mirror of https://github.com/pulumi/pulumi.git
97 lines
3.0 KiB
Go
97 lines
3.0 KiB
Go
// Copyright 2016-2020, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package engine
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import (
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"github.com/blang/semver"
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"github.com/pkg/errors"
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"google.golang.org/grpc"
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"github.com/pulumi/pulumi/sdk/v2/go/common/resource/plugin"
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"github.com/pulumi/pulumi/sdk/v2/go/common/tokens"
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"github.com/pulumi/pulumi/sdk/v2/go/common/util/rpcutil"
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"github.com/pulumi/pulumi/sdk/v2/go/common/workspace"
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pulumirpc "github.com/pulumi/pulumi/sdk/v2/proto/go"
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)
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type pluginHost struct {
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plugin.Host
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languageRuntime plugin.LanguageRuntime
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providers []workspace.PluginInfo
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}
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func (host *pluginHost) connectToLanguageRuntime(ctx *plugin.Context, address string) error {
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// Dial the language runtime.
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conn, err := grpc.Dial(address, grpc.WithInsecure(),
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grpc.WithUnaryInterceptor(rpcutil.OpenTracingClientInterceptor()), rpcutil.GrpcChannelOptions())
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if err != nil {
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return errors.Wrap(err, "could not connect to language host")
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}
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client := pulumirpc.NewLanguageRuntimeClient(conn)
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host.languageRuntime = plugin.NewLanguageRuntimeClient(ctx, clientRuntimeName, client)
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return nil
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}
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func (host *pluginHost) loadProvider(name tokens.Package, version *semver.Version) (plugin.Provider, error) {
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if host.languageRuntime == nil {
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return nil, nil
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}
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bestInHost, err := workspace.GetPluginInfoFromList(host.providers, workspace.ResourcePlugin, string(name), version)
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if err != nil || bestInHost == nil {
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return nil, nil
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}
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workspacePlugins, err := workspace.GetPlugins()
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if err != nil {
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return nil, err
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}
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allPlugins := append(workspacePlugins, host.providers...)
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bestOverall, err := workspace.GetPluginInfoFromList(allPlugins, workspace.ResourcePlugin, string(name), version)
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if err != nil || *bestInHost != *bestOverall {
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return nil, err
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}
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var bestVersion semver.Version
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if bestOverall.Version != nil {
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bestVersion = *bestOverall.Version
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}
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return host.languageRuntime.StartProvider(bestOverall.Name, bestVersion)
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}
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func (host *pluginHost) Provider(name tokens.Package, version *semver.Version) (plugin.Provider, error) {
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provider, err := host.loadProvider(name, version)
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if err != nil || provider == nil {
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return host.Host.Provider(name, version)
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}
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return provider, nil
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}
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func (host *pluginHost) LanguageRuntime(runtime string) (plugin.LanguageRuntime, error) {
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if host.languageRuntime != nil {
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return host.languageRuntime, nil
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}
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lang, err := host.Host.LanguageRuntime(runtime)
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if err != nil {
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return nil, err
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}
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host.languageRuntime = lang
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return lang, nil
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}
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