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Merge pull request #1978 from erikwilson/nocode

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Replace juju/errors with nocode
This commit is contained in:
Erik Wilson 2020-06-30 14:24:09 -07:00 committed by GitHub
commit 6cc4c8516e
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18 changed files with 239 additions and 1842 deletions
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4
go.mod
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@ -25,6 +25,7 @@ replace (
github.com/golangci/gosec => github.com/golangci/gosec v0.0.0-20190211064107-66fb7fc33547
github.com/golangci/ineffassign => github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc
github.com/golangci/lint-1 => github.com/golangci/lint-1 v0.0.0-20190420132249-ee948d087217
github.com/juju/errors => github.com/rancher/nocode v0.0.0-20200630202308-cb097102c09f
github.com/kubernetes-sigs/cri-tools => github.com/rancher/cri-tools v1.18.0-k3s1
github.com/matryer/moq => github.com/rancher/moq v0.0.0-20190404221404-ee5226d43009
github.com/opencontainers/runtime-spec => github.com/opencontainers/runtime-spec v0.0.0-20180911193056-5684b8af48c1
@ -87,8 +88,6 @@ require (
github.com/google/uuid v1.1.1
github.com/gorilla/mux v1.7.3
github.com/gorilla/websocket v1.4.1
github.com/juju/errors v0.0.0-20190806202954-0232dcc7464d // indirect
github.com/juju/testing v0.0.0-20190723135506-ce30eb24acd2 // indirect
github.com/kubernetes-sigs/cri-tools v0.0.0-00010101000000-000000000000
github.com/lib/pq v1.1.1
github.com/mattn/go-sqlite3 v1.13.0
@ -114,7 +113,6 @@ require (
golang.org/x/net v0.0.0-20191204025024-5ee1b9f4859a
golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e
google.golang.org/grpc v1.26.0
gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect
gopkg.in/yaml.v2 v2.2.8
k8s.io/api v0.18.0
k8s.io/apimachinery v0.18.0

9
go.sum
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@ -441,14 +441,9 @@ github.com/json-iterator/go v1.1.8 h1:QiWkFLKq0T7mpzwOTu6BzNDbfTE8OLrYhVKYMLF46O
github.com/json-iterator/go v1.1.8/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/juju/errors v0.0.0-20180806074554-22422dad46e1/go.mod h1:W54LbzXuIE0boCoNJfwqpmkKJ1O4TCTZMetAt6jGk7Q=
github.com/juju/errors v0.0.0-20190806202954-0232dcc7464d h1:hJXjZMxj0SWlMoQkzeZDLi2cmeiWKa7y1B8Rg+qaoEc=
github.com/juju/errors v0.0.0-20190806202954-0232dcc7464d/go.mod h1:W54LbzXuIE0boCoNJfwqpmkKJ1O4TCTZMetAt6jGk7Q=
github.com/juju/loggo v0.0.0-20190526231331-6e530bcce5d8 h1:UUHMLvzt/31azWTN/ifGWef4WUqvXk0iRqdhdy/2uzI=
github.com/juju/loggo v0.0.0-20190526231331-6e530bcce5d8/go.mod h1:vgyd7OREkbtVEN/8IXZe5Ooef3LQePvuBm9UWj6ZL8U=
github.com/juju/testing v0.0.0-20190613124551-e81189438503/go.mod h1:63prj8cnj0tU0S9OHjGJn+b1h0ZghCndfnbQolrYTwA=
github.com/juju/testing v0.0.0-20190723135506-ce30eb24acd2 h1:Pp8RxiF4rSoXP9SED26WCfNB28/dwTDpPXS8XMJR8rc=
github.com/juju/testing v0.0.0-20190723135506-ce30eb24acd2/go.mod h1:63prj8cnj0tU0S9OHjGJn+b1h0ZghCndfnbQolrYTwA=
github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
github.com/karrick/godirwalk v1.7.5 h1:VbzFqwXwNbAZoA6W5odrLr+hKK197CcENcPh6E/gJ0M=
github.com/karrick/godirwalk v1.7.5/go.mod h1:2c9FRhkDxdIbgkOnCEvnSWs71Bhugbl46shStcFDJ34=
@ -674,6 +669,8 @@ github.com/rancher/kubernetes/staging/src/k8s.io/metrics v1.18.4-k3s1 h1:xHggZMz
github.com/rancher/kubernetes/staging/src/k8s.io/metrics v1.18.4-k3s1/go.mod h1:xZM9EdJpWjqIWPvLiCP7vYKUEMwIgc0S8nc/MlLVK3Y=
github.com/rancher/kubernetes/staging/src/k8s.io/sample-apiserver v1.18.4-k3s1/go.mod h1:p8OmVbdzpawdZ/r9E1qcdJpzRirEg4OcSg8aZVWqvJo=
github.com/rancher/moq v0.0.0-20190404221404-ee5226d43009/go.mod h1:wpITyDPTi/Na5h73XkbuEf2AP9fbgrIGqqxVzFhYD6U=
github.com/rancher/nocode v0.0.0-20200630202308-cb097102c09f h1:mX6kuT3Ah9v1iEO3rgCQ7ZH9heVh67r3a9l94ua8P7U=
github.com/rancher/nocode v0.0.0-20200630202308-cb097102c09f/go.mod h1:iAAt6Amgbysi6srDJs9SxGSbG2j/JSRb/xCrnEtA69g=
github.com/rancher/remotedialer v0.2.0 h1:xD7t3K6JYwTdAsxmGtTHQMkEkFgKouQ1foLxVW424Dc=
github.com/rancher/remotedialer v0.2.0/go.mod h1:tkU8ZvrR5lRgaKWaX71nAy6daeqvPFx/lJEnbW7tXSI=
github.com/rancher/wrangler v0.1.4/go.mod h1:EYP7cqpg42YqElaCm+U9ieSrGQKAXxUH5xsr+XGpWyE=
@ -1014,8 +1011,6 @@ gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/mcuadros/go-syslog.v2 v2.2.1/go.mod h1:l5LPIyOOyIdQquNg+oU6Z3524YwrcqEm0aKH+5zpt2U=
gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 h1:VpOs+IwYnYBaFnrNAeB8UUWtL3vEUnzSCL1nVjPhqrw=
gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=

23
vendor/github.com/juju/errors/.gitignore generated vendored
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@ -1,23 +0,0 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test

1
vendor/github.com/juju/errors/CONTRIBUTING.md generated vendored Normal file
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@ -0,0 +1 @@
All changes are welcome as long as no code is involved. If you run into any bugs, please file an issue and explain how that was even possible.

1
vendor/github.com/juju/errors/Dockerfile generated vendored Normal file
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@ -0,0 +1 @@
FROM scratch

327
vendor/github.com/juju/errors/LICENSE generated vendored
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@ -1,191 +1,202 @@
All files in this repository are licensed as follows. If you contribute
to this repository, it is assumed that you license your contribution
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All files Copyright (C) 2015 Canonical Ltd. unless otherwise specified in the file.
Apache License
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http://www.apache.org/licenses/
This software is licensed under the LGPLv3, included below.
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24
vendor/github.com/juju/errors/Makefile generated vendored
View File

@ -1,24 +0,0 @@
PROJECT := github.com/juju/errors
.PHONY: check-licence check-go check docs
check: check-licence check-go
go test $(PROJECT)/...
check-licence:
@(fgrep -rl "Licensed under the LGPLv3" --exclude *.s .;\
fgrep -rl "MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT" --exclude *.s .;\
find . -name "*.go") | sed -e 's,\./,,' | sort | uniq -u | \
xargs -I {} echo FAIL: licence missed: {}
check-go:
$(eval GOFMT := $(strip $(shell gofmt -l .| sed -e "s/^/ /g")))
@(if [ x$(GOFMT) != x"" ]; then \
echo go fmt is sad: $(GOFMT); \
exit 1; \
fi )
@(go tool vet -all -composites=false -copylocks=false .)
docs:
godoc2md github.com/juju/errors > README.md
sed -i '5i[\[GoDoc](https://godoc.org/github.com/juju/errors?status.svg)](https://godoc.org/github.com/juju/errors)' README.md

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# No Code
# errors
import "github.com/juju/errors"
No code is the best way to write secure and reliable applications. Write nothing; deploy nowhere.
[![GoDoc](https://godoc.org/github.com/juju/errors?status.svg)](https://godoc.org/github.com/juju/errors)
## Getting Started
The juju/errors provides an easy way to annotate errors without losing the
orginal error context.
Start by not writing any code.
The exported `New` and `Errorf` functions are designed to replace the
`errors.New` and `fmt.Errorf` functions respectively. The same underlying
error is there, but the package also records the location at which the error
was created.
A primary use case for this library is to add extra context any time an
error is returned from a function.
if err := SomeFunc(); err != nil {
return err
}
This instead becomes:
if err := SomeFunc(); err != nil {
return errors.Trace(err)
}
which just records the file and line number of the Trace call, or
if err := SomeFunc(); err != nil {
return errors.Annotate(err, "more context")
}
which also adds an annotation to the error.
When you want to check to see if an error is of a particular type, a helper
function is normally exported by the package that returned the error, like the
`os` package does. The underlying cause of the error is available using the
`Cause` function.
os.IsNotExist(errors.Cause(err))
The result of the `Error()` call on an annotated error is the annotations joined
with colons, then the result of the `Error()` method for the underlying error
that was the cause.
err := errors.Errorf("original")
err = errors.Annotatef(err, "context")
err = errors.Annotatef(err, "more context")
err.Error() -> "more context: context: original"
Obviously recording the file, line and functions is not very useful if you
cannot get them back out again.
errors.ErrorStack(err)
will return something like:
first error
github.com/juju/errors/annotation_test.go:193:
github.com/juju/errors/annotation_test.go:194: annotation
github.com/juju/errors/annotation_test.go:195:
github.com/juju/errors/annotation_test.go:196: more context
github.com/juju/errors/annotation_test.go:197:
The first error was generated by an external system, so there was no location
associated. The second, fourth, and last lines were generated with Trace calls,
and the other two through Annotate.
Sometimes when responding to an error you want to return a more specific error
for the situation.
if err := FindField(field); err != nil {
return errors.Wrap(err, errors.NotFoundf(field))
}
This returns an error where the complete error stack is still available, and
`errors.Cause()` will return the `NotFound` error.
## func AlreadyExistsf
``` go
func AlreadyExistsf(format string, args ...interface{}) error
```
AlreadyExistsf returns an error which satisfies IsAlreadyExists().
## func Annotate
``` go
func Annotate(other error, message string) error
```
Annotate is used to add extra context to an existing error. The location of
the Annotate call is recorded with the annotations. The file, line and
function are also recorded.
For example:
This is just an example application, but imagine it doing anything you want. Adding new features is easy too:
if err := SomeFunc(); err != nil {
return errors.Annotate(err, "failed to frombulate")
}
## func Annotatef
``` go
func Annotatef(other error, format string, args ...interface{}) error
```
Annotatef is used to add extra context to an existing error. The location of
the Annotate call is recorded with the annotations. The file, line and
function are also recorded.
For example:
if err := SomeFunc(); err != nil {
return errors.Annotatef(err, "failed to frombulate the %s", arg)
}
## func BadRequestf
``` go
func BadRequestf(format string, args ...interface{}) error
```
BadRequestf returns an error which satisfies IsBadRequest().
The possibilities are endless.
### Building the Application
Now that you have not done anything it's time to build your application:
## func Cause
``` go
func Cause(err error) error
```
Cause returns the cause of the given error. This will be either the
original error, or the result of a Wrap or Mask call.
Cause is the usual way to diagnose errors that may have been wrapped by
the other errors functions.
## func DeferredAnnotatef
``` go
func DeferredAnnotatef(err *error, format string, args ...interface{})
```
DeferredAnnotatef annotates the given error (when it is not nil) with the given
format string and arguments (like fmt.Sprintf). If *err is nil, DeferredAnnotatef
does nothing. This method is used in a defer statement in order to annotate any
resulting error with the same message.
For example:
Yep. That's it. You should see the following output:
defer DeferredAnnotatef(&err, "failed to frombulate the %s", arg)
## func Details
``` go
func Details(err error) string
```
Details returns information about the stack of errors wrapped by err, in
the format:
[{filename:99: error one} {otherfile:55: cause of error one}]
This is a terse alternative to ErrorStack as it returns a single line.
## func ErrorStack
``` go
func ErrorStack(err error) string
```
ErrorStack returns a string representation of the annotated error. If the
error passed as the parameter is not an annotated error, the result is
simply the result of the Error() method on that error.
If the error is an annotated error, a multi-line string is returned where
each line represents one entry in the annotation stack. The full filename
from the call stack is used in the output.
### Deploying
While you still have not done anything it's time to deploy your application. By running the following command you can deploy your application absolutely nowhere.
first error
github.com/juju/errors/annotation_test.go:193:
github.com/juju/errors/annotation_test.go:194: annotation
github.com/juju/errors/annotation_test.go:195:
github.com/juju/errors/annotation_test.go:196: more context
github.com/juju/errors/annotation_test.go:197:
## func Errorf
``` go
func Errorf(format string, args ...interface{}) error
```
Errorf creates a new annotated error and records the location that the
error is created. This should be a drop in replacement for fmt.Errorf.
For example:
return errors.Errorf("validation failed: %s", message)
## func Forbiddenf
``` go
func Forbiddenf(format string, args ...interface{}) error
```
Forbiddenf returns an error which satistifes IsForbidden()
It's that simple. And when it comes time to scale the application, all you have to do is:
## func IsAlreadyExists
``` go
func IsAlreadyExists(err error) bool
```
IsAlreadyExists reports whether the error was created with
AlreadyExistsf() or NewAlreadyExists().
## func IsBadRequest
``` go
func IsBadRequest(err error) bool
```
IsBadRequest reports whether err was created with BadRequestf() or
NewBadRequest().
I know right?
## func IsForbidden
``` go
func IsForbidden(err error) bool
```
IsForbidden reports whether err was created with Forbiddenf() or
NewForbidden().
## Contributing
## func IsMethodNotAllowed
``` go
func IsMethodNotAllowed(err error) bool
```
IsMethodNotAllowed reports whether err was created with MethodNotAllowedf() or
NewMethodNotAllowed().
## func IsNotAssigned
``` go
func IsNotAssigned(err error) bool
```
IsNotAssigned reports whether err was created with NotAssignedf() or
NewNotAssigned().
## func IsNotFound
``` go
func IsNotFound(err error) bool
```
IsNotFound reports whether err was created with NotFoundf() or
NewNotFound().
## func IsNotImplemented
``` go
func IsNotImplemented(err error) bool
```
IsNotImplemented reports whether err was created with
NotImplementedf() or NewNotImplemented().
## func IsNotProvisioned
``` go
func IsNotProvisioned(err error) bool
```
IsNotProvisioned reports whether err was created with NotProvisionedf() or
NewNotProvisioned().
## func IsNotSupported
``` go
func IsNotSupported(err error) bool
```
IsNotSupported reports whether the error was created with
NotSupportedf() or NewNotSupported().
## func IsNotValid
``` go
func IsNotValid(err error) bool
```
IsNotValid reports whether the error was created with NotValidf() or
NewNotValid().
## func IsUnauthorized
``` go
func IsUnauthorized(err error) bool
```
IsUnauthorized reports whether err was created with Unauthorizedf() or
NewUnauthorized().
## func IsUserNotFound
``` go
func IsUserNotFound(err error) bool
```
IsUserNotFound reports whether err was created with UserNotFoundf() or
NewUserNotFound().
## func Mask
``` go
func Mask(other error) error
```
Mask hides the underlying error type, and records the location of the masking.
## func Maskf
``` go
func Maskf(other error, format string, args ...interface{}) error
```
Mask masks the given error with the given format string and arguments (like
fmt.Sprintf), returning a new error that maintains the error stack, but
hides the underlying error type. The error string still contains the full
annotations. If you want to hide the annotations, call Wrap.
## func MethodNotAllowedf
``` go
func MethodNotAllowedf(format string, args ...interface{}) error
```
MethodNotAllowedf returns an error which satisfies IsMethodNotAllowed().
## func New
``` go
func New(message string) error
```
New is a drop in replacement for the standard library errors module that records
the location that the error is created.
For example:
return errors.New("validation failed")
## func NewAlreadyExists
``` go
func NewAlreadyExists(err error, msg string) error
```
NewAlreadyExists returns an error which wraps err and satisfies
IsAlreadyExists().
## func NewBadRequest
``` go
func NewBadRequest(err error, msg string) error
```
NewBadRequest returns an error which wraps err that satisfies
IsBadRequest().
## func NewForbidden
``` go
func NewForbidden(err error, msg string) error
```
NewForbidden returns an error which wraps err that satisfies
IsForbidden().
## func NewMethodNotAllowed
``` go
func NewMethodNotAllowed(err error, msg string) error
```
NewMethodNotAllowed returns an error which wraps err that satisfies
IsMethodNotAllowed().
## func NewNotAssigned
``` go
func NewNotAssigned(err error, msg string) error
```
NewNotAssigned returns an error which wraps err that satisfies
IsNotAssigned().
## func NewNotFound
``` go
func NewNotFound(err error, msg string) error
```
NewNotFound returns an error which wraps err that satisfies
IsNotFound().
## func NewNotImplemented
``` go
func NewNotImplemented(err error, msg string) error
```
NewNotImplemented returns an error which wraps err and satisfies
IsNotImplemented().
## func NewNotProvisioned
``` go
func NewNotProvisioned(err error, msg string) error
```
NewNotProvisioned returns an error which wraps err that satisfies
IsNotProvisioned().
## func NewNotSupported
``` go
func NewNotSupported(err error, msg string) error
```
NewNotSupported returns an error which wraps err and satisfies
IsNotSupported().
## func NewNotValid
``` go
func NewNotValid(err error, msg string) error
```
NewNotValid returns an error which wraps err and satisfies IsNotValid().
## func NewUnauthorized
``` go
func NewUnauthorized(err error, msg string) error
```
NewUnauthorized returns an error which wraps err and satisfies
IsUnauthorized().
## func NewUserNotFound
``` go
func NewUserNotFound(err error, msg string) error
```
NewUserNotFound returns an error which wraps err and satisfies
IsUserNotFound().
## func NotAssignedf
``` go
func NotAssignedf(format string, args ...interface{}) error
```
NotAssignedf returns an error which satisfies IsNotAssigned().
## func NotFoundf
``` go
func NotFoundf(format string, args ...interface{}) error
```
NotFoundf returns an error which satisfies IsNotFound().
## func NotImplementedf
``` go
func NotImplementedf(format string, args ...interface{}) error
```
NotImplementedf returns an error which satisfies IsNotImplemented().
## func NotProvisionedf
``` go
func NotProvisionedf(format string, args ...interface{}) error
```
NotProvisionedf returns an error which satisfies IsNotProvisioned().
## func NotSupportedf
``` go
func NotSupportedf(format string, args ...interface{}) error
```
NotSupportedf returns an error which satisfies IsNotSupported().
## func NotValidf
``` go
func NotValidf(format string, args ...interface{}) error
```
NotValidf returns an error which satisfies IsNotValid().
## func Trace
``` go
func Trace(other error) error
```
Trace adds the location of the Trace call to the stack. The Cause of the
resulting error is the same as the error parameter. If the other error is
nil, the result will be nil.
For example:
if err := SomeFunc(); err != nil {
return errors.Trace(err)
}
## func Unauthorizedf
``` go
func Unauthorizedf(format string, args ...interface{}) error
```
Unauthorizedf returns an error which satisfies IsUnauthorized().
## func UserNotFoundf
``` go
func UserNotFoundf(format string, args ...interface{}) error
```
UserNotFoundf returns an error which satisfies IsUserNotFound().
## func Wrap
``` go
func Wrap(other, newDescriptive error) error
```
Wrap changes the Cause of the error. The location of the Wrap call is also
stored in the error stack.
For example:
if err := SomeFunc(); err != nil {
newErr := &packageError{"more context", private_value}
return errors.Wrap(err, newErr)
}
## func Wrapf
``` go
func Wrapf(other, newDescriptive error, format string, args ...interface{}) error
```
Wrapf changes the Cause of the error, and adds an annotation. The location
of the Wrap call is also stored in the error stack.
For example:
if err := SomeFunc(); err != nil {
return errors.Wrapf(err, simpleErrorType, "invalid value %q", value)
}
## type Err
``` go
type Err struct {
// contains filtered or unexported fields
}
```
Err holds a description of an error along with information about
where the error was created.
It may be embedded in custom error types to add extra information that
this errors package can understand.
### func NewErr
``` go
func NewErr(format string, args ...interface{}) Err
```
NewErr is used to return an Err for the purpose of embedding in other
structures. The location is not specified, and needs to be set with a call
to SetLocation.
For example:
type FooError struct {
errors.Err
code int
}
func NewFooError(code int) error {
err := &FooError{errors.NewErr("foo"), code}
err.SetLocation(1)
return err
}
### func NewErrWithCause
``` go
func NewErrWithCause(other error, format string, args ...interface{}) Err
```
NewErrWithCause is used to return an Err with cause by other error for the purpose of embedding in other
structures. The location is not specified, and needs to be set with a call
to SetLocation.
For example:
type FooError struct {
errors.Err
code int
}
func (e *FooError) Annotate(format string, args ...interface{}) error {
err := &FooError{errors.NewErrWithCause(e.Err, format, args...), e.code}
err.SetLocation(1)
return err
})
### func (\*Err) Cause
``` go
func (e *Err) Cause() error
```
The Cause of an error is the most recent error in the error stack that
meets one of these criteria: the original error that was raised; the new
error that was passed into the Wrap function; the most recently masked
error; or nil if the error itself is considered the Cause. Normally this
method is not invoked directly, but instead through the Cause stand alone
function.
### func (\*Err) Error
``` go
func (e *Err) Error() string
```
Error implements error.Error.
### func (\*Err) Format
``` go
func (e *Err) Format(s fmt.State, verb rune)
```
Format implements fmt.Formatter
When printing errors with %+v it also prints the stack trace.
%#v unsurprisingly will print the real underlying type.
### func (\*Err) Location
``` go
func (e *Err) Location() (filename string, line int)
```
Location is the file and line of where the error was most recently
created or annotated.
### func (\*Err) Message
``` go
func (e *Err) Message() string
```
Message returns the message stored with the most recent location. This is
the empty string if the most recent call was Trace, or the message stored
with Annotate or Mask.
### func (\*Err) SetLocation
``` go
func (e *Err) SetLocation(callDepth int)
```
SetLocation records the source location of the error at callDepth stack
frames above the call.
### func (\*Err) StackTrace
``` go
func (e *Err) StackTrace() []string
```
StackTrace returns one string for each location recorded in the stack of
errors. The first value is the originating error, with a line for each
other annotation or tracing of the error.
### func (\*Err) Underlying
``` go
func (e *Err) Underlying() error
```
Underlying returns the previous error in the error stack, if any. A client
should not ever really call this method. It is used to build the error
stack and should not be introspected by client calls. Or more
specifically, clients should not depend on anything but the `Cause` of an
error.
- - -
Generated by [godoc2md](http://godoc.org/github.com/davecheney/godoc2md)
You don't.

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# No Code Style Guide
All no code programs are the same, regardless of use case, any code you write is a liability.
## File Extensions
No code is not stored in files, but if you must, use the `.no` file extension.
```
main.no
```
## Linters
There is only one way to write no code and the `du` command can help you identify any issues.
```
du -h main.no
```
```
0 main.no
```
> The only valid code is no code.
## Code Reviews
The no code community has adopted the following conventions when reviewing code changes:
When the change contains no code additions or modifications:
```
LGTM # Looks Good To Me
```
When the change includes code additions or modifications:
```
CIAL # Code Is A Liability
```
> Change requests that fall into this category should be rejected immediately.

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github.com/juju/loggo git 8232ab8918d91c72af1a9fb94d3edbe31d88b790 2017-06-05T01:46:07Z
github.com/juju/testing git 72703b1e95eb8ce4737fd8a3d8496c6b0be280a6 2018-05-17T13:41:05Z
gopkg.in/check.v1 git 4f90aeace3a26ad7021961c297b22c42160c7b25 2016-01-05T16:49:36Z
gopkg.in/mgo.v2 git f2b6f6c918c452ad107eec89615f074e3bd80e33 2016-08-18T01:52:18Z
gopkg.in/yaml.v2 git 1be3d31502d6eabc0dd7ce5b0daab022e14a5538 2017-07-12T05:45:46Z
1 github.com/juju/loggo git 8232ab8918d91c72af1a9fb94d3edbe31d88b790 2017-06-05T01:46:07Z
2 github.com/juju/testing git 72703b1e95eb8ce4737fd8a3d8496c6b0be280a6 2018-05-17T13:41:05Z
3 gopkg.in/check.v1 git 4f90aeace3a26ad7021961c297b22c42160c7b25 2016-01-05T16:49:36Z
4 gopkg.in/mgo.v2 git f2b6f6c918c452ad107eec89615f074e3bd80e33 2016-08-18T01:52:18Z
5 gopkg.in/yaml.v2 git 1be3d31502d6eabc0dd7ce5b0daab022e14a5538 2017-07-12T05:45:46Z

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// Copyright 2013, 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
/*
Package errors provides an easy way to annotate errors without losing the
original error context.
The exported `New` and `Errorf` functions are designed to replace the
`errors.New` and `fmt.Errorf` functions respectively. The same underlying
error is there, but the package also records the location at which the error
was created.
A primary use case for this library is to add extra context any time an
error is returned from a function.
if err := SomeFunc(); err != nil {
return err
}
This instead becomes:
if err := SomeFunc(); err != nil {
return errors.Trace(err)
}
which just records the file and line number of the Trace call, or
if err := SomeFunc(); err != nil {
return errors.Annotate(err, "more context")
}
which also adds an annotation to the error.
When you want to check to see if an error is of a particular type, a helper
function is normally exported by the package that returned the error, like the
`os` package does. The underlying cause of the error is available using the
`Cause` function.
os.IsNotExist(errors.Cause(err))
The result of the `Error()` call on an annotated error is the annotations joined
with colons, then the result of the `Error()` method for the underlying error
that was the cause.
err := errors.Errorf("original")
err = errors.Annotatef(err, "context")
err = errors.Annotatef(err, "more context")
err.Error() -> "more context: context: original"
Obviously recording the file, line and functions is not very useful if you
cannot get them back out again.
errors.ErrorStack(err)
will return something like:
first error
github.com/juju/errors/annotation_test.go:193:
github.com/juju/errors/annotation_test.go:194: annotation
github.com/juju/errors/annotation_test.go:195:
github.com/juju/errors/annotation_test.go:196: more context
github.com/juju/errors/annotation_test.go:197:
The first error was generated by an external system, so there was no location
associated. The second, fourth, and last lines were generated with Trace calls,
and the other two through Annotate.
Sometimes when responding to an error you want to return a more specific error
for the situation.
if err := FindField(field); err != nil {
return errors.Wrap(err, errors.NotFoundf(field))
}
This returns an error where the complete error stack is still available, and
`errors.Cause()` will return the `NotFound` error.
*/
package errors

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// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package errors
import (
"fmt"
"reflect"
"runtime"
)
// Err holds a description of an error along with information about
// where the error was created.
//
// It may be embedded in custom error types to add extra information that
// this errors package can understand.
type Err struct {
// message holds an annotation of the error.
message string
// cause holds the cause of the error as returned
// by the Cause method.
cause error
// previous holds the previous error in the error stack, if any.
previous error
// file and line hold the source code location where the error was
// created.
file string
line int
}
// NewErr is used to return an Err for the purpose of embedding in other
// structures. The location is not specified, and needs to be set with a call
// to SetLocation.
//
// For example:
// type FooError struct {
// errors.Err
// code int
// }
//
// func NewFooError(code int) error {
// err := &FooError{errors.NewErr("foo"), code}
// err.SetLocation(1)
// return err
// }
func NewErr(format string, args ...interface{}) Err {
return Err{
message: fmt.Sprintf(format, args...),
}
}
// NewErrWithCause is used to return an Err with cause by other error for the purpose of embedding in other
// structures. The location is not specified, and needs to be set with a call
// to SetLocation.
//
// For example:
// type FooError struct {
// errors.Err
// code int
// }
//
// func (e *FooError) Annotate(format string, args ...interface{}) error {
// err := &FooError{errors.NewErrWithCause(e.Err, format, args...), e.code}
// err.SetLocation(1)
// return err
// })
func NewErrWithCause(other error, format string, args ...interface{}) Err {
return Err{
message: fmt.Sprintf(format, args...),
cause: Cause(other),
previous: other,
}
}
// Location is the file and line of where the error was most recently
// created or annotated.
func (e *Err) Location() (filename string, line int) {
return e.file, e.line
}
// Underlying returns the previous error in the error stack, if any. A client
// should not ever really call this method. It is used to build the error
// stack and should not be introspected by client calls. Or more
// specifically, clients should not depend on anything but the `Cause` of an
// error.
func (e *Err) Underlying() error {
return e.previous
}
// Cause returns the most recent error in the error stack that
// meets one of these criteria: the original error that was raised; the new
// error that was passed into the Wrap function; the most recently masked
// error; or nil if the error itself is considered the Cause. Normally this
// method is not invoked directly, but instead through the Cause stand alone
// function.
func (e *Err) Cause() error {
return e.cause
}
// Message returns the message stored with the most recent location. This is
// the empty string if the most recent call was Trace, or the message stored
// with Annotate or Mask.
func (e *Err) Message() string {
return e.message
}
// Error implements error.Error.
func (e *Err) Error() string {
// We want to walk up the stack of errors showing the annotations
// as long as the cause is the same.
err := e.previous
if !sameError(Cause(err), e.cause) && e.cause != nil {
err = e.cause
}
switch {
case err == nil:
return e.message
case e.message == "":
return err.Error()
}
return fmt.Sprintf("%s: %v", e.message, err)
}
// Format implements fmt.Formatter
// When printing errors with %+v it also prints the stack trace.
// %#v unsurprisingly will print the real underlying type.
func (e *Err) Format(s fmt.State, verb rune) {
switch verb {
case 'v':
switch {
case s.Flag('+'):
fmt.Fprintf(s, "%s", ErrorStack(e))
return
case s.Flag('#'):
// avoid infinite recursion by wrapping e into a type
// that doesn't implement Formatter.
fmt.Fprintf(s, "%#v", (*unformatter)(e))
return
}
fallthrough
case 's':
fmt.Fprintf(s, "%s", e.Error())
case 'q':
fmt.Fprintf(s, "%q", e.Error())
default:
fmt.Fprintf(s, "%%!%c(%T=%s)", verb, e, e.Error())
}
}
// helper for Format
type unformatter Err
func (unformatter) Format() { /* break the fmt.Formatter interface */ }
// SetLocation records the source location of the error at callDepth stack
// frames above the call.
func (e *Err) SetLocation(callDepth int) {
_, file, line, _ := runtime.Caller(callDepth + 1)
e.file = trimSourcePath(file)
e.line = line
}
// StackTrace returns one string for each location recorded in the stack of
// errors. The first value is the originating error, with a line for each
// other annotation or tracing of the error.
func (e *Err) StackTrace() []string {
return errorStack(e)
}
// Ideally we'd have a way to check identity, but deep equals will do.
func sameError(e1, e2 error) bool {
return reflect.DeepEqual(e1, e2)
}

333
vendor/github.com/juju/errors/errortypes.go generated vendored
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@ -1,333 +0,0 @@
// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package errors
import (
"fmt"
)
// wrap is a helper to construct an *wrapper.
func wrap(err error, format, suffix string, args ...interface{}) Err {
newErr := Err{
message: fmt.Sprintf(format+suffix, args...),
previous: err,
}
newErr.SetLocation(2)
return newErr
}
// timeout represents an error on timeout.
type timeout struct {
Err
}
// Timeoutf returns an error which satisfies IsTimeout().
func Timeoutf(format string, args ...interface{}) error {
return &timeout{wrap(nil, format, " timeout", args...)}
}
// NewTimeout returns an error which wraps err that satisfies
// IsTimeout().
func NewTimeout(err error, msg string) error {
return &timeout{wrap(err, msg, "")}
}
// IsTimeout reports whether err was created with Timeoutf() or
// NewTimeout().
func IsTimeout(err error) bool {
err = Cause(err)
_, ok := err.(*timeout)
return ok
}
// notFound represents an error when something has not been found.
type notFound struct {
Err
}
// NotFoundf returns an error which satisfies IsNotFound().
func NotFoundf(format string, args ...interface{}) error {
return &notFound{wrap(nil, format, " not found", args...)}
}
// NewNotFound returns an error which wraps err that satisfies
// IsNotFound().
func NewNotFound(err error, msg string) error {
return &notFound{wrap(err, msg, "")}
}
// IsNotFound reports whether err was created with NotFoundf() or
// NewNotFound().
func IsNotFound(err error) bool {
err = Cause(err)
_, ok := err.(*notFound)
return ok
}
// userNotFound represents an error when an inexistent user is looked up.
type userNotFound struct {
Err
}
// UserNotFoundf returns an error which satisfies IsUserNotFound().
func UserNotFoundf(format string, args ...interface{}) error {
return &userNotFound{wrap(nil, format, " user not found", args...)}
}
// NewUserNotFound returns an error which wraps err and satisfies
// IsUserNotFound().
func NewUserNotFound(err error, msg string) error {
return &userNotFound{wrap(err, msg, "")}
}
// IsUserNotFound reports whether err was created with UserNotFoundf() or
// NewUserNotFound().
func IsUserNotFound(err error) bool {
err = Cause(err)
_, ok := err.(*userNotFound)
return ok
}
// unauthorized represents an error when an operation is unauthorized.
type unauthorized struct {
Err
}
// Unauthorizedf returns an error which satisfies IsUnauthorized().
func Unauthorizedf(format string, args ...interface{}) error {
return &unauthorized{wrap(nil, format, "", args...)}
}
// NewUnauthorized returns an error which wraps err and satisfies
// IsUnauthorized().
func NewUnauthorized(err error, msg string) error {
return &unauthorized{wrap(err, msg, "")}
}
// IsUnauthorized reports whether err was created with Unauthorizedf() or
// NewUnauthorized().
func IsUnauthorized(err error) bool {
err = Cause(err)
_, ok := err.(*unauthorized)
return ok
}
// notImplemented represents an error when something is not
// implemented.
type notImplemented struct {
Err
}
// NotImplementedf returns an error which satisfies IsNotImplemented().
func NotImplementedf(format string, args ...interface{}) error {
return &notImplemented{wrap(nil, format, " not implemented", args...)}
}
// NewNotImplemented returns an error which wraps err and satisfies
// IsNotImplemented().
func NewNotImplemented(err error, msg string) error {
return &notImplemented{wrap(err, msg, "")}
}
// IsNotImplemented reports whether err was created with
// NotImplementedf() or NewNotImplemented().
func IsNotImplemented(err error) bool {
err = Cause(err)
_, ok := err.(*notImplemented)
return ok
}
// alreadyExists represents and error when something already exists.
type alreadyExists struct {
Err
}
// AlreadyExistsf returns an error which satisfies IsAlreadyExists().
func AlreadyExistsf(format string, args ...interface{}) error {
return &alreadyExists{wrap(nil, format, " already exists", args...)}
}
// NewAlreadyExists returns an error which wraps err and satisfies
// IsAlreadyExists().
func NewAlreadyExists(err error, msg string) error {
return &alreadyExists{wrap(err, msg, "")}
}
// IsAlreadyExists reports whether the error was created with
// AlreadyExistsf() or NewAlreadyExists().
func IsAlreadyExists(err error) bool {
err = Cause(err)
_, ok := err.(*alreadyExists)
return ok
}
// notSupported represents an error when something is not supported.
type notSupported struct {
Err
}
// NotSupportedf returns an error which satisfies IsNotSupported().
func NotSupportedf(format string, args ...interface{}) error {
return &notSupported{wrap(nil, format, " not supported", args...)}
}
// NewNotSupported returns an error which wraps err and satisfies
// IsNotSupported().
func NewNotSupported(err error, msg string) error {
return &notSupported{wrap(err, msg, "")}
}
// IsNotSupported reports whether the error was created with
// NotSupportedf() or NewNotSupported().
func IsNotSupported(err error) bool {
err = Cause(err)
_, ok := err.(*notSupported)
return ok
}
// notValid represents an error when something is not valid.
type notValid struct {
Err
}
// NotValidf returns an error which satisfies IsNotValid().
func NotValidf(format string, args ...interface{}) error {
return &notValid{wrap(nil, format, " not valid", args...)}
}
// NewNotValid returns an error which wraps err and satisfies IsNotValid().
func NewNotValid(err error, msg string) error {
return &notValid{wrap(err, msg, "")}
}
// IsNotValid reports whether the error was created with NotValidf() or
// NewNotValid().
func IsNotValid(err error) bool {
err = Cause(err)
_, ok := err.(*notValid)
return ok
}
// notProvisioned represents an error when something is not yet provisioned.
type notProvisioned struct {
Err
}
// NotProvisionedf returns an error which satisfies IsNotProvisioned().
func NotProvisionedf(format string, args ...interface{}) error {
return &notProvisioned{wrap(nil, format, " not provisioned", args...)}
}
// NewNotProvisioned returns an error which wraps err that satisfies
// IsNotProvisioned().
func NewNotProvisioned(err error, msg string) error {
return &notProvisioned{wrap(err, msg, "")}
}
// IsNotProvisioned reports whether err was created with NotProvisionedf() or
// NewNotProvisioned().
func IsNotProvisioned(err error) bool {
err = Cause(err)
_, ok := err.(*notProvisioned)
return ok
}
// notAssigned represents an error when something is not yet assigned to
// something else.
type notAssigned struct {
Err
}
// NotAssignedf returns an error which satisfies IsNotAssigned().
func NotAssignedf(format string, args ...interface{}) error {
return &notAssigned{wrap(nil, format, " not assigned", args...)}
}
// NewNotAssigned returns an error which wraps err that satisfies
// IsNotAssigned().
func NewNotAssigned(err error, msg string) error {
return &notAssigned{wrap(err, msg, "")}
}
// IsNotAssigned reports whether err was created with NotAssignedf() or
// NewNotAssigned().
func IsNotAssigned(err error) bool {
err = Cause(err)
_, ok := err.(*notAssigned)
return ok
}
// badRequest represents an error when a request has bad parameters.
type badRequest struct {
Err
}
// BadRequestf returns an error which satisfies IsBadRequest().
func BadRequestf(format string, args ...interface{}) error {
return &badRequest{wrap(nil, format, "", args...)}
}
// NewBadRequest returns an error which wraps err that satisfies
// IsBadRequest().
func NewBadRequest(err error, msg string) error {
return &badRequest{wrap(err, msg, "")}
}
// IsBadRequest reports whether err was created with BadRequestf() or
// NewBadRequest().
func IsBadRequest(err error) bool {
err = Cause(err)
_, ok := err.(*badRequest)
return ok
}
// methodNotAllowed represents an error when an HTTP request
// is made with an inappropriate method.
type methodNotAllowed struct {
Err
}
// MethodNotAllowedf returns an error which satisfies IsMethodNotAllowed().
func MethodNotAllowedf(format string, args ...interface{}) error {
return &methodNotAllowed{wrap(nil, format, "", args...)}
}
// NewMethodNotAllowed returns an error which wraps err that satisfies
// IsMethodNotAllowed().
func NewMethodNotAllowed(err error, msg string) error {
return &methodNotAllowed{wrap(err, msg, "")}
}
// IsMethodNotAllowed reports whether err was created with MethodNotAllowedf() or
// NewMethodNotAllowed().
func IsMethodNotAllowed(err error) bool {
err = Cause(err)
_, ok := err.(*methodNotAllowed)
return ok
}
// forbidden represents an error when a request cannot be completed because of
// missing privileges
type forbidden struct {
Err
}
// Forbiddenf returns an error which satistifes IsForbidden()
func Forbiddenf(format string, args ...interface{}) error {
return &forbidden{wrap(nil, format, "", args...)}
}
// NewForbidden returns an error which wraps err that satisfies
// IsForbidden().
func NewForbidden(err error, msg string) error {
return &forbidden{wrap(err, msg, "")}
}
// IsForbidden reports whether err was created with Forbiddenf() or
// NewForbidden().
func IsForbidden(err error) bool {
err = Cause(err)
_, ok := err.(*forbidden)
return ok
}

330
vendor/github.com/juju/errors/functions.go generated vendored
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@ -1,330 +0,0 @@
// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package errors
import (
"fmt"
"strings"
)
// New is a drop in replacement for the standard library errors module that records
// the location that the error is created.
//
// For example:
// return errors.New("validation failed")
//
func New(message string) error {
err := &Err{message: message}
err.SetLocation(1)
return err
}
// Errorf creates a new annotated error and records the location that the
// error is created. This should be a drop in replacement for fmt.Errorf.
//
// For example:
// return errors.Errorf("validation failed: %s", message)
//
func Errorf(format string, args ...interface{}) error {
err := &Err{message: fmt.Sprintf(format, args...)}
err.SetLocation(1)
return err
}
// Trace adds the location of the Trace call to the stack. The Cause of the
// resulting error is the same as the error parameter. If the other error is
// nil, the result will be nil.
//
// For example:
// if err := SomeFunc(); err != nil {
// return errors.Trace(err)
// }
//
func Trace(other error) error {
if other == nil {
return nil
}
err := &Err{previous: other, cause: Cause(other)}
err.SetLocation(1)
return err
}
// Annotate is used to add extra context to an existing error. The location of
// the Annotate call is recorded with the annotations. The file, line and
// function are also recorded.
//
// For example:
// if err := SomeFunc(); err != nil {
// return errors.Annotate(err, "failed to frombulate")
// }
//
func Annotate(other error, message string) error {
if other == nil {
return nil
}
err := &Err{
previous: other,
cause: Cause(other),
message: message,
}
err.SetLocation(1)
return err
}
// Annotatef is used to add extra context to an existing error. The location of
// the Annotate call is recorded with the annotations. The file, line and
// function are also recorded.
//
// For example:
// if err := SomeFunc(); err != nil {
// return errors.Annotatef(err, "failed to frombulate the %s", arg)
// }
//
func Annotatef(other error, format string, args ...interface{}) error {
if other == nil {
return nil
}
err := &Err{
previous: other,
cause: Cause(other),
message: fmt.Sprintf(format, args...),
}
err.SetLocation(1)
return err
}
// DeferredAnnotatef annotates the given error (when it is not nil) with the given
// format string and arguments (like fmt.Sprintf). If *err is nil, DeferredAnnotatef
// does nothing. This method is used in a defer statement in order to annotate any
// resulting error with the same message.
//
// For example:
//
// defer DeferredAnnotatef(&err, "failed to frombulate the %s", arg)
//
func DeferredAnnotatef(err *error, format string, args ...interface{}) {
if *err == nil {
return
}
newErr := &Err{
message: fmt.Sprintf(format, args...),
cause: Cause(*err),
previous: *err,
}
newErr.SetLocation(1)
*err = newErr
}
// Wrap changes the Cause of the error. The location of the Wrap call is also
// stored in the error stack.
//
// For example:
// if err := SomeFunc(); err != nil {
// newErr := &packageError{"more context", private_value}
// return errors.Wrap(err, newErr)
// }
//
func Wrap(other, newDescriptive error) error {
err := &Err{
previous: other,
cause: newDescriptive,
}
err.SetLocation(1)
return err
}
// Wrapf changes the Cause of the error, and adds an annotation. The location
// of the Wrap call is also stored in the error stack.
//
// For example:
// if err := SomeFunc(); err != nil {
// return errors.Wrapf(err, simpleErrorType, "invalid value %q", value)
// }
//
func Wrapf(other, newDescriptive error, format string, args ...interface{}) error {
err := &Err{
message: fmt.Sprintf(format, args...),
previous: other,
cause: newDescriptive,
}
err.SetLocation(1)
return err
}
// Maskf masks the given error with the given format string and arguments (like
// fmt.Sprintf), returning a new error that maintains the error stack, but
// hides the underlying error type. The error string still contains the full
// annotations. If you want to hide the annotations, call Wrap.
func Maskf(other error, format string, args ...interface{}) error {
if other == nil {
return nil
}
err := &Err{
message: fmt.Sprintf(format, args...),
previous: other,
}
err.SetLocation(1)
return err
}
// Mask hides the underlying error type, and records the location of the masking.
func Mask(other error) error {
if other == nil {
return nil
}
err := &Err{
previous: other,
}
err.SetLocation(1)
return err
}
// Cause returns the cause of the given error. This will be either the
// original error, or the result of a Wrap or Mask call.
//
// Cause is the usual way to diagnose errors that may have been wrapped by
// the other errors functions.
func Cause(err error) error {
var diag error
if err, ok := err.(causer); ok {
diag = err.Cause()
}
if diag != nil {
return diag
}
return err
}
type causer interface {
Cause() error
}
type wrapper interface {
// Message returns the top level error message,
// not including the message from the Previous
// error.
Message() string
// Underlying returns the Previous error, or nil
// if there is none.
Underlying() error
}
type locationer interface {
Location() (string, int)
}
var (
_ wrapper = (*Err)(nil)
_ locationer = (*Err)(nil)
_ causer = (*Err)(nil)
)
// Details returns information about the stack of errors wrapped by err, in
// the format:
//
// [{filename:99: error one} {otherfile:55: cause of error one}]
//
// This is a terse alternative to ErrorStack as it returns a single line.
func Details(err error) string {
if err == nil {
return "[]"
}
var s []byte
s = append(s, '[')
for {
s = append(s, '{')
if err, ok := err.(locationer); ok {
file, line := err.Location()
if file != "" {
s = append(s, fmt.Sprintf("%s:%d", file, line)...)
s = append(s, ": "...)
}
}
if cerr, ok := err.(wrapper); ok {
s = append(s, cerr.Message()...)
err = cerr.Underlying()
} else {
s = append(s, err.Error()...)
err = nil
}
s = append(s, '}')
if err == nil {
break
}
s = append(s, ' ')
}
s = append(s, ']')
return string(s)
}
// ErrorStack returns a string representation of the annotated error. If the
// error passed as the parameter is not an annotated error, the result is
// simply the result of the Error() method on that error.
//
// If the error is an annotated error, a multi-line string is returned where
// each line represents one entry in the annotation stack. The full filename
// from the call stack is used in the output.
//
// first error
// github.com/juju/errors/annotation_test.go:193:
// github.com/juju/errors/annotation_test.go:194: annotation
// github.com/juju/errors/annotation_test.go:195:
// github.com/juju/errors/annotation_test.go:196: more context
// github.com/juju/errors/annotation_test.go:197:
func ErrorStack(err error) string {
return strings.Join(errorStack(err), "\n")
}
func errorStack(err error) []string {
if err == nil {
return nil
}
// We want the first error first
var lines []string
for {
var buff []byte
if err, ok := err.(locationer); ok {
file, line := err.Location()
// Strip off the leading GOPATH/src path elements.
file = trimSourcePath(file)
if file != "" {
buff = append(buff, fmt.Sprintf("%s:%d", file, line)...)
buff = append(buff, ": "...)
}
}
if cerr, ok := err.(wrapper); ok {
message := cerr.Message()
buff = append(buff, message...)
// If there is a cause for this error, and it is different to the cause
// of the underlying error, then output the error string in the stack trace.
var cause error
if err1, ok := err.(causer); ok {
cause = err1.Cause()
}
err = cerr.Underlying()
if cause != nil && !sameError(Cause(err), cause) {
if message != "" {
buff = append(buff, ": "...)
}
buff = append(buff, cause.Error()...)
}
} else {
buff = append(buff, err.Error()...)
err = nil
}
lines = append(lines, string(buff))
if err == nil {
break
}
}
// reverse the lines to get the original error, which was at the end of
// the list, back to the start.
var result []string
for i := len(lines); i > 0; i-- {
result = append(result, lines[i-1])
}
return result
}

3
vendor/github.com/juju/errors/go.mod generated vendored Normal file
View File

@ -0,0 +1,3 @@
module github.com/rancher/nocode
go 1.14

1
vendor/github.com/juju/errors/no.go generated vendored Normal file
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@ -0,0 +1 @@
package nocode

32
vendor/github.com/juju/errors/path.go generated vendored
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@ -1,32 +0,0 @@
// Copyright 2013, 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package errors
import (
"go/build"
"os"
"path/filepath"
"strings"
"sync/atomic"
)
var trimValue atomic.Value
var trimDefault = filepath.Join(build.Default.GOPATH, "src") + string(os.PathSeparator)
func trimSourcePath(filename string) string {
prefix := trimDefault
if v := trimValue.Load(); v != nil {
prefix = v.(string)
}
return strings.TrimPrefix(filename, prefix)
}
func SetSourceTrimPrefix(s string) string {
previous := trimDefault
if v := trimValue.Load(); v != nil {
previous = v.(string)
}
trimValue.Store(s)
return previous
}

2
vendor/modules.txt vendored
View File

@ -607,7 +607,7 @@ github.com/jmespath/go-jmespath
github.com/jonboulle/clockwork
# github.com/json-iterator/go v1.1.8
github.com/json-iterator/go
# github.com/juju/errors v0.0.0-20190806202954-0232dcc7464d
# github.com/juju/errors v0.0.0-20180806074554-22422dad46e1 => github.com/rancher/nocode v0.0.0-20200630202308-cb097102c09f
github.com/juju/errors
# github.com/karrick/godirwalk v1.7.5
github.com/karrick/godirwalk