notes-server/notes/search.go

46 lines
849 B
Go

package notes
import (
"bufio"
"bytes"
"local/notes-server/filetree"
"os"
"path/filepath"
)
func (n *Notes) Search(phrase string) (string, error) {
files := filetree.NewFiles()
err := filepath.Walk(n.root,
func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
ok, err := grepFile(path, []byte(phrase))
if ok {
p := filetree.NewPathFromLocal(path)
files.Push(p, info)
}
return err
},
)
return filetree.Paths(*files).List(), err
}
func grepFile(file string, pat []byte) (bool, error) {
f, err := os.Open(file)
if err != nil {
return false, err
}
defer f.Close()
scanner := bufio.NewScanner(f)
for scanner.Scan() {
if bytes.Contains(scanner.Bytes(), pat) {
return true, scanner.Err()
}
}
return false, scanner.Err()
}