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port golang cataloger to new generic cataloger pattern (#1289)

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Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>
This commit is contained in:
Alex Goodman
2022-10-25 16:42:50 +00:00
committed by GitHub
parent 52cb7269bf
commit 6826d7603b
12 changed files with 294 additions and 239 deletions
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syft/pkg/cataloger/golang/parse_go_mod.go
+22 -15
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@@ -9,38 +9,44 @@ import (
"github.com/anchore/syft/syft/artifact"
"github.com/anchore/syft/syft/pkg"
"github.com/anchore/syft/syft/pkg/cataloger/generic"
"github.com/anchore/syft/syft/source"
)
// parseGoMod takes a go.mod and lists all packages discovered.
func parseGoMod(path string, reader io.Reader) ([]*pkg.Package, []artifact.Relationship, error) {
packages := make(map[string]*pkg.Package)
// parseGoModFile takes a go.mod and lists all packages discovered.
func parseGoModFile(_ source.FileResolver, _ *generic.Environment, reader source.LocationReadCloser) ([]pkg.Package, []artifact.Relationship, error) {
packages := make(map[string]pkg.Package)
contents, err := io.ReadAll(reader)
if err != nil {
return nil, nil, fmt.Errorf("failed to read go module: %w", err)
}
file, err := modfile.Parse(path, contents, nil)
file, err := modfile.Parse(reader.RealPath, contents, nil)
if err != nil {
return nil, nil, fmt.Errorf("failed to parse go module: %w", err)
}
for _, m := range file.Require {
packages[m.Mod.Path] = &pkg.Package{
Name: m.Mod.Path,
Version: m.Mod.Version,
Language: pkg.Go,
Type: pkg.GoModulePkg,
packages[m.Mod.Path] = pkg.Package{
Name: m.Mod.Path,
Version: m.Mod.Version,
Locations: source.NewLocationSet(reader.Location),
PURL: packageURL(m.Mod.Path, m.Mod.Version),
Language: pkg.Go,
Type: pkg.GoModulePkg,
}
}
// remove any old packages and replace with new ones...
for _, m := range file.Replace {
packages[m.New.Path] = &pkg.Package{
Name: m.New.Path,
Version: m.New.Version,
Language: pkg.Go,
Type: pkg.GoModulePkg,
packages[m.New.Path] = pkg.Package{
Name: m.New.Path,
Version: m.New.Version,
Locations: source.NewLocationSet(reader.Location),
PURL: packageURL(m.New.Path, m.New.Version),
Language: pkg.Go,
Type: pkg.GoModulePkg,
}
}
@@ -49,9 +55,10 @@ func parseGoMod(path string, reader io.Reader) ([]*pkg.Package, []artifact.Relat
delete(packages, m.Mod.Path)
}
pkgsSlice := make([]*pkg.Package, len(packages))
pkgsSlice := make([]pkg.Package, len(packages))
idx := 0
for _, p := range packages {
p.SetID()
pkgsSlice[idx] = p
idx++
}