func listValuesForTag(store *storage.Storage, tagName string, showCount, onePerLine bool) error {
tag, err := store.TagByName(tagName)
if err != nil {
return fmt.Errorf("could not retrieve tag '%v': %v", tagName, err)
}
if tag == nil {
return fmt.Errorf("no such tag, '%v'.", tagName)
}
log.Infof(2, "retrieving values for tag '%v'.", tagName)
values, err := store.ValuesByTag(tag.Id)
if err != nil {
return fmt.Errorf("could not retrieve values for tag '%v': %v", tagName, err)
}
if showCount {
fmt.Println(len(values))
} else {
if onePerLine {
for _, value := range values {
fmt.Println(value.Name)
}
} else {
valueNames := make([]string, len(values))
for index, value := range values {
valueNames[index] = value.Name
}
format.Columns(valueNames, terminalWidth())
}
}
return nil
}
func getOrCreateTag(store *storage.Storage, tagName string) (*entities.Tag, error) {
tag, err := store.TagByName(tagName)
if err != nil {
return nil, fmt.Errorf("could not look up tag '%v': %v", tagName, err)
}
if tag == nil {
tag, err = store.AddTag(tagName)
if err != nil {
return nil, fmt.Errorf("could not create tag '%v': %v", tagName, err)
}
log.Warnf("New tag '%v'.", tagName)
}
return tag, nil
}
func listValuesForTags(store *storage.Storage, tagNames []string, showCount, onePerLine bool) error {
wereErrors := false
for _, tagName := range tagNames {
tag, err := store.TagByName(tagName)
if err != nil {
return fmt.Errorf("could not retrieve tag '%v': %v", tagName, err)
}
if tag == nil {
log.Warnf("no such tag, '%v'.", tagName)
wereErrors = true
continue
}
log.Infof(2, "retrieving values for tag '%v'.", tagName)
values, err := store.ValuesByTag(tag.Id)
if err != nil {
return fmt.Errorf("could not retrieve values for tag '%v': %v", tagName, err)
}
if showCount {
fmt.Printf("%v: %v\n", tagName, len(values))
} else {
if onePerLine {
fmt.Println(tagName)
for _, value := range values {
fmt.Println(value.Name)
}
fmt.Println()
} else {
valueNames := make([]string, len(values))
for index, value := range values {
valueNames[index] = value.Name
}
fmt.Printf("%v: %v\n", tagName, strings.Join(valueNames, " "))
}
}
}
if wereErrors {
return blankError
}
return nil
}
func (command DeleteCommand) deleteTag(store *storage.Storage, tagName string) error {
tag, err := store.TagByName(tagName)
if err != nil {
return fmt.Errorf("could not retrieve tag '%v': %v", tagName, err)
}
if tag == nil {
return fmt.Errorf("no such tag '%v'.", tagName)
}
if command.verbose {
log.Infof("finding files tagged '%v'.", tagName)
}
fileTags, err := store.FileTagsByTagId(tag.Id)
if err != nil {
return fmt.Errorf("could not retrieve taggings for tag '%v': %v", tagName, err)
}
if command.verbose {
log.Infof("removing applications of tag '%v'.", tagName)
}
err = store.RemoveFileTagsByTagId(tag.Id)
if err != nil {
return fmt.Errorf("could not remove taggings for tag '%v': %v", tagName, err)
}
if command.verbose {
log.Infof("removing tags implications involving tag '%v'.", tagName)
}
err = store.RemoveImplicationsForTagId(tag.Id)
if err != nil {
return fmt.Errorf("could not remove tag implications involving tag '%v': %v", tagName, err)
}
if command.verbose {
log.Infof("deleting tag '%v'.", tagName)
}
err = store.DeleteTag(tag.Id)
if err != nil {
return fmt.Errorf("could not delete tag '%v': %v", tagName, err)
}
if command.verbose {
log.Infof("identifying files left untagged as a result of tag deletion.")
}
removedFileCount := 0
for _, fileTag := range fileTags {
count, err := store.FileTagCountByFileId(fileTag.FileId)
if err != nil {
return fmt.Errorf("could not retrieve taggings count for file #%v: %v", fileTag.FileId, err)
}
if count == 0 {
err := store.RemoveFile(fileTag.FileId)
if err != nil {
return fmt.Errorf("could not remove file #%v: %v", fileTag.FileId, err)
}
removedFileCount += 1
}
}
if command.verbose {
log.Infof("removed %v untagged files.", removedFileCount)
}
return nil
}
