builder.oracle.oci: make ConfigProvider unexported

so that it doesn't temper with hcl2 code generation & parsing.

The field is set only later on after further processing.

builder/oracle/oci/builder.go

@@ -84,7 +84,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 		return nil, rawErr.(error)
 	}
 
-	region, err := b.config.ConfigProvider.Region()
+	region, err := b.config.configProvider.Region()
 	if err != nil {
 		return nil, err
 	}

builder/oracle/oci/config.go

@@ -23,7 +23,7 @@ type Config struct {
 	common.PackerConfig `mapstructure:",squash"`
 	Comm                communicator.Config `mapstructure:",squash"`
 
-	ConfigProvider ocicommon.ConfigurationProvider
+	configProvider ocicommon.ConfigurationProvider
 
 	AccessCfgFile        string `mapstructure:"access_cfg_file"`
 	AccessCfgFileAccount string `mapstructure:"access_cfg_file_account"`
@@ -69,6 +69,10 @@ type Config struct {
 	ctx interpolate.Context
 }
 
+func (c *Config) ConfigProvider() ocicommon.ConfigurationProvider {
+	return c.configProvider
+}
+
 func NewConfig(raws ...interface{}) (*Config, error) {
 	c := &Config{}
 
@@ -158,7 +162,7 @@ func NewConfig(raws ...interface{}) (*Config, error) {
 			errs, errors.New("'key_file' must be specified"))
 	}
 
-	c.ConfigProvider = configProvider
+	c.configProvider = configProvider
 
 	if c.AvailabilityDomain == "" {
 		errs = packer.MultiErrorAppend(

builder/oracle/oci/config_test.go

@@ -117,7 +117,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration %+v", errs)
 		}
 
-		tenancy, err := c.ConfigProvider.TenancyOCID()
+		tenancy, err := c.configProvider.TenancyOCID()
 		if err != nil {
 			t.Fatalf("Unexpected error getting tenancy ocid: %v", err)
 		}
@@ -136,7 +136,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration %+v", errs)
 		}
 
-		region, err := c.ConfigProvider.Region()
+		region, err := c.configProvider.Region()
 		if err != nil {
 			t.Fatalf("Unexpected error getting region: %v", err)
 		}
@@ -188,7 +188,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration %+v", errs)
 		}
 
-		user, _ := c.ConfigProvider.UserOCID()
+		user, _ := c.configProvider.UserOCID()
 		if user != expected {
 			t.Errorf("Expected ConfigProvider.UserOCID: %s, got %s", expected, user)
 		}
@@ -204,7 +204,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration %+v", errs)
 		}
 
-		tenancy, _ := c.ConfigProvider.TenancyOCID()
+		tenancy, _ := c.configProvider.TenancyOCID()
 		if tenancy != expected {
 			t.Errorf("Expected ConfigProvider.TenancyOCID: %s, got %s", expected, tenancy)
 		}
@@ -220,7 +220,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration %+v", errs)
 		}
 
-		region, _ := c.ConfigProvider.Region()
+		region, _ := c.configProvider.Region()
 		if region != expected {
 			t.Errorf("Expected ConfigProvider.Region: %s, got %s", expected, region)
 		}
@@ -236,7 +236,7 @@ func TestConfig(t *testing.T) {
 			t.Fatalf("Unexpected error in configuration: %+v", errs)
 		}
 
-		fingerprint, _ := c.ConfigProvider.KeyFingerprint()
+		fingerprint, _ := c.configProvider.KeyFingerprint()
 		if fingerprint != expected {
 			t.Errorf("Expected ConfigProvider.KeyFingerprint: %s, got %s", expected, fingerprint)
 		}

builder/oracle/oci/driver_oci.go

@@ -20,12 +20,12 @@ type driverOCI struct {
 
 // NewDriverOCI Creates a new driverOCI with a connected compute client and a connected vcn client.
 func NewDriverOCI(cfg *Config) (Driver, error) {
-	coreClient, err := core.NewComputeClientWithConfigurationProvider(cfg.ConfigProvider)
+	coreClient, err := core.NewComputeClientWithConfigurationProvider(cfg.configProvider)
 	if err != nil {
 		return nil, err
 	}
 
-	vcnClient, err := core.NewVirtualNetworkClientWithConfigurationProvider(cfg.ConfigProvider)
+	vcnClient, err := core.NewVirtualNetworkClientWithConfigurationProvider(cfg.configProvider)
 	if err != nil {
 		return nil, err
 	}