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package writers |
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import ( |
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"fmt" |
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"github.com/vvval/go-metadata-scanner/vars" |
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"os" |
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"strings" |
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) |
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type Writer interface { |
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Open(filename string, headers []string) error |
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Close() error |
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Write(file *vars.File) error |
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} |
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type BaseWriter struct { |
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file *os.File |
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filename string |
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headers []string |
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} |
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func NewWriter(filename string, headers []string) BaseWriter { |
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return BaseWriter{ |
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filename: filename, |
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headers: headers, |
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} |
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} |
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func openFile(filename string) (*os.File, error) { |
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file, err := os.Create(filename) |
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if err != nil { |
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return nil, err |
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} |
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return file, nil |
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} |
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func closeFile(file *os.File) { |
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if file != nil { |
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file.Close() |
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} |
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} |
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func tagsByGroups(f *vars.File, groups []string) map[string]map[string]string { |
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tags := make(map[string]map[string]string) |
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for tag, value := range f.Tags() { |
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for _, group := range groups { |
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if groupPrefixMatch(tag, group) { |
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tagGroup := tagGroup(tag) |
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if _, ok := tags[tagGroup]; !ok { |
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tags[tagGroup] = make(map[string]string) |
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} |
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tags[tagGroup][tagName(tag)] = fmt.Sprintf("%v", value) |
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} |
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} |
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} |
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return tags |
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} |
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func groupPrefixMatch(tag, group string) bool { |
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return strings.HasPrefix(strings.ToLower(tag), strings.ToLower(group)+":") |
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} |
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func tagGroup(tag string) string { |
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return tag[:groupSeparatorPos(tag)] |
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} |
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func tagName(tag string) string { |
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return tag[groupSeparatorPos(tag)+1:] |
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} |
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func groupSeparatorPos(tag string) int { |
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return strings.Index(tag, ":") |
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} |
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vvval /
go-metadata-scanner
