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[extractor/golang] Generate valid golang purls #501

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[extractor/golang] Generate valid golang purls #501

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8 changes: 5 additions & 3 deletions extractor/filesystem/language/golang/gobinary/gobinary.go
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Original file line number Diff line number Diff line change
Expand Up @@ -221,10 +221,12 @@ func parseDependency(d *debug.Module) (string, string) {

// ToPURL converts an inventory created by this extractor into a PURL.
func (e Extractor) ToPURL(i *extractor.Inventory) *purl.PackageURL {
nameParts := strings.Split(i.Name, "/")
return &purl.PackageURL{
Type: purl.TypeGolang,
Name: i.Name,
Version: i.Version,
Type: purl.TypeGolang,
Name: nameParts[len(nameParts)-1],
Namespace: strings.Join(nameParts[:len(nameParts)-1], "/"),
Version: i.Version,
}
}

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9 changes: 5 additions & 4 deletions extractor/filesystem/language/golang/gobinary/gobinary_test.go
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Expand Up @@ -283,14 +283,15 @@ func TestExtract(t *testing.T) {
func TestToPURL(t *testing.T) {
e := gobinary.Extractor{}
i := &extractor.Inventory{
Name: "name",
Name: "github.com/google/osv-scalibr",
Version: "1.2.3",
Locations: []string{"location"},
}
want := &purl.PackageURL{
Type: purl.TypeGolang,
Name: "name",
Version: "1.2.3",
Type: purl.TypeGolang,
Name: "osv-scalibr",
Namespace: "github.com/google",
Version: "1.2.3",
}
got := e.ToPURL(i)
if diff := cmp.Diff(want, got); diff != "" {
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8 changes: 5 additions & 3 deletions extractor/filesystem/language/golang/gomod/gomod.go
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Expand Up @@ -140,10 +140,12 @@ func (e Extractor) Extract(ctx context.Context, input *filesystem.ScanInput) ([]

// ToPURL converts an inventory created by this extractor into a PURL.
func (e Extractor) ToPURL(i *extractor.Inventory) *purl.PackageURL {
nameParts := strings.Split(i.Name, "/")
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Since we're doing this in two places can you move the ToPURL logic into a separate library inside language/golang, similar to https://github.com/google/osv-scalibr/blob/main/extractor/filesystem/language/python/internal/pypipurl/pythonpurl.go?

return &purl.PackageURL{
Type: purl.TypeGolang,
Name: i.Name,
Version: i.Version,
Type: purl.TypeGolang,
Name: nameParts[len(nameParts)-1],
Namespace: strings.Join(nameParts[:len(nameParts)-1], "/"),
Version: i.Version,
}
}

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19 changes: 19 additions & 0 deletions extractor/filesystem/language/golang/gomod/gomod_test.go
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Expand Up @@ -23,6 +23,7 @@ import (
"github.com/google/osv-scalibr/extractor"
"github.com/google/osv-scalibr/extractor/filesystem/language/golang/gomod"
"github.com/google/osv-scalibr/extractor/filesystem/simplefileapi"
"github.com/google/osv-scalibr/purl"
"github.com/google/osv-scalibr/testing/extracttest"
)

Expand Down Expand Up @@ -278,3 +279,21 @@ func TestExtractor_Extract(t *testing.T) {
})
}
}

func TestExtractor_ToPURL(t *testing.T) {
e := gomod.Extractor{}
i := &extractor.Inventory{
Name: "github.com/google/osv-scalibr",
Version: "1.2.3",
}
want := &purl.PackageURL{
Type: purl.TypeGolang,
Name: "osv-scalibr",
Namespace: "github.com/google",
Version: "1.2.3",
}
got := e.ToPURL(i)
if diff := cmp.Diff(want, got); diff != "" {
t.Errorf("ToPURL(%v) (-want +got):\n%s", i, diff)
}
}
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