Add support for go modules.

configmap/updater_test.go

@@ -4,6 +4,8 @@
 package configmap_test
 
 import (
+	"path/filepath"
+	"strings"
 	"testing"
 	"time"
 
@@ -67,6 +69,13 @@ func (s *updaterTestSuite) TearDownTest() {
 func (s *updaterTestSuite) copyTestDataToDir() {
 	copyCmd := exec.Command("cp", "--archive", "testdata", s.tempDir)
 	require.NoError(s.T(), copyCmd.Run(), "copying testdata directory to tempdir must not fail")
+	// We are storing file testdata/9989_09_09_07_32_32.099817316 and renaming it to testdata/..9989_09_09_07_32_32.099817316,
+	// because go modules don't allow repos with files with .. in their filename. See https://github.com/golang/go/issues/27299.
+	for _, p := range []string{firstGoodDir, secondGoodDir, badStaticDir} {
+		pOld := filepath.Join(s.tempDir, "testdata", strings.TrimPrefix(p, ".."))
+		pNew := filepath.Join(s.tempDir, "testdata", p)
+		require.NoError(s.T(), os.Rename(pOld, pNew), "renaming %q to %q failed", pOld, pNew)
+	}
 }
 
 func (s *updaterTestSuite) linkDataDirTo(newDataDir string) {

go.mod

@@ -0,0 +1,14 @@
+module github.com/mwitkow/go-flagz
+
+require (
+	github.com/coreos/etcd v3.3.12+incompatible
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/fsnotify/fsnotify v1.4.7
+	github.com/golang/protobuf v1.3.1
+	github.com/prometheus/client_golang v0.9.2
+	github.com/spf13/pflag v1.0.3
+	github.com/stretchr/testify v1.3.0
+	github.com/ugorji/go v1.1.4 // indirect
+	golang.org/x/net v0.0.0-20190424112056-4829fb13d2c6
+	golang.org/x/sys v0.0.0-20190425145619-16072639606e // indirect
+)