add analysis coordination (with dummy analyzer)

imgbom/analyzer/dummy/analyzer.go

@@ -0,0 +1,30 @@
+package dummy
+
+import (
+	"github.com/anchore/imgbom/imgbom/pkg"
+	"github.com/anchore/stereoscope/pkg/file"
+	"github.com/anchore/stereoscope/pkg/tree"
+)
+
+// TODO: delete me
+
+type Analyzer struct{}
+
+func NewAnalyzer() *Analyzer {
+	return &Analyzer{}
+}
+
+func (a *Analyzer) SelectFiles(trees []*tree.FileTree) []file.Reference {
+	return []file.Reference{*trees[0].File("/etc/centos-release")}
+}
+
+func (a *Analyzer) Analyze(contents map[file.Reference]string) ([]pkg.Package, error) {
+	return []pkg.Package{
+		{
+			Name:     "dummy",
+			Version:  "1.0.0",
+			Type:     pkg.DebPkg,
+			Metadata: pkg.DummyPackage{Extra: "some extra metadata"},
+		},
+	}, nil
+}