mirror of
https://github.com/restic/restic.git
synced 2024-09-05 19:09:24 +02:00
71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
|
package fstestutil
|
||
|
|
||
|
import (
|
||
|
"fmt"
|
||
|
"io/ioutil"
|
||
|
"os"
|
||
|
)
|
||
|
|
||
|
// FileInfoCheck is a function that validates an os.FileInfo according
|
||
|
// to some criteria.
|
||
|
type FileInfoCheck func(fi os.FileInfo) error
|
||
|
|
||
|
type checkDirError struct {
|
||
|
missing map[string]struct{}
|
||
|
extra map[string]os.FileMode
|
||
|
}
|
||
|
|
||
|
func (e *checkDirError) Error() string {
|
||
|
return fmt.Sprintf("wrong directory contents: missing %v, extra %v", e.missing, e.extra)
|
||
|
}
|
||
|
|
||
|
// CheckDir checks the contents of the directory at path, making sure
|
||
|
// every directory entry listed in want is present. If the check is
|
||
|
// not nil, it must also pass.
|
||
|
//
|
||
|
// If want contains the impossible filename "", unexpected files are
|
||
|
// checked with that. If the key is not in want, unexpected files are
|
||
|
// an error.
|
||
|
//
|
||
|
// Missing entries, that are listed in want but not seen, are an
|
||
|
// error.
|
||
|
func CheckDir(path string, want map[string]FileInfoCheck) error {
|
||
|
problems := &checkDirError{
|
||
|
missing: make(map[string]struct{}, len(want)),
|
||
|
extra: make(map[string]os.FileMode),
|
||
|
}
|
||
|
for k := range want {
|
||
|
if k == "" {
|
||
|
continue
|
||
|
}
|
||
|
problems.missing[k] = struct{}{}
|
||
|
}
|
||
|
|
||
|
fis, err := ioutil.ReadDir(path)
|
||
|
if err != nil {
|
||
|
return fmt.Errorf("cannot read directory: %v", err)
|
||
|
}
|
||
|
|
||
|
for _, fi := range fis {
|
||
|
check, ok := want[fi.Name()]
|
||
|
if !ok {
|
||
|
check, ok = want[""]
|
||
|
}
|
||
|
if !ok {
|
||
|
problems.extra[fi.Name()] = fi.Mode()
|
||
|
continue
|
||
|
}
|
||
|
delete(problems.missing, fi.Name())
|
||
|
if check != nil {
|
||
|
if err := check(fi); err != nil {
|
||
|
return fmt.Errorf("check failed: %v: %v", fi.Name(), err)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if len(problems.missing) > 0 || len(problems.extra) > 0 {
|
||
|
return problems
|
||
|
}
|
||
|
return nil
|
||
|
}
|