/*
Copyright 2019 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,

type ByVersion []string

func (vs ByVersion) Len() int      { return len(vs) }
func (vs ByVersion) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
func (vs ByVersion) Less(i, j int) bool {
	cmp := Compare(vs[i], vs[j])
	if cmp != 0 {
		return cmp < 0
	}
	return vs[i] < vs[j]
}

// Sort sorts a list of semantic version strings using [ByVersion].
func Sort(list []string) {
	sort.Sort(ByVersion(list))
}

// limitations under the License.

package mesh

import (
	"flag"

	"github.com/spf13/cobra"

	"istio.io/istio/istioctl/pkg/cli"
	binversion "istio.io/istio/operator/version"
	"istio.io/istio/pkg/url"
	"istio.io/istio/pkg/version"
)

var (
	baseVersion    = binversion.OperatorVersionString
	setFlagHelpStr = `Override an IstioOperator value, e.g. to choose a profile

// If v does not start with "go", stripGo returns the empty string (a known invalid version).
func stripGo(v string) string {
	v, _, _ = strings.Cut(v, "-") // strip -bigcorp suffix.
	if len(v) < 2 || v[:2] != "go" {
		return ""
	}
	return v[2:]
}

// Lang returns the Go language version for version x.
// If x is not a valid version, Lang returns the empty string.
// For example:
//

// Internal helper: returns normalized build version (with "v" prefix if needed)
// If input doesn't match known version pattern, returns empty string.
func normalizedBuildVersion(version string) string {
	if kubeReleaseRegex.MatchString(version) {
		if strings.HasPrefix(version, "v") {
			return version
		}
		return "v" + version
	}
	return ""
}

// Internal helper: split version parts,

Joe Betz <******@****.***> 1520669023 -0800

	buildArch        = "unknown"
)

// BuildInfo describes version information about the binary build.
type BuildInfo struct {
	Version       string `json:"version"`
	GitRevision   string `json:"revision"`
	GolangVersion string `json:"golang_version"`
	BuildStatus   string `json:"status"`
	GitTag        string `json:"tag"`
}

// ServerInfo contains the version for a single control plane component
type ServerInfo struct {

cpanato <******@****.***> 1717690383 +0200

	// goStrictVersion is the Go version at which the Go versions
	// became "strict" in the sense that, restricted to modules at this version
	// or later, every module must have a go version line ≥ all its dependencies.
	// It is also the version after which "too new" a version is considered a fatal error.
	GoStrictVersion = "1.21"

	// ExplicitModulesTxtImportVersion is the Go version at which vendored packages need to be present

package types2

import (
	"fmt"
	"go/version"
	"internal/goversion"
)

// A goVersion is a Go language version string of the form "go1.%d"
// where d is the minor version number. goVersion strings don't
// contain release numbers ("go1.20.1" is not a valid goVersion).
type goVersion string

// asGoVersion returns v as a goVersion (e.g., "go1.20.1" becomes "go1.20").