We've had multiple users ask for this, so let's do it proactively instead of waiting for #496 Fixes #2018
615 lines
19 KiB
Go
615 lines
19 KiB
Go
// Copyright 2016-2018, 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 cmd
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"sort"
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"strconv"
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"strings"
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"github.com/golang/glog"
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multierror "github.com/hashicorp/go-multierror"
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"github.com/opentracing/opentracing-go"
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"github.com/pkg/errors"
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survey "gopkg.in/AlecAivazis/survey.v1"
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surveycore "gopkg.in/AlecAivazis/survey.v1/core"
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git "gopkg.in/src-d/go-git.v4"
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"github.com/pulumi/pulumi/pkg/backend"
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"github.com/pulumi/pulumi/pkg/backend/display"
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"github.com/pulumi/pulumi/pkg/backend/filestate"
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"github.com/pulumi/pulumi/pkg/backend/httpstate"
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"github.com/pulumi/pulumi/pkg/backend/state"
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"github.com/pulumi/pulumi/pkg/diag/colors"
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"github.com/pulumi/pulumi/pkg/engine"
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"github.com/pulumi/pulumi/pkg/util/cancel"
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"github.com/pulumi/pulumi/pkg/util/ciutil"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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"github.com/pulumi/pulumi/pkg/util/contract"
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"github.com/pulumi/pulumi/pkg/util/gitutil"
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"github.com/pulumi/pulumi/pkg/workspace"
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)
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func hasDebugCommands() bool {
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return cmdutil.IsTruthy(os.Getenv("PULUMI_DEBUG_COMMANDS"))
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}
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func currentBackend(opts display.Options) (backend.Backend, error) {
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creds, err := workspace.GetStoredCredentials()
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if err != nil {
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return nil, err
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}
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if filestate.IsLocalBackendURL(creds.Current) {
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return filestate.New(cmdutil.Diag(), creds.Current)
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}
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return httpstate.Login(commandContext(), cmdutil.Diag(), creds.Current, opts)
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}
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// This is used to control the contents of the tracing header.
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var tracingHeader = os.Getenv("PULUMI_TRACING_HEADER")
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func commandContext() context.Context {
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ctx := context.Background()
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if cmdutil.IsTracingEnabled() {
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if cmdutil.TracingRootSpan != nil {
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ctx = opentracing.ContextWithSpan(ctx, cmdutil.TracingRootSpan)
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}
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tracingOptions := backend.TracingOptions{
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PropagateSpans: true,
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TracingHeader: tracingHeader,
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}
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ctx = backend.ContextWithTracingOptions(ctx, tracingOptions)
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}
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return ctx
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}
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// createStack creates a stack with the given name, and optionally selects it as the current.
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func createStack(
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b backend.Backend, stackRef backend.StackReference, opts interface{}, setCurrent bool) (backend.Stack, error) {
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stack, err := b.CreateStack(commandContext(), stackRef, opts)
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if err != nil {
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// If it's a StackAlreadyExistsError, don't wrap it.
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if _, ok := err.(*backend.StackAlreadyExistsError); ok {
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return nil, err
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}
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return nil, errors.Wrapf(err, "could not create stack")
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}
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if setCurrent {
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if err = state.SetCurrentStack(stack.Ref().String()); err != nil {
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return nil, err
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}
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}
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return stack, nil
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}
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// requireStack will require that a stack exists. If stackName is blank, the currently selected stack from
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// the workspace is returned. If no stack with either the given name, or a currently selected stack, exists,
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// and we are in an interactive terminal, the user will be prompted to create a new stack.
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func requireStack(
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stackName string, offerNew bool, opts display.Options, setCurrent bool) (backend.Stack, error) {
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if stackName == "" {
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return requireCurrentStack(offerNew, opts, setCurrent)
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}
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b, err := currentBackend(opts)
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if err != nil {
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return nil, err
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}
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stackRef, err := b.ParseStackReference(stackName)
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if err != nil {
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return nil, err
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}
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stack, err := b.GetStack(commandContext(), stackRef)
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if err != nil {
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return nil, err
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}
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if stack != nil {
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return stack, err
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}
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// No stack was found. If we're in a terminal, prompt to create one.
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if offerNew && cmdutil.Interactive() {
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fmt.Printf("The stack '%s' does not exist.\n", stackName)
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fmt.Printf("\n")
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_, err = cmdutil.ReadConsole("If you would like to create this stack now, please press <ENTER>, otherwise " +
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"press ^C")
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if err != nil {
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return nil, err
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}
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return createStack(b, stackRef, nil, setCurrent)
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}
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return nil, errors.Errorf("no stack named '%s' found", stackName)
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}
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func requireCurrentStack(offerNew bool, opts display.Options, setCurrent bool) (backend.Stack, error) {
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// Search for the current stack.
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b, err := currentBackend(opts)
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if err != nil {
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return nil, err
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}
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stack, err := state.CurrentStack(commandContext(), b)
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if err != nil {
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return nil, err
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} else if stack != nil {
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return stack, nil
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}
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// If no current stack exists, and we are interactive, prompt to select or create one.
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return chooseStack(b, offerNew, opts, setCurrent)
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}
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// chooseStack will prompt the user to choose amongst the full set of stacks in the given backend. If offerNew is
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// true, then the option to create an entirely new stack is provided and will create one as desired.
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func chooseStack(
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b backend.Backend, offerNew bool, opts display.Options, setCurrent bool) (backend.Stack, error) {
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// Prepare our error in case we need to issue it. Bail early if we're not interactive.
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var chooseStackErr string
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if offerNew {
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chooseStackErr = "no stack selected; please use `pulumi stack select` or `pulumi stack init` to choose one"
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} else {
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chooseStackErr = "no stack selected; please use `pulumi stack select` to choose one"
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}
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if !cmdutil.Interactive() {
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return nil, errors.New(chooseStackErr)
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}
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proj, err := workspace.DetectProject()
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if err != nil {
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return nil, err
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}
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// List stacks as available options.
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var options []string
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summaries, err := b.ListStacks(commandContext(), &proj.Name)
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if err != nil {
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return nil, errors.Wrapf(err, "could not query backend for stacks")
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}
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for _, summary := range summaries {
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name := summary.Name().String()
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options = append(options, name)
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}
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sort.Strings(options)
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// If we are offering to create a new stack, add that to the end of the list.
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const newOption = "<create a new stack>"
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if offerNew {
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options = append(options, newOption)
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} else if len(options) == 0 {
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// If no options are available, we can't offer a choice!
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return nil, errors.New("this command requires a stack, but there are none")
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}
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// If a stack is already selected, make that the default.
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var current string
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currStack, currErr := state.CurrentStack(commandContext(), b)
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contract.IgnoreError(currErr)
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if currStack != nil {
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current = currStack.Ref().String()
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}
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// Customize the prompt a little bit (and disable color since it doesn't match our scheme).
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surveycore.DisableColor = true
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surveycore.QuestionIcon = ""
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surveycore.SelectFocusIcon = opts.Color.Colorize(colors.BrightGreen + ">" + colors.Reset)
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message := "\rPlease choose a stack"
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if offerNew {
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message += ", or create a new one:"
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} else {
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message += ":"
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}
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message = opts.Color.Colorize(colors.SpecPrompt + message + colors.Reset)
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var option string
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if err = survey.AskOne(&survey.Select{
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Message: message,
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Options: options,
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Default: current,
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}, &option, nil); err != nil {
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return nil, errors.New(chooseStackErr)
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}
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if option == newOption {
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stackName, readErr := cmdutil.ReadConsole("Please enter your desired stack name")
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if readErr != nil {
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return nil, readErr
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}
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stackRef, parseErr := b.ParseStackReference(stackName)
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if parseErr != nil {
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return nil, parseErr
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}
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return createStack(b, stackRef, nil, setCurrent)
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}
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// With the stack name selected, look it up from the backend.
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stackRef, err := b.ParseStackReference(option)
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if err != nil {
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return nil, errors.Wrap(err, "parsing selected stack")
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}
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stack, err := b.GetStack(commandContext(), stackRef)
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if err != nil {
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return nil, errors.Wrap(err, "getting selected stack")
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}
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// If setCurrent is true, we'll persist this choice so it'll be used for future CLI operations.
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if setCurrent {
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if err = state.SetCurrentStack(stackRef.String()); err != nil {
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return nil, err
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}
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}
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return stack, nil
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}
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// readProject attempts to detect and read the project for the current workspace. If an error occurs, it will be
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// printed to Stderr, and the returned value will be nil. If the project is successfully detected and read, it
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// is returned along with the path to its containing directory, which will be used as the root of the project's
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// Pulumi program.
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func readProject() (*workspace.Project, string, error) {
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pwd, err := os.Getwd()
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if err != nil {
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return nil, "", err
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}
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// Now that we got here, we have a path, so we will try to load it.
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path, err := workspace.DetectProjectPathFrom(pwd)
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if err != nil {
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return nil, "", errors.Wrapf(err,
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"could not locate Pulumi.yaml project file (searching upwards from %s)", pwd)
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} else if path == "" {
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return nil, "", errors.Errorf(
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"no Pulumi.yaml project file found (searching upwards from %s)", pwd)
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}
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proj, err := workspace.LoadProject(path)
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if err != nil {
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return nil, "", err
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}
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return proj, filepath.Dir(path), nil
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}
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// anyWriter is an io.Writer that will set itself to `true` iff any call to `anyWriter.Write` is made with a
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// non-zero-length slice. This can be used to determine whether or not any data was ever written to the writer.
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type anyWriter bool
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func (w *anyWriter) Write(d []byte) (int, error) {
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if len(d) > 0 {
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*w = true
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}
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return len(d), nil
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}
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// isGitWorkTreeDirty returns true if the work tree for the current directory's repository is dirty.
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func isGitWorkTreeDirty(repoRoot string) (bool, error) {
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gitBin, err := exec.LookPath("git")
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if err != nil {
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return false, err
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}
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// nolint: gas
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gitStatusCmd := exec.Command(gitBin, "status", "--porcelain", "-z")
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var anyOutput anyWriter
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var stderr bytes.Buffer
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gitStatusCmd.Dir = repoRoot
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gitStatusCmd.Stdout = &anyOutput
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gitStatusCmd.Stderr = &stderr
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if err = gitStatusCmd.Run(); err != nil {
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if ee, ok := err.(*exec.ExitError); ok {
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ee.Stderr = stderr.Bytes()
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}
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return false, errors.Wrapf(err, "'git status' failed")
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}
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return bool(anyOutput), nil
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}
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// getUpdateMetadata returns an UpdateMetadata object, with optional data about the environment
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// performing the update.
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func getUpdateMetadata(msg, root string) (*backend.UpdateMetadata, error) {
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m := &backend.UpdateMetadata{
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Message: msg,
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Environment: make(map[string]string),
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}
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if err := addGitMetadata(root, m); err != nil {
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glog.V(3).Infof("errors detecting git metadata: %s", err)
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}
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addCIMetadataToEnvironment(m.Environment)
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return m, nil
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}
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// addGitMetadata populate's the environment metadata bag with Git-related values.
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func addGitMetadata(repoRoot string, m *backend.UpdateMetadata) error {
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var allErrors *multierror.Error
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// Gather git-related data as appropriate. (Returns nil, nil if no repo found.)
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repo, err := gitutil.GetGitRepository(repoRoot)
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if err != nil {
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return errors.Wrapf(err, "detecting Git repository")
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}
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if repo == nil {
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return nil
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}
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if err := AddGitRemoteMetadataToMap(repo, m.Environment); err != nil {
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allErrors = multierror.Append(allErrors, err)
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}
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if err := addGitCommitMetadata(repo, repoRoot, m); err != nil {
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allErrors = multierror.Append(allErrors, err)
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}
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return allErrors.ErrorOrNil()
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}
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// AddGitRemoteMetadataToMap reads the given git repo and adds its metadata to the given map bag.
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func AddGitRemoteMetadataToMap(repo *git.Repository, env map[string]string) error {
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var allErrors *multierror.Error
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// Get the remote URL for this repo.
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remoteURL, err := gitutil.GetGitRemoteURL(repo, "origin")
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if err != nil {
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return errors.Wrap(err, "detecting Git remote URL")
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}
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if remoteURL == "" {
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return nil
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}
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// Check if the remote URL is a GitHub or a GitLab URL.
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if err := addVCSMetadataToEnvironment(remoteURL, env); err != nil {
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allErrors = multierror.Append(allErrors, err)
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}
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// If the environment map contains the vcs kind and if it is GitHub,
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// then let's set the old metadata keys as well, so that the UI can continue to read those.
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// As of this writing, none of the other VCS were detected _previously_ and only the `github` keys were set
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// when the origin remote was truly a github remote.
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// TODO [pulumi/pulumi-service#2306] Once the UI is updated and we no longer need these keys, we can remove this block.
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if env[backend.VCSRepoKind] == gitutil.GitHubHostName && env[backend.VCSRepoOwner] != "" {
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env[backend.GitHubLogin] = env[backend.VCSRepoOwner]
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env[backend.GitHubRepo] = env[backend.VCSRepoName]
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}
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return allErrors.ErrorOrNil()
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}
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func addVCSMetadataToEnvironment(remoteURL string, env map[string]string) error {
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// GitLab, Bitbucket, Azure DevOps etc. repo slug if applicable.
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// We don't require a cloud-hosted VCS, so swallow errors.
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vcsInfo, err := gitutil.TryGetVCSInfo(remoteURL)
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if err != nil {
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return errors.Wrap(err, "detecting VCS project information")
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}
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env[backend.VCSRepoOwner] = vcsInfo.Owner
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env[backend.VCSRepoName] = vcsInfo.Repo
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env[backend.VCSRepoKind] = vcsInfo.Kind
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return nil
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}
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func addGitCommitMetadata(repo *git.Repository, repoRoot string, m *backend.UpdateMetadata) error {
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// When running in a CI/CD environment, the current git repo may be running from a
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// detached HEAD and may not have have the latest commit message. We fall back to
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// CI-system specific environment variables when possible.
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ciVars := ciutil.DetectVars()
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// Commit at HEAD
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head, err := repo.Head()
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if err != nil {
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return errors.Wrap(err, "getting repository HEAD")
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}
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hash := head.Hash()
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m.Environment[backend.GitHead] = hash.String()
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commit, commitErr := repo.CommitObject(hash)
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if commitErr != nil {
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return errors.Wrap(commitErr, "getting HEAD commit info")
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}
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// If in detached head, will be "HEAD", and fallback to use value from CI/CD system if possible.
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// Otherwise, the value will be like "refs/heads/master".
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headName := head.Name().String()
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if headName == "HEAD" && ciVars.BranchName != "" {
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headName = ciVars.BranchName
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}
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if headName != "HEAD" {
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m.Environment[backend.GitHeadName] = headName
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}
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// If there is no message set manually, default to the Git commit's title.
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msg := strings.TrimSpace(commit.Message)
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if msg == "" && ciVars.CommitMessage != "" {
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msg = ciVars.CommitMessage
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}
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if m.Message == "" {
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m.Message = gitCommitTitle(msg)
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}
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// Store committer and author information.
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m.Environment[backend.GitCommitter] = commit.Committer.Name
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m.Environment[backend.GitCommitterEmail] = commit.Committer.Email
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m.Environment[backend.GitAuthor] = commit.Author.Name
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m.Environment[backend.GitAuthorEmail] = commit.Author.Email
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// If the worktree is dirty, set a bit, as this could be a mistake.
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isDirty, err := isGitWorkTreeDirty(repoRoot)
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if err != nil {
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return errors.Wrapf(err, "checking git worktree dirty state")
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}
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m.Environment[backend.GitDirty] = strconv.FormatBool(isDirty)
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return nil
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}
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// gitCommitTitle turns a commit message into its title, simply by taking the first line.
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func gitCommitTitle(s string) string {
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if ixCR := strings.Index(s, "\r"); ixCR != -1 {
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s = s[:ixCR]
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}
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if ixLF := strings.Index(s, "\n"); ixLF != -1 {
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s = s[:ixLF]
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}
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return s
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}
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// addCIMetadataToEnvironment populates the environment metadata bag with CI/CD-related values.
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func addCIMetadataToEnvironment(env map[string]string) {
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// If CI variables have been set specifically for Pulumi in the environment,
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// use that in preference to attempting to automatically detect the CI system.
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// This allows Pulumi to work with any CI system with appropriate configuration,
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// rather than requiring explicit support for each one.
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if os.Getenv("PULUMI_CI_SYSTEM") != "" {
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env[backend.CISystem] = os.Getenv("PULUMI_CI_SYSTEM")
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// Set whatever variables we have available in the environment
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|
if buildID := os.Getenv("PULUMI_CI_BUILD_ID"); buildID != "" {
|
|
env[backend.CIBuildID] = buildID
|
|
}
|
|
if buildType := os.Getenv("PULUMI_CI_BUILD_TYPE"); buildType != "" {
|
|
env[backend.CIBuildType] = buildType
|
|
}
|
|
if buildURL := os.Getenv("PULUMI_CI_BUILD_URL"); buildURL != "" {
|
|
env[backend.CIBuildURL] = buildURL
|
|
}
|
|
|
|
// Pass pull request-specific vales as appropriate.
|
|
if sha := os.Getenv("PULUMI_CI_PULL_REQUEST_SHA"); sha != "" {
|
|
env[backend.CIPRHeadSHA] = sha
|
|
}
|
|
|
|
// Don't proceed with automatic CI detection
|
|
return
|
|
}
|
|
|
|
// If CI variables were not set in the environment, try to detect which
|
|
// CI system we are inside and set variables
|
|
vars := ciutil.DetectVars()
|
|
if vars.Name != "" {
|
|
env[backend.CISystem] = string(vars.Name)
|
|
env[backend.CIBuildID] = vars.BuildID
|
|
env[backend.CIBuildType] = vars.BuildType
|
|
env[backend.CIPRHeadSHA] = vars.SHA
|
|
}
|
|
}
|
|
|
|
type cancellationScope struct {
|
|
context *cancel.Context
|
|
sigint chan os.Signal
|
|
done chan bool
|
|
}
|
|
|
|
func (s *cancellationScope) Context() *cancel.Context {
|
|
return s.context
|
|
}
|
|
|
|
func (s *cancellationScope) Close() {
|
|
signal.Stop(s.sigint)
|
|
close(s.sigint)
|
|
<-s.done
|
|
}
|
|
|
|
type cancellationScopeSource int
|
|
|
|
var cancellationScopes = backend.CancellationScopeSource(cancellationScopeSource(0))
|
|
|
|
func (cancellationScopeSource) NewScope(events chan<- engine.Event, isPreview bool) backend.CancellationScope {
|
|
cancelContext, cancelSource := cancel.NewContext(context.Background())
|
|
|
|
c := &cancellationScope{
|
|
context: cancelContext,
|
|
sigint: make(chan os.Signal),
|
|
done: make(chan bool),
|
|
}
|
|
|
|
go func() {
|
|
for range c.sigint {
|
|
// If we haven't yet received a SIGINT, call the cancellation func. Otherwise call the termination
|
|
// func.
|
|
if cancelContext.CancelErr() == nil {
|
|
message := "^C received; cancelling. If you would like to terminate immediately, press ^C again.\n"
|
|
if !isPreview {
|
|
message += colors.BrightRed + "Note that terminating immediately may lead to orphaned resources " +
|
|
"and other inconsistencies.\n" + colors.Reset
|
|
}
|
|
events <- engine.Event{
|
|
Type: engine.StdoutColorEvent,
|
|
Payload: engine.StdoutEventPayload{
|
|
Message: message,
|
|
Color: colors.Always,
|
|
},
|
|
}
|
|
|
|
cancelSource.Cancel()
|
|
} else {
|
|
message := colors.BrightRed + "^C received; terminating" + colors.Reset
|
|
events <- engine.Event{
|
|
Type: engine.StdoutColorEvent,
|
|
Payload: engine.StdoutEventPayload{
|
|
Message: message,
|
|
Color: colors.Always,
|
|
},
|
|
}
|
|
|
|
cancelSource.Terminate()
|
|
}
|
|
}
|
|
close(c.done)
|
|
}()
|
|
signal.Notify(c.sigint, os.Interrupt)
|
|
|
|
return c
|
|
}
|
|
|
|
// printJSON simply prints out some object, formatted as JSON, using standard indentation.
|
|
func printJSON(v interface{}) error {
|
|
out, err := json.MarshalIndent(v, "", " ")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Println(string(out))
|
|
return nil
|
|
}
|
|
|
|
// updateFlagsToOptions ensures that the given update flags represent a valid combination. If so, an UpdateOptions
|
|
// is returned with a nil-error; otherwise, the non-nil error contains information about why the combination is invalid.
|
|
func updateFlagsToOptions(interactive, skipPreview, yes bool) (backend.UpdateOptions, error) {
|
|
if !interactive && !yes {
|
|
return backend.UpdateOptions{},
|
|
errors.New("--yes must be passed in non-interactive mode")
|
|
}
|
|
|
|
return backend.UpdateOptions{
|
|
AutoApprove: yes,
|
|
SkipPreview: skipPreview,
|
|
}, nil
|
|
}
|