diff --git a/Gopkg.lock b/Gopkg.lock index 6b60392f..a0616aec 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -2,142 +2,189 @@ [[projects]] + digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39" name = "github.com/davecgh/go-spew" packages = ["spew"] + pruneopts = "NUT" revision = "346938d642f2ec3594ed81d874461961cd0faa76" version = "v1.1.0" [[projects]] + digest = "1:1b91ae0dc69a41d4c2ed23ea5cffb721ea63f5037ca4b81e6d6771fbb8f45129" name = "github.com/fsnotify/fsnotify" packages = ["."] + pruneopts = "NUT" revision = "c2828203cd70a50dcccfb2761f8b1f8ceef9a8e9" version = "v1.4.7" [[projects]] + digest = "1:81466b4218bf6adddac2572a30ac733a9255919bc2f470b4827a317bd4ee1756" name = "github.com/ghodss/yaml" packages = ["."] + pruneopts = "NUT" revision = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7" version = "v1.0.0" [[projects]] + digest = "1:cd4f86461732066e277335465962660cbf02999e18d5bbb5e9285eac4608b970" name = "github.com/gogo/protobuf" packages = [ "gogoproto", "proto", "protoc-gen-gogo/descriptor", - "sortkeys" + "sortkeys", ] + pruneopts = "NUT" revision = "636bf0302bc95575d69441b25a2603156ffdddf1" version = "v1.1.1" [[projects]] branch = "master" + digest = "1:e2b86e41f3d669fc36b50d31d32d22c8ac656c75aa5ea89717ce7177e134ff2a" name = "github.com/golang/glog" packages = ["."] + pruneopts = "NUT" revision = "23def4e6c14b4da8ac2ed8007337bc5eb5007998" [[projects]] + digest = "1:03e14cff610a8a58b774e36bd337fa979482be86aab01be81fb8bbd6d0f07fc8" name = "github.com/golang/protobuf" packages = [ "proto", "ptypes", "ptypes/any", "ptypes/duration", - "ptypes/timestamp" + "ptypes/timestamp", ] + pruneopts = "NUT" revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265" version = "v1.1.0" [[projects]] branch = "master" + digest = "1:245bd4eb633039cd66106a5d340ae826d87f4e36a8602fcc940e14176fd26ea7" name = "github.com/google/btree" packages = ["."] + pruneopts = "NUT" revision = "e89373fe6b4a7413d7acd6da1725b83ef713e6e4" [[projects]] branch = "master" + digest = "1:52c5834e2bebac9030c97cc0798ac11c3aa8a39f098aeb419f142533da6cd3cc" name = "github.com/google/gofuzz" packages = ["."] + pruneopts = "NUT" revision = "24818f796faf91cd76ec7bddd72458fbced7a6c1" [[projects]] + digest = "1:06a7dadb7b760767341ffb6c8d377238d68a1226f2b21b5d497d2e3f6ecf6b4e" name = "github.com/googleapis/gnostic" packages = [ "OpenAPIv2", "compiler", - "extensions" + "extensions", ] + pruneopts = "NUT" revision = "7c663266750e7d82587642f65e60bc4083f1f84e" version = "v0.2.0" [[projects]] branch = "master" + digest = "1:7fdf3223c7372d1ced0b98bf53457c5e89d89aecbad9a77ba9fcc6e01f9e5621" name = "github.com/gregjones/httpcache" packages = [ ".", - "diskcache" + "diskcache", ] + pruneopts = "NUT" revision = "9cad4c3443a7200dd6400aef47183728de563a38" [[projects]] branch = "master" + digest = "1:13e2fa5735a82a5fb044f290cfd0dba633d1c5e516b27da0509e0dbb3515a18e" name = "github.com/hashicorp/golang-lru" packages = [ ".", - "simplelru" + "simplelru", ] + pruneopts = "NUT" revision = "0fb14efe8c47ae851c0034ed7a448854d3d34cf3" [[projects]] + digest = "1:9a52adf44086cead3b384e5d0dbf7a1c1cce65e67552ee3383a8561c42a18cd3" name = "github.com/imdario/mergo" packages = ["."] + pruneopts = "NUT" revision = "9f23e2d6bd2a77f959b2bf6acdbefd708a83a4a4" version = "v0.3.6" [[projects]] + digest = "1:8e36686e8b139f8fe240c1d5cf3a145bc675c22ff8e707857cdd3ae17b00d728" name = "github.com/json-iterator/go" packages = ["."] + pruneopts = "NUT" revision = "1624edc4454b8682399def8740d46db5e4362ba4" version = "1.1.5" [[projects]] + digest = "1:2f42fa12d6911c7b7659738758631bec870b7e9b4c6be5444f963cdcfccc191f" name = "github.com/modern-go/concurrent" packages = ["."] + pruneopts = "NUT" revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94" version = "1.0.3" [[projects]] + digest = "1:c6aca19413b13dc59c220ad7430329e2ec454cc310bc6d8de2c7e2b93c18a0f6" name = "github.com/modern-go/reflect2" packages = ["."] + pruneopts = "NUT" revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd" version = "1.0.1" [[projects]] branch = "master" + digest = "1:3bf17a6e6eaa6ad24152148a631d18662f7212e21637c2699bff3369b7f00fa2" name = "github.com/petar/GoLLRB" packages = ["llrb"] + pruneopts = "NUT" revision = "53be0d36a84c2a886ca057d34b6aa4468df9ccb4" [[projects]] + digest = "1:6c6d91dc326ed6778783cff869c49fb2f61303cdd2ebbcf90abe53505793f3b6" name = "github.com/peterbourgon/diskv" packages = ["."] + pruneopts = "NUT" revision = "5f041e8faa004a95c88a202771f4cc3e991971e6" version = "v2.0.1" [[projects]] + digest = "1:5cf3f025cbee5951a4ee961de067c8a89fc95a5adabead774f82822efabab121" + name = "github.com/pkg/errors" + packages = ["."] + pruneopts = "NUT" + revision = "645ef00459ed84a119197bfb8d8205042c6df63d" + version = "v0.8.0" + +[[projects]] + digest = "1:e3707aeaccd2adc89eba6c062fec72116fe1fc1ba71097da85b4d8ae1668a675" name = "github.com/spf13/pflag" packages = ["."] + pruneopts = "NUT" revision = "9a97c102cda95a86cec2345a6f09f55a939babf5" version = "v1.0.2" [[projects]] branch = "master" + digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8" name = "golang.org/x/crypto" packages = ["ssh/terminal"] + pruneopts = "NUT" revision = "de0752318171da717af4ce24d0a2e8626afaeb11" [[projects]] branch = "master" + digest = "1:98f099782e33665fa7aa22c534581cd4a18f9a06b9af22cf57721019511d74b4" name = "golang.org/x/net" packages = [ "context", @@ -146,20 +193,24 @@ "http2/hpack", "idna", "internal/timeseries", - "trace" + "trace", ] + pruneopts = "NUT" revision = "f9ce57c11b242f0f1599cf25c89d8cb02c45295a" [[projects]] branch = "master" + digest = "1:87aef4c266c820591e859450c3ee5ab98f9b8755d7cfd9e4db606959eb5b483d" name = "golang.org/x/sys" packages = [ "unix", - "windows" + "windows", ] + pruneopts = "NUT" revision = "904bdc257025c7b3f43c19360ad3ab85783fad78" [[projects]] + digest = "1:e7071ed636b5422cc51c0e3a6cebc229d6c9fffc528814b519a980641422d619" name = "golang.org/x/text" packages = [ "collate", @@ -175,34 +226,42 @@ "unicode/bidi", "unicode/cldr", "unicode/norm", - "unicode/rangetable" + "unicode/rangetable", ] + pruneopts = "NUT" revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0" version = "v0.3.0" [[projects]] branch = "master" + digest = "1:c9e7a4b4d47c0ed205d257648b0e5b0440880cb728506e318f8ac7cd36270bc4" name = "golang.org/x/time" packages = ["rate"] + pruneopts = "NUT" revision = "fbb02b2291d28baffd63558aa44b4b56f178d650" [[projects]] branch = "master" + digest = "1:e1c96c8c8ce0af57da9dccb008e540b3d13b55ea04b530fb4fceb81706082bdd" name = "golang.org/x/tools" packages = [ "go/ast/astutil", "imports", - "internal/fastwalk" + "internal/fastwalk", ] + pruneopts = "NUT" revision = "2fad9c56520a6ca94c6960472b921c21a8fa9343" [[projects]] branch = "master" + digest = "1:077c1c599507b3b3e9156d17d36e1e61928ee9b53a5b420f10f28ebd4a0b275c" name = "google.golang.org/genproto" packages = ["googleapis/rpc/status"] + pruneopts = "NUT" revision = "383e8b2c3b9e36c4076b235b32537292176bae20" [[projects]] + digest = "1:c2d756dba3cf0bc2d50ff9b3e4b80cd327436cf678386a51c8417d084625a51d" name = "google.golang.org/grpc" packages = [ ".", @@ -230,25 +289,31 @@ "resolver/passthrough", "stats", "status", - "tap" + "tap", ] + pruneopts = "NUT" revision = "32fb0ac620c32ba40a4626ddf94d90d12cce3455" version = "v1.14.0" [[projects]] + digest = "1:2d1fbdc6777e5408cabeb02bf336305e724b925ff4546ded0fa8715a7267922a" name = "gopkg.in/inf.v0" packages = ["."] + pruneopts = "NUT" revision = "d2d2541c53f18d2a059457998ce2876cc8e67cbf" version = "v0.9.1" [[projects]] + digest = "1:7c95b35057a0ff2e19f707173cc1a947fa43a6eb5c4d300d196ece0334046082" name = "gopkg.in/yaml.v2" packages = ["."] + pruneopts = "NUT" revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183" version = "v2.2.1" [[projects]] branch = "master" + digest = "1:f2d1cf20d271df921c28e96d0d8af3ac43211a891f2bf97cfacefabea8affa70" name = "k8s.io/api" packages = [ "admission/v1beta1", @@ -280,17 +345,21 @@ "settings/v1alpha1", "storage/v1", "storage/v1alpha1", - "storage/v1beta1" + "storage/v1beta1", ] + pruneopts = "NUT" revision = "70491ec73e10be2989242c913738f049a37e72c7" [[projects]] branch = "master" + digest = "1:aff2ac035da399e2ccd6d58a0c484f87a52c82868b652397727c2ce1a3aba7f0" name = "k8s.io/apiextensions-apiserver" packages = ["pkg/features"] + pruneopts = "NUT" revision = "4d05e43ad98c1edcf2f52291685bd9bbc12fd2cd" [[projects]] + digest = "1:1863cb213bf50c1505c7ef97e78ce4e641e4fda9b4e7dc666ad57b094fdaffe8" name = "k8s.io/apimachinery" packages = [ "pkg/api/errors", @@ -333,21 +402,25 @@ "pkg/version", "pkg/watch", "third_party/forked/golang/json", - "third_party/forked/golang/reflect" + "third_party/forked/golang/reflect", ] + pruneopts = "NUT" revision = "103fd098999dc9c0c88536f5c9ad2e5da39373ae" version = "kubernetes-1.11.0" [[projects]] branch = "master" + digest = "1:532581eda44a6fdb169ab6d654c90e7246c49ff0692c551fabcd3e03b9bfa93e" name = "k8s.io/apiserver" packages = [ "pkg/features", - "pkg/util/feature" + "pkg/util/feature", ] + pruneopts = "NUT" revision = "f26e5b1f0e9c0ddd9bbff06bf6facf000baffe8f" [[projects]] + digest = "1:408600b610dfa70d4582595301b58ce28122ed441658e8e655a17a18c9a6c3aa" name = "k8s.io/client-go" packages = [ "discovery", @@ -408,12 +481,14 @@ "util/homedir", "util/integer", "util/retry", - "util/workqueue" + "util/workqueue", ] + pruneopts = "NUT" revision = "7d04d0e2a0a1a4d4a1cd6baa432a2301492e4e65" version = "v8.0.0" [[projects]] + digest = "1:8ab487a323486c8bbbaa3b689850487fdccc6cbea8690620e083b2d230a4447e" name = "k8s.io/code-generator" packages = [ "cmd/client-gen", @@ -434,13 +509,15 @@ "cmd/lister-gen", "cmd/lister-gen/args", "cmd/lister-gen/generators", - "pkg/util" + "pkg/util", ] + pruneopts = "T" revision = "6702109cc68eb6fe6350b83e14407c8d7309fd1a" version = "kubernetes-1.11.0" [[projects]] branch = "master" + digest = "1:5249c83f0fb9e277b2d28c19eca814feac7ef05dc762e4deaf0a2e4b1a7c5df3" name = "k8s.io/gengo" packages = [ "args", @@ -450,40 +527,85 @@ "generator", "namer", "parser", - "types" + "types", ] + pruneopts = "NUT" revision = "c42f3cdacc394f43077ff17e327d1b351c0304e4" [[projects]] branch = "master" + digest = "1:a2c842a1e0aed96fd732b535514556323a6f5edfded3b63e5e0ab1bce188aa54" name = "k8s.io/kube-openapi" packages = ["pkg/util/proto"] + pruneopts = "NUT" revision = "e3762e86a74c878ffed47484592986685639c2cd" [[projects]] + digest = "1:e357138048f5ba471a540b3451a8820e7e76595fcb49632480bcbf2e4aab62ac" name = "k8s.io/kubernetes" packages = [ "pkg/apis/core", "pkg/features", "pkg/kubelet/apis", "pkg/kubelet/apis/deviceplugin/v1beta1", - "pkg/util/node" + "pkg/util/node", ] + pruneopts = "NUT" revision = "bb9ffb1654d4a729bb4cec18ff088eacc153c239" version = "v1.11.2" [[projects]] branch = "master" + digest = "1:1ff016649ea9f95bbc11850683ed8a9b1788c2a2a8b1b811793344f730628a9f" name = "k8s.io/utils" packages = [ "exec", - "exec/testing" + "exec/testing", ] + pruneopts = "NUT" revision = "045dc31ee5c40e8240241ce28dc24d7b56130373" [solve-meta] analyzer-name = "dep" analyzer-version = 1 - inputs-digest = "e631bc45585e5188f4ad4251919a7d8b6223142c229aad5a806a1162a83e3aa4" + input-imports = [ + "github.com/fsnotify/fsnotify", + "github.com/golang/glog", + "github.com/pkg/errors", + "google.golang.org/grpc", + "google.golang.org/grpc/metadata", + "k8s.io/api/admission/v1beta1", + "k8s.io/api/admissionregistration/v1beta1", + "k8s.io/api/core/v1", + "k8s.io/apimachinery/pkg/api/errors", + "k8s.io/apimachinery/pkg/api/resource", + "k8s.io/apimachinery/pkg/apis/meta/v1", + "k8s.io/apimachinery/pkg/labels", + "k8s.io/apimachinery/pkg/runtime", + "k8s.io/apimachinery/pkg/runtime/schema", + "k8s.io/apimachinery/pkg/runtime/serializer", + "k8s.io/apimachinery/pkg/types", + "k8s.io/apimachinery/pkg/util/runtime", + "k8s.io/apimachinery/pkg/util/wait", + "k8s.io/apimachinery/pkg/watch", + "k8s.io/client-go/discovery", + "k8s.io/client-go/discovery/fake", + "k8s.io/client-go/kubernetes", + "k8s.io/client-go/rest", + "k8s.io/client-go/testing", + "k8s.io/client-go/tools/cache", + "k8s.io/client-go/tools/clientcmd", + "k8s.io/client-go/util/flowcontrol", + "k8s.io/client-go/util/workqueue", + "k8s.io/code-generator/cmd/client-gen", + "k8s.io/code-generator/cmd/deepcopy-gen", + "k8s.io/code-generator/cmd/defaulter-gen", + "k8s.io/code-generator/cmd/informer-gen", + "k8s.io/code-generator/cmd/lister-gen", + "k8s.io/kubernetes/pkg/kubelet/apis/deviceplugin/v1beta1", + "k8s.io/kubernetes/pkg/util/node", + "k8s.io/utils/exec", + "k8s.io/utils/exec/testing", + ] solver-name = "gps-cdcl" solver-version = 1 diff --git a/vendor/github.com/pkg/errors/LICENSE b/vendor/github.com/pkg/errors/LICENSE new file mode 100644 index 00000000..835ba3e7 --- /dev/null +++ b/vendor/github.com/pkg/errors/LICENSE @@ -0,0 +1,23 @@ +Copyright (c) 2015, Dave Cheney +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/pkg/errors/errors.go b/vendor/github.com/pkg/errors/errors.go new file mode 100644 index 00000000..842ee804 --- /dev/null +++ b/vendor/github.com/pkg/errors/errors.go @@ -0,0 +1,269 @@ +// Package errors provides simple error handling primitives. +// +// The traditional error handling idiom in Go is roughly akin to +// +// if err != nil { +// return err +// } +// +// which applied recursively up the call stack results in error reports +// without context or debugging information. The errors package allows +// programmers to add context to the failure path in their code in a way +// that does not destroy the original value of the error. +// +// Adding context to an error +// +// The errors.Wrap function returns a new error that adds context to the +// original error by recording a stack trace at the point Wrap is called, +// and the supplied message. For example +// +// _, err := ioutil.ReadAll(r) +// if err != nil { +// return errors.Wrap(err, "read failed") +// } +// +// If additional control is required the errors.WithStack and errors.WithMessage +// functions destructure errors.Wrap into its component operations of annotating +// an error with a stack trace and an a message, respectively. +// +// Retrieving the cause of an error +// +// Using errors.Wrap constructs a stack of errors, adding context to the +// preceding error. Depending on the nature of the error it may be necessary +// to reverse the operation of errors.Wrap to retrieve the original error +// for inspection. Any error value which implements this interface +// +// type causer interface { +// Cause() error +// } +// +// can be inspected by errors.Cause. errors.Cause will recursively retrieve +// the topmost error which does not implement causer, which is assumed to be +// the original cause. For example: +// +// switch err := errors.Cause(err).(type) { +// case *MyError: +// // handle specifically +// default: +// // unknown error +// } +// +// causer interface is not exported by this package, but is considered a part +// of stable public API. +// +// Formatted printing of errors +// +// All error values returned from this package implement fmt.Formatter and can +// be formatted by the fmt package. The following verbs are supported +// +// %s print the error. If the error has a Cause it will be +// printed recursively +// %v see %s +// %+v extended format. Each Frame of the error's StackTrace will +// be printed in detail. +// +// Retrieving the stack trace of an error or wrapper +// +// New, Errorf, Wrap, and Wrapf record a stack trace at the point they are +// invoked. This information can be retrieved with the following interface. +// +// type stackTracer interface { +// StackTrace() errors.StackTrace +// } +// +// Where errors.StackTrace is defined as +// +// type StackTrace []Frame +// +// The Frame type represents a call site in the stack trace. Frame supports +// the fmt.Formatter interface that can be used for printing information about +// the stack trace of this error. For example: +// +// if err, ok := err.(stackTracer); ok { +// for _, f := range err.StackTrace() { +// fmt.Printf("%+s:%d", f) +// } +// } +// +// stackTracer interface is not exported by this package, but is considered a part +// of stable public API. +// +// See the documentation for Frame.Format for more details. +package errors + +import ( + "fmt" + "io" +) + +// New returns an error with the supplied message. +// New also records the stack trace at the point it was called. +func New(message string) error { + return &fundamental{ + msg: message, + stack: callers(), + } +} + +// Errorf formats according to a format specifier and returns the string +// as a value that satisfies error. +// Errorf also records the stack trace at the point it was called. +func Errorf(format string, args ...interface{}) error { + return &fundamental{ + msg: fmt.Sprintf(format, args...), + stack: callers(), + } +} + +// fundamental is an error that has a message and a stack, but no caller. +type fundamental struct { + msg string + *stack +} + +func (f *fundamental) Error() string { return f.msg } + +func (f *fundamental) Format(s fmt.State, verb rune) { + switch verb { + case 'v': + if s.Flag('+') { + io.WriteString(s, f.msg) + f.stack.Format(s, verb) + return + } + fallthrough + case 's': + io.WriteString(s, f.msg) + case 'q': + fmt.Fprintf(s, "%q", f.msg) + } +} + +// WithStack annotates err with a stack trace at the point WithStack was called. +// If err is nil, WithStack returns nil. +func WithStack(err error) error { + if err == nil { + return nil + } + return &withStack{ + err, + callers(), + } +} + +type withStack struct { + error + *stack +} + +func (w *withStack) Cause() error { return w.error } + +func (w *withStack) Format(s fmt.State, verb rune) { + switch verb { + case 'v': + if s.Flag('+') { + fmt.Fprintf(s, "%+v", w.Cause()) + w.stack.Format(s, verb) + return + } + fallthrough + case 's': + io.WriteString(s, w.Error()) + case 'q': + fmt.Fprintf(s, "%q", w.Error()) + } +} + +// Wrap returns an error annotating err with a stack trace +// at the point Wrap is called, and the supplied message. +// If err is nil, Wrap returns nil. +func Wrap(err error, message string) error { + if err == nil { + return nil + } + err = &withMessage{ + cause: err, + msg: message, + } + return &withStack{ + err, + callers(), + } +} + +// Wrapf returns an error annotating err with a stack trace +// at the point Wrapf is call, and the format specifier. +// If err is nil, Wrapf returns nil. +func Wrapf(err error, format string, args ...interface{}) error { + if err == nil { + return nil + } + err = &withMessage{ + cause: err, + msg: fmt.Sprintf(format, args...), + } + return &withStack{ + err, + callers(), + } +} + +// WithMessage annotates err with a new message. +// If err is nil, WithMessage returns nil. +func WithMessage(err error, message string) error { + if err == nil { + return nil + } + return &withMessage{ + cause: err, + msg: message, + } +} + +type withMessage struct { + cause error + msg string +} + +func (w *withMessage) Error() string { return w.msg + ": " + w.cause.Error() } +func (w *withMessage) Cause() error { return w.cause } + +func (w *withMessage) Format(s fmt.State, verb rune) { + switch verb { + case 'v': + if s.Flag('+') { + fmt.Fprintf(s, "%+v\n", w.Cause()) + io.WriteString(s, w.msg) + return + } + fallthrough + case 's', 'q': + io.WriteString(s, w.Error()) + } +} + +// Cause returns the underlying cause of the error, if possible. +// An error value has a cause if it implements the following +// interface: +// +// type causer interface { +// Cause() error +// } +// +// If the error does not implement Cause, the original error will +// be returned. If the error is nil, nil will be returned without further +// investigation. +func Cause(err error) error { + type causer interface { + Cause() error + } + + for err != nil { + cause, ok := err.(causer) + if !ok { + break + } + err = cause.Cause() + } + return err +} diff --git a/vendor/github.com/pkg/errors/stack.go b/vendor/github.com/pkg/errors/stack.go new file mode 100644 index 00000000..6b1f2891 --- /dev/null +++ b/vendor/github.com/pkg/errors/stack.go @@ -0,0 +1,178 @@ +package errors + +import ( + "fmt" + "io" + "path" + "runtime" + "strings" +) + +// Frame represents a program counter inside a stack frame. +type Frame uintptr + +// pc returns the program counter for this frame; +// multiple frames may have the same PC value. +func (f Frame) pc() uintptr { return uintptr(f) - 1 } + +// file returns the full path to the file that contains the +// function for this Frame's pc. +func (f Frame) file() string { + fn := runtime.FuncForPC(f.pc()) + if fn == nil { + return "unknown" + } + file, _ := fn.FileLine(f.pc()) + return file +} + +// line returns the line number of source code of the +// function for this Frame's pc. +func (f Frame) line() int { + fn := runtime.FuncForPC(f.pc()) + if fn == nil { + return 0 + } + _, line := fn.FileLine(f.pc()) + return line +} + +// Format formats the frame according to the fmt.Formatter interface. +// +// %s source file +// %d source line +// %n function name +// %v equivalent to %s:%d +// +// Format accepts flags that alter the printing of some verbs, as follows: +// +// %+s path of source file relative to the compile time GOPATH +// %+v equivalent to %+s:%d +func (f Frame) Format(s fmt.State, verb rune) { + switch verb { + case 's': + switch { + case s.Flag('+'): + 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': + fmt.Fprintf(s, "%d", f.line()) + case 'n': + name := runtime.FuncForPC(f.pc()).Name() + io.WriteString(s, funcname(name)) + case 'v': + f.Format(s, 's') + io.WriteString(s, ":") + f.Format(s, 'd') + } +} + +// StackTrace is stack of Frames from innermost (newest) to outermost (oldest). +type StackTrace []Frame + +func (st StackTrace) Format(s fmt.State, verb rune) { + switch verb { + case 'v': + switch { + case s.Flag('+'): + for _, f := range st { + fmt.Fprintf(s, "\n%+v", f) + } + case s.Flag('#'): + fmt.Fprintf(s, "%#v", []Frame(st)) + default: + fmt.Fprintf(s, "%v", []Frame(st)) + } + case 's': + fmt.Fprintf(s, "%s", []Frame(st)) + } +} + +// stack represents a stack of program counters. +type stack []uintptr + +func (s *stack) Format(st fmt.State, verb rune) { + switch verb { + case 'v': + switch { + case st.Flag('+'): + for _, pc := range *s { + f := Frame(pc) + fmt.Fprintf(st, "\n%+v", f) + } + } + } +} + +func (s *stack) StackTrace() StackTrace { + f := make([]Frame, len(*s)) + for i := 0; i < len(f); i++ { + f[i] = Frame((*s)[i]) + } + return f +} + +func callers() *stack { + const depth = 32 + var pcs [depth]uintptr + n := runtime.Callers(3, pcs[:]) + var st stack = pcs[0:n] + return &st +} + +// funcname removes the path prefix component of a function's name reported by func.Name(). +func funcname(name string) string { + i := strings.LastIndex(name, "/") + name = name[i+1:] + i = strings.Index(name, ".") + return name[i+1:] +} + +func trimGOPATH(name, file string) string { + // Here we want to get the source file path relative to the compile time + // GOPATH. As of Go 1.6.x there is no direct way to know the compiled + // GOPATH at runtime, but we can infer the number of path segments in the + // GOPATH. We note that fn.Name() returns the function name qualified by + // the import path, which does not include the GOPATH. Thus we can trim + // segments from the beginning of the file path until the number of path + // separators remaining is one more than the number of path separators in + // the function name. For example, given: + // + // GOPATH /home/user + // file /home/user/src/pkg/sub/file.go + // fn.Name() pkg/sub.Type.Method + // + // We want to produce: + // + // pkg/sub/file.go + // + // From this we can easily see that fn.Name() has one less path separator + // than our desired output. We count separators from the end of the file + // path until it finds two more than in the function name and then move + // one character forward to preserve the initial path segment without a + // leading separator. + const sep = "/" + goal := strings.Count(name, sep) + 2 + i := len(file) + for n := 0; n < goal; n++ { + i = strings.LastIndex(file[:i], sep) + if i == -1 { + // not enough separators found, set i so that the slice expression + // below leaves file unmodified + i = -len(sep) + break + } + } + // get back to 0 or trim the leading separator + file = file[i+len(sep):] + return file +}