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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| //go:generate go run github.com/abice/go-enum -f=$GOFILE --marshal --names --values | ||
| package config | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
|
|
||
| const maxTextSourceDisplayLen = 12 | ||
|
|
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| // var BytesSourceNone = BytesSource{} | ||
|
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| // BytesSourceType supported BytesSource types. ENUM( | ||
| // text=1 // Inline YAML block. | ||
| // http // HTTP(S). | ||
| // file // Local file. | ||
| // ) | ||
| type BytesSourceType uint16 | ||
|
|
||
| type BytesSource struct { | ||
| Type BytesSourceType | ||
| From string | ||
| } | ||
|
|
||
| func (s BytesSource) String() string { | ||
| switch s.Type { | ||
| case BytesSourceTypeText: | ||
| break | ||
|
|
||
| case BytesSourceTypeHttp: | ||
| return s.From | ||
|
|
||
| case BytesSourceTypeFile: | ||
| return fmt.Sprintf("file://%s", s.From) | ||
|
|
||
| default: | ||
| return fmt.Sprintf("unknown source (%s: %s)", s.Type, s.From) | ||
| } | ||
|
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| text := s.From | ||
| truncated := false | ||
|
|
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| if idx := strings.IndexRune(text, '\n'); idx != -1 { | ||
| text = text[:idx] // first line only | ||
| truncated = idx < len(text) // don't count removing last char | ||
| } | ||
|
|
||
| if len(text) > maxTextSourceDisplayLen { // truncate | ||
| text = text[:maxTextSourceDisplayLen] | ||
| truncated = true | ||
| } | ||
|
|
||
| if truncated { | ||
| return fmt.Sprintf("%s...", text[:maxTextSourceDisplayLen]) | ||
| } | ||
|
|
||
| return text | ||
| } | ||
|
|
||
| // UnmarshalText implements `encoding.TextUnmarshaler`. | ||
| func (s *BytesSource) UnmarshalText(data []byte) error { | ||
| source := string(data) | ||
|
|
||
| switch { | ||
| // Inline definition in YAML (with literal style Block Scalar) | ||
| case strings.ContainsAny(source, "\n"): | ||
| *s = BytesSource{Type: BytesSourceTypeText, From: source} | ||
|
|
||
| // HTTP(S) | ||
| case strings.HasPrefix(source, "http"): | ||
| *s = BytesSource{Type: BytesSourceTypeHttp, From: source} | ||
|
|
||
| // Probably path to a local file | ||
| default: | ||
| *s = BytesSource{Type: BytesSourceTypeFile, From: strings.TrimPrefix(source, "file://")} | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func newBytesSource(source string) BytesSource { | ||
| var res BytesSource | ||
|
|
||
| // UnmarshalText never returns an error | ||
| _ = res.UnmarshalText([]byte(source)) | ||
|
|
||
| return res | ||
| } | ||
|
|
||
| func NewBytesSources(sources ...string) []BytesSource { | ||
| res := make([]BytesSource, 0, len(sources)) | ||
|
|
||
| for _, source := range sources { | ||
| res = append(res, newBytesSource(source)) | ||
| } | ||
|
|
||
| return res | ||
| } | ||
|
|
||
| func TextBytesSource(lines ...string) BytesSource { | ||
| return BytesSource{Type: BytesSourceTypeText, From: inlineList(lines...)} | ||
| } | ||
|
|
||
| func inlineList(lines ...string) string { | ||
| res := strings.Join(lines, "\n") | ||
|
|
||
| // ensure at least one line ending so it's parsed as an inline block | ||
| res += "\n" | ||
|
|
||
| return res | ||
| } |
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