Support projects using go modules

ginkgo/run_watch_and_build_command_flags.go

@@ -126,6 +126,7 @@ func (c *RunWatchAndBuildCommandFlags) flags(mode int) {
 	c.FlagSet.BoolVar(c.boolSlot("work"), "work", false, "Print the name of the temporary work directory and do not delete it when exiting.")
 	c.FlagSet.StringVar(c.stringSlot("asmflags"), "asmflags", "", "Arguments to pass on each go tool asm invocation.")
 	c.FlagSet.StringVar(c.stringSlot("buildmode"), "buildmode", "", "Build mode to use. See 'go help buildmode' for more.")
+	c.FlagSet.StringVar(c.stringSlot("mod"), "mod", "", "Go module control. See 'go help modules' for more.")
 	c.FlagSet.StringVar(c.stringSlot("compiler"), "compiler", "", "Name of compiler to use, as in runtime.Compiler (gccgo or gc).")
 	c.FlagSet.StringVar(c.stringSlot("gccgoflags"), "gccgoflags", "", "Arguments to pass on each gccgo compiler/linker invocation.")
 	c.FlagSet.StringVar(c.stringSlot("installsuffix"), "installsuffix", "", "A suffix to use in the name of the package installation directory.")

ginkgo/testrunner/test_runner.go

@@ -119,6 +119,7 @@ func (t *TestRunner) BuildArgs(path string) []string {
 		"coverpkg",
 		"tags",
 		"gcflags",
+		"mod",
 	}
 
 	for _, opt := range stringOpts {

ginkgo/testrunner/test_runner_test.go

@@ -32,6 +32,7 @@ var _ = Describe("TestRunner", func() {
 			"coverpkg":         strAddr(""),
 			"cover":            boolAddr(false),
 			"blockprofilerate": intAddr(100),
+			"mod":              strAddr("vendor"),
 		}
 		tr := testrunner.New(testsuite.TestSuite{}, 1, false, 0, opts, []string{})
 
@@ -50,6 +51,7 @@ var _ = Describe("TestRunner", func() {
 			"-asmflags=a",
 			"-pkgdir=b",
 			"-gcflags=c",
+			"-mod=vendor",
 		}))
 	})
 })