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// Copyright 2015 The Hugo Authors. All rights reserved.
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package helpers
import (
"fmt"
"strings"
"github.com/spf13/cast"
)
// HugoVersionNumber represents the current build version.
// This should be the only one
const (
// Major and minor version.
HugoVersionNumber = 0.21
// Increment this for bug releases
HugoPatchVersion = 0
)
// HugoVersionSuffix is the suffix used in the Hugo version string.
// It will be blank for release versions.
const HugoVersionSuffix = "-DEV" // use this when not doing a release
//const HugoVersionSuffix = "" // use this line when doing a release
// HugoVersion returns the current Hugo version. It will include
// a suffix, typically '-DEV', if it's development version.
func HugoVersion() string {
return hugoVersion(HugoVersionNumber, HugoPatchVersion, HugoVersionSuffix)
}
// HugoReleaseVersion is same as HugoVersion, but no suffix.
func HugoReleaseVersion() string {
return hugoVersionNoSuffix(HugoVersionNumber, HugoPatchVersion)
}
// NextHugoReleaseVersion returns the next Hugo release version.
func NextHugoReleaseVersion() string {
return hugoVersionNoSuffix(HugoVersionNumber+0.01, 0)
}
func hugoVersion(version float32, patchVersion int, suffix string) string {
if patchVersion > 0 {
return fmt.Sprintf("%.2f.%d%s", version, patchVersion, suffix)
}
return fmt.Sprintf("%.2f%s", version, suffix)
}
func hugoVersionNoSuffix(version float32, patchVersion int) string {
if patchVersion > 0 {
return fmt.Sprintf("%.2f.%d", version, patchVersion)
}
return fmt.Sprintf("%.2f", version)
}
// CompareVersion compares the given version string or number against the
// running Hugo version.
// It returns -1 if the given version is less than, 0 if equal and 1 if greater than
// the running version.
func CompareVersion(version interface{}) int {
return compareVersions(HugoVersionNumber, HugoPatchVersion, version)
}
func compareVersions(inVersion float32, inPatchVersion int, in interface{}) int {
switch d := in.(type) {
case float64:
return compareFloatVersions(inVersion, float32(d))
case float32:
return compareFloatVersions(inVersion, d)
case int:
return compareFloatVersions(inVersion, float32(d))
case int32:
return compareFloatVersions(inVersion, float32(d))
case int64:
return compareFloatVersions(inVersion, float32(d))
default:
s, err := cast.ToStringE(in)
if err != nil {
return -1
}
var (
v float32
p int
)
if strings.Count(s, ".") == 2 {
li := strings.LastIndex(s, ".")
p = cast.ToInt(s[li+1:])
s = s[:li]
}
v = float32(cast.ToFloat64(s))
if v == inVersion && p == inPatchVersion {
return 0
}
if v < inVersion || (v == inVersion && p < inPatchVersion) {
return -1
}
return 1
}
}
func compareFloatVersions(version float32, v float32) int {
if v == version {
return 0
}
if v < version {
return -1
}
return 1
}
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