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version_info.go
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version_info.go
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package ver
import (
"fmt"
"strings"
"github.com/blang/semver"
)
type VersionInformation struct {
Author string
Email string
Website string
Name string
Description string
License string
Major int
Minor int
Hotfix int
Build int
Revision string
BuildTimestamp int
BuildHost string
}
func MakeVersionInformation() *VersionInformation {
return &VersionInformation{
Major: -1,
Minor: -1,
Hotfix: -1,
Build: 0,
}
}
func (vi *VersionInformation) String() string {
return vi.VersionTitle()
}
func (vi *VersionInformation) IsValid() (ok bool, errors []string) {
ok = true
if vi.Author == "" {
ok = false
errors = append(errors, "Author is empty")
}
if vi.Email == "" {
ok = false
errors = append(errors, "E-mail is empty")
}
if vi.Website == "" {
ok = false
errors = append(errors, "Website is empty")
}
if vi.Name == "" {
ok = false
errors = append(errors, "Name is empty")
}
if vi.Description == "" {
ok = false
errors = append(errors, "Description is empty")
}
if vi.License == "" {
ok = false
errors = append(errors, "License is empty")
}
if vi.Major < 0 {
ok = false
errors = append(errors, "Major version < 0")
}
if vi.Minor < 0 {
ok = false
errors = append(errors, "Minor version < 0")
}
if vi.Hotfix < 0 {
ok = false
errors = append(errors, "Hotfix version < 0")
}
if vi.Build < 0 {
ok = false
errors = append(errors, "Build version < 0")
}
if vi.BuildTimestamp <= 0 {
ok = false
errors = append(errors, "Build timestamp is invalid")
}
if vi.BuildHost == "" {
ok = false
errors = append(errors, "Build Host is empty")
}
return
}
func (vi *VersionInformation) VersionString() string {
return fmt.Sprintf("%v.%v.%v.%v", vi.Major, vi.Minor, vi.Hotfix, vi.Build)
}
func (vi *VersionInformation) VersionTitle() string {
var b strings.Builder
b.WriteString(fmt.Sprintf("%v.%v.%v", vi.Major, vi.Minor, vi.Hotfix))
// add additional parts
var parts []string
if vi.Build > 0 {
parts = append(parts, fmt.Sprintf("build: %v", vi.Build))
}
if vi.Revision != "" {
parts = append(parts, fmt.Sprintf("rev: %v", vi.Revision))
}
// append parts
if len(parts) > 0 {
b.WriteString(" (")
b.WriteString(strings.Join(parts, ", "))
b.WriteString(")")
}
return b.String()
}
func (vi *VersionInformation) SemVerString() string {
parts := []string{fmt.Sprintf("%v.%v.%v", vi.Major, vi.Minor, vi.Hotfix)}
// add additional parts
if vi.Build > 0 {
parts = append(parts, fmt.Sprintf("build+%v", vi.Build))
}
if vi.Revision != "" {
parts = append(parts, fmt.Sprintf("rev.%v", vi.Revision))
}
return strings.Join(parts, "-")
}
func (vi *VersionInformation) SetSemVersion(semVerString string) {
ver := semver.MustParse(semVerString)
vi.Major = int(ver.Major)
vi.Minor = int(ver.Minor)
vi.Hotfix = int(ver.Patch)
}
func (vi *VersionInformation) LimitRevision(length int) {
if len(vi.Revision) <= length {
return
}
vi.Revision = vi.Revision[:length]
}
func (vi *VersionInformation) CopyMissingFrom(copy *VersionInformation) {
if copy == nil {
return
}
if vi.Author == "" && copy.Author != "" {
vi.Author = copy.Author
}
if vi.Build < 0 && copy.Build >= 0 {
vi.Build = copy.Build
}
if vi.BuildHost == "" && copy.BuildHost != "" {
vi.BuildHost = copy.BuildHost
}
if vi.BuildTimestamp <= 0 && copy.BuildTimestamp > 0 {
vi.BuildTimestamp = copy.BuildTimestamp
}
if vi.Description == "" && copy.Description != "" {
vi.Description = copy.Description
}
if vi.License == "" && copy.License != "" {
vi.License = copy.License
}
if vi.Email == "" && copy.Email != "" {
vi.Email = copy.Email
}
if vi.Hotfix < 0 && copy.Hotfix >= 0 {
vi.Hotfix = copy.Hotfix
}
if vi.Major < 0 && copy.Major >= 0 {
vi.Major = copy.Major
}
if vi.Minor < 0 && copy.Minor >= 0 {
vi.Minor = copy.Minor
}
if vi.Name == "" && copy.Name != "" {
vi.Name = copy.Name
}
if vi.Revision == "" && copy.Revision != "" {
vi.Revision = copy.Revision
}
if vi.Website == "" && copy.Website != "" {
vi.Website = copy.Website
}
}