github.com/Mirantis/virtlet@v1.5.2-0.20191204181327-1659b8a48e9b/pkg/fs/iso.go (about)

     1  /*
     2  Copyright 2019 Mirantis
     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 fs
    18  
    19  import (
    20  	"fmt"
    21  	"os/exec"
    22  )
    23  
    24  // GenIsoImage generates an ISO 9660 filesystem image containing
    25  // files from srcDir. It uses specified volumeID as the volume id.
    26  func GenIsoImage(isoPath string, volumeID string, srcDir string) error {
    27  	out, err := exec.Command("genisoimage", "-o", isoPath, "-V", volumeID, "-r", "-J", srcDir).CombinedOutput()
    28  	if err != nil {
    29  		outStr := ""
    30  		if len(out) != 0 {
    31  			outStr = ". Output:\n" + string(out)
    32  		}
    33  		return fmt.Errorf("error generating iso: %v%s", err, outStr)
    34  	}
    35  
    36  	return nil
    37  }