fix(server): properly parse multiple gas config(backport cosmos/cosmos-sdk#18537) (backport #1337)

CHANGELOG.md

@@ -59,6 +59,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/crypto) [\#1316](https://github.com/Finschia/finschia-sdk/pull/1316) error if incorrect ledger public key (backport cosmos/cosmos-sdk#14460, cosmos/cosmos-sdk#19691) 
 * (x/auth) [#1319](https://github.com/Finschia/finschia-sdk/pull/1319) prevent signing from wrong key in multisig
 * (x/mint, x/slashing) [\#1323](https://github.com/Finschia/finschia-sdk/pull/1323) add missing nil check for params validation
+* (x/server) [\#1337](https://github.com/Finschia/finschia-sdk/pull/1337) fix panic when defining minimum gas config as `100stake;100uatom`. Use a `,` delimiter instead of `;`. Fixes the server config getter to use the correct delimiter (backport cosmos/cosmos-sdk#18537)
 
 ### Removed
 

server/config/config.go

@@ -3,7 +3,6 @@
 import (
 	"fmt"
 	"math"
-	"strings"
 
 	"github.com/spf13/viper"
 
@@ -217,23 +216,15 @@
 	c.MinGasPrices = gasPrices.String()
 }
 
-// GetMinGasPrices returns the validator's minimum gas prices based on the set
-// configuration.
+// GetMinGasPrices returns the validator's minimum gas prices based on the set configuration.
 func (c *Config) GetMinGasPrices() sdk.DecCoins {
 	if c.MinGasPrices == "" {
 		return sdk.DecCoins{}
 	}
 
-	gasPricesStr := strings.Split(c.MinGasPrices, ";")
-	gasPrices := make(sdk.DecCoins, len(gasPricesStr))
-
-	for i, s := range gasPricesStr {
-		gasPrice, err := sdk.ParseDecCoin(s)
-		if err != nil {
-			panic(fmt.Errorf("failed to parse minimum gas price coin (%s): %s", s, err))
-		}
-
-		gasPrices[i] = gasPrice
+	gasPrices, err := sdk.ParseDecCoins(c.MinGasPrices)
+	if err != nil {
+		panic(fmt.Sprintf("invalid minimum gas prices: %v", err))
 	}
 
 	return gasPrices

server/config/config_test.go

@@ -14,10 +14,18 @@ func TestDefaultConfig(t *testing.T) {
 	require.True(t, cfg.GetMinGasPrices().IsZero())
 }
 
-func TestSetMinimumFees(t *testing.T) {
+func TestGetAndSetMinimumGas(t *testing.T) {
 	cfg := DefaultConfig()
-	cfg.SetMinGasPrices(sdk.DecCoins{sdk.NewInt64DecCoin("foo", 5)})
+
+	input := sdk.DecCoins{sdk.NewInt64DecCoin("foo", 5)}
+	cfg.SetMinGasPrices(input)
 	require.Equal(t, "5.000000000000000000foo", cfg.MinGasPrices)
+	require.EqualValues(t, cfg.GetMinGasPrices(), input)
+
+	input = sdk.DecCoins{sdk.NewInt64DecCoin("bar", 1), sdk.NewInt64DecCoin("foo", 5)}
+	cfg.SetMinGasPrices(input)
+	require.Equal(t, "1.000000000000000000bar,5.000000000000000000foo", cfg.MinGasPrices)
+	require.EqualValues(t, cfg.GetMinGasPrices(), input)
 }
 
 func TestValidateBasic(t *testing.T) {

server/config/toml.go

@@ -17,7 +17,7 @@ const DefaultConfigTemplate = `# This is a TOML config file.
 
 # The minimum gas prices a validator is willing to accept for processing a
 # transaction. A transaction's fees must meet the minimum of any denomination
-# specified in this config (e.g. 0.25token1;0.0001token2).
+# specified in this config (e.g. 0.25token1,0.0001token2).
 minimum-gas-prices = "{{ .BaseConfig.MinGasPrices }}"
 
 # default: the last 100 states are kept in addition to every 500th state; pruning at 10 block intervals