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unarchive.go
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unarchive.go
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package utils
import (
"archive/tar"
"archive/zip"
"compress/gzip"
"io"
"net/http"
"os"
"path/filepath"
"strings"
)
func IsTarGz(name string) bool {
buffer, err := readData(name)
if err != nil && err != io.EOF {
return false
}
if err != nil && err != io.EOF {
return false
}
if contentType := http.DetectContentType(buffer); contentType != "application/x-gzip" {
return false
}
return true
}
func IsZip(name string) bool {
buffer, err := readData(name)
if err != nil && err != io.EOF {
return false
}
if contentType := http.DetectContentType(buffer); contentType != "application/zip" {
return false
}
return true
}
func IsYaml(name string) bool {
buffer, err := readData(name)
if err != nil && err != io.EOF {
return false
}
if contentType := http.DetectContentType(buffer); !strings.Contains(contentType, "text/plain") {
return false
}
return true
}
func readData(name string) (buffer []byte, err error) {
raw, err := os.Open(name)
if err != nil {
return
}
defer func() {
_ = raw.Close()
_, _ = raw.Seek(0, 0)
}()
buffer = make([]byte, 512)
_, err = raw.Read(buffer)
if err != nil {
return
}
return
}
func ExtractZip(path, artifactPath string) error {
zipReader, err := zip.OpenReader(artifactPath)
defer func() {
_ = zipReader.Close()
}()
if err != nil {
return ErrExtractZip(err, path)
}
buffer := make([]byte, 1<<4)
for _, file := range zipReader.File {
fd, err := file.Open()
defer func() {
_ = fd.Close()
}()
if err != nil {
return ErrExtractZip(err, path)
}
filePath := filepath.Join(path, file.Name)
if file.FileInfo().IsDir() {
err := os.Mkdir(file.Name, file.Mode())
if err != nil {
return ErrExtractZip(err, path)
}
} else {
openedFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
if err != nil {
return ErrExtractZip(err, path)
}
_, err = io.CopyBuffer(openedFile, fd, buffer)
if err != nil {
return ErrExtractZip(err, path)
}
defer func() {
_ = openedFile.Close()
}()
}
}
return nil
}
func ExtractTarGz(path, downloadfilePath string) error {
gzipStream, err := os.Open(downloadfilePath)
if err != nil {
return ErrReadFile(err, downloadfilePath)
}
uncompressedStream, err := gzip.NewReader(gzipStream)
if err != nil {
return ErrExtractTarXZ(err, path)
}
defer func() {
_ = uncompressedStream.Close()
_ = gzipStream.Close()
}()
tarReader := tar.NewReader(uncompressedStream)
if err != nil {
return ErrExtractTarXZ(err, path)
}
for {
header, err := tarReader.Next()
if err == io.EOF {
break
}
if err != nil {
return ErrExtractTarXZ(err, path)
}
switch header.Typeflag {
case tar.TypeDir:
if err = os.MkdirAll(filepath.Join(path, header.Name), 0755); err != nil {
return ErrExtractTarXZ(err, path)
}
case tar.TypeReg:
_ = os.MkdirAll(filepath.Join(path, filepath.Dir(header.Name)), 0755)
var outFile *os.File
outFile, err = os.Create(filepath.Join(path, header.Name))
if err != nil {
return ErrExtractTarXZ(err, path)
}
if _, err = io.Copy(outFile, tarReader); err != nil {
return ErrExtractTarXZ(err, path)
}
outFile.Close()
default:
return ErrExtractTarXZ(err, path)
}
}
return nil
}
func ProcessContent(filePath string, f func(path string) error) error {
pathInfo, err := os.Stat(filePath)
if err != nil {
return ErrReadDir(err, filePath)
}
if pathInfo.IsDir() {
entries, err := os.ReadDir(filePath)
if err != nil {
return ErrReadDir(err, filePath)
}
for _, entry := range entries {
err := f(filepath.Join(filePath, entry.Name()))
if err != nil {
return err
}
}
} else {
err := f(filePath)
if err != nil {
return err
}
}
return nil
}