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util.go
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util.go
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package rotatefile
import (
"compress/gzip"
"io"
"os"
"github.com/gookit/goutil/fsutil"
)
const compressSuffix = ".gz"
func compressFile(srcPath, dstPath string) error {
srcFile, err := os.OpenFile(srcPath, os.O_RDONLY, 0)
if err != nil {
return err
}
defer srcFile.Close()
// create and open a gz file
gzFile, err := fsutil.QuickOpenFile(dstPath)
if err != nil {
return err
}
defer gzFile.Close()
zw := gzip.NewWriter(gzFile)
fileSt, err := srcFile.Stat()
if err != nil {
return err
}
zw.Name = fileSt.Name()
zw.ModTime = fileSt.ModTime()
if _, err = io.Copy(zw, srcFile); err != nil {
return err
}
return zw.Close()
}
type filterFunc func(fPath string, fi os.FileInfo) bool
type handleFunc func(fPath string, fi os.FileInfo) error
// from the go pkg: path/filepath.glob()
func findFilesInDir(dir string, handleFn handleFunc, filters ...filterFunc) (err error) {
fi, err := os.Stat(dir)
if err != nil {
return // ignore I/O error
}
if !fi.IsDir() {
return // ignore I/O error
}
d, err := os.Open(dir)
if err != nil {
return // ignore I/O error
}
defer d.Close()
// names, _ := d.Readdirnames(-1)
// sort.Strings(names)
stats, _ := d.Readdir(-1)
for _, fi := range stats {
baseName := fi.Name()
filePath := dir + baseName
// call filters
if len(filters) > 0 {
var filtered = false
for _, filter := range filters {
if !filter(filePath, fi) {
filtered = true
break
}
}
if filtered {
continue
}
}
if err := handleFn(filePath, fi); err != nil {
return err
}
}
return nil
}