Join(leaves, ", ")
}
func init() {
rootCmd.AddCommand(combineCmd)
combineCmd.SetUsageFunc(combineCmd.UsageFunc())
combineCmd.Flags().String("only", "", "Consider only the specified analysis. "+
"Empty means all available. Choices: "+getOptionsString()+".")
}