Cirrus: add vendor_check_task

* Make sure that all vendored dependencies are in sync with the code and
  the vendor.conf by running `make vendor` with a follow-up status check
  of the git tree.

* Vendor ginkgo and gomega to include the test dependencies.

Signed-off-by: Chris Evic <cevich@redhat.com>
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/onsi/ginkgo/internal/codelocation/code_location.go

@@ -0,0 +1,32 @@
+package codelocation
+
+import (
+	"regexp"
+	"runtime"
+	"runtime/debug"
+	"strings"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+func New(skip int) types.CodeLocation {
+	_, file, line, _ := runtime.Caller(skip + 1)
+	stackTrace := PruneStack(string(debug.Stack()), skip)
+	return types.CodeLocation{FileName: file, LineNumber: line, FullStackTrace: stackTrace}
+}
+
+func PruneStack(fullStackTrace string, skip int) string {
+	stack := strings.Split(fullStackTrace, "\n")
+	if len(stack) > 2*(skip+1) {
+		stack = stack[2*(skip+1):]
+	}
+	prunedStack := []string{}
+	re := regexp.MustCompile(`\/ginkgo\/|\/pkg\/testing\/|\/pkg\/runtime\/`)
+	for i := 0; i < len(stack)/2; i++ {
+		if !re.Match([]byte(stack[i*2])) {
+			prunedStack = append(prunedStack, stack[i*2])
+			prunedStack = append(prunedStack, stack[i*2+1])
+		}
+	}
+	return strings.Join(prunedStack, "\n")
+}

vendor/github.com/onsi/ginkgo/internal/codelocation/code_location_suite_test.go

@@ -0,0 +1,13 @@
+package codelocation_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"testing"
+)
+
+func TestCodelocation(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "CodeLocation Suite")
+}

vendor/github.com/onsi/ginkgo/internal/codelocation/code_location_test.go

@@ -0,0 +1,80 @@
+package codelocation_test
+
+import (
+	"runtime"
+
+	. "github.com/onsi/ginkgo"
+	"github.com/onsi/ginkgo/internal/codelocation"
+	"github.com/onsi/ginkgo/types"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("CodeLocation", func() {
+	var (
+		codeLocation       types.CodeLocation
+		expectedFileName   string
+		expectedLineNumber int
+	)
+
+	caller0 := func() {
+		codeLocation = codelocation.New(1)
+	}
+
+	caller1 := func() {
+		_, expectedFileName, expectedLineNumber, _ = runtime.Caller(0)
+		expectedLineNumber += 2
+		caller0()
+	}
+
+	BeforeEach(func() {
+		caller1()
+	})
+
+	It("should use the passed in skip parameter to pick out the correct file & line number", func() {
+		Ω(codeLocation.FileName).Should(Equal(expectedFileName))
+		Ω(codeLocation.LineNumber).Should(Equal(expectedLineNumber))
+	})
+
+	Describe("stringer behavior", func() {
+		It("should stringify nicely", func() {
+			Ω(codeLocation.String()).Should(ContainSubstring("code_location_test.go:%d", expectedLineNumber))
+		})
+	})
+
+	//There's no better way than to test this private method as it
+	//goes out of its way to prune out ginkgo related code in the stack trace
+	Describe("PruneStack", func() {
+		It("should remove any references to ginkgo and pkg/testing and pkg/runtime", func() {
+			input := `/Skip/me
+Skip: skip()
+/Skip/me
+Skip: skip()
+/Users/whoever/gospace/src/github.com/onsi/ginkgo/whatever.go:10 (0x12314)
+Something: Func()
+/Users/whoever/gospace/src/github.com/onsi/ginkgo/whatever_else.go:10 (0x12314)
+SomethingInternalToGinkgo: Func()
+/usr/goroot/pkg/strings/oops.go:10 (0x12341)
+Oops: BlowUp()
+/Users/whoever/gospace/src/mycode/code.go:10 (0x12341)
+MyCode: Func()
+/Users/whoever/gospace/src/mycode/code_test.go:10 (0x12341)
+MyCodeTest: Func()
+/Users/whoever/gospace/src/mycode/code_suite_test.go:12 (0x37f08)
+TestFoo: RunSpecs(t, "Foo Suite")
+/usr/goroot/pkg/testing/testing.go:12 (0x37f08)
+TestingT: Blah()
+/usr/goroot/pkg/runtime/runtime.go:12 (0x37f08)
+Something: Func()
+`
+			prunedStack := codelocation.PruneStack(input, 1)
+			Ω(prunedStack).Should(Equal(`/usr/goroot/pkg/strings/oops.go:10 (0x12341)
+Oops: BlowUp()
+/Users/whoever/gospace/src/mycode/code.go:10 (0x12341)
+MyCode: Func()
+/Users/whoever/gospace/src/mycode/code_test.go:10 (0x12341)
+MyCodeTest: Func()
+/Users/whoever/gospace/src/mycode/code_suite_test.go:12 (0x37f08)
+TestFoo: RunSpecs(t, "Foo Suite")`))
+		})
+	})
+})