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// Copyright © 2013 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 commands
import (
"fmt"
"os"
"path/filepath"
"strings"
"time"
"bitbucket.org/kardianos/osext"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var timeLayout string // the layout for time.Time
var (
commitHash string
buildDate string
)
var version = &cobra.Command{
Use: "version",
Short: "Print the version number of Hugo",
Long: `All software has versions. This is Hugo's`,
Run: func(cmd *cobra.Command, args []string) {
InitializeConfig()
if buildDate == "" {
setBuildDate() // set the build date from executable's mdate
} else {
formatBuildDate() // format the compile time
}
if commitHash == "" {
fmt.Printf("Hugo Static Site Generator v0.13-DEV buildDate: %s\n", buildDate)
} else {
fmt.Printf("Hugo Static Site Generator v0.13-DEV-%s buildDate: %s\n", strings.ToUpper(commitHash), buildDate)
}
},
}
// 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
// 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, "hugo"))
if err != nil {
fmt.Println(err)
return
}
t := fi.ModTime()
buildDate = t.Format(getDateFormat())
}
// formatBuildDate formats the buildDate according to the value in
// .Params.DateFormat, if it's set.
func formatBuildDate() {
t, _ := time.Parse("2006-01-02T15:04:05", buildDate)
buildDate = t.Format(getDateFormat())
}
// getDateFormat gets the dateFormat value from Params. The dateFormat should
// be a valid time layout. If it isn't set, time.RFC3339 is used.
func getDateFormat() string {
params := viper.Get("params")
if params == nil {
return time.RFC3339
}
parms := params.(map[string]interface{})
layout := parms["DateFormat"]
if layout == nil || layout == "" {
return time.RFC3339
}
return layout.(string)
}
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