Delete the committed dependencies; builds resolve by go.sum (issue 1305)

cmd/mesh-controller/no_vendor_test.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+// 1305/AC1: the tree holds no vendor directory (root and modules/route-proxy), .gitignore names vendor/, and the root
+// Dockerfile builds with -mod=mod.
+func TestTheTreeCommitsNoDependencies(t *testing.T) {
+	root := filepath.Join("..", "..")
+	for _, d := range []string{"vendor", filepath.Join("modules", "route-proxy", "vendor")} {
+		if _, err := os.Stat(filepath.Join(root, d)); err == nil {
+			t.Errorf("%s is committed", d)
+		}
+	}
+	ignore, err := os.ReadFile(filepath.Join(root, ".gitignore"))
+	if err != nil || !strings.Contains(string(ignore), "\nvendor/\n") {
+		t.Errorf(".gitignore does not name vendor/: %v", err)
+	}
+	docker, err := os.ReadFile(filepath.Join(root, "Dockerfile"))
+	if err != nil || strings.Contains(string(docker), "-mod=vendor") || !strings.Contains(string(docker), "-mod=mod") {
+		t.Errorf("the Dockerfile does not build with -mod=mod: %v", err)
+	}
+}