func LoadDockerPatterns(path string) ([]string, error) {
var excludes []string
reader, err := os.Open(fmt.Sprintf("%s/.dockerignore", path))
if err != nil {
if os.IsNotExist(err) {
return excludes, nil
}
return excludes, nil
}
if reader == nil {
return excludes, nil
}
defer reader.Close()
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
pattern := strings.TrimSpace(scanner.Text())
if pattern == "" {
continue
}
pattern = filepath.Clean(pattern)
pattern = filepath.ToSlash(pattern)
excludes = append(excludes, pattern)
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("Error reading .dockerignore: %v", err)
}
return excludes, nil
}
// ReadIgnore reads a .dockerignore file and returns the list of file patterns
// to ignore. Note this will trim whitespace from each line as well
// as use GO's "clean" func to get the shortest/cleanest path for each.
func ReadIgnore(reader io.ReadCloser) ([]string, error) {
if reader == nil {
return nil, nil
}
defer reader.Close()
scanner := bufio.NewScanner(reader)
var excludes []string
for scanner.Scan() {
pattern := strings.TrimSpace(scanner.Text())
if empty(pattern) {
continue
}
pattern = filepath.Clean(pattern)
excludes = append(excludes, pattern)
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("Error reading .dockerignore: %v", err)
}
return excludes, nil
}