mirror of
https://github.com/docker/compose.git
synced 2025-11-04 05:34:09 +01:00
113 lines
3.3 KiB
Go
113 lines
3.3 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cmd
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import (
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"fmt"
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"os"
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"strings"
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"github.com/spf13/cobra"
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"github.com/docker/compose-cli/cli/formatter"
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"github.com/docker/compose-cli/cli/mobycli"
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"github.com/docker/compose-cli/internal"
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)
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const formatOpt = "format"
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// VersionCommand command to display version
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func VersionCommand() *cobra.Command {
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cmd := &cobra.Command{
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Use: "version",
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Short: "Show the Docker version information",
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Args: cobra.MaximumNArgs(0),
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Run: func(cmd *cobra.Command, _ []string) {
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runVersion(cmd)
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},
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}
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// define flags for backward compatibility with com.docker.cli
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flags := cmd.Flags()
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flags.StringP(formatOpt, "f", "", "Format the output. Values: [pretty | json]. (Default: pretty)")
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flags.String("kubeconfig", "", "Kubernetes config file")
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return cmd
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}
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func runVersion(cmd *cobra.Command) {
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var versionString string
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format := strings.ToLower(strings.ReplaceAll(cmd.Flag(formatOpt).Value.String(), " ", ""))
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displayedVersion := strings.TrimPrefix(internal.Version, "v")
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// Replace is preferred in this case to keep the order.
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switch format {
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case formatter.PRETTY, "":
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versionString = strings.Replace(getOutFromMoby(cmd, fixedPrettyArgs(os.Args[1:])...),
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"\n Version:", "\n Cloud integration: "+displayedVersion+"\n Version:", 1)
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case formatter.JSON, formatter.TemplateLegacyJSON: // Try to catch full JSON formats
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versionString = strings.Replace(getOutFromMoby(cmd, fixedJSONArgs(os.Args[1:])...),
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`"Version":`, fmt.Sprintf(`"CloudIntegration":%q,"Version":`, displayedVersion), 1)
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default:
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versionString = getOutFromMoby(cmd)
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}
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fmt.Print(versionString)
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}
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func getOutFromMoby(cmd *cobra.Command, args ...string) string {
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versionResult, _ := mobycli.ExecSilent(cmd.Context(), args...)
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// we don't want to fail on error, there is an error if the engine is not available but it displays client version info
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// Still, technically the [] byte versionResult could be nil, just let the original command display what it has to display
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if versionResult == nil {
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mobycli.Exec(cmd.Root())
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return ""
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}
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return string(versionResult)
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}
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func fixedPrettyArgs(oArgs []string) []string {
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args := make([]string, 0)
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for i := 0; i < len(oArgs); i++ {
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if isFormatOpt(oArgs[i]) &&
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len(oArgs) > i &&
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(strings.ToLower(oArgs[i+1]) == formatter.PRETTY || oArgs[i+1] == "") {
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i++
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continue
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}
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args = append(args, oArgs[i])
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}
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return args
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}
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func fixedJSONArgs(oArgs []string) []string {
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args := make([]string, 0)
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for i := 0; i < len(oArgs); i++ {
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if isFormatOpt(oArgs[i]) &&
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len(oArgs) > i &&
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strings.ToLower(oArgs[i+1]) == formatter.JSON {
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args = append(args, oArgs[i], "{{json .}}")
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i++
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continue
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}
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args = append(args, oArgs[i])
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}
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return args
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}
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func isFormatOpt(o string) bool {
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return o == "--format" || o == "-f"
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}
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