plugins/vendor/golang.org/x/tools/internal/versions/gover.go

173 lines
4.2 KiB
Go
Raw Normal View History

build(deps): bump the golang group with 5 updates Bumps the golang group with 5 updates: | Package | From | To | | --- | --- | --- | | [github.com/Microsoft/hcsshim](https://github.com/Microsoft/hcsshim) | `0.11.4` | `0.12.0` | | [github.com/alexflint/go-filemutex](https://github.com/alexflint/go-filemutex) | `1.2.0` | `1.3.0` | | [github.com/onsi/ginkgo/v2](https://github.com/onsi/ginkgo) | `2.13.2` | `2.16.0` | | [github.com/onsi/gomega](https://github.com/onsi/gomega) | `1.30.0` | `1.31.1` | | [golang.org/x/sys](https://github.com/golang/sys) | `0.15.0` | `0.17.0` | Updates `github.com/Microsoft/hcsshim` from 0.11.4 to 0.12.0 - [Release notes](https://github.com/Microsoft/hcsshim/releases) - [Commits](https://github.com/Microsoft/hcsshim/compare/v0.11.4...v0.12.0) Updates `github.com/alexflint/go-filemutex` from 1.2.0 to 1.3.0 - [Release notes](https://github.com/alexflint/go-filemutex/releases) - [Commits](https://github.com/alexflint/go-filemutex/compare/v1.2.0...v1.3.0) Updates `github.com/onsi/ginkgo/v2` from 2.13.2 to 2.16.0 - [Release notes](https://github.com/onsi/ginkgo/releases) - [Changelog](https://github.com/onsi/ginkgo/blob/master/CHANGELOG.md) - [Commits](https://github.com/onsi/ginkgo/compare/v2.13.2...v2.16.0) Updates `github.com/onsi/gomega` from 1.30.0 to 1.31.1 - [Release notes](https://github.com/onsi/gomega/releases) - [Changelog](https://github.com/onsi/gomega/blob/master/CHANGELOG.md) - [Commits](https://github.com/onsi/gomega/compare/v1.30.0...v1.31.1) Updates `golang.org/x/sys` from 0.15.0 to 0.17.0 - [Commits](https://github.com/golang/sys/compare/v0.15.0...v0.17.0) --- updated-dependencies: - dependency-name: github.com/Microsoft/hcsshim dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang - dependency-name: github.com/alexflint/go-filemutex dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang - dependency-name: github.com/onsi/ginkgo/v2 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang - dependency-name: github.com/onsi/gomega dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang - dependency-name: golang.org/x/sys dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang ... Signed-off-by: dependabot[bot] <support@github.com>
2024-03-11 15:54:46 +00:00
// Copyright 2023 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.
// This is a fork of internal/gover for use by x/tools until
// go1.21 and earlier are no longer supported by x/tools.
package versions
import "strings"
// A gover is a parsed Go gover: major[.Minor[.Patch]][kind[pre]]
// The numbers are the original decimal strings to avoid integer overflows
// and since there is very little actual math. (Probably overflow doesn't matter in practice,
// but at the time this code was written, there was an existing test that used
// go1.99999999999, which does not fit in an int on 32-bit platforms.
// The "big decimal" representation avoids the problem entirely.)
type gover struct {
major string // decimal
minor string // decimal or ""
patch string // decimal or ""
kind string // "", "alpha", "beta", "rc"
pre string // decimal or ""
}
// compare returns -1, 0, or +1 depending on whether
// x < y, x == y, or x > y, interpreted as toolchain versions.
// The versions x and y must not begin with a "go" prefix: just "1.21" not "go1.21".
// Malformed versions compare less than well-formed versions and equal to each other.
// The language version "1.21" compares less than the release candidate and eventual releases "1.21rc1" and "1.21.0".
func compare(x, y string) int {
vx := parse(x)
vy := parse(y)
if c := cmpInt(vx.major, vy.major); c != 0 {
return c
}
if c := cmpInt(vx.minor, vy.minor); c != 0 {
return c
}
if c := cmpInt(vx.patch, vy.patch); c != 0 {
return c
}
if c := strings.Compare(vx.kind, vy.kind); c != 0 { // "" < alpha < beta < rc
return c
}
if c := cmpInt(vx.pre, vy.pre); c != 0 {
return c
}
return 0
}
// lang returns the Go language version. For example, lang("1.2.3") == "1.2".
func lang(x string) string {
v := parse(x)
if v.minor == "" || v.major == "1" && v.minor == "0" {
return v.major
}
return v.major + "." + v.minor
}
// isValid reports whether the version x is valid.
func isValid(x string) bool {
return parse(x) != gover{}
}
// parse parses the Go version string x into a version.
// It returns the zero version if x is malformed.
func parse(x string) gover {
var v gover
// Parse major version.
var ok bool
v.major, x, ok = cutInt(x)
if !ok {
return gover{}
}
if x == "" {
// Interpret "1" as "1.0.0".
v.minor = "0"
v.patch = "0"
return v
}
// Parse . before minor version.
if x[0] != '.' {
return gover{}
}
// Parse minor version.
v.minor, x, ok = cutInt(x[1:])
if !ok {
return gover{}
}
if x == "" {
// Patch missing is same as "0" for older versions.
// Starting in Go 1.21, patch missing is different from explicit .0.
if cmpInt(v.minor, "21") < 0 {
v.patch = "0"
}
return v
}
// Parse patch if present.
if x[0] == '.' {
v.patch, x, ok = cutInt(x[1:])
if !ok || x != "" {
// Note that we are disallowing prereleases (alpha, beta, rc) for patch releases here (x != "").
// Allowing them would be a bit confusing because we already have:
// 1.21 < 1.21rc1
// But a prerelease of a patch would have the opposite effect:
// 1.21.3rc1 < 1.21.3
// We've never needed them before, so let's not start now.
return gover{}
}
return v
}
// Parse prerelease.
i := 0
for i < len(x) && (x[i] < '0' || '9' < x[i]) {
if x[i] < 'a' || 'z' < x[i] {
return gover{}
}
i++
}
if i == 0 {
return gover{}
}
v.kind, x = x[:i], x[i:]
if x == "" {
return v
}
v.pre, x, ok = cutInt(x)
if !ok || x != "" {
return gover{}
}
return v
}
// cutInt scans the leading decimal number at the start of x to an integer
// and returns that value and the rest of the string.
func cutInt(x string) (n, rest string, ok bool) {
i := 0
for i < len(x) && '0' <= x[i] && x[i] <= '9' {
i++
}
if i == 0 || x[0] == '0' && i != 1 { // no digits or unnecessary leading zero
return "", "", false
}
return x[:i], x[i:], true
}
// cmpInt returns cmp.Compare(x, y) interpreting x and y as decimal numbers.
// (Copied from golang.org/x/mod/semver's compareInt.)
func cmpInt(x, y string) int {
if x == y {
return 0
}
if len(x) < len(y) {
return -1
}
if len(x) > len(y) {
return +1
}
if x < y {
return -1
} else {
return +1
}
}