feat(ubuntu): Support Ubuntu 14.04 and 16.04 ESM (#1682)

* feat(ubuntu): Support Ubuntu ESM

* Sort PackageFixStatuses to resolve the diff in integrationTest

* go mod update gost

models/vulninfos.go

@@ -236,10 +236,13 @@ func (ps PackageFixStatuses) Store(pkg PackageFixStatus) PackageFixStatuses {
 	return ps
 }
 
-// Sort by Name
+// Sort by Name asc, FixedIn desc
 func (ps PackageFixStatuses) Sort() {
 	sort.Slice(ps, func(i, j int) bool {
-		return ps[i].Name < ps[j].Name
+		if ps[i].Name != ps[j].Name {
+			return ps[i].Name < ps[j].Name
+		}
+		return ps[j].FixedIn < ps[i].FixedIn
 	})
 }
 

models/vulninfos_test.go

@@ -991,6 +991,28 @@ func TestSortPackageStatues(t *testing.T) {
 				{Name: "b"},
 			},
 		},
+		{
+			in: PackageFixStatuses{
+				{
+					Name:    "libzstd1",
+					FixedIn: "1.3.1+dfsg-1~ubuntu0.16.04.1+esm1",
+				},
+				{
+					Name:    "libzstd1",
+					FixedIn: "1.3.1+dfsg-1~ubuntu0.16.04.1+esm2",
+				},
+			},
+			out: PackageFixStatuses{
+				{
+					Name:    "libzstd1",
+					FixedIn: "1.3.1+dfsg-1~ubuntu0.16.04.1+esm2",
+				},
+				{
+					Name:    "libzstd1",
+					FixedIn: "1.3.1+dfsg-1~ubuntu0.16.04.1+esm1",
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		tt.in.Sort()