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fileinfo.go
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fileinfo.go
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package experimental
import (
"io/ioutil"
"os"
"github.com/grafana/grafana-plugin-sdk-go/data"
)
func GetDirectoryFrame(p string, details bool) (*data.Frame, error) {
// Name() string // base name of the file
// Size() int64 // length in bytes for regular files; system-dependent for others
// Mode() FileMode // file mode bits
// ModTime() time.Time // modification time
// IsDir() bool // abbreviation for Mode().IsDir()
files, err := ioutil.ReadDir(p)
if err != nil {
return nil, err
}
count := len(files)
names := data.NewFieldFromFieldType(data.FieldTypeString, count)
mtype := data.NewFieldFromFieldType(data.FieldTypeString, count)
size := data.NewFieldFromFieldType(data.FieldTypeInt64, count)
modified := data.NewFieldFromFieldType(data.FieldTypeTime, count)
names.Name = "name"
mtype.Name = "media-type"
size.Name = "size"
size.Config = &data.FieldConfig{
Unit: "bytes",
}
modified.Name = "modified"
for i, file := range files {
names.Set(i, file.Name())
mediaType := ""
if file.IsDir() {
mediaType = "directory"
} // TODO guess from extension?
mtype.Set(i, mediaType)
if details {
size.Set(i, file.Size())
modified.Set(i, file.ModTime())
}
}
frame := data.NewFrame("", names, mtype)
frame.SetMeta(&data.FrameMeta{
PathSeparator: string(os.PathSeparator),
Type: data.FrameTypeDirectoryListing,
})
if details {
frame.Fields = append(frame.Fields, size)
frame.Fields = append(frame.Fields, modified)
}
return frame, nil
}