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| // This code is available on the terms of the project LICENSE.md file, | ||
| // also available online at https://blueoakcouncil.org/license/1.0.0. | ||
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| package version | ||
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
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| const ( | ||
| // semanticAlphabet defines the allowed characters for the pre-release | ||
| // portion of a semantic version string. | ||
| semanticAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-" | ||
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| // semanticBuildAlphabet defines the allowed characters for the build | ||
| // portion of a semantic version string. | ||
| semanticBuildAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-." | ||
| ) | ||
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| // These constants define the application version and follow the semantic | ||
| // versioning 2.0.0 spec (http://semver.org/). | ||
| const ( | ||
| AppName string = "dexc" | ||
| AppMajor uint = 0 | ||
| AppMinor uint = 1 | ||
| AppPatch uint = 0 | ||
| ) | ||
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| // go build -v -ldflags "-X decred.org/dcrdex/client/cmd/dexc/version.appPreRelease= -X decred.org/dcrdex/client/cmd/dexc/version.appBuild=$(git rev-parse --short HEAD)" | ||
| var ( | ||
| // appPreRelease is defined as a variable so it can be overridden during the | ||
| // build process. It MUST only contain characters from semanticAlphabet per | ||
| // the semantic versioning spec. | ||
| appPreRelease = "pre" | ||
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| // appBuild is defined as a variable so it can be overridden during the | ||
| // build process. It MUST only contain characters from semanticBuildAlphabet | ||
| // per the semantic versioning spec. | ||
| appBuild = "dev" | ||
| ) | ||
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| // Version returns the application version as a properly formed string per the | ||
| // semantic versioning 2.0.0 spec (http://semver.org/). | ||
| func Version() string { | ||
| // Start with the major, minor, and patch versions. | ||
| version := fmt.Sprintf("%d.%d.%d", AppMajor, AppMinor, AppPatch) | ||
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| // 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 | ||
| // is not appended if it contains invalid characters. | ||
| preRelease := normalizePreRelString(appPreRelease) | ||
| if preRelease != "" { | ||
| version = fmt.Sprintf("%s-%s", version, preRelease) | ||
| } | ||
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| // Append build metadata if there is any. The plus called for | ||
| // by the semantic versioning spec is automatically appended and should | ||
| // not be contained in the build metadata string. The build metadata | ||
| // string is not appended if it contains invalid characters. | ||
| build := normalizeBuildString(appBuild) | ||
| if build != "" { | ||
| version = fmt.Sprintf("%s+%s", version, build) | ||
| } | ||
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| return version | ||
| } | ||
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| // normalizeSemString returns the passed string stripped of all characters | ||
| // which are not valid according to the provided semantic versioning alphabet. | ||
| func normalizeSemString(str, alphabet string) string { | ||
| var result bytes.Buffer | ||
| for _, r := range str { | ||
| if strings.ContainsRune(alphabet, r) { | ||
| result.WriteRune(r) | ||
| } | ||
| } | ||
| return result.String() | ||
| } | ||
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| // normalizePreRelString returns the passed string stripped of all characters | ||
| // which are not valid according to the semantic versioning guidelines for | ||
| // pre-release strings. In particular they MUST only contain characters in | ||
| // semanticAlphabet. | ||
| func normalizePreRelString(str string) string { | ||
| return normalizeSemString(str, semanticAlphabet) | ||
| } | ||
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| // normalizeBuildString returns the passed string stripped of all characters | ||
| // which are not valid according to the semantic versioning guidelines for build | ||
| // metadata strings. In particular they MUST only contain characters in | ||
| // semanticBuildAlphabet. | ||
| func normalizeBuildString(str string) string { | ||
| return normalizeSemString(str, semanticBuildAlphabet) | ||
| } |
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