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package drive
import (
"fmt"
"google.golang.org/api/drive/v3"
"io"
"text/tabwriter"
)
type ListChangesArgs struct {
Out io.Writer
PageToken string
MaxChanges int64
Now bool
NameWidth int64
SkipHeader bool
}
func (self *Drive) ListChanges(args ListChangesArgs) error {
if args.Now {
pageToken, err := self.GetChangesStartPageToken()
if err != nil {
return err
}
fmt.Fprintf(args.Out, "Page token: %s\n", pageToken)
return nil
}
changeList, err := self.service.Changes.List(args.PageToken).PageSize(args.MaxChanges).RestrictToMyDrive(true).Fields("newStartPageToken", "nextPageToken", "changes(fileId,removed,time,file(id,name,md5Checksum,mimeType,createdTime,modifiedTime))").Do()
if err != nil {
return fmt.Errorf("Failed listing changes: %s", err)
}
PrintChanges(PrintChangesArgs{
Out: args.Out,
ChangeList: changeList,
NameWidth: int(args.NameWidth),
SkipHeader: args.SkipHeader,
})
return nil
}
func (self *Drive) GetChangesStartPageToken() (string, error) {
res, err := self.service.Changes.GetStartPageToken().Do()
if err != nil {
return "", fmt.Errorf("Failed getting start page token: %s", err)
}
return res.StartPageToken, nil
}
type PrintChangesArgs struct {
Out io.Writer
ChangeList *drive.ChangeList
NameWidth int
SkipHeader bool
}
func PrintChanges(args PrintChangesArgs) {
w := new(tabwriter.Writer)
w.Init(args.Out, 0, 0, 3, ' ', 0)
if !args.SkipHeader {
fmt.Fprintln(w, "Id\tName\tAction\tTime")
}
for _, c := range args.ChangeList.Changes {
var name string
var action string
if c.Removed {
action = "remove"
} else {
name = c.File.Name
action = "update"
}
fmt.Fprintf(w, "%s\t%s\t%s\t%s\n",
c.FileId,
truncateString(name, args.NameWidth),
action,
formatDatetime(c.Time),
)
}
if len(args.ChangeList.Changes) > 0 {
w.Flush()
pageToken, hasMore := nextChangesPageToken(args.ChangeList)
fmt.Fprintf(args.Out, "\nToken: %s, more: %t\n", pageToken, hasMore)
} else {
fmt.Fprintln(args.Out, "No changes")
}
}
func nextChangesPageToken(cl *drive.ChangeList) (string, bool) {
if cl.NextPageToken != "" {
return cl.NextPageToken, true
}
return cl.NewStartPageToken, false
}
|
