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version: allow specifying the normalization alphabet

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This commit is contained in:
Oliver Gugger 2020-11-06 10:43:01 +01:00
parent 58c1c25a8b
commit e6e533aeda
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1 changed files with 9 additions and 9 deletions
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18
version.go
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@ -15,7 +15,9 @@ import (
// using the -ldflags during compilation.
var Commit string
// semanticAlphabet
// semanticAlphabet is the allowed characters from the semantic versioning
// guidelines for pre-release version and build metadata strings. In particular
// they MUST only contain characters in semanticAlphabet.
const semanticAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-"
// These constants define the application version and follow the semantic
@ -63,11 +65,11 @@ func semanticVersion() string {
// Start with the major, minor, and patch versions.
version := fmt.Sprintf("%d.%d.%d", appMajor, appMinor, appPatch)
// Append pre-release version if there is one. The hyphen called for
// Append pre-release version if there is one. The hyphen called for
// by the semantic versioning spec is automatically appended and should
// not be contained in the pre-release string. The pre-release version
// not be contained in the pre-release string. The pre-release version
// is not appended if it contains invalid characters.
preRelease := normalizeVerString(appPreRelease)
preRelease := normalizeVerString(appPreRelease, semanticAlphabet)
if preRelease != "" {
version = fmt.Sprintf("%s-%s", version, preRelease)
}
@ -76,13 +78,11 @@ func semanticVersion() string {
}
// normalizeVerString returns the passed string stripped of all characters
// which are not valid according to the semantic versioning guidelines for
// pre-release version and build metadata strings. In particular they MUST
// only contain characters in semanticAlphabet.
func normalizeVerString(str string) string {
// which are not valid according to the given alphabet.
func normalizeVerString(str, alphabet string) string {
var result bytes.Buffer
for _, r := range str {
if strings.ContainsRune(semanticAlphabet, r) {
if strings.ContainsRune(alphabet, r) {
result.WriteRune(r)
}
}