github.com/devseccon/trivy@v0.47.1-0.20231123133102-bd902a0bd996/pkg/fanal/analyzer/os/alpine/alpine.go (about)

     1  package alpine
     2  
     3  import (
     4  	"bufio"
     5  	"context"
     6  	"os"
     7  
     8  	"golang.org/x/exp/slices"
     9  	"golang.org/x/xerrors"
    10  
    11  	"github.com/devseccon/trivy/pkg/fanal/analyzer"
    12  	fos "github.com/devseccon/trivy/pkg/fanal/analyzer/os"
    13  	"github.com/devseccon/trivy/pkg/fanal/types"
    14  )
    15  
    16  func init() {
    17  	analyzer.RegisterAnalyzer(&alpineOSAnalyzer{})
    18  }
    19  
    20  const version = 1
    21  
    22  var requiredFiles = []string{"etc/alpine-release"}
    23  
    24  type alpineOSAnalyzer struct{}
    25  
    26  func (a alpineOSAnalyzer) Analyze(_ context.Context, input analyzer.AnalysisInput) (*analyzer.AnalysisResult, error) {
    27  	scanner := bufio.NewScanner(input.Content)
    28  	for scanner.Scan() {
    29  		line := scanner.Text()
    30  		return &analyzer.AnalysisResult{
    31  			OS: types.OS{
    32  				Family: types.Alpine,
    33  				Name:   line,
    34  			},
    35  		}, nil
    36  	}
    37  	return nil, xerrors.Errorf("alpine: %w", fos.AnalyzeOSError)
    38  }
    39  
    40  func (a alpineOSAnalyzer) Required(filePath string, _ os.FileInfo) bool {
    41  	return slices.Contains(requiredFiles, filePath)
    42  }
    43  
    44  func (a alpineOSAnalyzer) Type() analyzer.Type {
    45  	return analyzer.TypeAlpine
    46  }
    47  
    48  func (a alpineOSAnalyzer) Version() int {
    49  	return version
    50  }