-
Notifications
You must be signed in to change notification settings - Fork 0
/
information.go
57 lines (46 loc) · 1.64 KB
/
information.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
package fileupload
import (
"os"
"github.com/pkg/errors" // external dependency
)
/*
Loop through a directory and return a slice of structs with information about all the files in said directory
includeMimeType - flag, whether or not to include each file's mimetype, the operation takes more processing of the files
*/
func GetDirectoryContentsData(directory string, includeMimeType bool) ([]FileInfo, error) {
var fis []FileInfo
if _, err := os.Stat(directory); os.IsNotExist(err) { // check if the directory exists
return nil, ErrDirectoryDoesNotExist
}
var file *os.File
var err error
if file, err = os.Open(directory); err != nil { // open the directory
return nil, errors.Wrap(err, "GetDirectoryContentsData()")
}
if includeMimeType { // will have to open each file to examine first bytes
fileSlice, _ := file.Readdir(0)
for _, fi := range fileSlice {
if fi.IsDir() == false {
file, err := os.Open(directory + string(os.PathSeparator) + fi.Name())
if err != nil { // check for error
return nil, errors.Wrap(err, "GetDirectoryContentsData()")
}
defer file.Close()
mimetype, err := getMimeType(file)
if err != nil { // check for error
return nil, errors.Wrap(err, "GetDirectoryContentsData()")
}
fis = append(fis, FileInfo{Name: fi.Name(), Size: fi.Size(), Directory: directory, MimeType: mimetype, IsImage: isFileImage(mimetype)})
}
}
return fis, nil
}
// includeMimeType flag is false
fileSlice, _ := file.Readdir(0)
for _, fi := range fileSlice {
if fi.IsDir() == false {
fis = append(fis, FileInfo{Name: fi.Name(), Size: fi.Size(), Directory: directory})
}
}
return fis, nil
}