syft/syft/cataloger/packages/golang/binary_cataloger.go

/*
Package golang provides a concrete Cataloger implementation for go.mod files.
*/
package golang

import (
	"fmt"
	"github.com/anchore/syft/syft/file"

	"github.com/anchore/syft/internal"

	"github.com/anchore/syft/internal/log"
	"github.com/anchore/syft/syft/artifact"
	"github.com/anchore/syft/syft/pkg"
)

type Cataloger struct{}

// NewGoModuleBinaryCataloger returns a new Golang cataloger object.
func NewGoModuleBinaryCataloger() *Cataloger {
	return &Cataloger{}
}

// Catalog is given an object to resolve file references and content, this function returns any discovered Packages after analyzing rpm db installation.
func (c *Cataloger) Catalog(resolver file.Resolver) ([]pkg.Package, []artifact.Relationship, error) {
	var pkgs []pkg.Package

	fileMatches, err := resolver.FilesByMIMEType(internal.ExecutableMIMETypeSet.List()...)
	if err != nil {
		return pkgs, nil, fmt.Errorf("failed to find bin by mime types: %w", err)
	}

	for _, location := range fileMatches {
		r, err := resolver.FileContentsByLocation(location)
		if err != nil {
			return pkgs, nil, fmt.Errorf("failed to resolve file contents by location=%q: %w", location.RealPath, err)
		}

		goPkgs, err := parseGoBin(location, r, openExe)
		if err != nil {
			log.Warnf("could not parse possible go binary at %q: %+v", location.RealPath, err)
		}

		internal.CloseAndLogError(r, location.RealPath)
		pkgs = append(pkgs, goPkgs...)
	}

	return pkgs, nil, nil
}