Use built-in schema.HashString.

builtin/providers/atlas/resource_artifact.go

@@ -5,7 +5,6 @@ import (
 	"regexp"
 
 	"github.com/hashicorp/atlas-go/v1"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 )
 
@@ -51,9 +50,7 @@ func resourceArtifact() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"metadata": &schema.Schema{

builtin/providers/aws/provider.go

@@ -1,7 +1,6 @@
 package aws
 
 import (
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/mutexkv"
 	"github.com/hashicorp/terraform/helper/schema"
 	"github.com/hashicorp/terraform/terraform"
@@ -73,9 +72,7 @@ func Provider() terraform.ResourceProvider {
 				Elem:          &schema.Schema{Type: schema.TypeString},
 				Optional:      true,
 				ConflictsWith: []string{"forbidden_account_ids"},
-				Set: func(v interface{}) int {
+				Set:           schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"forbidden_account_ids": &schema.Schema{
@@ -83,9 +80,7 @@ func Provider() terraform.ResourceProvider {
 				Elem:          &schema.Schema{Type: schema.TypeString},
 				Optional:      true,
 				ConflictsWith: []string{"allowed_account_ids"},
-				Set: func(v interface{}) int {
+				Set:           schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"dynamodb_endpoint": &schema.Schema{

builtin/providers/aws/resource_aws_cloudwatch_metric_alarm.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -61,9 +60,7 @@ func resourceAwsCloudWatchMetricAlarm() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"alarm_description": &schema.Schema{
 				Type:     schema.TypeString,
@@ -77,17 +74,13 @@ func resourceAwsCloudWatchMetricAlarm() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"ok_actions": &schema.Schema{
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"unit": &schema.Schema{
 				Type:     schema.TypeString,

builtin/providers/aws/resource_aws_elasticache_cluster.go

@@ -11,7 +11,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/service/elasticache"
 	"github.com/aws/aws-sdk-go/service/iam"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
 )
@@ -89,18 +88,14 @@ func resourceAwsElasticacheCluster() *schema.Resource {
 				Computed: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"security_group_ids": &schema.Schema{
 				Type:     schema.TypeSet,
 				Optional: true,
 				Computed: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			// Exported Attributes
 			"cache_nodes": &schema.Schema{
@@ -142,9 +137,7 @@ func resourceAwsElasticacheCluster() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"snapshot_window": &schema.Schema{
@@ -185,9 +178,7 @@ func resourceAwsElasticacheCluster() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"tags": tagsSchema(),

builtin/providers/aws/resource_aws_elasticache_security_group.go

@@ -8,7 +8,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/service/elasticache"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
 )
@@ -35,9 +34,7 @@ func resourceAwsElasticacheSecurityGroup() *schema.Resource {
 				Required: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/aws/resource_aws_elasticache_subnet_group.go

@@ -9,7 +9,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/service/elasticache"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
 )
@@ -41,9 +40,7 @@ func resourceAwsElasticacheSubnetGroup() *schema.Resource {
 				Type:     schema.TypeSet,
 				Required: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/aws/resource_aws_instance.go

@@ -117,9 +117,7 @@ func resourceAwsInstance() *schema.Resource {
 				Optional: true,
 				Computed: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"public_dns": &schema.Schema{

builtin/providers/aws/resource_aws_proxy_protocol_policy.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/service/elb"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 )
 
@@ -29,9 +28,7 @@ func resourceAwsProxyProtocolPolicy() *schema.Resource {
 				Type:     schema.TypeSet,
 				Elem:     &schema.Schema{Type: schema.TypeString},
 				Required: true,
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/aws/resource_aws_route_table.go

@@ -34,9 +34,7 @@ func resourceAwsRouteTable() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"route": &schema.Schema{

builtin/providers/aws/resource_aws_security_group.go

@@ -106,9 +106,7 @@ func resourceAwsSecurityGroup() *schema.Resource {
 							Type:     schema.TypeSet,
 							Optional: true,
 							Elem:     &schema.Schema{Type: schema.TypeString},
-							Set: func(v interface{}) int {
+							Set:      schema.HashString,
-								return hashcode.String(v.(string))
-							},
 						},
 
 						"self": &schema.Schema{
@@ -152,9 +150,7 @@ func resourceAwsSecurityGroup() *schema.Resource {
 							Type:     schema.TypeSet,
 							Optional: true,
 							Elem:     &schema.Schema{Type: schema.TypeString},
-							Set: func(v interface{}) int {
+							Set:      schema.HashString,
-								return hashcode.String(v.(string))
-							},
 						},
 
 						"self": &schema.Schema{

builtin/providers/aws/resource_aws_vpc_endpoint.go

@@ -7,7 +7,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/service/ec2"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 )
 
@@ -38,9 +37,7 @@ func resourceAwsVpcEndpoint() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/docker/resource_docker_container.go

@@ -85,7 +85,7 @@ func resourceDockerContainer() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set:      stringSetHash,
+				Set:      schema.HashString,
 			},
 
 			"publish_all_ports": &schema.Schema{
@@ -225,7 +225,7 @@ func resourceDockerContainer() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set:      stringSetHash,
+				Set:      schema.HashString,
 			},
 
 			"links": &schema.Schema{
@@ -233,7 +233,7 @@ func resourceDockerContainer() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set:      stringSetHash,
+				Set:      schema.HashString,
 			},
 
 			"ip_address": &schema.Schema{
@@ -339,7 +339,7 @@ func resourceDockerContainer() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set:      stringSetHash,
+				Set:      schema.HashString,
 			},
 		},
 	}
@@ -407,7 +407,3 @@ func resourceDockerVolumesHash(v interface{}) int {
 
 	return hashcode.String(buf.String())
 }
-
-func stringSetHash(v interface{}) int {
-	return hashcode.String(v.(string))
-}

builtin/providers/google/resource_compute_firewall.go

@@ -51,9 +51,7 @@ func resourceComputeFirewall() *schema.Resource {
 							Type:     schema.TypeSet,
 							Optional: true,
 							Elem:     &schema.Schema{Type: schema.TypeString},
-							Set: func(v interface{}) int {
+							Set:      schema.HashString,
-								return hashcode.String(v.(string))
-							},
 						},
 					},
 				},
@@ -64,27 +62,21 @@ func resourceComputeFirewall() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"source_tags": &schema.Schema{
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"target_tags": &schema.Schema{
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"self_link": &schema.Schema{

builtin/providers/google/resource_compute_instance.go

@@ -5,19 +5,14 @@ import (
 	"log"
 	"strings"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
 	"google.golang.org/api/googleapi"
 )
 
-func stringHashcode(v interface{}) int {
-	return hashcode.String(v.(string))
-}
-
 func stringScopeHashcode(v interface{}) int {
 	v = canonicalizeServiceScope(v.(string))
-	return hashcode.String(v.(string))
+	return schema.HashString(v)
 }
 
 func resourceComputeInstance() *schema.Resource {
@@ -263,7 +258,7 @@ func resourceComputeInstance() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set:      stringHashcode,
+				Set:      schema.HashString,
 			},
 
 			"metadata_fingerprint": &schema.Schema{

builtin/providers/google/resource_compute_instance_group_manager.go

@@ -8,7 +8,6 @@ import (
 	"google.golang.org/api/compute/v1"
 	"google.golang.org/api/googleapi"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 )
 
@@ -82,9 +81,7 @@ func resourceComputeInstanceGroupManager() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"target_size": &schema.Schema{

builtin/providers/google/resource_compute_instance_template.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
 	"google.golang.org/api/googleapi"
@@ -234,9 +233,7 @@ func resourceComputeInstanceTemplate() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"metadata_fingerprint": &schema.Schema{

builtin/providers/google/resource_compute_route.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
 	"google.golang.org/api/googleapi"
@@ -82,9 +81,7 @@ func resourceComputeRoute() *schema.Resource {
 				Optional: true,
 				ForceNew: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 
 			"self_link": &schema.Schema{

builtin/providers/openstack/resource_openstack_fw_policy_v1.go

@@ -5,7 +5,6 @@ import (
 	"log"
 	"time"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/schema"
 	"github.com/rackspace/gophercloud"
 	"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/fwaas/policies"
@@ -53,9 +52,7 @@ func resourceFWPolicyV1() *schema.Resource {
 				Type:     schema.TypeSet,
 				Optional: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/openstack/resource_openstack_lb_pool_v1.go

@@ -97,9 +97,7 @@ func resourceLBPoolV1() *schema.Resource {
 				Optional: true,
 				ForceNew: false,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 		},
 	}

builtin/providers/openstack/resource_openstack_networking_port_v2.go

@@ -5,7 +5,6 @@ import (
 	"log"
 	"time"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
 
@@ -67,9 +66,7 @@ func resourceNetworkingPortV2() *schema.Resource {
 				ForceNew: false,
 				Computed: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"device_id": &schema.Schema{
 				Type:     schema.TypeString,

builtin/providers/openstack/resource_openstack_networking_subnet_v2.go

@@ -5,7 +5,6 @@ import (
 	"log"
 	"time"
 
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
 
@@ -88,9 +87,7 @@ func resourceNetworkingSubnetV2() *schema.Resource {
 				Optional: true,
 				ForceNew: false,
 				Elem:     &schema.Schema{Type: schema.TypeString},
-				Set: func(v interface{}) int {
+				Set:      schema.HashString,
-					return hashcode.String(v.(string))
-				},
 			},
 			"host_routes": &schema.Schema{
 				Type:     schema.TypeList,

helper/schema/field_reader_config_test.go

@@ -6,7 +6,6 @@ import (
 
 	"github.com/hashicorp/hil/ast"
 	"github.com/hashicorp/terraform/config"
-	"github.com/hashicorp/terraform/helper/hashcode"
 	"github.com/hashicorp/terraform/terraform"
 )
 
@@ -213,9 +212,7 @@ func TestConfigFieldReader_ComputedSet(t *testing.T) {
 		"strSet": &Schema{
 			Type: TypeSet,
 			Elem: &Schema{Type: TypeString},
-			Set: func(v interface{}) int {
+			Set:  HashString,
-				return hashcode.String(v.(string))
-			},
 		},
 	}