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cli: Migrate Terraform UI hook to command views 

Move the code which renders Terraform hook callbacks as UI into the
views package, backed by a views.View instead of a cli.Ui. Update test
setup accordingly.

To allow commands to control this hook, we add a hooks member on the
backend Operation struct. This supersedes the hooks in the Terraform
context, which is not directly controlled by the command logic.

This commit should not change how Terraform works, and is refactoring in
preparation for more changes which move UI code out of the backend.
This commit is contained in:
Alisdair McDiarmid 2021-02-11 20:52:10 -05:00
parent fa774dafc0
commit a7b7cd29fc
15 changed files with 177 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
backend/backend.go
View File

@ -183,6 +183,10 @@ type Operation struct {
// configuration from ConfigDir.
ConfigLoader *configload.Loader
// Hooks can be used to perform actions triggered by various events during
// the operation's lifecycle.
Hooks []terraform.Hook
// Plan is a plan that was passed as an argument. This is valid for
// plan and apply arguments but may not work for all backends.
PlanFile *planfile.Reader

7
backend/local/backend_apply.go
View File

@ -40,12 +40,7 @@ func (b *Local) opApply(
}
stateHook := new(StateHook)
if b.ContextOpts == nil {
b.ContextOpts = new(terraform.ContextOpts)
}
old := b.ContextOpts.Hooks
defer func() { b.ContextOpts.Hooks = old }()
b.ContextOpts.Hooks = append(b.ContextOpts.Hooks, stateHook)
op.Hooks = append(op.Hooks, stateHook)
// Get our context
tfCtx, _, opState, contextDiags := b.context(op)

1
backend/local/backend_local.go
View File

@ -77,6 +77,7 @@ func (b *Local) context(op *backend.Operation) (*terraform.Context, *configload.
opts.Destroy = op.Destroy
opts.Targets = op.Targets
opts.UIInput = op.UIIn
opts.Hooks = op.Hooks
opts.SkipRefresh = op.Type != backend.OperationTypeRefresh && !op.PlanRefresh
if opts.SkipRefresh {

3
command/apply.go
View File

@ -8,6 +8,7 @@ import (
"github.com/hashicorp/terraform/command/arguments"
"github.com/hashicorp/terraform/command/views"
"github.com/hashicorp/terraform/plans/planfile"
"github.com/hashicorp/terraform/terraform"
"github.com/hashicorp/terraform/tfdiags"
)
@ -110,7 +111,6 @@ func (c *ApplyCommand) Run(args []string) int {
// Set up our count hook that keeps track of resource changes
countHook := new(CountHook)
c.ExtraHooks = append(c.ExtraHooks, countHook)
// Load the backend
var be backend.Enhanced
@ -171,6 +171,7 @@ func (c *ApplyCommand) Run(args []string) int {
opReq.AutoApprove = autoApprove
opReq.ConfigDir = configPath
opReq.Destroy = c.Destroy
opReq.Hooks = []terraform.Hook{countHook, c.uiHook()}
opReq.PlanFile = planFile
opReq.PlanRefresh = refresh
opReq.ShowDiagnostics = c.showDiagnostics

2
command/apply_test.go
View File

@ -941,10 +941,12 @@ func TestApply_planNoModuleFiles(t *testing.T) {
p := applyFixtureProvider()
planPath := applyFixturePlanFile(t)
view, _ := testView(t)
apply := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: new(cli.MockUi),
View: view,
},
}
args := []string{

1
command/import.go
View File

@ -189,6 +189,7 @@ func (c *ImportCommand) Run(args []string) int {
c.showDiagnostics(diags)
return 1
}
opReq.Hooks = []terraform.Hook{c.uiHook()}
{
var moreDiags tfdiags.Diagnostics
opReq.Variables, moreDiags = c.collectVariableValues()

38
command/import_test.go
View File

@ -24,10 +24,12 @@ func TestImport(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -77,10 +79,12 @@ func TestImport_providerConfig(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -170,9 +174,11 @@ func TestImport_remoteState(t *testing.T) {
// init our backend
ui := cli.NewMockUi()
view, _ := testView(t)
m := Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
View: view,
ProviderSource: providerSource,
}
@ -192,6 +198,7 @@ func TestImport_remoteState(t *testing.T) {
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -280,9 +287,11 @@ func TestImport_initializationErrorShouldUnlock(t *testing.T) {
// init our backend
ui := cli.NewMockUi()
view, _ := testView(t)
m := Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
View: view,
ProviderSource: providerSource,
}
@ -305,6 +314,7 @@ func TestImport_initializationErrorShouldUnlock(t *testing.T) {
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -339,10 +349,12 @@ func TestImport_providerConfigWithVar(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -417,10 +429,12 @@ func TestImport_providerConfigWithDataSource(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -480,10 +494,12 @@ func TestImport_providerConfigWithVarDefault(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -557,10 +573,12 @@ func TestImport_providerConfigWithVarFile(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -635,10 +653,12 @@ func TestImport_allowMissingResourceConfig(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -690,10 +710,12 @@ func TestImport_emptyConfig(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -720,10 +742,12 @@ func TestImport_missingResourceConfig(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -750,10 +774,12 @@ func TestImport_missingModuleConfig(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -801,9 +827,11 @@ func TestImportModuleVarFile(t *testing.T) {
// init to install the module
ui := new(cli.MockUi)
view, _ := testView(t)
m := Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
View: view,
ProviderSource: providerSource,
}
@ -820,6 +848,7 @@ func TestImportModuleVarFile(t *testing.T) {
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
@ -873,9 +902,11 @@ func TestImportModuleInputVariableEvaluation(t *testing.T) {
// init to install the module
ui := new(cli.MockUi)
view, _ := testView(t)
m := Meta{
testingOverrides: metaOverridesForProvider(testProvider()),
Ui: ui,
View: view,
ProviderSource: providerSource,
}
@ -892,6 +923,7 @@ func TestImportModuleInputVariableEvaluation(t *testing.T) {
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
@ -912,10 +944,12 @@ func TestImport_dataResource(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -942,10 +976,12 @@ func TestImport_invalidResourceAddr(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -972,10 +1008,12 @@ func TestImport_targetIsModule(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &ImportCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}

22
command/meta.go
View File

@ -21,6 +21,7 @@ import (
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/backend/local"
"github.com/hashicorp/terraform/command/arguments"
"github.com/hashicorp/terraform/command/format"
"github.com/hashicorp/terraform/command/views"
"github.com/hashicorp/terraform/command/webbrowser"
@ -69,9 +70,6 @@ type Meta struct {
GlobalPluginDirs []string // Additional paths to search for plugins
Ui cli.Ui // Ui for output
// ExtraHooks are extra hooks to add to the context.
ExtraHooks []terraform.Hook
// Services provides access to remote endpoint information for
// "terraform-native' services running at a specific user-facing hostname.
Services *disco.Disco
@ -434,8 +432,6 @@ func (m *Meta) contextOpts() (*terraform.ContextOpts, error) {
}
var opts terraform.ContextOpts
opts.Hooks = []terraform.Hook{m.uiHook()}
opts.Hooks = append(opts.Hooks, m.ExtraHooks...)
opts.Targets = m.targets
opts.UIInput = m.UIInput()
@ -621,15 +617,21 @@ func (m *Meta) process(args []string) []string {
},
}
// Reconfigure the view. This is necessary for commands which use both
// views.View and cli.Ui during the migration phase.
if m.View != nil {
m.View.Configure(&arguments.View{
CompactWarnings: m.compactWarnings,
NoColor: !m.Color,
})
}
return args
}
// uiHook returns the UiHook to use with the context.
func (m *Meta) uiHook() *UiHook {
return &UiHook{
Colorize: m.Colorize(),
Ui: m.Ui,
}
func (m *Meta) uiHook() *views.UiHook {
return views.NewUiHook(m.View)
}
// confirm asks a yes/no confirmation.

2
command/plan.go
View File

@ -7,6 +7,7 @@ import (
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/configs"
"github.com/hashicorp/terraform/plans"
"github.com/hashicorp/terraform/terraform"
"github.com/hashicorp/terraform/tfdiags"
)
@ -82,6 +83,7 @@ func (c *PlanCommand) Run(args []string) int {
opReq := c.Operation(b)
opReq.ConfigDir = configPath
opReq.Destroy = destroy
opReq.Hooks = []terraform.Hook{c.uiHook()}
opReq.PlanOutPath = outPath
opReq.PlanRefresh = refresh
opReq.ShowDiagnostics = c.showDiagnostics

52
command/plan_test.go
View File

@ -32,10 +32,12 @@ func TestPlan(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -59,10 +61,12 @@ func TestPlan_lockedState(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -85,10 +89,12 @@ func TestPlan_plan(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -126,10 +132,12 @@ func TestPlan_destroy(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -158,10 +166,12 @@ func TestPlan_noState(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -193,10 +203,12 @@ func TestPlan_outPath(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -246,10 +258,12 @@ func TestPlan_outPathNoChange(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -324,10 +338,12 @@ func TestPlan_outBackend(t *testing.T) {
}
}
ui := cli.NewMockUi()
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -376,10 +392,12 @@ func TestPlan_refreshFalse(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -407,10 +425,12 @@ func TestPlan_state(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -450,10 +470,12 @@ func TestPlan_stateDefault(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -505,10 +527,12 @@ func TestPlan_validate(t *testing.T) {
}
}
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -532,10 +556,12 @@ func TestPlan_vars(t *testing.T) {
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -577,10 +603,12 @@ func TestPlan_varsUnset(t *testing.T) {
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -640,10 +668,12 @@ func TestPlan_providerArgumentUnset(t *testing.T) {
},
}
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -667,10 +697,12 @@ func TestPlan_varFile(t *testing.T) {
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -707,10 +739,12 @@ func TestPlan_varFileDefault(t *testing.T) {
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -745,10 +779,12 @@ func TestPlan_varFileWithDecls(t *testing.T) {
p := planVarsFixtureProvider()
ui := cli.NewMockUi()
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -773,10 +809,12 @@ func TestPlan_detailedExitcode(t *testing.T) {
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -794,10 +832,12 @@ func TestPlan_detailedExitcode_emptyDiff(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -819,10 +859,12 @@ func TestPlan_shutdown(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
ShutdownCh: shutdownCh,
},
}
@ -884,10 +926,12 @@ func TestPlan_init_required(t *testing.T) {
defer testChdir(t, td)()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
// Running plan without setting testingOverrides is similar to plan without init
Ui: ui,
Ui: ui,
View: view,
},
}
@ -927,10 +971,12 @@ func TestPlan_targeted(t *testing.T) {
}
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
@ -961,9 +1007,11 @@ func TestPlan_targetFlagsDiags(t *testing.T) {
defer testChdir(t, td)()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
Ui: ui,
Ui: ui,
View: view,
},
}

2
command/refresh.go
View File

@ -7,6 +7,7 @@ import (
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/command/arguments"
"github.com/hashicorp/terraform/command/views"
"github.com/hashicorp/terraform/terraform"
"github.com/hashicorp/terraform/tfdiags"
)
@ -75,6 +76,7 @@ func (c *RefreshCommand) Run(args []string) int {
// Build the operation
opReq := c.Operation(b)
opReq.ConfigDir = configPath
opReq.Hooks = []terraform.Hook{c.uiHook()}
opReq.ShowDiagnostics = c.showDiagnostics
opReq.Type = backend.OperationTypeRefresh

4
command/refresh_test.go
View File

@ -791,7 +791,7 @@ func TestRefresh_targeted(t *testing.T) {
}
ui := new(cli.MockUi)
view, _ := testView(t)
view, done := testView(t)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
@ -808,7 +808,7 @@ func TestRefresh_targeted(t *testing.T) {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
got := ui.OutputWriter.String()
got := done(t).Stdout()
if want := "test_instance.foo: Refreshing"; !strings.Contains(got, want) {
t.Fatalf("expected output to contain %q, got:\n%s", want, got)
}

2
command/show_test.go
View File

@ -255,9 +255,11 @@ func TestShow_json_output(t *testing.T) {
p := showFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
m := Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
ProviderSource: providerSource,
}

90
command/hook_ui.go → command/views/hook_ui.go
View File

@ -1,4 +1,4 @@
package command
package views
import (
"bufio"
@ -9,8 +9,6 @@ import (
"time"
"unicode"
"github.com/mitchellh/cli"
"github.com/mitchellh/colorstring"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
@ -24,17 +22,24 @@ import (
const defaultPeriodicUiTimer = 10 * time.Second
const maxIdLen = 80
func NewUiHook(view *View) *UiHook {
return &UiHook{
view: view,
periodicUiTimer: defaultPeriodicUiTimer,
resources: make(map[string]uiResourceState),
}
}
type UiHook struct {
terraform.NilHook
Colorize *colorstring.Colorize
Ui cli.Ui
PeriodicUiTimer time.Duration
view *View
viewLock sync.Mutex
l sync.Mutex
once sync.Once
resources map[string]uiResourceState
ui cli.Ui
periodicUiTimer time.Duration
resources map[string]uiResourceState
resourcesLock sync.Mutex
}
var _ terraform.Hook = (*UiHook)(nil)
@ -63,8 +68,6 @@ const (
)
func (h *UiHook) PreApply(addr addrs.AbsResourceInstance, gen states.Generation, action plans.Action, priorState, plannedNewState cty.Value) (terraform.HookAction, error) {
h.once.Do(h.init)
dispAddr := addr.String()
if gen != states.CurrentGen {
dispAddr = fmt.Sprintf("%s (%s)", dispAddr, gen)
@ -89,7 +92,7 @@ func (h *UiHook) PreApply(addr addrs.AbsResourceInstance, gen states.Generation,
default:
// We don't expect any other actions in here, so anything else is a
// bug in the caller but we'll ignore it in order to be robust.
h.ui.Output(fmt.Sprintf("(Unknown action %s for %s)", action, dispAddr))
h.println(fmt.Sprintf("(Unknown action %s for %s)", action, dispAddr))
return terraform.HookActionContinue, nil
}
@ -103,7 +106,7 @@ func (h *UiHook) PreApply(addr addrs.AbsResourceInstance, gen states.Generation,
idValue = ""
}
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: %s%s[reset]",
dispAddr,
operation,
@ -121,9 +124,9 @@ func (h *UiHook) PreApply(addr addrs.AbsResourceInstance, gen states.Generation,
done: make(chan struct{}),
}
h.l.Lock()
h.resourcesLock.Lock()
h.resources[key] = uiState
h.l.Unlock()
h.resourcesLock.Unlock()
// Start goroutine that shows progress
go h.stillApplying(uiState)
@ -138,7 +141,7 @@ func (h *UiHook) stillApplying(state uiResourceState) {
case <-state.DoneCh:
return
case <-time.After(h.PeriodicUiTimer):
case <-time.After(h.periodicUiTimer):
// Timer up, show status
}
@ -161,7 +164,7 @@ func (h *UiHook) stillApplying(state uiResourceState) {
idSuffix = fmt.Sprintf("%s=%s, ", state.IDKey, truncateId(state.IDValue, maxIdLen))
}
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: %s [%s%s elapsed][reset]",
state.DispAddr,
msg,
@ -172,17 +175,16 @@ func (h *UiHook) stillApplying(state uiResourceState) {
}
func (h *UiHook) PostApply(addr addrs.AbsResourceInstance, gen states.Generation, newState cty.Value, applyerr error) (terraform.HookAction, error) {
id := addr.String()
h.l.Lock()
h.resourcesLock.Lock()
state := h.resources[id]
if state.DoneCh != nil {
close(state.DoneCh)
}
delete(h.resources, id)
h.l.Unlock()
h.resourcesLock.Unlock()
var stateIdSuffix string
if k, v := format.ObjectValueID(newState); k != "" && v != "" {
@ -208,21 +210,17 @@ func (h *UiHook) PostApply(addr addrs.AbsResourceInstance, gen states.Generation
return terraform.HookActionContinue, nil
}
colorized := h.Colorize.Color(fmt.Sprintf(
colorized := h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: %s after %s%s[reset]",
addr, msg, time.Now().Round(time.Second).Sub(state.Start), stateIdSuffix))
h.ui.Output(colorized)
h.println(colorized)
return terraform.HookActionContinue, nil
}
func (h *UiHook) PreDiff(addr addrs.AbsResourceInstance, gen states.Generation, priorState, proposedNewState cty.Value) (terraform.HookAction, error) {
return terraform.HookActionContinue, nil
}
func (h *UiHook) PreProvisionInstanceStep(addr addrs.AbsResourceInstance, typeName string) (terraform.HookAction, error) {
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: Provisioning with '%s'...[reset]",
addr, typeName,
)))
@ -231,7 +229,7 @@ func (h *UiHook) PreProvisionInstanceStep(addr addrs.AbsResourceInstance, typeNa
func (h *UiHook) ProvisionOutput(addr addrs.AbsResourceInstance, typeName string, msg string) {
var buf bytes.Buffer
buf.WriteString(h.Colorize.Color("[reset]"))
buf.WriteString(h.view.colorize.Color("[reset]"))
prefix := fmt.Sprintf("%s (%s): ", addr, typeName)
s := bufio.NewScanner(strings.NewReader(msg))
@ -243,27 +241,23 @@ func (h *UiHook) ProvisionOutput(addr addrs.AbsResourceInstance, typeName string
}
}
h.ui.Output(strings.TrimSpace(buf.String()))
h.println(strings.TrimSpace(buf.String()))
}
func (h *UiHook) PreRefresh(addr addrs.AbsResourceInstance, gen states.Generation, priorState cty.Value) (terraform.HookAction, error) {
h.once.Do(h.init)
var stateIdSuffix string
if k, v := format.ObjectValueID(priorState); k != "" && v != "" {
stateIdSuffix = fmt.Sprintf(" [%s=%s]", k, v)
}
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: Refreshing state...%s",
addr, stateIdSuffix)))
return terraform.HookActionContinue, nil
}
func (h *UiHook) PreImportState(addr addrs.AbsResourceInstance, importID string) (terraform.HookAction, error) {
h.once.Do(h.init)
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold]%s: Importing from ID %q...",
addr, importID,
)))
@ -271,12 +265,10 @@ func (h *UiHook) PreImportState(addr addrs.AbsResourceInstance, importID string)
}
func (h *UiHook) PostImportState(addr addrs.AbsResourceInstance, imported []providers.ImportedResource) (terraform.HookAction, error) {
h.once.Do(h.init)
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][bold][green]%s: Import prepared!", addr)))
for _, s := range imported {
h.ui.Output(h.Colorize.Color(fmt.Sprintf(
h.println(h.view.colorize.Color(fmt.Sprintf(
"[reset][green] Prepared %s for import",
s.TypeName,
)))
@ -285,19 +277,11 @@ func (h *UiHook) PostImportState(addr addrs.AbsResourceInstance, imported []prov
return terraform.HookActionContinue, nil
}
func (h *UiHook) init() {
if h.Colorize == nil {
panic("colorize not given")
}
if h.PeriodicUiTimer == 0 {
h.PeriodicUiTimer = defaultPeriodicUiTimer
}
h.resources = make(map[string]uiResourceState)
// Wrap the ui so that it is safe for concurrency regardless of the
// underlying reader/writer that is in place.
h.ui = &cli.ConcurrentUi{Ui: h.Ui}
// Wrap calls to the view so that concurrent calls do not interleave println.
func (h *UiHook) println(s string) {
h.viewLock.Lock()
defer h.viewLock.Unlock()
h.view.streams.Println(s)
}
// scanLines is basically copied from the Go standard library except

61
command/hook_ui_test.go → command/views/hook_ui_test.go
View File

@ -1,4 +1,4 @@
package command
package views
import (
"fmt"
@ -6,28 +6,20 @@ import (
"testing"
"time"
"github.com/mitchellh/cli"
"github.com/mitchellh/colorstring"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/internal/terminal"
"github.com/hashicorp/terraform/plans"
"github.com/hashicorp/terraform/states"
"github.com/hashicorp/terraform/terraform"
)
func TestUiHookPreApply_periodicTimer(t *testing.T) {
ui := cli.NewMockUi()
h := &UiHook{
Colorize: &colorstring.Colorize{
Colors: colorstring.DefaultColors,
Disable: true,
Reset: true,
},
Ui: ui,
PeriodicUiTimer: 1 * time.Second,
}
h.init()
streams, done := terminal.StreamsForTesting(t)
view := NewView(streams)
h := NewUiHook(view)
h.periodicUiTimer = 1 * time.Second
h.resources = map[string]uiResourceState{
"data.aws_availability_zones.available": uiResourceState{
Op: uiResourceDestroy,
@ -75,29 +67,23 @@ data.aws_availability_zones.available: Still destroying... [id=2017-03-05 10:56:
data.aws_availability_zones.available: Still destroying... [id=2017-03-05 10:56:59.298784526 +0000 UTC, 2s elapsed]
data.aws_availability_zones.available: Still destroying... [id=2017-03-05 10:56:59.298784526 +0000 UTC, 3s elapsed]
`
output := ui.OutputWriter.String()
result := done(t)
output := result.Stdout()
if output != expectedOutput {
t.Fatalf("Output didn't match.\nExpected: %q\nGiven: %q", expectedOutput, output)
}
expectedErrOutput := ""
errOutput := ui.ErrorWriter.String()
errOutput := result.Stderr()
if errOutput != expectedErrOutput {
t.Fatalf("Error output didn't match.\nExpected: %q\nGiven: %q", expectedErrOutput, errOutput)
}
}
func TestUiHookPreApply_destroy(t *testing.T) {
ui := cli.NewMockUi()
h := &UiHook{
Colorize: &colorstring.Colorize{
Colors: colorstring.DefaultColors,
Disable: true,
Reset: true,
},
Ui: ui,
}
h.init()
streams, done := terminal.StreamsForTesting(t)
view := NewView(streams)
h := NewUiHook(view)
h.resources = map[string]uiResourceState{
"data.aws_availability_zones.available": uiResourceState{
Op: uiResourceDestroy,
@ -138,30 +124,24 @@ func TestUiHookPreApply_destroy(t *testing.T) {
close(uiState.DoneCh)
<-uiState.done
result := done(t)
expectedOutput := "data.aws_availability_zones.available: Destroying... [id=2017-03-05 10:56:59.298784526 +0000 UTC]\n"
output := ui.OutputWriter.String()
output := result.Stdout()
if output != expectedOutput {
t.Fatalf("Output didn't match.\nExpected: %q\nGiven: %q", expectedOutput, output)
}
expectedErrOutput := ""
errOutput := ui.ErrorWriter.String()
errOutput := result.Stderr()
if errOutput != expectedErrOutput {
t.Fatalf("Error output didn't match.\nExpected: %q\nGiven: %q", expectedErrOutput, errOutput)
}
}
func TestUiHookPostApply_emptyState(t *testing.T) {
ui := cli.NewMockUi()
h := &UiHook{
Colorize: &colorstring.Colorize{
Colors: colorstring.DefaultColors,
Disable: true,
Reset: true,
},
Ui: ui,
}
h.init()
streams, done := terminal.StreamsForTesting(t)
view := NewView(streams)
h := NewUiHook(view)
h.resources = map[string]uiResourceState{
"data.google_compute_zones.available": uiResourceState{
Op: uiResourceDestroy,
@ -187,15 +167,16 @@ func TestUiHookPostApply_emptyState(t *testing.T) {
if action != terraform.HookActionContinue {
t.Fatalf("Expected hook to continue, given: %#v", action)
}
result := done(t)
expectedRegexp := "^data.google_compute_zones.available: Destruction complete after -?[a-z0-9µ.]+\n$"
output := ui.OutputWriter.String()
output := result.Stdout()
if matched, _ := regexp.MatchString(expectedRegexp, output); !matched {
t.Fatalf("Output didn't match regexp.\nExpected: %q\nGiven: %q", expectedRegexp, output)
}
expectedErrOutput := ""
errOutput := ui.ErrorWriter.String()
errOutput := result.Stderr()
if errOutput != expectedErrOutput {
t.Fatalf("Error output didn't match.\nExpected: %q\nGiven: %q", expectedErrOutput, errOutput)
}