/
zip.go
168 lines (133 loc) · 2.93 KB
/
zip.go
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package zip
import (
libzip "archive/zip"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"time"
"gopkg.in/src-d/go-billy.v4"
)
// find
func Find(basePath, targetDir string) ([]string, error) {
paths := []string{}
if targetDir != "" {
paths = append(paths, targetDir)
}
err := filepath.Walk(basePath+targetDir,
func(path string, info os.FileInfo, err error) error {
rel, err := filepath.Rel(basePath+targetDir, path)
if err != nil {
return err
}
if info.IsDir() {
paths = append(paths, fmt.Sprintf("%s%s/", targetDir, rel))
return nil
}
paths = append(paths, fmt.Sprintf("%s%s", targetDir, rel))
return nil
})
if err != nil {
return nil, err
}
return paths, nil
}
func Compress(compressedFile io.Writer, targetDir string, files []string) error {
w := libzip.NewWriter(compressedFile)
for _, filename := range files {
filepath := fmt.Sprintf("%s%s", targetDir, filename)
info, err := os.Stat(filepath)
if err != nil {
return err
}
if info.IsDir() {
continue
}
hdr, err := libzip.FileInfoHeader(info)
if err != nil {
return err
}
// clear mod time
hdr.SetModTime(time.Unix(0, 0))
hdr.Name = filename
hdr.Method = libzip.Deflate
f, err := w.CreateHeader(hdr)
if err != nil {
return err
}
contents, _ := ioutil.ReadFile(filepath)
_, err = f.Write(contents)
if err != nil {
return err
}
}
if err := w.Close(); err != nil {
return err
}
return nil
}
func FindFromFileSystem(fs billy.Filesystem, basePath, targetDir string) ([]string, error) {
paths := []string{}
if targetDir != "" {
paths = append(paths, targetDir)
}
files, err := fs.ReadDir(basePath + targetDir)
if err != nil {
return nil, err
}
for _, info := range files {
if info.IsDir() {
dirPath := fmt.Sprintf("%s%s/", targetDir, info.Name())
dFiles, err := FindFromFileSystem(fs, basePath, dirPath)
if err != nil {
return nil, err
}
if len(dFiles) > 0 {
paths = append(paths, dFiles...)
}
continue
}
paths = append(paths, fmt.Sprintf("%s%s", targetDir, info.Name()))
}
return paths, nil
}
func CompressFromFileSystem(fs billy.Filesystem, compressedFile io.Writer, targetDir string, files []string) error {
w := libzip.NewWriter(compressedFile)
for _, filename := range files {
filepath := fmt.Sprintf("%s%s", targetDir, filename)
info, err := fs.Stat(filepath)
if err != nil {
return err
}
if info.IsDir() {
continue
}
file, err := fs.Open(filepath)
if err != nil {
return err
}
defer file.Close()
hdr, err := libzip.FileInfoHeader(info)
if err != nil {
return err
}
// clear mod time
hdr.SetModTime(time.Unix(0, 0))
hdr.Name = filename
hdr.Method = libzip.Deflate
f, err := w.CreateHeader(hdr)
if err != nil {
return err
}
contents, _ := ioutil.ReadAll(file)
_, err = f.Write(contents)
if err != nil {
return err
}
}
if err := w.Close(); err != nil {
return err
}
return nil
}