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version.go
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version.go
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// Copyright 2016 Google, Inc.
//
// 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 cli
import (
"context"
"flag"
"fmt"
"os"
"github.com/GoogleCloudPlatform/docker-credential-gcr/config"
"github.com/google/subcommands"
)
type versionCmd struct {
cmd
}
// NewVersionSubcommand returns a subcommands.Command which prints the binary
// version to stdout.
func NewVersionSubcommand() subcommands.Command {
return &versionCmd{
cmd{
name: "version",
synopsis: "print the version of the binary to stdout",
},
}
}
func (p *versionCmd) Execute(context.Context, *flag.FlagSet, ...interface{}) subcommands.ExitStatus {
fmt.Fprintf(os.Stdout, "Google Container Registry Docker credential helper %d.%d.%d\n", config.MajorVersion, config.MinorVersion, config.PatchVersion)
return subcommands.ExitSuccess
}