enable constraint

cmd/dep/gom_importer.go

@@ -251,8 +251,13 @@ func (g *gomImporter) convert(pr gps.ProjectRoot) (*dep.Manifest, *dep.Lock, err
 			feedback(version, pi.ProjectRoot, fb.DepTypeImported, g.logger)
 			lp := gps.NewLockedProject(pi, version, nil)
 			lock.P = append(lock.P, lp)
+
+			pc.Constraint, err = deduceConstraint(rev, pc.Ident, g.sm)
+			if err != nil {
+				return nil, nil, err
+			}
 		}
-		manifest.Constraints[pc.Ident.ProjectRoot] = gps.ProjectProperties{Source: pc.Ident.Source, Constraint: nil}
+		manifest.Constraints[pc.Ident.ProjectRoot] = gps.ProjectProperties{Source: pc.Ident.Source, Constraint: pc.Constraint}
 	}
 
 	return manifest, lock, nil

cmd/dep/gom_importer_test.go

@@ -92,11 +92,16 @@ func TestGomConfig_ConvertProject(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	_, ok := manifest.Constraints["github.com/sdboyer/deptest"]
+	d, ok := manifest.Constraints["github.com/sdboyer/deptest"]
 	if !ok {
 		t.Fatal("Expected the manifest to have a dependency for 'github.com/sdboyer/deptest' but got none")
 	}
 
+	v := d.Constraint.String()
+	if v != "ff2948a2ac8f538c4ecd55962e919d1e13e74baf" {
+		t.Fatalf("Expected manifest constraint to be %q got %q", "ff2948a2ac8f538c4ecd55962e919d1e13e74baf", v)
+	}
+
 	p := lock.P[0]
 	if p.Ident().ProjectRoot != "github.com/sdboyer/deptest" {
 		t.Fatalf("Expected the lock to have a project for 'github.com/sdboyer/deptest' but got '%s'", p.Ident().ProjectRoot)
@@ -129,7 +134,7 @@ func TestGomConfig_ConvertProject_EmptyComment(t *testing.T) {
 		{
 			name: "github.com/sdboyer/deptest",
 			options: map[string]interface{}{
-				"commit": "ff2948a2ac8f538c4ecd55962e919d1e13e74baf",
+				"branch": "0.8.0",
 			},
 		},
 	}
@@ -139,24 +144,23 @@ func TestGomConfig_ConvertProject_EmptyComment(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	_, ok := manifest.Constraints["github.com/sdboyer/deptest"]
+	d, ok := manifest.Constraints["github.com/sdboyer/deptest"]
 	if !ok {
 		t.Fatal("Expected the manifest to have a dependency for 'github.com/sdboyer/deptest' but got none")
 	}
 
+	v := d.Constraint.String()
+	if v != "^0.8.0" {
+		t.Fatalf("Expected manifest constraint to be %q got %q", "^0.8.0", v)
+	}
+
 	p := lock.P[0]
 	if p.Ident().ProjectRoot != "github.com/sdboyer/deptest" {
 		t.Fatalf("Expected the lock to have a project for 'github.com/sdboyer/deptest' but got '%s'", p.Ident().ProjectRoot)
 	}
 
-	lv := p.Version()
-	lpv, ok := lv.(gps.PairedVersion)
-	if !ok {
-		t.Fatalf("Expected locked version to be PairedVersion but got %T", lv)
-	}
-
-	rev := lpv.Underlying()
-	if rev != "ff2948a2ac8f538c4ecd55962e919d1e13e74baf" {
+	rev := p.Version().String()
+	if rev != "0.8.0" {
 		t.Fatalf("Expected locked revision to be 'ff2948a2ac8f538c4ecd55962e919d1e13e74baf', got %s", rev)
 	}
 }