github.com/containerd/nerdctl/v2@v2.0.0-beta.5.0.20240520001846-b5758f54fa28/pkg/cmd/apparmor/list_linux.go (about)

     1  /*
     2     Copyright The containerd Authors.
     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 apparmor
    18  
    19  import (
    20  	"bytes"
    21  	"errors"
    22  	"fmt"
    23  	"text/tabwriter"
    24  	"text/template"
    25  
    26  	"github.com/containerd/nerdctl/v2/pkg/api/types"
    27  	"github.com/containerd/nerdctl/v2/pkg/apparmorutil"
    28  	"github.com/containerd/nerdctl/v2/pkg/formatter"
    29  )
    30  
    31  func List(options types.ApparmorListOptions) error {
    32  	quiet := options.Quiet
    33  	w := options.Stdout
    34  	var tmpl *template.Template
    35  	format := options.Format
    36  	switch format {
    37  	case "", "table", "wide":
    38  		w = tabwriter.NewWriter(w, 4, 8, 4, ' ', 0)
    39  		if !quiet {
    40  			fmt.Fprintln(w, "NAME\tMODE")
    41  		}
    42  	case "raw":
    43  		return errors.New("unsupported format: \"raw\"")
    44  	default:
    45  		if quiet {
    46  			return errors.New("format and quiet must not be specified together")
    47  		}
    48  		var err error
    49  		tmpl, err = formatter.ParseTemplate(format)
    50  		if err != nil {
    51  			return err
    52  		}
    53  	}
    54  
    55  	profiles, err := apparmorutil.Profiles()
    56  	if err != nil {
    57  		return err
    58  	}
    59  
    60  	for _, f := range profiles {
    61  		if tmpl != nil {
    62  			var b bytes.Buffer
    63  			if err := tmpl.Execute(&b, f); err != nil {
    64  				return err
    65  			}
    66  			if _, err = fmt.Fprintln(w, b.String()); err != nil {
    67  				return err
    68  			}
    69  		} else if quiet {
    70  			fmt.Fprintln(w, f.Name)
    71  		} else {
    72  			fmt.Fprintf(w, "%s\t%s\n", f.Name, f.Mode)
    73  		}
    74  	}
    75  	if f, ok := w.(formatter.Flusher); ok {
    76  		return f.Flush()
    77  	}
    78  	return nil
    79  }