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package.go
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package.go
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// Copyright 2022 Namespace Labs 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.
package pkggraph
import (
"context"
"io/fs"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
"google.golang.org/protobuf/types/known/anypb"
"namespacelabs.dev/foundation/internal/codegen/protos"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/types"
)
type Package struct {
Location Location
PackageSources fs.FS // Filenames included will be relative to the module root, not the package.
NewFrontend bool // If set to true, the new frontend parser was used to load this package.
Parsed PreProvision
// One of.
Extension *schema.Node
Service *schema.Node
Server *schema.Server
// Includes auto-generated (e.g. server startup) tests.
Tests []*schema.Test
// Inlined or explicitly defined binaries.
Binaries []*schema.Binary
// Integration that has been applied to the server in this package. May be nil.
// Shouldn't be used outside of workspace.FinalizePackage.
Integration *schema.Integration
// Parsed secret definitions within the package.
Secrets []*schema.SecretSpec
// Parsed volume definitions within the package.
Volumes []*schema.Volume
// Resources associated with node types.
Provides map[string]*protos.FileDescriptorSetAndDeps // key: `Provides.Name`
Services map[string]*protos.FileDescriptorSetAndDeps // key: fully qualified service name
PackageData []*types.Resource
// Parsed resources
Resources []ResourceInstance
ResourceClasses []ResourceClass
ResourceProviders []ResourceProvider
// Hooks
PrepareHooks []PrepareHook
// Raw resources definitions within a package.
ResourceClassSpecs []*schema.ResourceClass
ResourceProvidersSpecs []*schema.ResourceProvider
ResourceInstanceSpecs []*schema.ResourceInstance
}
type ResourceSpec struct {
Source *schema.ResourceInstance
Intent *anypb.Any // XXX always use serialized JSON.
IntentType *UserType
Class ResourceClass
Provider *ResourceProvider
ResourceInputs []ResourceInstance // Resources passed to the provider.
}
type ResourceInstance struct {
ResourceID string
ResourceRef *schema.PackageRef
Spec ResourceSpec
}
type ResourceClass struct {
Ref *schema.PackageRef
Source *schema.ResourceClass
DefaultProvider schema.PackageName // May be empty.
InstanceType UserType
}
type ResourceProvider struct {
Spec *schema.ResourceProvider
ProviderID string
IntentType *UserType
Resources []ResourceInstance
ResourceInputs []ExpectedResourceInstance
}
type ExpectedResourceInstance struct {
Name *schema.PackageRef
Class ResourceClass
DefaultResource *schema.PackageRef
}
func (rc ResourceClass) PackageName() schema.PackageName {
return schema.PackageName(rc.Source.PackageName)
}
type UserType struct {
Descriptor protoreflect.MessageDescriptor
Sources *protos.FileDescriptorSetAndDeps
Registry *protoregistry.Files
}
type PrepareHook struct {
InvokeInternal string
InvokeBinary *schema.Invocation
}
func (pr *Package) PackageName() schema.PackageName { return pr.Location.PackageName }
func (pr *Package) Node() *schema.Node {
if pr.Extension != nil {
return pr.Extension
}
if pr.Service != nil {
return pr.Service
}
return nil
}
func (pr *Package) LookupBinary(name string) (*schema.Binary, error) {
for _, bin := range pr.Binaries {
if bin.Name == name {
return bin, nil
}
}
if name == "" && len(pr.Binaries) == 1 {
return pr.Binaries[0], nil
}
return nil, fnerrors.NewWithLocation(pr.Location, "no such binary %q", name)
}
func (pr *Package) LookupResourceClass(name string) *ResourceClass {
for _, rc := range pr.ResourceClasses {
if rc.Source.Name == name {
return &rc
}
}
return nil
}
func (pr *Package) LookupResourceProvider(classRef *schema.PackageRef) *ResourceProvider {
for _, p := range pr.ResourceProviders {
if p.Spec.ProvidesClass.Equals(classRef) {
return &p
}
}
return nil
}
func (pr *Package) LookupResourceInstance(name string) *ResourceInstance {
for _, r := range pr.Resources {
if r.ResourceRef.Name == name {
return &r
}
}
return nil
}
func (pr *Package) LookupSecret(name string) *schema.SecretSpec {
for _, secret := range pr.Secrets {
if secret.Name == name {
return secret
}
}
return nil
}
func (rp ResourceProvider) LookupExpected(name *schema.PackageRef) *ExpectedResourceInstance {
for _, x := range rp.ResourceInputs {
if x.Name.Equals(name) {
return &x
}
}
return nil
}
func LookupResourceClass(ctx context.Context, pl MinimalPackageLoader, owner *Package, ref *schema.PackageRef) (*ResourceClass, error) {
if owner == nil || owner.Location.PackageName != ref.AsPackageName() {
pkg, err := pl.LoadByName(ctx, ref.AsPackageName())
if err != nil {
return nil, err
}
owner = pkg
}
rc := owner.LookupResourceClass(ref.Name)
if rc == nil {
return nil, fnerrors.BadInputError("resource class %q not found in package %q", ref.Name, ref.PackageName)
}
return rc, nil
}