After 233c5a8
landed, I noticed there are a few things to be fixed up:
* Run gometalinter in all the right places. We need to run both in
lint and lint_quiet targets. I've also cleaned up some of the logic
around what to suppress so there's less repetition.
* We currently @ meaningful commands, which is unfortunate, since it
makes debugging Makefiles tough (especially when looking at CI build
logs). Going forward, we should only use @ for meaningless commands,
like @echo.
* The AWS project wasn't actually running tslint, because it needs to
say `tslint './pack/**/*.ts' --exclude='./pack/node_modules/**'`.
The current script of `tslint lib/aws/pack/...` wasn't actually
running lint, hence we missed a lot of AWS lint issues.
* Fix up the issues that these fixes uncovered. Mostly err shadowing.
622 lines
20 KiB
Go
622 lines
20 KiB
Go
// Licensed to Pulumi Corporation ("Pulumi") under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// Pulumi licenses this file to You under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. 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 main
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import (
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"bytes"
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"fmt"
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"sort"
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"strconv"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/pulumi/lumi/pkg/diag"
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"github.com/pulumi/lumi/pkg/diag/colors"
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"github.com/pulumi/lumi/pkg/resource"
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"github.com/pulumi/lumi/pkg/resource/deploy"
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"github.com/pulumi/lumi/pkg/resource/plugin"
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"github.com/pulumi/lumi/pkg/tokens"
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"github.com/pulumi/lumi/pkg/util/cmdutil"
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"github.com/pulumi/lumi/pkg/util/contract"
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)
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func newPlanCmd() *cobra.Command {
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var analyzers []string
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var dotOutput bool
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var env string
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var showConfig bool
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var showReads bool
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var showReplaceDeletes bool
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var showSames bool
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var summary bool
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var cmd = &cobra.Command{
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Use: "plan [<package>] [-- [<args>]]",
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Aliases: []string{"dryrun"},
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Short: "Show a plan to update, create, and delete an environment's resources",
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Long: "Show a plan to update, create, and delete an environment's resources\n" +
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"\n" +
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"This command displays a plan to update an existing environment whose state is represented by\n" +
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"an existing snapshot file. The new desired state is computed by compiling and evaluating an\n" +
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"executable package, and extracting all resource allocations from its resulting object graph.\n" +
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"This graph is compared against the existing state to determine what operations must take\n" +
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"place to achieve the desired state. No changes to the environment will actually take place.\n" +
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"\n" +
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"By default, the package to execute is loaded from the current directory. Optionally, an\n" +
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"explicit path can be provided using the [package] argument.",
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Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
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info, err := initEnvCmdName(tokens.QName(env), args)
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if err != nil {
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return err
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}
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contract.Assertf(!dotOutput, "TODO[pulumi/lumi#235]: DOT files not yet supported")
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opts := deployOptions{
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Destroy: false,
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DryRun: true,
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Analyzers: analyzers,
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ShowConfig: showConfig,
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ShowReads: showReads,
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ShowReplaceDeletes: showReplaceDeletes,
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ShowSames: showSames,
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Summary: summary,
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DOT: dotOutput,
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}
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result, err := plan(cmd, info, opts)
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if err != nil {
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return err
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}
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if result != nil {
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if err := printPlan(result, opts); err != nil {
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return err
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}
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}
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return nil
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}),
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}
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cmd.PersistentFlags().StringSliceVar(
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&analyzers, "analyzer", []string{},
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"Run one or more analyzers as part of this deployment")
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cmd.PersistentFlags().BoolVar(
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&dotOutput, "dot", false,
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"Output the plan as a DOT digraph (graph description language)")
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cmd.PersistentFlags().StringVarP(
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&env, "env", "e", "",
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"Choose an environment other than the currently selected one")
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cmd.PersistentFlags().BoolVar(
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&showConfig, "show-config", false,
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"Show configuration keys and variables")
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cmd.PersistentFlags().BoolVar(
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&showReads, "show-reads", false,
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"Show resources that will be read, in addition to those that will be modified")
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cmd.PersistentFlags().BoolVar(
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&showReplaceDeletes, "show-replace-deletes", false,
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"Show detailed resource replacement creates and deletes; normally shows as a single step")
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cmd.PersistentFlags().BoolVar(
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&showSames, "show-sames", false,
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"Show resources that needn't be updated because they haven't changed, alongside those that do")
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cmd.PersistentFlags().BoolVarP(
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&summary, "summary", "s", false,
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"Only display summarization of resources and plan operations")
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return cmd
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}
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// plan just uses the standard logic to parse arguments, options, and to create a snapshot and plan.
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func plan(cmd *cobra.Command, info *envCmdInfo, opts deployOptions) (*planResult, error) {
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contract.Assert(info != nil)
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contract.Assert(info.Target != nil)
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// Create a context for plugins.
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ctx, err := plugin.NewContext(cmdutil.Diag(), nil)
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if err != nil {
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return nil, err
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}
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// First, compile the package, in preparatin for interpreting it and creating resources.
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result := compile(cmd, info.Args)
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if result == nil {
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return nil, nil
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}
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// If that succeded, create a new source that will perform interpretation of the compiled program.
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// TODO[pulumi/lumi#88]: we are passing `nil` as the arguments map; we need to allow a way to pass these.
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source := deploy.NewEvalSource(ctx, result.B.Ctx(), result.Pkg, nil, info.Target.Config, opts.Destroy)
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// If there are any analyzers in the project file, add them.
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var analyzers []tokens.QName
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if as := result.Pkg.Node.Analyzers; as != nil {
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for _, a := range *as {
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analyzers = append(analyzers, a)
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}
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}
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// Append any analyzers from the command line.
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for _, a := range opts.Analyzers {
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analyzers = append(analyzers, tokens.QName(a))
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}
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// Generate a plan; this API handles all interesting cases (create, update, delete).
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plan := deploy.NewPlan(ctx, info.Target, info.Snapshot, source, analyzers)
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return &planResult{
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Info: info,
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Plan: plan,
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}, nil
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}
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type planResult struct {
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Info *envCmdInfo // plan command information.
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Plan *deploy.Plan // the plan created by this command.
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}
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func printPlan(result *planResult, opts deployOptions) error {
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// First print config/unchanged/etc. if necessary.
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var prelude bytes.Buffer
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printPrelude(&prelude, result, opts, true)
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// Now walk the plan's steps and and pretty-print them out.
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prelude.WriteString(fmt.Sprintf("%vPlanned changes:%v\n", colors.SpecUnimportant, colors.Reset))
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fmt.Print(colors.Colorize(&prelude))
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iter, err := result.Plan.Iterate()
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if err != nil {
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return errors.Errorf("An error occurred while preparing the plan: %v", err)
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}
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defer iter.Close()
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step, err := iter.Next()
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if err != nil {
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return errors.Errorf("An error occurred while enumerating the plan: %v", err)
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}
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var summary bytes.Buffer
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empty := true
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counts := make(map[deploy.StepOp]int)
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for step != nil {
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var err error
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// Perform the pre-step.
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if err = step.Pre(); err != nil {
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return errors.Errorf("An error occurred preparing the plan: %v", err)
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}
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// Print this step information (resource and all its properties).
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// IDEA: it would be nice if, in the output, we showed the dependencies a la `git log --graph`.
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track := shouldTrack(step, opts)
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if track {
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printStep(&summary, step, opts.Summary, true, "")
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empty = false
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}
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// Be sure to skip the step so that in-memory state updates are performed.
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if err = step.Skip(); err != nil {
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return errors.Errorf("An error occurred while advancing the plan: %v", err)
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}
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if track {
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counts[step.Op()]++
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}
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if step, err = iter.Next(); err != nil {
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return errors.Errorf("An error occurred while viewing the plan: %v", err)
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}
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}
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// If we are doing an empty update, say so.
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if empty {
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cmdutil.Diag().Infof(diag.Message("no resources need to be updated"))
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} else {
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// Print a summary of operation counts.
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printSummary(&summary, counts, true)
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fmt.Print(colors.Colorize(&summary))
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}
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return nil
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}
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// shouldTrack returns true if the step should be "tracked"; this affects two things: 1) whether the resource is shown
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// in the planning phase and 2) whether the resource operation is tallied up and displayed in the final summary.
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func shouldTrack(step deploy.Step, opts deployOptions) bool {
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// For certain operations, whether they are tracked is controlled by flags (to cut down on superfluous output).
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if _, isrd := step.(deploy.ReadStep); isrd {
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return opts.ShowReads
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} else if step.Op() == deploy.OpSame {
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return opts.ShowSames
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} else if step.Op() == deploy.OpDelete && step.(*deploy.DeleteStep).Replaced() {
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return opts.ShowReplaceDeletes
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}
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// By default, however, steps are tracked.
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return true
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}
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func printPrelude(b *bytes.Buffer, result *planResult, opts deployOptions, planning bool) {
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// If there are configuration variables, show them.
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if opts.ShowConfig {
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printConfig(b, result.Info.Target.Config)
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}
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}
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func printConfig(b *bytes.Buffer, config resource.ConfigMap) {
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b.WriteString(fmt.Sprintf("%vConfiguration:%v\n", colors.SpecUnimportant, colors.Reset))
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if config != nil {
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var toks []string
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for tok := range config {
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toks = append(toks, string(tok))
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}
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sort.Strings(toks)
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for _, tok := range toks {
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b.WriteString(fmt.Sprintf("%v%v: %v\n", detailsIndent, tok, config[tokens.Token(tok)]))
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}
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}
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}
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func printSummary(b *bytes.Buffer, counts map[deploy.StepOp]int, plan bool) {
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total := 0
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for _, c := range counts {
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total += c
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}
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var planned string
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if plan {
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planned = "planned "
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}
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var colon string
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if total != 0 {
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colon = ":"
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}
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b.WriteString(fmt.Sprintf("%v total %v%v%v\n", total, planned, plural("change", total), colon))
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var planTo string
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var pastTense string
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if plan {
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planTo = "to "
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} else {
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pastTense = "d"
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}
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for _, op := range deploy.StepOps {
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if c := counts[op]; c > 0 {
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b.WriteString(fmt.Sprintf(" %v%v %v %v%v%v%v\n",
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op.Prefix(), c, plural("resource", c), planTo, op, pastTense, colors.Reset))
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}
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}
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}
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func plural(s string, c int) string {
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if c != 1 {
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s += "s"
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}
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return s
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}
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const detailsIndent = " " // 4 spaces, plus 2 for "+ ", "- ", and " " leaders
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func printStep(b *bytes.Buffer, step deploy.Step, summary bool, planning bool, indent string) {
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// First print out the operation's prefix.
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b.WriteString(step.Op().Prefix())
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// Next, print the resource type (since it is easy on the eyes and can be quickly identified).
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printStepHeader(b, step)
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b.WriteString(step.Op().Suffix())
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// Next print the resource URN, properties, etc.
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if mut, ismut := step.(deploy.MutatingStep); ismut {
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var replaces []resource.PropertyKey
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if step.Op() == deploy.OpReplace {
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replaces = step.(*deploy.ReplaceStep).Reasons()
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}
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printResourceProperties(b,
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mut.URN(), mut.Old(), mut.New(), mut.Inputs(), replaces, summary, planning, indent)
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} else if rd, isrd := step.(deploy.ReadStep); isrd {
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for _, res := range rd.Resources() {
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printResourceProperties(b,
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"", nil, res, res.CopyProperties(), nil, summary, planning, indent)
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}
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} else {
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contract.Failf("Expected each step to either be mutating or read-only")
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}
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// Finally make sure to reset the color.
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b.WriteString(colors.Reset)
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}
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func printStepHeader(b *bytes.Buffer, step deploy.Step) {
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b.WriteString(fmt.Sprintf("%s:\n", string(step.Type())))
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}
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func printResourceProperties(b *bytes.Buffer, urn resource.URN, old *resource.State, new *resource.Object,
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props resource.PropertyMap, replaces []resource.PropertyKey, summary bool, planning bool, indent string) {
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indent += detailsIndent
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// Print out the URN and, if present, the ID, as "pseudo-properties".
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var id resource.ID
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if old != nil {
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id = old.ID()
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}
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if id != "" {
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b.WriteString(fmt.Sprintf("%s[id=%s]\n", indent, string(id)))
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}
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if urn != "" {
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b.WriteString(fmt.Sprintf("%s[urn=%s]\n", indent, urn))
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}
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if !summary {
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// Print all of the properties associated with this resource.
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if old == nil && new != nil {
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printObject(b, props, planning, indent)
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} else if new == nil && old != nil {
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printObject(b, old.Inputs(), planning, indent)
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} else {
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contract.Assert(props != nil) // use computed properties for diffs.
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printOldNewDiffs(b, old.Inputs(), props, replaces, planning, indent)
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}
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}
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}
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func maxKey(keys []resource.PropertyKey) int {
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maxkey := 0
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for _, k := range keys {
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if len(k) > maxkey {
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maxkey = len(k)
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}
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}
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return maxkey
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}
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func printObject(b *bytes.Buffer, props resource.PropertyMap, planning bool, indent string) {
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// Compute the maximum with of property keys so we can justify everything.
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keys := props.StableKeys()
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maxkey := maxKey(keys)
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// Now print out the values intelligently based on the type.
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for _, k := range keys {
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if v := props[k]; shouldPrintPropertyValue(v, planning) {
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printPropertyTitle(b, k, maxkey, indent)
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printPropertyValue(b, v, planning, indent)
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}
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}
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}
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// printResourceOutputProperties prints only those properties that either differ from the input properties or, if
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// there is an old snapshot of the resource, differ from the prior old snapshot's output properties.
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func printResourceOutputProperties(b *bytes.Buffer, step deploy.Step, indent string) {
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mut, ismut := step.(deploy.MutatingStep)
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if !ismut {
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// Only mutating steps have output properties associated with them.
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return
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}
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indent += detailsIndent
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b.WriteString(step.Op().Color())
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b.WriteString(step.Op().Suffix())
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// First fetch all the relevant property maps that we may consult.
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newins := mut.Inputs()
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newouts := mut.Outputs()
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var oldouts resource.PropertyMap
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if old := mut.Old(); old != nil {
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oldouts = old.Outputs()
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}
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// Now sort the keys and enumerate each output property in a deterministic order.
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keys := newouts.StableKeys()
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maxkey := maxKey(keys)
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for _, k := range keys {
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newout := newouts[k]
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// Print this property if it is printable, and one of these cases
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// 1) new ins has it and it's different;
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// 2) new ins doesn't have it, but old outs does, and it's different;
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// 3) neither old outs nor new ins contain it;
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if shouldPrintPropertyValue(newout, true) {
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var print bool
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if newin, has := newins[k]; has {
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print = (newout.Diff(newin) != nil) // case 1
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} else if oldouts != nil {
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if oldout, has := oldouts[k]; has {
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print = (newout.Diff(oldout) != nil) // case 2
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} else {
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print = true // case 3
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}
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} else {
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print = true // also case 3
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}
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if print {
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printPropertyTitle(b, k, maxkey, indent)
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printPropertyValue(b, newout, false, indent)
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}
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}
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}
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b.WriteString(colors.Reset)
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}
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func shouldPrintPropertyValue(v resource.PropertyValue, outs bool) bool {
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if v.IsNull() {
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// by default, don't print nulls (they just clutter up the output)
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return false
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}
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if v.IsOutput() && !outs {
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// also don't show output properties until the outs parameter tells us to.
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return false
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}
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return true
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}
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func printPropertyTitle(b *bytes.Buffer, k resource.PropertyKey, align int, indent string) {
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b.WriteString(fmt.Sprintf("%s%-"+strconv.Itoa(align)+"s: ", indent, k))
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}
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func printPropertyValue(b *bytes.Buffer, v resource.PropertyValue, planning bool, indent string) {
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if v.IsNull() {
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b.WriteString("<null>")
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} else if v.IsBool() {
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b.WriteString(fmt.Sprintf("%t", v.BoolValue()))
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} else if v.IsNumber() {
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b.WriteString(fmt.Sprintf("%v", v.NumberValue()))
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} else if v.IsString() {
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b.WriteString(fmt.Sprintf("%q", v.StringValue()))
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} else if v.IsArray() {
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b.WriteString(fmt.Sprintf("[\n"))
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for i, elem := range v.ArrayValue() {
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newIndent := printArrayElemHeader(b, i, indent)
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printPropertyValue(b, elem, planning, newIndent)
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}
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b.WriteString(fmt.Sprintf("%s]", indent))
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} else if v.IsComputed() || v.IsOutput() {
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b.WriteString(v.TypeString())
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} else {
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contract.Assert(v.IsObject())
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b.WriteString("{\n")
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printObject(b, v.ObjectValue(), planning, indent+" ")
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b.WriteString(fmt.Sprintf("%s}", indent))
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}
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b.WriteString("\n")
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}
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|
|
func getArrayElemHeader(b *bytes.Buffer, i int, indent string) (string, string) {
|
|
prefix := fmt.Sprintf(" %s[%d]: ", indent, i)
|
|
return prefix, fmt.Sprintf("%-"+strconv.Itoa(len(prefix))+"s", "")
|
|
}
|
|
|
|
func printArrayElemHeader(b *bytes.Buffer, i int, indent string) string {
|
|
prefix, newIndent := getArrayElemHeader(b, i, indent)
|
|
b.WriteString(prefix)
|
|
return newIndent
|
|
}
|
|
|
|
func printOldNewDiffs(b *bytes.Buffer, olds resource.PropertyMap, news resource.PropertyMap,
|
|
replaces []resource.PropertyKey, planning bool, indent string) {
|
|
// Get the full diff structure between the two, and print it (recursively).
|
|
if diff := olds.Diff(news); diff != nil {
|
|
printObjectDiff(b, *diff, replaces, false, planning, indent)
|
|
} else {
|
|
printObject(b, news, planning, indent)
|
|
}
|
|
}
|
|
|
|
func printObjectDiff(b *bytes.Buffer, diff resource.ObjectDiff,
|
|
replaces []resource.PropertyKey, causedReplace bool, planning bool, indent string) {
|
|
contract.Assert(len(indent) > 2)
|
|
|
|
// Compute the maximum with of property keys so we can justify everything.
|
|
keys := diff.Keys()
|
|
maxkey := maxKey(keys)
|
|
|
|
// If a list of what causes a resource to get replaced exist, create a handy map.
|
|
var replaceMap map[resource.PropertyKey]bool
|
|
if len(replaces) > 0 {
|
|
replaceMap = make(map[resource.PropertyKey]bool)
|
|
for _, k := range replaces {
|
|
replaceMap[k] = true
|
|
}
|
|
}
|
|
|
|
// To print an object diff, enumerate the keys in stable order, and print each property independently.
|
|
for _, k := range keys {
|
|
title := func(id string) { printPropertyTitle(b, k, maxkey, id) }
|
|
if add, isadd := diff.Adds[k]; isadd {
|
|
if shouldPrintPropertyValue(add, planning) {
|
|
b.WriteString(colors.SpecAdded)
|
|
title(addIndent(indent))
|
|
printPropertyValue(b, add, planning, addIndent(indent))
|
|
b.WriteString(colors.Reset)
|
|
}
|
|
} else if delete, isdelete := diff.Deletes[k]; isdelete {
|
|
if shouldPrintPropertyValue(delete, planning) {
|
|
b.WriteString(colors.SpecDeleted)
|
|
title(deleteIndent(indent))
|
|
printPropertyValue(b, delete, planning, deleteIndent(indent))
|
|
b.WriteString(colors.Reset)
|
|
}
|
|
} else if update, isupdate := diff.Updates[k]; isupdate {
|
|
if !causedReplace && replaceMap != nil {
|
|
causedReplace = replaceMap[k]
|
|
}
|
|
printPropertyValueDiff(b, title, update, causedReplace, planning, indent)
|
|
} else if same := diff.Sames[k]; shouldPrintPropertyValue(same, planning) {
|
|
title(indent)
|
|
printPropertyValue(b, diff.Sames[k], planning, indent)
|
|
}
|
|
}
|
|
}
|
|
|
|
func printPropertyValueDiff(b *bytes.Buffer, title func(string), diff resource.ValueDiff,
|
|
causedReplace bool, planning bool, indent string) {
|
|
contract.Assert(len(indent) > 2)
|
|
|
|
if diff.Array != nil {
|
|
title(indent)
|
|
b.WriteString("[\n")
|
|
|
|
a := diff.Array
|
|
for i := 0; i < a.Len(); i++ {
|
|
_, newIndent := getArrayElemHeader(b, i, indent)
|
|
titleFunc := func(id string) { printArrayElemHeader(b, i, id) }
|
|
if add, isadd := a.Adds[i]; isadd {
|
|
b.WriteString(deploy.OpCreate.Color())
|
|
titleFunc(addIndent(indent))
|
|
printPropertyValue(b, add, planning, addIndent(newIndent))
|
|
b.WriteString(colors.Reset)
|
|
} else if delete, isdelete := a.Deletes[i]; isdelete {
|
|
b.WriteString(deploy.OpDelete.Color())
|
|
titleFunc(deleteIndent(indent))
|
|
printPropertyValue(b, delete, planning, deleteIndent(newIndent))
|
|
b.WriteString(colors.Reset)
|
|
} else if update, isupdate := a.Updates[i]; isupdate {
|
|
printPropertyValueDiff(b, title, update, causedReplace, planning, indent)
|
|
} else {
|
|
titleFunc(indent)
|
|
printPropertyValue(b, a.Sames[i], planning, newIndent)
|
|
}
|
|
}
|
|
b.WriteString(fmt.Sprintf("%s]\n", indent))
|
|
} else if diff.Object != nil {
|
|
title(indent)
|
|
b.WriteString("{\n")
|
|
printObjectDiff(b, *diff.Object, nil, causedReplace, planning, indent+" ")
|
|
b.WriteString(fmt.Sprintf("%s}\n", indent))
|
|
} else {
|
|
// If we ended up here, the two values either differ by type, or they have different primitive values. We will
|
|
// simply emit a deletion line followed by an addition line.
|
|
if shouldPrintPropertyValue(diff.Old, false) {
|
|
var color string
|
|
if causedReplace {
|
|
color = deploy.OpDelete.Color() // this property triggered replacement; color as a delete
|
|
} else {
|
|
color = deploy.OpUpdate.Color()
|
|
}
|
|
b.WriteString(color)
|
|
title(deleteIndent(indent))
|
|
printPropertyValue(b, diff.Old, planning, deleteIndent(indent))
|
|
b.WriteString(colors.Reset)
|
|
}
|
|
if shouldPrintPropertyValue(diff.New, false) {
|
|
var color string
|
|
if causedReplace {
|
|
color = deploy.OpCreate.Color() // this property triggered replacement; color as a create
|
|
} else {
|
|
color = deploy.OpUpdate.Color()
|
|
}
|
|
b.WriteString(color)
|
|
title(addIndent(indent))
|
|
printPropertyValue(b, diff.New, planning, addIndent(indent))
|
|
b.WriteString(colors.Reset)
|
|
}
|
|
}
|
|
}
|
|
|
|
func addIndent(indent string) string { return indent[:len(indent)-2] + "+ " }
|
|
func deleteIndent(indent string) string { return indent[:len(indent)-2] + "- " }
|