rebase: remove "github.com/pkg/errors" from go.mod

There is no direct dependency on "github.com/pkg/errors" anymore, so it
can be removed from go.mod.

After running `go mod tidy`, the "github.com/pkg/errors" gets downgraded
to a version that is referenced in other depndencies. This was
unexpected, but seems needed.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

go.mod

@@ -17,7 +17,6 @@ require (
 	github.com/onsi/ginkgo v1.12.0
 	github.com/onsi/gomega v1.9.0
 	github.com/pborman/uuid v1.2.0
-	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.5.1
 	github.com/prometheus/procfs v0.0.11 // indirect
 	go.uber.org/zap v1.14.1 // indirect

go.sum

@@ -453,9 +453,8 @@ github.com/pelletier/go-toml v1.1.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/9
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pquerna/cachecontrol v0.0.0-20171018203845-0dec1b30a021/go.mod h1:prYjPmNq4d1NPVmpShWobRqXY3q7Vp+80DqgxxUrUIA=

vendor/github.com/pkg/errors/.travis.yml

@@ -1,10 +1,15 @@
 language: go
 go_import_path: github.com/pkg/errors
 go:
+  - 1.4.x
+  - 1.5.x
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
   - 1.11.x
-  - 1.12.x
-  - 1.13.x
   - tip
 
 script:
-  - make check
+  - go test -v ./...

vendor/github.com/pkg/errors/Makefile

@@ -1,44 +0,0 @@
-PKGS := github.com/pkg/errors
-SRCDIRS := $(shell go list -f '{{.Dir}}' $(PKGS))
-GO := go
-
-check: test vet gofmt misspell unconvert staticcheck ineffassign unparam
-
-test: 
-	$(GO) test $(PKGS)
-
-vet: | test
-	$(GO) vet $(PKGS)
-
-staticcheck:
-	$(GO) get honnef.co/go/tools/cmd/staticcheck
-	staticcheck -checks all $(PKGS)
-
-misspell:
-	$(GO) get github.com/client9/misspell/cmd/misspell
-	misspell \
-		-locale GB \
-		-error \
-		*.md *.go
-
-unconvert:
-	$(GO) get github.com/mdempsky/unconvert
-	unconvert -v $(PKGS)
-
-ineffassign:
-	$(GO) get github.com/gordonklaus/ineffassign
-	find $(SRCDIRS) -name '*.go' | xargs ineffassign
-
-pedantic: check errcheck
-
-unparam:
-	$(GO) get mvdan.cc/unparam
-	unparam ./...
-
-errcheck:
-	$(GO) get github.com/kisielk/errcheck
-	errcheck $(PKGS)
-
-gofmt:  
-	@echo Checking code is gofmted
-	@test -z "$(shell gofmt -s -l -d -e $(SRCDIRS) | tee /dev/stderr)"

vendor/github.com/pkg/errors/README.md

@@ -41,18 +41,11 @@ default:
 
 [Read the package documentation for more information](https://godoc.org/github.com/pkg/errors).
 
-## Roadmap
-
-With the upcoming [Go2 error proposals](https://go.googlesource.com/proposal/+/master/design/go2draft.md) this package is moving into maintenance mode. The roadmap for a 1.0 release is as follows:
-
-- 0.9. Remove pre Go 1.9 and Go 1.10 support, address outstanding pull requests (if possible)
-- 1.0. Final release.
-
 ## Contributing
 
-Because of the Go2 errors changes, this package is not accepting proposals for new functionality. With that said, we welcome pull requests, bug fixes and issue reports. 
+We welcome pull requests, bug fixes and issue reports. With that said, the bar for adding new symbols to this package is intentionally set high.
 
-Before sending a PR, please discuss your change by raising an issue.
+Before proposing a change, please discuss your change by raising an issue.
 
 ## License
 

vendor/github.com/pkg/errors/errors.go

@@ -82,7 +82,7 @@
 //
 //     if err, ok := err.(stackTracer); ok {
 //             for _, f := range err.StackTrace() {
-//                     fmt.Printf("%+s:%d\n", f, f)
+//                     fmt.Printf("%+s:%d", f)
 //             }
 //     }
 //
@@ -159,9 +159,6 @@ type withStack struct {
 
 func (w *withStack) Cause() error { return w.error }
 
-// Unwrap provides compatibility for Go 1.13 error chains.
-func (w *withStack) Unwrap() error { return w.error }
-
 func (w *withStack) Format(s fmt.State, verb rune) {
 	switch verb {
 	case 'v':
@@ -244,9 +241,6 @@ type withMessage struct {
 func (w *withMessage) Error() string { return w.msg + ": " + w.cause.Error() }
 func (w *withMessage) Cause() error  { return w.cause }
 
-// Unwrap provides compatibility for Go 1.13 error chains.
-func (w *withMessage) Unwrap() error { return w.cause }
-
 func (w *withMessage) Format(s fmt.State, verb rune) {
 	switch verb {
 	case 'v':

vendor/github.com/pkg/errors/go113.go

@@ -1,38 +0,0 @@
-// +build go1.13
-
-package errors
-
-import (
-	stderrors "errors"
-)
-
-// Is reports whether any error in err's chain matches target.
-//
-// The chain consists of err itself followed by the sequence of errors obtained by
-// repeatedly calling Unwrap.
-//
-// An error is considered to match a target if it is equal to that target or if
-// it implements a method Is(error) bool such that Is(target) returns true.
-func Is(err, target error) bool { return stderrors.Is(err, target) }
-
-// As finds the first error in err's chain that matches target, and if so, sets
-// target to that error value and returns true.
-//
-// The chain consists of err itself followed by the sequence of errors obtained by
-// repeatedly calling Unwrap.
-//
-// An error matches target if the error's concrete value is assignable to the value
-// pointed to by target, or if the error has a method As(interface{}) bool such that
-// As(target) returns true. In the latter case, the As method is responsible for
-// setting target.
-//
-// As will panic if target is not a non-nil pointer to either a type that implements
-// error, or to any interface type. As returns false if err is nil.
-func As(err error, target interface{}) bool { return stderrors.As(err, target) }
-
-// Unwrap returns the result of calling the Unwrap method on err, if err's
-// type contains an Unwrap method returning error.
-// Otherwise, Unwrap returns nil.
-func Unwrap(err error) error {
-	return stderrors.Unwrap(err)
-}

vendor/github.com/pkg/errors/stack.go

@@ -5,13 +5,10 @@ import (
 	"io"
 	"path"
 	"runtime"
-	"strconv"
 	"strings"
 )
 
 // Frame represents a program counter inside a stack frame.
-// For historical reasons if Frame is interpreted as a uintptr
-// its value represents the program counter + 1.
 type Frame uintptr
 
 // pc returns the program counter for this frame;
@@ -40,15 +37,6 @@ func (f Frame) line() int {
 	return line
 }
 
-// name returns the name of this function, if known.
-func (f Frame) name() string {
-	fn := runtime.FuncForPC(f.pc())
-	if fn == nil {
-		return "unknown"
-	}
-	return fn.Name()
-}
-
 // Format formats the frame according to the fmt.Formatter interface.
 //
 //    %s    source file
@@ -66,16 +54,22 @@ func (f Frame) Format(s fmt.State, verb rune) {
 	case 's':
 		switch {
 		case s.Flag('+'):
-			io.WriteString(s, f.name())
-			io.WriteString(s, "\n\t")
-			io.WriteString(s, f.file())
+			pc := f.pc()
+			fn := runtime.FuncForPC(pc)
+			if fn == nil {
+				io.WriteString(s, "unknown")
+			} else {
+				file, _ := fn.FileLine(pc)
+				fmt.Fprintf(s, "%s\n\t%s", fn.Name(), file)
+			}
 		default:
 			io.WriteString(s, path.Base(f.file()))
 		}
 	case 'd':
-		io.WriteString(s, strconv.Itoa(f.line()))
+		fmt.Fprintf(s, "%d", f.line())
 	case 'n':
-		io.WriteString(s, funcname(f.name()))
+		name := runtime.FuncForPC(f.pc()).Name()
+		io.WriteString(s, funcname(name))
 	case 'v':
 		f.Format(s, 's')
 		io.WriteString(s, ":")
@@ -83,16 +77,6 @@ func (f Frame) Format(s fmt.State, verb rune) {
 	}
 }
 
-// MarshalText formats a stacktrace Frame as a text string. The output is the
-// same as that of fmt.Sprintf("%+v", f), but without newlines or tabs.
-func (f Frame) MarshalText() ([]byte, error) {
-	name := f.name()
-	if name == "unknown" {
-		return []byte(name), nil
-	}
-	return []byte(fmt.Sprintf("%s %s:%d", name, f.file(), f.line())), nil
-}
-
 // StackTrace is stack of Frames from innermost (newest) to outermost (oldest).
 type StackTrace []Frame
 
@@ -110,32 +94,18 @@ func (st StackTrace) Format(s fmt.State, verb rune) {
 		switch {
 		case s.Flag('+'):
 			for _, f := range st {
-				io.WriteString(s, "\n")
-				f.Format(s, verb)
+				fmt.Fprintf(s, "\n%+v", f)
 			}
 		case s.Flag('#'):
 			fmt.Fprintf(s, "%#v", []Frame(st))
 		default:
-			st.formatSlice(s, verb)
+			fmt.Fprintf(s, "%v", []Frame(st))
 		}
 	case 's':
-		st.formatSlice(s, verb)
+		fmt.Fprintf(s, "%s", []Frame(st))
 	}
 }
 
-// formatSlice will format this StackTrace into the given buffer as a slice of
-// Frame, only valid when called with '%s' or '%v'.
-func (st StackTrace) formatSlice(s fmt.State, verb rune) {
-	io.WriteString(s, "[")
-	for i, f := range st {
-		if i > 0 {
-			io.WriteString(s, " ")
-		}
-		f.Format(s, verb)
-	}
-	io.WriteString(s, "]")
-}
-
 // stack represents a stack of program counters.
 type stack []uintptr
 

vendor/modules.txt

@@ -126,7 +126,7 @@ github.com/onsi/gomega/types
 github.com/opencontainers/go-digest
 # github.com/pborman/uuid v1.2.0
 github.com/pborman/uuid
-# github.com/pkg/errors v0.9.1
+# github.com/pkg/errors v0.8.1
 github.com/pkg/errors
 # github.com/pmezard/go-difflib v1.0.0
 github.com/pmezard/go-difflib/difflib