84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
package main
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import (
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"fmt"
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"github.com/blang/semver"
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)
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func main() {
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v, err := semver.Parse("0.0.1-alpha.preview.222+123.github")
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if err != nil {
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fmt.Printf("Error while parsing (not valid): %q", err)
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}
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fmt.Printf("Version to string: %q\n", v)
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fmt.Printf("Major: %d\n", v.Major)
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fmt.Printf("Minor: %d\n", v.Minor)
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fmt.Printf("Patch: %d\n", v.Patch)
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// Prerelease versions
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if len(v.Pre) > 0 {
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fmt.Println("Prerelease versions:")
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for i, pre := range v.Pre {
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fmt.Printf("%d: %q\n", i, pre)
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}
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}
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// Build meta data
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if len(v.Build) > 0 {
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fmt.Println("Build meta data:")
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for i, build := range v.Build {
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fmt.Printf("%d: %q\n", i, build)
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}
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}
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// Make == Parse (Value), New for Pointer
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v001, err := semver.Make("0.0.1")
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fmt.Println("\nUse Version.Compare for comparisons (-1, 0, 1):")
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fmt.Printf("%q is greater than %q: Compare == %d\n", v001, v, v001.Compare(v))
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fmt.Printf("%q is less than %q: Compare == %d\n", v, v001, v.Compare(v001))
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fmt.Printf("%q is equal to %q: Compare == %d\n", v, v, v.Compare(v))
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fmt.Println("\nUse comparison helpers returning booleans:")
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fmt.Printf("%q is greater than %q: %t\n", v001, v, v001.GT(v))
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fmt.Printf("%q is greater than equal %q: %t\n", v001, v, v001.GTE(v))
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fmt.Printf("%q is greater than equal %q: %t\n", v, v, v.GTE(v))
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fmt.Printf("%q is less than %q: %t\n", v, v001, v.LT(v001))
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fmt.Printf("%q is less than equal %q: %t\n", v, v001, v.LTE(v001))
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fmt.Printf("%q is less than equal %q: %t\n", v, v, v.LTE(v))
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fmt.Println("\nManipulate Version in place:")
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v.Pre[0], err = semver.NewPRVersion("beta")
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if err != nil {
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fmt.Printf("Error parsing pre release version: %q", err)
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}
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fmt.Printf("Version to string: %q\n", v)
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fmt.Println("\nCompare Prerelease versions:")
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pre1, _ := semver.NewPRVersion("123")
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pre2, _ := semver.NewPRVersion("alpha")
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pre3, _ := semver.NewPRVersion("124")
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fmt.Printf("%q is less than %q: Compare == %d\n", pre1, pre2, pre1.Compare(pre2))
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fmt.Printf("%q is greater than %q: Compare == %d\n", pre3, pre1, pre3.Compare(pre1))
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fmt.Printf("%q is equal to %q: Compare == %d\n", pre1, pre1, pre1.Compare(pre1))
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fmt.Println("\nValidate versions:")
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v.Build[0] = "?"
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err = v.Validate()
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if err != nil {
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fmt.Printf("Validation failed: %s\n", err)
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}
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fmt.Println("Create valid build meta data:")
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b1, _ := semver.NewBuildVersion("build123")
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v.Build[0] = b1
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fmt.Printf("Version with new build version %q\n", v)
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_, err = semver.NewBuildVersion("build?123")
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if err != nil {
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fmt.Printf("Create build version failed: %s\n", err)
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}
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}
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