386 lines
8.6 KiB
Go
386 lines
8.6 KiB
Go
package main
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"encoding/json"
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
"sort"
|
|
"strings"
|
|
|
|
"github.com/go-enry/go-enry/v2"
|
|
"github.com/go-enry/go-enry/v2/data"
|
|
)
|
|
|
|
var (
|
|
version = "undefined"
|
|
build = "undefined"
|
|
commit = "undefined"
|
|
)
|
|
|
|
func main() {
|
|
flag.Usage = usage
|
|
breakdownFlag := flag.Bool("breakdown", false, "")
|
|
jsonFlag := flag.Bool("json", false, "")
|
|
showVersion := flag.Bool("version", false, "Show the enry version information")
|
|
allLangs := flag.Bool("all", false, "Show all files, including those identifed as non-programming languages")
|
|
countMode := flag.String("mode", "byte", "the method used to count file size. Available options are: file, line and byte")
|
|
limitKB := flag.Int64("limit", 16*1024, "Analyse first N KB of the file (-1 means no limit)")
|
|
flag.Parse()
|
|
limit := (*limitKB) * 1024
|
|
|
|
if *showVersion {
|
|
fmt.Println(version)
|
|
return
|
|
}
|
|
|
|
root, err := filepath.Abs(flag.Arg(0))
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
fileInfo, err := os.Stat(root)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
if fileInfo.Mode().IsRegular() {
|
|
err = printFileAnalysis(root, limit, *jsonFlag)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
}
|
|
return
|
|
}
|
|
|
|
out := make(map[string][]string, 0)
|
|
err = filepath.Walk(root, func(path string, f os.FileInfo, err error) error {
|
|
if err != nil {
|
|
log.Println(err)
|
|
return filepath.SkipDir
|
|
}
|
|
|
|
if !f.Mode().IsDir() && !f.Mode().IsRegular() {
|
|
return nil
|
|
}
|
|
|
|
relativePath, err := filepath.Rel(root, path)
|
|
if err != nil {
|
|
log.Println(err)
|
|
return nil
|
|
}
|
|
|
|
if relativePath == "." {
|
|
return nil
|
|
}
|
|
|
|
if f.IsDir() {
|
|
relativePath = relativePath + "/"
|
|
}
|
|
|
|
if enry.IsVendor(relativePath) || enry.IsDotFile(relativePath) ||
|
|
enry.IsDocumentation(relativePath) || enry.IsConfiguration(relativePath) {
|
|
// TODO(bzz): skip enry.IsGeneratedPath() after https://github.com/src-d/enry/issues/213
|
|
if f.IsDir() {
|
|
return filepath.SkipDir
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
if f.IsDir() {
|
|
return nil
|
|
}
|
|
|
|
// TODO(bzz): provide API that mimics lingust CLI output for
|
|
// - running ByExtension & ByFilename
|
|
// - reading the file, if that did not work
|
|
// - GetLanguage([]Strategy)
|
|
content, err := readFile(path, limit)
|
|
if err != nil {
|
|
log.Println(err)
|
|
return nil
|
|
}
|
|
// TODO(bzz): skip enry.IsGeneratedContent() as well, after https://github.com/src-d/enry/issues/213
|
|
|
|
language := enry.GetLanguage(filepath.Base(path), content)
|
|
if language == enry.OtherLanguage {
|
|
return nil
|
|
}
|
|
|
|
// If we are not asked to display all, do as
|
|
// https://github.com/github/linguist/blob/bf95666fc15e49d556f2def4d0a85338423c25f3/lib/linguist/blob_helper.rb#L382
|
|
if !*allLangs &&
|
|
enry.GetLanguageType(language) != enry.Programming &&
|
|
enry.GetLanguageType(language) != enry.Markup {
|
|
return nil
|
|
}
|
|
|
|
out[language] = append(out[language], relativePath)
|
|
return nil
|
|
})
|
|
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
switch {
|
|
case *jsonFlag && !*breakdownFlag:
|
|
printJson(out, &buf)
|
|
case *jsonFlag && *breakdownFlag:
|
|
printBreakDown(out, &buf)
|
|
case *breakdownFlag:
|
|
printPercents(root, out, &buf, *countMode)
|
|
buf.WriteByte('\n')
|
|
printBreakDown(out, &buf)
|
|
default:
|
|
printPercents(root, out, &buf, *countMode)
|
|
}
|
|
|
|
fmt.Print(buf.String())
|
|
}
|
|
|
|
func usage() {
|
|
fmt.Fprintf(
|
|
os.Stderr,
|
|
` %[1]s %[2]s build: %[3]s commit: %[4]s, based on linguist commit: %[5]s
|
|
%[1]s, A simple (and faster) implementation of github/linguist
|
|
usage: %[1]s [-mode=(file|line|byte)] [-prog] <path>
|
|
%[1]s [-mode=(file|line|byte)] [-prog] [-json] [-breakdown] <path>
|
|
%[1]s [-mode=(file|line|byte)] [-prog] [-json] [-breakdown]
|
|
%[1]s [-version]
|
|
`,
|
|
os.Args[0], version, build, commit, data.LinguistCommit[:7],
|
|
)
|
|
}
|
|
|
|
func printBreakDown(out map[string][]string, buff *bytes.Buffer) {
|
|
for name, language := range out {
|
|
fmt.Fprintln(buff, name)
|
|
for _, file := range language {
|
|
fmt.Fprintln(buff, file)
|
|
}
|
|
|
|
fmt.Fprintln(buff)
|
|
}
|
|
}
|
|
|
|
func printJson(out map[string][]string, buf *bytes.Buffer) {
|
|
json.NewEncoder(buf).Encode(out)
|
|
}
|
|
|
|
// filelistError represents a failed operation that took place across multiple files.
|
|
type filelistError []string
|
|
|
|
func (e filelistError) Error() string {
|
|
return fmt.Sprintf("Could not process the following files:\n%s", strings.Join(e, "\n"))
|
|
}
|
|
|
|
func printPercents(root string, fSummary map[string][]string, buff *bytes.Buffer, mode string) {
|
|
// Select the way we quantify 'amount' of code.
|
|
reducer := fileCountValues
|
|
switch mode {
|
|
case "file":
|
|
reducer = fileCountValues
|
|
case "line":
|
|
reducer = lineCountValues
|
|
case "byte":
|
|
reducer = byteCountValues
|
|
}
|
|
|
|
// Reduce the list of files to a quantity of file type.
|
|
var (
|
|
total float64
|
|
keys []string
|
|
unreadableFiles filelistError
|
|
fileValues = make(map[string]float64)
|
|
)
|
|
for fType, files := range fSummary {
|
|
val, err := reducer(root, files)
|
|
if err != nil {
|
|
unreadableFiles = append(unreadableFiles, err...)
|
|
}
|
|
fileValues[fType] = val
|
|
keys = append(keys, fType)
|
|
total += val
|
|
}
|
|
|
|
// Slice the keys by their quantity (file count, line count, byte size, etc.).
|
|
sort.Slice(keys, func(i, j int) bool {
|
|
return fileValues[keys[i]] > fileValues[keys[j]]
|
|
})
|
|
|
|
// Calculate and write percentages of each file type.
|
|
for _, fType := range keys {
|
|
val := fileValues[fType]
|
|
percent := val / total * 100.0
|
|
buff.WriteString(fmt.Sprintf("%.2f%%\t%s\n", percent, fType))
|
|
if unreadableFiles != nil {
|
|
buff.WriteString(fmt.Sprintf("\n%s", unreadableFiles.Error()))
|
|
}
|
|
}
|
|
}
|
|
|
|
func fileCountValues(_ string, files []string) (float64, filelistError) {
|
|
return float64(len(files)), nil
|
|
}
|
|
|
|
func lineCountValues(root string, files []string) (float64, filelistError) {
|
|
var filesErr filelistError
|
|
var t float64
|
|
for _, fName := range files {
|
|
l, _ := getLines(filepath.Join(root, fName), nil)
|
|
t += float64(l)
|
|
}
|
|
return t, filesErr
|
|
}
|
|
|
|
func byteCountValues(root string, files []string) (float64, filelistError) {
|
|
var filesErr filelistError
|
|
var t float64
|
|
for _, fName := range files {
|
|
f, err := os.Open(filepath.Join(root, fName))
|
|
if err != nil {
|
|
filesErr = append(filesErr, fName)
|
|
continue
|
|
}
|
|
fi, err := f.Stat()
|
|
f.Close()
|
|
if err != nil {
|
|
filesErr = append(filesErr, fName)
|
|
continue
|
|
}
|
|
t += float64(fi.Size())
|
|
}
|
|
return t, filesErr
|
|
}
|
|
|
|
func printFileAnalysis(file string, limit int64, isJSON bool) error {
|
|
data, err := readFile(file, limit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
isSample := limit > 0 && len(data) == int(limit)
|
|
|
|
full := data
|
|
if isSample {
|
|
// communicate to getLines that we don't have full contents
|
|
full = nil
|
|
}
|
|
|
|
totalLines, nonBlank := getLines(file, full)
|
|
|
|
// functions below can work on a sample
|
|
fileType := getFileType(file, data)
|
|
language := enry.GetLanguage(file, data)
|
|
mimeType := enry.GetMIMEType(file, language)
|
|
vendored := enry.IsVendor(file)
|
|
|
|
if isJSON {
|
|
return json.NewEncoder(os.Stdout).Encode(map[string]interface{}{
|
|
"filename": filepath.Base(file),
|
|
"lines": nonBlank,
|
|
"total_lines": totalLines,
|
|
"type": fileType,
|
|
"mime": mimeType,
|
|
"language": language,
|
|
"vendored": vendored,
|
|
})
|
|
}
|
|
|
|
fmt.Printf(
|
|
`%s: %d lines (%d sloc)
|
|
type: %s
|
|
mime_type: %s
|
|
language: %s
|
|
vendored: %t
|
|
`,
|
|
filepath.Base(file), totalLines, nonBlank, fileType, mimeType, language, vendored,
|
|
)
|
|
return nil
|
|
}
|
|
|
|
func readFile(path string, limit int64) ([]byte, error) {
|
|
if limit <= 0 {
|
|
return ioutil.ReadFile(path)
|
|
}
|
|
f, err := os.Open(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer f.Close()
|
|
st, err := f.Stat()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
size := st.Size()
|
|
if limit > 0 && size > limit {
|
|
size = limit
|
|
}
|
|
buf := bytes.NewBuffer(nil)
|
|
buf.Grow(int(size))
|
|
_, err = io.Copy(buf, io.LimitReader(f, limit))
|
|
return buf.Bytes(), err
|
|
}
|
|
|
|
func getLines(file string, content []byte) (total, blank int) {
|
|
var r io.Reader
|
|
if content != nil {
|
|
r = bytes.NewReader(content)
|
|
} else {
|
|
// file not loaded to memory - stream it
|
|
f, err := os.Open(file)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
defer f.Close()
|
|
r = f
|
|
}
|
|
br := bufio.NewReader(r)
|
|
lastBlank := true
|
|
empty := true
|
|
for {
|
|
data, prefix, err := br.ReadLine()
|
|
if err == io.EOF {
|
|
break
|
|
} else if err != nil {
|
|
fmt.Println(err)
|
|
break
|
|
}
|
|
if prefix {
|
|
continue
|
|
}
|
|
empty = false
|
|
total++
|
|
lastBlank = len(data) == 0
|
|
if lastBlank {
|
|
blank++
|
|
}
|
|
}
|
|
if !empty && lastBlank {
|
|
total++
|
|
blank++
|
|
}
|
|
nonBlank := total - blank
|
|
return total, nonBlank
|
|
}
|
|
|
|
func getFileType(file string, content []byte) string {
|
|
switch {
|
|
case enry.IsImage(file):
|
|
return "Image"
|
|
case enry.IsBinary(content):
|
|
return "Binary"
|
|
default:
|
|
return "Text"
|
|
}
|
|
}
|