hugo/commands/version.go

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// Copyright 2015 The Hugo Authors. All rights reserved.
//
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// 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
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// 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 commands
import (
"fmt"
"os"
"path/filepath"
"strings"
"time"
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"github.com/kardianos/osext"
"github.com/spf13/cobra"
"github.com/spf13/hugo/helpers"
"github.com/spf13/hugo/hugolib"
)
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version number of Hugo",
Long: `All software has versions. This is Hugo's.`,
RunE: func(cmd *cobra.Command, args []string) error {
if hugolib.BuildDate == "" {
setBuildDate() // set the build date from executable's mdate
} else {
formatBuildDate() // format the compile time
}
if hugolib.CommitHash == "" {
fmt.Printf("Hugo Static Site Generator v%s BuildDate: %s\n", helpers.HugoVersion(), hugolib.BuildDate)
} else {
fmt.Printf("Hugo Static Site Generator v%s-%s BuildDate: %s\n", helpers.HugoVersion(), strings.ToUpper(hugolib.CommitHash), hugolib.BuildDate)
}
return nil
},
}
// setBuildDate checks the ModTime of the Hugo executable and returns it as a
// formatted string. This assumes that the executable name is Hugo, if it does
// not exist, an empty string will be returned. This is only called if the
// hugolib.BuildDate wasn't set during compile time.
//
// osext is used for cross-platform.
func setBuildDate() {
fname, _ := osext.Executable()
dir, err := filepath.Abs(filepath.Dir(fname))
if err != nil {
fmt.Println(err)
return
}
fi, err := os.Lstat(filepath.Join(dir, filepath.Base(fname)))
if err != nil {
fmt.Println(err)
return
}
t := fi.ModTime()
hugolib.BuildDate = t.Format(time.RFC3339)
}
// formatBuildDate formats the hugolib.BuildDate according to the value in
// .Params.DateFormat, if it's set.
func formatBuildDate() {
t, _ := time.Parse("2006-01-02T15:04:05-0700", hugolib.BuildDate)
hugolib.BuildDate = t.Format(time.RFC3339)
}