Update sources to use upstream errors package

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/manifoldco/promptui v0.8.0
 	github.com/opencontainers/image-spec v1.0.2-0.20190823105129-775207bd45b6
 	github.com/opencontainers/umoci v0.4.6
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/spf13/cobra v1.1.1
 	gopkg.in/yaml.v2 v2.4.0
 )

internal/pkg/container/build.go

@@ -6,7 +6,8 @@ import (
 	"os/exec"
 	"path"
 
-	"github.com/hpcng/warewulf/internal/pkg/errors"
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/util"
 	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )

internal/pkg/container/imprt.go

@@ -5,13 +5,13 @@ import (
 	"os"
 	"path"
 
-	"github.com/hpcng/warewulf/internal/pkg/util"
-
 	"github.com/containers/image/v5/types"
 	"github.com/containers/storage/drivers/copy"
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/config"
-	"github.com/hpcng/warewulf/internal/pkg/errors"
 	"github.com/hpcng/warewulf/internal/pkg/oci"
+	"github.com/hpcng/warewulf/internal/pkg/util"
 )
 
 func ImportDocker(uri string, name string, sCtx *types.SystemContext) error {

internal/pkg/container/util.go

@@ -5,8 +5,9 @@ import (
 	"os"
 	"path"
 
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/config"
-	"github.com/hpcng/warewulf/internal/pkg/errors"
 	"github.com/hpcng/warewulf/internal/pkg/util"
 	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )

internal/pkg/errors/errors.go

@@ -1,19 +0,0 @@
-package errors
-
-type error interface {
-	Error() string
-}
-
-// errorString is a trivial implementation of error.
-type errorString struct {
-	s string
-}
-
-func (e *errorString) Error() string {
-	return e.s
-}
-
-// New returns an error that formats as the given text.
-func New(text string) error {
-	return &errorString{text}
-}

internal/pkg/kernel/kernel.go

@@ -7,8 +7,9 @@ import (
 	"os/exec"
 	"path"
 
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/config"
-	"github.com/hpcng/warewulf/internal/pkg/errors"
 	"github.com/hpcng/warewulf/internal/pkg/util"
 	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )

internal/pkg/node/constructors.go

@@ -6,9 +6,10 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/hpcng/warewulf/internal/pkg/errors"
-	"github.com/hpcng/warewulf/internal/pkg/wwlog"
+	"github.com/pkg/errors"
 	"gopkg.in/yaml.v2"
+
+	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )
 
 const ConfigFile = "/etc/warewulf/nodes.conf"

internal/pkg/node/modifiers.go

@@ -3,9 +3,10 @@ package node
 import (
 	"os"
 
-	"github.com/hpcng/warewulf/internal/pkg/errors"
-	"github.com/hpcng/warewulf/internal/pkg/wwlog"
+	"github.com/pkg/errors"
 	"gopkg.in/yaml.v2"
+
+	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )
 
 /****

internal/pkg/overlay/overlay.go

@@ -13,8 +13,9 @@ import (
 	"strings"
 	"text/template"
 
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/config"
-	"github.com/hpcng/warewulf/internal/pkg/errors"
 	"github.com/hpcng/warewulf/internal/pkg/node"
 	"github.com/hpcng/warewulf/internal/pkg/util"
 	"github.com/hpcng/warewulf/internal/pkg/wwlog"

internal/pkg/warewulfd/nodedb.go

@@ -3,7 +3,8 @@ package warewulfd
 import (
 	"sync"
 
-	"github.com/hpcng/warewulf/internal/pkg/errors"
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/node"
 	"github.com/hpcng/warewulf/internal/pkg/wwlog"
 )

internal/pkg/warewulfd/util.go

@@ -8,7 +8,8 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/hpcng/warewulf/internal/pkg/errors"
+	"github.com/pkg/errors"
+
 	"github.com/hpcng/warewulf/internal/pkg/node"
 )