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semver.go
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semver.go
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package tplfuncs
import (
"fmt"
htmlTemplate "html/template"
textTemplate "text/template"
"github.com/Masterminds/semver"
"github.com/juju/errors"
)
// SemverHelpers returns a text template FuncMap with semver related functions
func SemverHelpers() textTemplate.FuncMap {
return textTemplate.FuncMap{
"parseSemver": parseSemverFunc,
"semverToMinor": semverToMinorFunc,
"semverToMajor": semverToMajorFunc,
}
}
// SemverHelpersHTML returns an HTML template FuncMap with semver related functions
func SemverHelpersHTML() htmlTemplate.FuncMap {
return htmlTemplate.FuncMap(SemverHelpers())
}
// Doc: `parseSemver` converts a string to a *semver.Version.
func parseSemverFunc(semverString string) (*semver.Version, error) {
s, err := semver.NewVersion(semverString)
if err != nil {
return nil, errors.Annotatef(err, "invalid version: '%s'", semverString)
}
return s, nil
}
// Doc: `semverToMajor` converts a string to the major version part of a *semver.Version.
func semverToMajorFunc(semverString string) (string, error) {
s, err := semver.NewVersion(semverString)
if err != nil {
return "", errors.Annotatef(err, "invalid version: '%s'", semverString)
}
return fmt.Sprintf("%d", s.Major()), nil
}
// Doc: `semverToMinor` converts a string to the major.minor version part of a *semver.Version.
func semverToMinorFunc(semverString string) (string, error) {
s, err := semver.NewVersion(semverString)
if err != nil {
return "", errors.Annotatef(err, "invalid version: '%s'", semverString)
}
return fmt.Sprintf("%d.%d", s.Major(), s.Minor()), nil
}