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version.go
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version.go
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// Copyright © 2016 Wei Shen <shenwei356@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package cmd
import (
"fmt"
"net/http"
"strings"
"github.com/spf13/cobra"
)
// versionCmd represents the version command
var versionCmd = &cobra.Command{
Use: "version",
Short: "print version information and check for update",
Long: `print version information and check for update
`,
Run: func(cmd *cobra.Command, args []string) {
app := "csvtk"
fmt.Printf("%s v%s\n", app, VERSION)
fmt.Println("\nChecking new version...")
resp, err := http.Get(fmt.Sprintf("https://github.com/shenwei356/%s/releases/latest", app))
if err != nil {
checkError(fmt.Errorf("Network error"))
}
items := strings.Split(resp.Request.URL.String(), "/")
version := ""
if items[len(items)-1] == "" {
version = items[len(items)-2]
} else {
version = items[len(items)-1]
}
if version == "v"+VERSION {
fmt.Printf("You are using the latest version of %s\n", app)
} else {
fmt.Printf("New version available: %s %s at %s\n", app, version, resp.Request.URL.String())
}
},
}
func init() {
RootCmd.AddCommand(versionCmd)
}