Previously, the checkpoint manifest contained the full path to a plugin binary, in places of its friendly name. Now that we must move to a model where we install plugins in the PPC based on the manifest contents, we actually need to store the name, in addition to the version (which is already there). We still also capture the path for debugging purposes.
123 lines
3.6 KiB
Go
123 lines
3.6 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package plugin
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import (
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"fmt"
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"strings"
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"github.com/blang/semver"
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"github.com/golang/glog"
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pbempty "github.com/golang/protobuf/ptypes/empty"
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"github.com/pulumi/pulumi/pkg/resource"
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"github.com/pulumi/pulumi/pkg/tokens"
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"github.com/pulumi/pulumi/pkg/util/contract"
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"github.com/pulumi/pulumi/pkg/workspace"
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pulumirpc "github.com/pulumi/pulumi/sdk/proto/go"
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)
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// analyzer reflects an analyzer plugin, loaded dynamically for a single suite of checks.
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type analyzer struct {
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ctx *Context
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name tokens.QName
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plug *plugin
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client pulumirpc.AnalyzerClient
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}
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// NewAnalyzer binds to a given analyzer's plugin by name and creates a gRPC connection to it. If the associated plugin
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// could not be found by name on the PATH, or an error occurs while creating the child process, an error is returned.
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func NewAnalyzer(host Host, ctx *Context, name tokens.QName) (Analyzer, error) {
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// Load the plugin's path by using the standard workspace logic.
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_, path, err := workspace.GetPluginPath(
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workspace.AnalyzerPlugin, strings.Replace(string(name), tokens.QNameDelimiter, "_", -1), nil)
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if err != nil {
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return nil, err
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} else if path == "" {
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return nil, NewMissingError(workspace.PluginInfo{
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Kind: workspace.AnalyzerPlugin,
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Name: string(name),
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})
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}
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plug, err := newPlugin(ctx, path, fmt.Sprintf("%v (analyzer)", name), []string{host.ServerAddr()})
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if err != nil {
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return nil, err
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}
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contract.Assertf(plug != nil, "unexpected nil analyzer plugin for %s", name)
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return &analyzer{
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ctx: ctx,
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name: name,
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plug: plug,
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client: pulumirpc.NewAnalyzerClient(plug.Conn),
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}, nil
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}
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func (a *analyzer) Name() tokens.QName { return a.name }
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// label returns a base label for tracing functions.
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func (a *analyzer) label() string {
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return fmt.Sprintf("Analyzer[%s]", a.name)
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}
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// Analyze analyzes a single resource object, and returns any errors that it finds.
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func (a *analyzer) Analyze(t tokens.Type, props resource.PropertyMap) ([]AnalyzeFailure, error) {
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label := fmt.Sprintf("%s.Analyze(%s)", a.label(), t)
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glog.V(7).Infof("%s executing (#props=%d)", label, len(props))
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mprops, err := MarshalProperties(props, MarshalOptions{})
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if err != nil {
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return nil, err
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}
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resp, err := a.client.Analyze(a.ctx.Request(), &pulumirpc.AnalyzeRequest{
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Type: string(t),
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Properties: mprops,
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})
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if err != nil {
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glog.V(7).Infof("%s failed: err=%v", label, err)
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return nil, err
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}
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var failures []AnalyzeFailure
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for _, failure := range resp.GetFailures() {
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failures = append(failures, AnalyzeFailure{
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Property: resource.PropertyKey(failure.Property),
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Reason: failure.Reason,
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})
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}
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glog.V(7).Infof("%s success: failures=#%d", label, len(failures))
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return failures, nil
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}
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// GetPluginInfo returns this plugin's information.
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func (a *analyzer) GetPluginInfo() (workspace.PluginInfo, error) {
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label := fmt.Sprintf("%s.GetPluginInfo()", a.label())
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glog.V(7).Infof("%s executing", label)
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resp, err := a.client.GetPluginInfo(a.ctx.Request(), &pbempty.Empty{})
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if err != nil {
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glog.V(7).Infof("%s failed: err=%v", a.label(), err)
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return workspace.PluginInfo{}, err
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}
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var version *semver.Version
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if v := resp.Version; v != "" {
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sv, err := semver.ParseTolerant(v)
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if err != nil {
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return workspace.PluginInfo{}, err
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}
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version = &sv
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}
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return workspace.PluginInfo{
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Name: string(a.name),
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Path: a.plug.Bin,
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Kind: workspace.AnalyzerPlugin,
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Version: version,
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}, nil
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}
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// Close tears down the underlying plugin RPC connection and process.
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func (a *analyzer) Close() error {
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return a.plug.Close()
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}
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