diff options
Diffstat (limited to 'vendor/github.com/googleapis/gnostic/compiler')
7 files changed, 588 insertions, 0 deletions
diff --git a/vendor/github.com/googleapis/gnostic/compiler/README.md b/vendor/github.com/googleapis/gnostic/compiler/README.md new file mode 100644 index 000000000..848b16c69 --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/README.md @@ -0,0 +1,3 @@ +# Compiler support code + +This directory contains compiler support code used by Gnostic and Gnostic extensions.
\ No newline at end of file diff --git a/vendor/github.com/googleapis/gnostic/compiler/context.go b/vendor/github.com/googleapis/gnostic/compiler/context.go new file mode 100644 index 000000000..a64c1b75d --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/context.go @@ -0,0 +1,43 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package compiler + +// Context contains state of the compiler as it traverses a document. +type Context struct { + Parent *Context + Name string + ExtensionHandlers *[]ExtensionHandler +} + +// NewContextWithExtensions returns a new object representing the compiler state +func NewContextWithExtensions(name string, parent *Context, extensionHandlers *[]ExtensionHandler) *Context { + return &Context{Name: name, Parent: parent, ExtensionHandlers: extensionHandlers} +} + +// NewContext returns a new object representing the compiler state +func NewContext(name string, parent *Context) *Context { + if parent != nil { + return &Context{Name: name, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers} + } + return &Context{Name: name, Parent: parent, ExtensionHandlers: nil} +} + +// Description returns a text description of the compiler state +func (context *Context) Description() string { + if context.Parent != nil { + return context.Parent.Description() + "." + context.Name + } + return context.Name +} diff --git a/vendor/github.com/googleapis/gnostic/compiler/error.go b/vendor/github.com/googleapis/gnostic/compiler/error.go new file mode 100644 index 000000000..d8672c100 --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/error.go @@ -0,0 +1,61 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package compiler + +// Error represents compiler errors and their location in the document. +type Error struct { + Context *Context + Message string +} + +// NewError creates an Error. +func NewError(context *Context, message string) *Error { + return &Error{Context: context, Message: message} +} + +// Error returns the string value of an Error. +func (err *Error) Error() string { + if err.Context == nil { + return "ERROR " + err.Message + } + return "ERROR " + err.Context.Description() + " " + err.Message +} + +// ErrorGroup is a container for groups of Error values. +type ErrorGroup struct { + Errors []error +} + +// NewErrorGroupOrNil returns a new ErrorGroup for a slice of errors or nil if the slice is empty. +func NewErrorGroupOrNil(errors []error) error { + if len(errors) == 0 { + return nil + } else if len(errors) == 1 { + return errors[0] + } else { + return &ErrorGroup{Errors: errors} + } +} + +func (group *ErrorGroup) Error() string { + result := "" + for i, err := range group.Errors { + if i > 0 { + result += "\n" + } + result += err.Error() + } + return result +} diff --git a/vendor/github.com/googleapis/gnostic/compiler/extension-handler.go b/vendor/github.com/googleapis/gnostic/compiler/extension-handler.go new file mode 100644 index 000000000..1f85b650e --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/extension-handler.go @@ -0,0 +1,101 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package compiler + +import ( + "bytes" + "fmt" + "os/exec" + + "strings" + + "errors" + + "github.com/golang/protobuf/proto" + "github.com/golang/protobuf/ptypes/any" + ext_plugin "github.com/googleapis/gnostic/extensions" + yaml "gopkg.in/yaml.v2" +) + +// ExtensionHandler describes a binary that is called by the compiler to handle specification extensions. +type ExtensionHandler struct { + Name string +} + +// HandleExtension calls a binary extension handler. +func HandleExtension(context *Context, in interface{}, extensionName string) (bool, *any.Any, error) { + handled := false + var errFromPlugin error + var outFromPlugin *any.Any + + if context != nil && context.ExtensionHandlers != nil && len(*(context.ExtensionHandlers)) != 0 { + for _, customAnyProtoGenerator := range *(context.ExtensionHandlers) { + outFromPlugin, errFromPlugin = customAnyProtoGenerator.handle(in, extensionName) + if outFromPlugin == nil { + continue + } else { + handled = true + break + } + } + } + return handled, outFromPlugin, errFromPlugin +} + +func (extensionHandlers *ExtensionHandler) handle(in interface{}, extensionName string) (*any.Any, error) { + if extensionHandlers.Name != "" { + binary, _ := yaml.Marshal(in) + + request := &ext_plugin.ExtensionHandlerRequest{} + + version := &ext_plugin.Version{} + version.Major = 0 + version.Minor = 1 + version.Patch = 0 + request.CompilerVersion = version + + request.Wrapper = &ext_plugin.Wrapper{} + + request.Wrapper.Version = "v2" + request.Wrapper.Yaml = string(binary) + request.Wrapper.ExtensionName = extensionName + + requestBytes, _ := proto.Marshal(request) + cmd := exec.Command(extensionHandlers.Name) + cmd.Stdin = bytes.NewReader(requestBytes) + output, err := cmd.Output() + + if err != nil { + fmt.Printf("Error: %+v\n", err) + return nil, err + } + response := &ext_plugin.ExtensionHandlerResponse{} + err = proto.Unmarshal(output, response) + if err != nil { + fmt.Printf("Error: %+v\n", err) + fmt.Printf("%s\n", string(output)) + return nil, err + } + if !response.Handled { + return nil, nil + } + if len(response.Error) != 0 { + message := fmt.Sprintf("Errors when parsing: %+v for field %s by vendor extension handler %s. Details %+v", in, extensionName, extensionHandlers.Name, strings.Join(response.Error, ",")) + return nil, errors.New(message) + } + return response.Value, nil + } + return nil, nil +} diff --git a/vendor/github.com/googleapis/gnostic/compiler/helpers.go b/vendor/github.com/googleapis/gnostic/compiler/helpers.go new file mode 100644 index 000000000..76df635ff --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/helpers.go @@ -0,0 +1,197 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package compiler + +import ( + "fmt" + "gopkg.in/yaml.v2" + "regexp" + "sort" + "strconv" +) + +// compiler helper functions, usually called from generated code + +// UnpackMap gets a yaml.MapSlice if possible. +func UnpackMap(in interface{}) (yaml.MapSlice, bool) { + m, ok := in.(yaml.MapSlice) + if ok { + return m, true + } + // do we have an empty array? + a, ok := in.([]interface{}) + if ok && len(a) == 0 { + // if so, return an empty map + return yaml.MapSlice{}, true + } + return nil, false +} + +// SortedKeysForMap returns the sorted keys of a yaml.MapSlice. +func SortedKeysForMap(m yaml.MapSlice) []string { + keys := make([]string, 0) + for _, item := range m { + keys = append(keys, item.Key.(string)) + } + sort.Strings(keys) + return keys +} + +// MapHasKey returns true if a yaml.MapSlice contains a specified key. +func MapHasKey(m yaml.MapSlice, key string) bool { + for _, item := range m { + itemKey, ok := item.Key.(string) + if ok && key == itemKey { + return true + } + } + return false +} + +// MapValueForKey gets the value of a map value for a specified key. +func MapValueForKey(m yaml.MapSlice, key string) interface{} { + for _, item := range m { + itemKey, ok := item.Key.(string) + if ok && key == itemKey { + return item.Value + } + } + return nil +} + +// ConvertInterfaceArrayToStringArray converts an array of interfaces to an array of strings, if possible. +func ConvertInterfaceArrayToStringArray(interfaceArray []interface{}) []string { + stringArray := make([]string, 0) + for _, item := range interfaceArray { + v, ok := item.(string) + if ok { + stringArray = append(stringArray, v) + } + } + return stringArray +} + +// MissingKeysInMap identifies which keys from a list of required keys are not in a map. +func MissingKeysInMap(m yaml.MapSlice, requiredKeys []string) []string { + missingKeys := make([]string, 0) + for _, k := range requiredKeys { + if !MapHasKey(m, k) { + missingKeys = append(missingKeys, k) + } + } + return missingKeys +} + +// InvalidKeysInMap returns keys in a map that don't match a list of allowed keys and patterns. +func InvalidKeysInMap(m yaml.MapSlice, allowedKeys []string, allowedPatterns []*regexp.Regexp) []string { + invalidKeys := make([]string, 0) + for _, item := range m { + itemKey, ok := item.Key.(string) + if ok { + key := itemKey + found := false + // does the key match an allowed key? + for _, allowedKey := range allowedKeys { + if key == allowedKey { + found = true + break + } + } + if !found { + // does the key match an allowed pattern? + for _, allowedPattern := range allowedPatterns { + if allowedPattern.MatchString(key) { + found = true + break + } + } + if !found { + invalidKeys = append(invalidKeys, key) + } + } + } + } + return invalidKeys +} + +// DescribeMap describes a map (for debugging purposes). +func DescribeMap(in interface{}, indent string) string { + description := "" + m, ok := in.(map[string]interface{}) + if ok { + keys := make([]string, 0) + for k := range m { + keys = append(keys, k) + } + sort.Strings(keys) + for _, k := range keys { + v := m[k] + description += fmt.Sprintf("%s%s:\n", indent, k) + description += DescribeMap(v, indent+" ") + } + return description + } + a, ok := in.([]interface{}) + if ok { + for i, v := range a { + description += fmt.Sprintf("%s%d:\n", indent, i) + description += DescribeMap(v, indent+" ") + } + return description + } + description += fmt.Sprintf("%s%+v\n", indent, in) + return description +} + +// PluralProperties returns the string "properties" pluralized. +func PluralProperties(count int) string { + if count == 1 { + return "property" + } + return "properties" +} + +// StringArrayContainsValue returns true if a string array contains a specified value. +func StringArrayContainsValue(array []string, value string) bool { + for _, item := range array { + if item == value { + return true + } + } + return false +} + +// StringArrayContainsValues returns true if a string array contains all of a list of specified values. +func StringArrayContainsValues(array []string, values []string) bool { + for _, value := range values { + if !StringArrayContainsValue(array, value) { + return false + } + } + return true +} + +// StringValue returns the string value of an item. +func StringValue(item interface{}) (value string, ok bool) { + value, ok = item.(string) + if ok { + return value, ok + } + intValue, ok := item.(int) + if ok { + return strconv.Itoa(intValue), true + } + return "", false +} diff --git a/vendor/github.com/googleapis/gnostic/compiler/main.go b/vendor/github.com/googleapis/gnostic/compiler/main.go new file mode 100644 index 000000000..9713a21cc --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/main.go @@ -0,0 +1,16 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package compiler provides support functions to generated compiler code. +package compiler diff --git a/vendor/github.com/googleapis/gnostic/compiler/reader.go b/vendor/github.com/googleapis/gnostic/compiler/reader.go new file mode 100644 index 000000000..604a46a6a --- /dev/null +++ b/vendor/github.com/googleapis/gnostic/compiler/reader.go @@ -0,0 +1,167 @@ +// Copyright 2017 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package compiler + +import ( + "fmt" + "gopkg.in/yaml.v2" + "io/ioutil" + "log" + "net/http" + "net/url" + "path/filepath" + "strings" +) + +var fileCache map[string][]byte +var infoCache map[string]interface{} +var count int64 + +var verboseReader = false + +func initializeFileCache() { + if fileCache == nil { + fileCache = make(map[string][]byte, 0) + } +} + +func initializeInfoCache() { + if infoCache == nil { + infoCache = make(map[string]interface{}, 0) + } +} + +// FetchFile gets a specified file from the local filesystem or a remote location. +func FetchFile(fileurl string) ([]byte, error) { + initializeFileCache() + bytes, ok := fileCache[fileurl] + if ok { + if verboseReader { + log.Printf("Cache hit %s", fileurl) + } + return bytes, nil + } + log.Printf("Fetching %s", fileurl) + response, err := http.Get(fileurl) + if err != nil { + return nil, err + } + defer response.Body.Close() + bytes, err = ioutil.ReadAll(response.Body) + if err == nil { + fileCache[fileurl] = bytes + } + return bytes, err +} + +// ReadBytesForFile reads the bytes of a file. +func ReadBytesForFile(filename string) ([]byte, error) { + // is the filename a url? + fileurl, _ := url.Parse(filename) + if fileurl.Scheme != "" { + // yes, fetch it + bytes, err := FetchFile(filename) + if err != nil { + return nil, err + } + return bytes, nil + } + // no, it's a local filename + bytes, err := ioutil.ReadFile(filename) + if err != nil { + return nil, err + } + return bytes, nil +} + +// ReadInfoFromBytes unmarshals a file as a yaml.MapSlice. +func ReadInfoFromBytes(filename string, bytes []byte) (interface{}, error) { + initializeInfoCache() + cachedInfo, ok := infoCache[filename] + if ok { + if verboseReader { + log.Printf("Cache hit info for file %s", filename) + } + return cachedInfo, nil + } + if verboseReader { + log.Printf("Reading info for file %s", filename) + } + var info yaml.MapSlice + err := yaml.Unmarshal(bytes, &info) + if err != nil { + return nil, err + } + infoCache[filename] = info + return info, nil +} + +// ReadInfoForRef reads a file and return the fragment needed to resolve a $ref. +func ReadInfoForRef(basefile string, ref string) (interface{}, error) { + initializeInfoCache() + { + info, ok := infoCache[ref] + if ok { + if verboseReader { + log.Printf("Cache hit for ref %s#%s", basefile, ref) + } + return info, nil + } + } + if verboseReader { + log.Printf("Reading info for ref %s#%s", basefile, ref) + } + count = count + 1 + basedir, _ := filepath.Split(basefile) + parts := strings.Split(ref, "#") + var filename string + if parts[0] != "" { + filename = basedir + parts[0] + } else { + filename = basefile + } + bytes, err := ReadBytesForFile(filename) + if err != nil { + return nil, err + } + info, err := ReadInfoFromBytes(filename, bytes) + if err != nil { + log.Printf("File error: %v\n", err) + } else { + if len(parts) > 1 { + path := strings.Split(parts[1], "/") + for i, key := range path { + if i > 0 { + m, ok := info.(yaml.MapSlice) + if ok { + found := false + for _, section := range m { + if section.Key == key { + info = section.Value + found = true + } + } + if !found { + infoCache[ref] = nil + return nil, NewError(nil, fmt.Sprintf("could not resolve %s", ref)) + } + } + } + } + } + } + infoCache[ref] = info + return info, nil +} |