Remove Config Backwards Compatibility: Enable GZIP

config/config.go

@@ -29,7 +29,6 @@ type Configuration struct {
 	Client           HTTPClient  `mapstructure:"http_client"`
 	CacheClient      HTTPClient  `mapstructure:"http_client_cache"`
 	AdminPort        int         `mapstructure:"admin_port"`
-	EnableGzip       bool        `mapstructure:"enable_gzip"`
 	Compression      Compression `mapstructure:"compression"`
 	// GarbageCollectorThreshold allocates virtual memory (in bytes) which is not used by PBS but
 	// serves as a hack to trigger the garbage collector only when the heap reaches at least this size.
@@ -1073,7 +1072,6 @@ func SetupViper(v *viper.Viper, filename string, bidderInfos BidderInfos) {
 	migrateConfigSpecialFeature1(v)
 	migrateConfigTCF2PurposeFlags(v)
 	migrateConfigDatabaseConnection(v)
-	migrateConfigCompression(v)
 
 	// These defaults must be set after the migrate functions because those functions look for the presence of these
 	// config fields and there isn't a way to detect presence of a config field using the viper package if a default
@@ -1114,8 +1112,6 @@ func SetupViper(v *viper.Viper, filename string, bidderInfos BidderInfos) {
 	v.SetDefault("gdpr.tcf2.special_feature1.vendor_exceptions", []openrtb_ext.BidderName{})
 	v.SetDefault("price_floors.enabled", false)
 
-	v.SetDefault("enable_gzip", false)
-
 	// Defaults for account_defaults.events.default_url
 	v.SetDefault("account_defaults.events.default_url", "https://PBS_HOST/event?t=##PBS-EVENTTYPE##&vtype=##PBS-VASTEVENT##&b=##PBS-BIDID##&f=i&a=##PBS-ACCOUNTID##&ts=##PBS-TIMESTAMP##&bidder=##PBS-BIDDER##&int=##PBS-INTEGRATION##&mt=##PBS-MEDIATYPE##&ch=##PBS-CHANNEL##&aid=##PBS-AUCTIONID##&l=##PBS-LINEID##")
 
@@ -1134,20 +1130,6 @@ func SetupViper(v *viper.Viper, filename string, bidderInfos BidderInfos) {
 	}
 }
 
-func migrateConfigCompression(v *viper.Viper) {
-	oldField := "enable_gzip"
-	newField := "compression.response.enable_gzip"
-	if v.IsSet(oldField) {
-		oldConfig := v.GetBool(oldField)
-		if v.IsSet(newField) {
-			glog.Warningf("using %s and ignoring deprecated %s", newField, oldField)
-		} else {
-			glog.Warningf("%s is deprecated and should be changed to %s", oldField, newField)
-			v.Set(newField, oldConfig)
-		}
-	}
-}
-
 func migrateConfigPurposeOneTreatment(v *viper.Viper) {
 	if oldConfig, ok := v.Get("gdpr.tcf2.purpose_one_treatement").(map[string]interface{}); ok {
 		if v.IsSet("gdpr.tcf2.purpose_one_treatment") {

config/config_test.go

@@ -180,7 +180,6 @@ func TestDefaults(t *testing.T) {
 	cmpBools(t, "price_floors.enabled", false, cfg.PriceFloors.Enabled)
 
 	// Assert compression related defaults
-	cmpBools(t, "enable_gzip", false, cfg.EnableGzip)
 	cmpBools(t, "compression.request.enable_gzip", false, cfg.Compression.Request.GZIP)
 	cmpBools(t, "compression.response.enable_gzip", false, cfg.Compression.Response.GZIP)
 
@@ -386,7 +385,6 @@ external_url: http://prebid-server.prebid.org/
 host: prebid-server.prebid.org
 port: 1234
 admin_port: 5678
-enable_gzip: false
 compression:
     request:
         enable_gzip: true
@@ -589,7 +587,6 @@ func TestFullConfig(t *testing.T) {
 	cmpInts(t, "account_defaults.privacy.ipv4.anon_keep_bits", 20, cfg.AccountDefaults.Privacy.IPv4Config.AnonKeepBits)
 
 	// Assert compression related defaults
-	cmpBools(t, "enable_gzip", false, cfg.EnableGzip)
 	cmpBools(t, "compression.request.enable_gzip", true, cfg.Compression.Request.GZIP)
 	cmpBools(t, "compression.response.enable_gzip", false, cfg.Compression.Response.GZIP)
 
@@ -2570,74 +2567,6 @@ func TestMigrateConfigDatabaseQueryParams(t *testing.T) {
 	assert.Equal(t, want_queries.poll_for_updates_amp_query, v.GetString("stored_responses.database.poll_for_updates.amp_query"))
 }
 
-func TestMigrateConfigCompression(t *testing.T) {
-	testCases := []struct {
-		desc                string
-		config              []byte
-		wantEnableGZIP      bool
-		wantReqGZIPEnabled  bool
-		wantRespGZIPEnabled bool
-	}{
-
-		{
-			desc:                "New config and old config not set",
-			config:              []byte{},
-			wantEnableGZIP:      false,
-			wantReqGZIPEnabled:  false,
-			wantRespGZIPEnabled: false,
-		},
-		{
-			desc: "Old config set, new config not set",
-			config: []byte(`
-                    enable_gzip: true
-                    `),
-			wantEnableGZIP:      true,
-			wantRespGZIPEnabled: true,
-			wantReqGZIPEnabled:  false,
-		},
-		{
-			desc: "Old config not set, new config set",
-			config: []byte(`
-                    compression:
-                        response:
-                            enable_gzip: true
-                        request:
-                            enable_gzip: false
-                    `),
-			wantEnableGZIP:      false,
-			wantRespGZIPEnabled: true,
-			wantReqGZIPEnabled:  false,
-		},
-		{
-			desc: "Old config set and new config set",
-			config: []byte(`
-                    enable_gzip: true
-                    compression:
-                        response:
-                            enable_gzip: false
-                        request:
-                            enable_gzip: true
-                    `),
-			wantEnableGZIP:      true,
-			wantRespGZIPEnabled: false,
-			wantReqGZIPEnabled:  true,
-		},
-	}
-
-	for _, test := range testCases {
-		v := viper.New()
-		v.SetConfigType("yaml")
-		err := v.ReadConfig(bytes.NewBuffer(test.config))
-		assert.NoError(t, err)
-
-		migrateConfigCompression(v)
-
-		assert.Equal(t, test.wantEnableGZIP, v.GetBool("enable_gzip"), test.desc)
-		assert.Equal(t, test.wantReqGZIPEnabled, v.GetBool("compression.request.enable_gzip"), test.desc)
-		assert.Equal(t, test.wantRespGZIPEnabled, v.GetBool("compression.response.enable_gzip"), test.desc)
-	}
-}
-
 func TestIsConfigInfoPresent(t *testing.T) {
 	configPrefix1Field2Only := []byte(`
       prefix1:

server/server_test.go

@@ -192,7 +192,6 @@ func TestListen(t *testing.T) {
 			Port:             8000,
 			UnixSocketEnable: false,
 			UnixSocketName:   "prebid_socket",
-			EnableGzip:       false,
 		}
 	)