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proto.go
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proto.go
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package instance
import (
"github.com/cirruslabs/cirrus-cli/pkg/parser/boolevator"
"github.com/cirruslabs/cirrus-cli/pkg/parser/instance/resources"
"github.com/cirruslabs/cirrus-cli/pkg/parser/nameable"
"github.com/cirruslabs/cirrus-cli/pkg/parser/node"
"github.com/cirruslabs/cirrus-cli/pkg/parser/parseable"
"github.com/cirruslabs/cirrus-cli/pkg/parser/schema"
jsschema "github.com/lestrrat-go/jsschema"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/types/dynamicpb"
"google.golang.org/protobuf/types/known/anypb"
"sort"
"strconv"
"strings"
)
type ProtoInstance struct {
proto *dynamicpb.Message
parseable.DefaultParser
}
//nolint:gocognit,gocyclo,nestif // it's a parser, there is a lot of boilerplate
func NewProtoParser(
desc protoreflect.MessageDescriptor,
mergedEnv map[string]string,
boolevator *boolevator.Boolevator,
) *ProtoInstance {
instance := &ProtoInstance{
proto: dynamicpb.NewMessage(desc),
}
fields := desc.Fields()
for i := 0; i < fields.Len(); i++ {
field := fields.Get(i)
fieldName := string(field.Name())
// Empty for now
fieldDescription := ""
switch field.Kind() {
case protoreflect.MessageKind:
var messageSchema *jsschema.Schema
switch {
case field.IsMap():
messageSchema = schema.Map(fieldDescription)
case field.IsList():
if fieldName == "additional_containers" {
messageSchema = schema.ArrayOf(NewAdditionalContainer(nil, nil).Schema())
} else {
messageSchema = schema.ArrayOf(NewProtoParser(field.Message(), nil, nil).Schema())
}
default:
messageSchema = NewProtoParser(field.Message(), nil, nil).Schema()
}
instance.OptionalField(nameable.NewSimpleNameable(fieldName), messageSchema, func(node *node.Node) error {
switch {
case field.IsMap():
fieldInstance := instance.proto.NewField(field)
mappingRetriever := node.GetStringMapping
if field.Name() == "docker_arguments" {
mappingRetriever = node.GetMapOrListOfMaps
}
mapping, err := mappingRetriever()
if err != nil {
return err
}
var keys []string
for key := range mapping {
keys = append(keys, key)
}
// determenistic order
sort.Strings(keys)
for _, key := range keys {
fieldInstance.Map().Set(
protoreflect.ValueOfString(key).MapKey(),
protoreflect.ValueOfString(mapping[key]),
)
}
instance.proto.Set(field, fieldInstance)
return nil
case field.IsList():
fieldInstance := instance.proto.NewField(field)
for _, child := range node.Children {
var err error
var parsedChild *dynamicpb.Message
// a little bit of magic to support port forwarding via `port` field instead of two fields
if fieldName == "additional_containers" {
childParser := NewAdditionalContainer(mergedEnv, boolevator)
additionalContainer, err := childParser.Parse(child)
if err != nil {
return err
}
additionalContainerBytes, err := proto.Marshal(additionalContainer)
if err != nil {
return err
}
parsedChild = dynamicpb.NewMessage(field.Message())
//nolint:ineffassign,staticcheck
err = proto.Unmarshal(additionalContainerBytes, parsedChild)
} else {
childParser := NewProtoParser(field.Message(), mergedEnv, boolevator)
parsedChild, err = childParser.Parse(child)
}
if err != nil {
return err
}
fieldInstance.List().Append(protoreflect.ValueOfMessage(parsedChild))
}
instance.proto.Set(field, fieldInstance)
return nil
default:
childParser := NewProtoParser(field.Message(), mergedEnv, boolevator)
parserChild, err := childParser.Parse(node)
if err != nil {
return err
}
instance.proto.Set(field, protoreflect.ValueOfMessage(parserChild))
return nil
}
})
case protoreflect.EnumKind:
var enumItems []interface{}
for i := 0; i < field.Enum().Values().Len(); i++ {
name := string(field.Enum().Values().Get(i).Name())
enumItems = append(enumItems, strings.ToLower(name))
}
enumSchema := schema.Enum(enumItems, fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), enumSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
enumValueDescriptor := field.Enum().Values().ByName(protoreflect.Name(strings.ToUpper(value)))
instance.proto.Set(field, protoreflect.ValueOfEnum(enumValueDescriptor.Number()))
return nil
})
case protoreflect.StringKind:
if field.Cardinality() == protoreflect.Repeated {
repeatedSchema := schema.ArrayOf(schema.String(fieldDescription))
instance.OptionalField(nameable.NewSimpleNameable(fieldName), repeatedSchema, func(node *node.Node) error {
values, err := node.GetSliceOfExpandedStrings(mergedEnv)
if err != nil {
return err
}
fieldInstance := instance.proto.NewField(field)
for _, value := range values {
fieldInstance.List().Append(protoreflect.ValueOfString(value))
}
instance.proto.Set(field, fieldInstance)
return nil
})
} else {
parseCallback := func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
instance.proto.Set(field, protoreflect.ValueOfString(value))
return nil
}
if strings.HasSuffix(fieldName, "credentials") || strings.HasSuffix(fieldName, "config") {
// some trickery to be able to specify top level credentials for instances
instance.CollectibleField(fieldName, schema.String(fieldDescription), parseCallback)
} else {
instance.OptionalField(nameable.NewSimpleNameable(fieldName), schema.String(fieldDescription), parseCallback)
}
}
case protoreflect.Int64Kind, protoreflect.Sint64Kind,
protoreflect.Fixed64Kind, protoreflect.Sfixed64Kind:
intSchema := schema.Integer(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), intSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
var parsedValue int64
if strings.EqualFold(fieldName, "memory") {
parsedValue, err = resources.ParseMegaBytes(value)
} else {
parsedValue, err = strconv.ParseInt(value, 10, 64)
}
if err != nil {
return node.ParserError("%s", err.Error())
}
instance.proto.Set(field, protoreflect.ValueOfInt64(parsedValue))
return nil
})
case protoreflect.Uint64Kind:
intSchema := schema.Integer(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), intSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
var parsedValue int64
if strings.EqualFold(fieldName, "memory") {
parsedValue, err = resources.ParseMegaBytes(value)
} else {
parsedValue, err = strconv.ParseInt(value, 10, 64)
}
if err != nil {
return node.ParserError("%s", err.Error())
}
instance.proto.Set(field, protoreflect.ValueOfUint64(uint64(parsedValue)))
return nil
})
case protoreflect.Int32Kind, protoreflect.Sint32Kind,
protoreflect.Fixed32Kind, protoreflect.Sfixed32Kind:
intSchema := schema.Integer(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), intSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
parsedValue, err := strconv.ParseInt(value, 10, 32)
if strings.EqualFold(fieldName, "memory") {
parsedValue, err = resources.ParseMegaBytes(value)
}
if err != nil {
return node.ParserError("%s", err.Error())
}
instance.proto.Set(field, protoreflect.ValueOfInt32(int32(parsedValue)))
return nil
})
case protoreflect.Uint32Kind:
intSchema := schema.Integer(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), intSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
parsedValue, err := strconv.ParseInt(value, 10, 32)
if strings.EqualFold(fieldName, "memory") {
parsedValue, err = resources.ParseMegaBytes(value)
}
if err != nil {
return node.ParserError("%s", err.Error())
}
instance.proto.Set(field, protoreflect.ValueOfUint32(uint32(parsedValue)))
return nil
})
case protoreflect.BoolKind:
boolSchema := schema.Boolean(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), boolSchema, func(node *node.Node) error {
evaluation, err := node.GetBoolValue(mergedEnv, boolevator)
if err != nil {
return err
}
instance.proto.Set(field, protoreflect.ValueOfBool(evaluation))
return nil
})
case protoreflect.FloatKind:
numberSchema := schema.Number(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), numberSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
parsedValue, err := strconv.ParseFloat(value, 32)
if err != nil {
return err
}
instance.proto.Set(field, protoreflect.ValueOfFloat32(float32(parsedValue)))
return nil
})
case protoreflect.DoubleKind:
numberSchema := schema.Number(fieldDescription)
instance.OptionalField(nameable.NewSimpleNameable(fieldName), numberSchema, func(node *node.Node) error {
value, err := node.GetExpandedStringValue(mergedEnv)
if err != nil {
return err
}
parsedValue, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
instance.proto.Set(field, protoreflect.ValueOfFloat64(parsedValue))
return nil
})
case protoreflect.GroupKind, protoreflect.BytesKind:
// not supported
}
}
return instance
}
func (p *ProtoInstance) Parse(node *node.Node) (*dynamicpb.Message, error) {
if err := p.DefaultParser.Parse(node); err != nil {
return nil, err
}
return p.proto, nil
}
//nolint:goconst
func GuessPlatform(anyInstance *anypb.Any, descriptor protoreflect.MessageDescriptor) string {
instanceType := strings.ToLower(anyInstance.TypeUrl)
if strings.Contains(instanceType, "windows") {
return "windows"
}
if strings.Contains(instanceType, "freebsd") {
return "freebsd"
}
if strings.Contains(instanceType, "darwin") {
return "darwin"
}
if strings.Contains(instanceType, "osx") {
return "darwin"
}
if strings.Contains(instanceType, "anka") {
return "darwin"
}
dynamicMessage := dynamicpb.NewMessage(descriptor)
_ = proto.Unmarshal(anyInstance.GetValue(), dynamicMessage)
return GuessPlatformOfProtoMessage(dynamicMessage, descriptor)
}
func GuessPlatformOfProtoMessage(message protoreflect.Message, descriptor protoreflect.MessageDescriptor) string {
fields := descriptor.Fields()
platformField := fields.ByJSONName("platform")
if platformField != nil && message.Has(platformField) {
value := message.Get(platformField)
valueDescription := platformField.Enum().Values().Get(int(value.Enum()))
enumName := string(valueDescription.Name())
return strings.ToLower(enumName)
}
if platformField != nil {
// there is platform field but it's not set so let's return the default
return "linux"
}
for i := 0; i < fields.Len(); i++ {
field := fields.Get(i)
// recursively check only message fields but not lists since 'platform' shouldn't be in a repeated field
if field.Kind() != protoreflect.MessageKind || field.Cardinality() == protoreflect.Repeated {
continue
}
if !message.Has(field) {
continue
}
fieldValue := message.Get(field)
platformOfField := GuessPlatformOfProtoMessage(fieldValue.Message(), field.Message())
if platformOfField != "" {
return platformOfField
}
}
return ""
}
func GuessArchitectureOfProtoMessage(anyInstance *anypb.Any, descriptor protoreflect.MessageDescriptor) string {
message := dynamicpb.NewMessage(descriptor)
_ = proto.Unmarshal(anyInstance.GetValue(), message)
fields := descriptor.Fields()
architectureField := fields.ByJSONName("architecture")
if architectureField != nil && message.Has(architectureField) {
value := message.Get(architectureField)
valueDescription := architectureField.Enum().Values().Get(int(value.Enum()))
enumName := string(valueDescription.Name())
return strings.ToLower(enumName)
}
return ""
}
func (p *ProtoInstance) Schema() *jsschema.Schema {
modifiedSchema := p.DefaultParser.Schema()
modifiedSchema.Type = jsschema.PrimitiveTypes{jsschema.ObjectType}
return modifiedSchema
}