github.com/GoogleContainerTools/kaniko@v1.23.0/pkg/commands/cmd.go (about) 1 /* 2 Copyright 2018 Google LLC 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package commands 18 19 import ( 20 "strings" 21 22 "github.com/GoogleContainerTools/kaniko/pkg/dockerfile" 23 v1 "github.com/google/go-containerregistry/pkg/v1" 24 25 "github.com/moby/buildkit/frontend/dockerfile/instructions" 26 ) 27 28 type CmdCommand struct { 29 BaseCommand 30 cmd *instructions.CmdCommand 31 } 32 33 // ExecuteCommand executes the CMD command 34 // Argument handling is the same as RUN. 35 func (c *CmdCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error { 36 var newCommand []string 37 if c.cmd.PrependShell { 38 // This is the default shell on Linux 39 var shell []string 40 if len(config.Shell) > 0 { 41 shell = config.Shell 42 } else { 43 shell = append(shell, "/bin/sh", "-c") 44 } 45 46 newCommand = append(shell, strings.Join(c.cmd.CmdLine, " ")) 47 } else { 48 newCommand = c.cmd.CmdLine 49 } 50 51 config.Cmd = newCommand 52 // ArgsEscaped is only used in windows environments 53 config.ArgsEscaped = false 54 return nil 55 } 56 57 // String returns some information about the command for the image config history 58 func (c *CmdCommand) String() string { 59 return c.cmd.String() 60 }