func getSnapshotNames(argNo int) ([]string, error) {
if flag.NArg() > argNo {
// Names of snapshots to leave are given in arguments.
names := make([]string, 0, flag.NArg()-1)
for i := argNo; i < flag.NArg(); i++ {
name := flag.Arg(i)
if !snapshot.IsValidName(name) {
return nil, fmt.Errorf("invalid snapshot name %s", name)
}
names = append(names, name)
}
return names, nil
}
// All snapshots.
return snapshot.GetNames()
}
func listSnapshots() error {
names, err := snapshot.GetNames()
if err != nil {
return err
}
for _, name := range names {
si, err := snapshot.LoadInfo(name)
if err != nil {
return err
}
comment := ""
if si.Comment != "" {
comment = "comment: " + si.Comment + "\n"
}
fmt.Printf("snapshot: %s\ndate: %s\nsource path: %s\nroot ref: %s\n%s\n",
name, si.Time.Local().Format(time.RFC1123), si.SourcePath, si.DirRef, comment)
}
return nil
}
func indexHandler(w http.ResponseWriter, req *http.Request) {
// List snapshots.
names, err := snapshot.GetNames()
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
rows := make([]snapshotDesc, len(names))
for i, name := range names {
var r snapshotDesc
r.Name = name
si, err := snapshot.LoadInfo(name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
r.Comment = si.Comment
r.SourcePath = si.SourcePath
r.Time = si.Time.Local().Format("02 Jan 2006 15:04:05 Mon")
r.DirRef = si.DirRef.String()
r.DirRefPart = r.DirRef[:12] + "…"
rows[len(rows)-1-i] = r // in reverse
}
var b bytes.Buffer
if err := indexTemplate.Execute(&b,
&struct {
Title string
Snapshots []snapshotDesc
}{
"Snapshots",
rows,
}); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
b.WriteTo(w)
}