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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package version records versioning information about this module.
package version
import (
"fmt"
"strings"
)
// These constants determine the current version of this module.
//
//
// For our release process, we enforce the following rules:
// * Tagged releases use a tag that is identical to String.
// * Tagged releases never reference a commit where the String
// contains "devel".
// * The set of all commits in this repository where String
// does not contain "devel" must have a unique String.
//
//
// Steps for tagging a new release:
// 1. Create a new CL.
//
// 2. Update Minor, Patch, and/or PreRelease as necessary.
// PreRelease must not contain the string "devel".
//
// 3. Since the last released minor version, have there been any changes to
// generator that relies on new functionality in the runtime?
// If yes, then increment RequiredGenerated.
//
// 4. Since the last released minor version, have there been any changes to
// the runtime that removes support for old .pb.go source code?
// If yes, then increment SupportMinimum.
//
// 5. Send out the CL for review and submit it.
// Note that the next CL in step 8 must be submitted after this CL
// without any other CLs in-between.
//
// 6. Tag a new version, where the tag is is the current String.
//
// 7. Write release notes for all notable changes
// between this release and the last release.
//
// 8. Create a new CL.
//
// 9. Update PreRelease to include the string "devel".
// For example: "" -> "devel" or "rc.1" -> "rc.1.devel"
//
// 10. Send out the CL for review and submit it.
const (
Major = 1
Minor = 27
Patch = 0
PreRelease = "devel"
)
// String formats the version string for this module in semver format.
//
// Examples:
// v1.20.1
// v1.21.0-rc.1
func String() string {
v := fmt.Sprintf("v%d.%d.%d", Major, Minor, Patch)
if PreRelease != "" {
v += "-" + PreRelease
// TODO: Add metadata about the commit or build hash.
// See https://golang.org/issue/29814
// See https://golang.org/issue/33533
var metadata string
if strings.Contains(PreRelease, "devel") && metadata != "" {
v += "+" + metadata
}
}
return v
}