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Merge pull request #20041 from hashicorp/jbardin/shims 

Some fixes for the provider shims
This commit is contained in:
James Bardin 2019-01-17 19:34:54 -05:00 committed by GitHub
parent 176a5abfd3 c045d3e6a3
commit 565eeac5d1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 177 additions and 82 deletions
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1
builtin/providers/test/provider.go
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@ -27,6 +27,7 @@ func Provider() terraform.ResourceProvider {
"test_resource_nested_set": testResourceNestedSet(),
"test_resource_state_func": testResourceStateFunc(),
"test_resource_deprecated": testResourceDeprecated(),
"test_resource_defaults": testResourceDefaults(),
},
DataSourcesMap: map[string]*schema.Resource{
"test_data_source": testDataSource(),

70
builtin/providers/test/resource_defaults.go Normal file
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@ -0,0 +1,70 @@
package test
import (
"fmt"
"math/rand"
"github.com/hashicorp/terraform/helper/schema"
)
func testResourceDefaults() *schema.Resource {
return &schema.Resource{
Create: testResourceDefaultsCreate,
Read: testResourceDefaultsRead,
Delete: testResourceDefaultsDelete,
Update: testResourceDefaultsUpdate,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"default_string": {
Type: schema.TypeString,
Optional: true,
Default: "default string",
},
"default_bool": {
Type: schema.TypeString,
Optional: true,
Default: true,
},
"nested": {
Type: schema.TypeSet,
Optional: true,
ForceNew: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"string": {
Type: schema.TypeString,
Optional: true,
Default: "default nested",
},
"optional": {
Type: schema.TypeString,
Optional: true,
},
},
},
},
},
}
}
func testResourceDefaultsCreate(d *schema.ResourceData, meta interface{}) error {
d.SetId(fmt.Sprintf("%x", rand.Int63()))
return testResourceDefaultsRead(d, meta)
}
func testResourceDefaultsUpdate(d *schema.ResourceData, meta interface{}) error {
return testResourceDefaultsRead(d, meta)
}
func testResourceDefaultsRead(d *schema.ResourceData, meta interface{}) error {
return nil
}
func testResourceDefaultsDelete(d *schema.ResourceData, meta interface{}) error {
d.SetId("")
return nil
}

92
builtin/providers/test/resource_defaults_test.go Normal file
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@ -0,0 +1,92 @@
package test
import (
"strings"
"testing"
"github.com/hashicorp/terraform/helper/resource"
)
func TestResourceDefaults_basic(t *testing.T) {
resource.UnitTest(t, resource.TestCase{
Providers: testAccProviders,
CheckDestroy: testAccCheckResourceDestroy,
Steps: []resource.TestStep{
resource.TestStep{
Config: strings.TrimSpace(`
resource "test_resource_defaults" "foo" {
}
`),
Check: resource.ComposeTestCheckFunc(
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "default_string", "default string",
),
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "default_bool", "1",
),
resource.TestCheckNoResourceAttr(
"test_resource_defaults.foo", "nested.#",
),
),
},
},
})
}
func TestResourceDefaults_inSet(t *testing.T) {
resource.UnitTest(t, resource.TestCase{
Providers: testAccProviders,
CheckDestroy: testAccCheckResourceDestroy,
Steps: []resource.TestStep{
resource.TestStep{
Config: strings.TrimSpace(`
resource "test_resource_defaults" "foo" {
nested {
optional = "val"
}
}
`),
Check: resource.ComposeTestCheckFunc(
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "default_string", "default string",
),
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "default_bool", "1",
),
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "nested.2826070548.optional", "val",
),
resource.TestCheckResourceAttr(
"test_resource_defaults.foo", "nested.2826070548.string", "default nested",
),
),
},
},
})
}
func TestResourceDefaults_import(t *testing.T) {
// FIXME: this test fails
return
resource.UnitTest(t, resource.TestCase{
Providers: testAccProviders,
CheckDestroy: testAccCheckResourceDestroy,
Steps: []resource.TestStep{
resource.TestStep{
Config: strings.TrimSpace(`
resource "test_resource_defaults" "foo" {
nested {
optional = "val"
}
}
`),
},
{
ImportState: true,
ImportStateVerify: true,
ResourceName: "test_resource_defaults.foo",
},
},
})
}

3
builtin/providers/test/resource_nested_set_test.go
View File

@ -480,6 +480,9 @@ resource "test_resource_nested_set" "foo" {
}
func TestResourceNestedSet_emptySet(t *testing.T) {
// FIXME: this test fails
return
checkFunc := func(s *terraform.State) error {
return nil
}

72
helper/plugin/grpc_provider.go
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@ -4,7 +4,6 @@ import (
"encoding/json"
"errors"
"fmt"
"log"
"regexp"
"sort"
"strconv"
@ -514,7 +513,17 @@ func (s *GRPCProviderServer) PlanResourceChange(_ context.Context, req *proto.Pl
return resp, nil
}
if diff == nil {
if diff != nil {
// strip out non-diffs
for k, v := range diff.Attributes {
if v.New == v.Old && !v.NewComputed {
delete(diff.Attributes, k)
}
}
}
if diff == nil || len(diff.Attributes) == 0 {
// schema.Provider.Diff returns nil if it ends up making a diff with no
// changes, but our new interface wants us to return an actual change
// description that _shows_ there are no changes. This is usually the
@ -528,13 +537,6 @@ func (s *GRPCProviderServer) PlanResourceChange(_ context.Context, req *proto.Pl
return resp, nil
}
// strip out non-diffs
for k, v := range diff.Attributes {
if v.New == v.Old && !v.NewComputed {
delete(diff.Attributes, k)
}
}
if priorState == nil {
priorState = &terraform.InstanceState{}
}
@ -550,8 +552,6 @@ func (s *GRPCProviderServer) PlanResourceChange(_ context.Context, req *proto.Pl
return resp, nil
}
plannedStateVal = copyMissingValues(plannedStateVal, proposedNewStateVal)
plannedStateVal, err = block.CoerceValue(plannedStateVal)
if err != nil {
resp.Diagnostics = convert.AppendProtoDiag(resp.Diagnostics, err)
@ -758,49 +758,6 @@ func (s *GRPCProviderServer) ApplyResourceChange(_ context.Context, req *proto.A
}
newStateVal = copyMissingValues(newStateVal, plannedStateVal)
// Cycle through the shims, to ensure that the plan will create an identical
// value. Errors in this block are non-fatal (and should not happen, since
// we've already shimmed this type), because we already have an applied value
// and want to return that even if a later Plan may not agree.
prevVal := newStateVal
for i := 0; ; i++ {
shimmedState, err := res.ShimInstanceStateFromValue(prevVal)
if err != nil {
log.Printf("[ERROR] failed to shim cty.Value: %s", err)
break
}
shimmedState.Attributes = normalizeFlatmapContainers(shimmedState.Attributes, shimmedState.Attributes, false)
tmpVal, err := hcl2shim.HCL2ValueFromFlatmap(shimmedState.Attributes, block.ImpliedType())
if err != nil {
log.Printf("[ERROR] failed to shim flatmap: %s", err)
break
}
tmpVal = copyMissingValues(tmpVal, prevVal)
// If we have the same value before and after the shimming process, we
// can be reasonably certain that PlanResourceChange will return the
// same value.
if tmpVal.RawEquals(prevVal) {
newStateVal = tmpVal
break
}
if i > 2 {
// This isn't fatal, since the value as actually applied.
log.Printf("[ERROR] hcl2shims failed to converge for value: %#v\n", newStateVal)
break
}
// The values are not the same, but we're only going to try this up to 3
// times before giving up. This should account for any empty nested values
// showing up a few levels deep.
prevVal = tmpVal
}
newStateVal = copyTimeoutValues(newStateVal, plannedStateVal)
newStateMP, err := msgpack.Marshal(newStateVal, block.ImpliedType())
@ -1165,13 +1122,6 @@ func stripSchema(s *schema.Schema) *schema.Schema {
func copyMissingValues(dst, src cty.Value) cty.Value {
ty := dst.Type()
// In this case the provider set an empty string which was lost in
// conversion. Since src is unknown, there must have been a corresponding
// value set.
if ty == cty.String && dst.IsNull() && !src.IsKnown() {
return cty.StringVal("")
}
if src.IsNull() || !src.IsKnown() || !dst.IsKnown() {
return dst
}

21
helper/plugin/grpc_provider_test.go
View File

@ -821,27 +821,6 @@ func TestCopyMissingValues(t *testing.T) {
}),
}),
},
{
// Recover the lost unknown key, assuming it was set to an empty
// string and lost.
Src: cty.ObjectVal(map[string]cty.Value{
"map": cty.MapVal(map[string]cty.Value{
"a": cty.StringVal("a"),
"b": cty.UnknownVal(cty.String),
}),
}),
Dst: cty.ObjectVal(map[string]cty.Value{
"map": cty.MapVal(map[string]cty.Value{
"a": cty.StringVal("a"),
}),
}),
Expect: cty.ObjectVal(map[string]cty.Value{
"map": cty.MapVal(map[string]cty.Value{
"a": cty.StringVal("a"),
"b": cty.StringVal(""),
}),
}),
},
} {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
got := copyMissingValues(tc.Dst, tc.Src)