hugo/helpers/hugo.go

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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Simple Public 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://opensource.org/licenses/Simple-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"
"io/ioutil"
"path/filepath"
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"github.com/spf13/hugo/hugofs"
"github.com/spf13/hugo/parser"
)
// this should be the only one
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const hugoVersionMain = 0.15
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const hugoVersionSuffix = "-DEV" // blank this 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(hugoVersionMain, hugoVersionSuffix)
}
// HugoReleaseVersion is same as HugoVersion, but no suffix.
func HugoReleaseVersion() string {
return hugoVersionNoSuffix(hugoVersionMain)
}
// NextHugoReleaseVersion returns the next Hugo release version.
func NextHugoReleaseVersion() string {
return hugoVersionNoSuffix(hugoVersionMain + 0.01)
}
func hugoVersion(version float32, suffix string) string {
return fmt.Sprintf("%.2g%s", version, suffix)
}
func hugoVersionNoSuffix(version float32) string {
return fmt.Sprintf("%.2g", version)
}
// IsThemeVsHugoVersionMismatch returns whether the current Hugo version is < theme's min_version
func IsThemeVsHugoVersionMismatch() (mismatch bool, requiredMinVersion string) {
if !ThemeSet() {
return
}
themeDir, err := getThemeDirPath("")
if err != nil {
return
}
fs := hugofs.SourceFs
path := filepath.Join(themeDir, "theme.toml")
exists, err := Exists(path, fs)
if err != nil || !exists {
return
}
f, err := fs.Open(path)
if err != nil {
return
}
defer f.Close()
b, err := ioutil.ReadAll(f)
if err != nil {
return
}
c, err := parser.HandleTOMLMetaData(b)
if err != nil {
return
}
config := c.(map[string]interface{})
if minVersion, ok := config["min_version"]; ok {
switch minVersion.(type) {
case float32:
return hugoVersionMain < minVersion.(float32), fmt.Sprint(minVersion)
case float64:
return hugoVersionMain < minVersion.(float64), fmt.Sprint(minVersion)
default:
return
}
}
return
}