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Co-authored-by: Julián Toledano <[email protected]> Co-authored-by: Julien Robert <[email protected]>
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Dec 10, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| package flag | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "strings" | ||
|
|
||
| "google.golang.org/protobuf/reflect/protoreflect" | ||
|
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| basev1beta1 "cosmossdk.io/api/cosmos/base/v1beta1" | ||
| "cosmossdk.io/client/v2/internal/coins" | ||
| ) | ||
|
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| type decCoinType struct{} | ||
|
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| type decCoinValue struct { | ||
| value *basev1beta1.DecCoin | ||
| } | ||
|
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| func (c decCoinType) NewValue(*context.Context, *Builder) Value { | ||
| return &decCoinValue{} | ||
| } | ||
|
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| func (c decCoinType) DefaultValue() string { | ||
| return "zero" | ||
| } | ||
|
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| func (c *decCoinValue) Get(protoreflect.Value) (protoreflect.Value, error) { | ||
| if c.value == nil { | ||
| return protoreflect.Value{}, nil | ||
| } | ||
| return protoreflect.ValueOfMessage(c.value.ProtoReflect()), nil | ||
| } | ||
|
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| func (c *decCoinValue) String() string { | ||
| if c.value == nil { | ||
| return "" | ||
| } | ||
|
|
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| return c.value.String() | ||
| } | ||
|
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| func (c *decCoinValue) Set(stringValue string) error { | ||
| if strings.Contains(stringValue, ",") { | ||
| return errors.New("coin flag must be a single coin, specific multiple coins with multiple flags or spaces") | ||
| } | ||
|
|
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| coin, err := coins.ParseDecCoin(stringValue) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| c.value = coin | ||
| return nil | ||
| } | ||
|
|
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| func (c *decCoinValue) Type() string { | ||
| return "cosmos.base.v1beta1.DecCoin" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package coins | ||
|
|
||
| import ( | ||
| "errors" | ||
| "regexp" | ||
| "strings" | ||
|
|
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| basev1beta1 "cosmossdk.io/api/cosmos/base/v1beta1" | ||
| ) | ||
|
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| // Amount can be a whole number or a decimal number. Denominations can be 3 ~ 128 | ||
| // characters long and support letters, followed by either a letter, a number or | ||
| // a separator ('/', ':', '.', '_' or '-'). | ||
| var coinRegex = regexp.MustCompile(`^(\d+(\.\d+)?)([a-zA-Z][a-zA-Z0-9\/\:\._\-]{2,127})$`) | ||
|
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| // ParseCoin parses a coin from a string. The string must be in the format | ||
| // <amount><denom>, where <amount> is a number and <denom> is a valid denom. | ||
| func ParseCoin(input string) (*basev1beta1.Coin, error) { | ||
| amount, denom, err := parseCoin(input) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &basev1beta1.Coin{ | ||
| Amount: amount, | ||
| Denom: denom, | ||
| }, nil | ||
| } | ||
|
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| // ParseDecCoin parses a decCoin from a string. The string must be in the format | ||
| // <amount><denom>, where <amount> is a number and <denom> is a valid denom. | ||
| func ParseDecCoin(input string) (*basev1beta1.DecCoin, error) { | ||
| amount, denom, err := parseCoin(input) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return &basev1beta1.DecCoin{ | ||
| Amount: amount, | ||
| Denom: denom, | ||
| }, nil | ||
| } | ||
|
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| // parseCoin parses a coin string into its amount and denom components. | ||
| // The input string must be in the format <amount><denom>. | ||
| // It returns the amount string, denom string, and any error encountered. | ||
| // Returns an error if the input is empty or doesn't match the expected format. | ||
| func parseCoin(input string) (amount, denom string, err error) { | ||
| input = strings.TrimSpace(input) | ||
|
|
||
| if input == "" { | ||
| return "", "", errors.New("empty input when parsing coin") | ||
| } | ||
|
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| matches := coinRegex.FindStringSubmatch(input) | ||
|
|
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| if len(matches) == 0 { | ||
| return "", "", errors.New("invalid input format") | ||
| } | ||
|
|
||
| return matches[1], matches[3], nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package coins | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
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| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| func Test_parseCoin(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| input string | ||
| amount string | ||
| denom string | ||
| err string | ||
| }{ | ||
| { | ||
| name: "ok", | ||
| input: "1000stake", | ||
| amount: "1000", | ||
| denom: "stake", | ||
| }, | ||
| { | ||
| name: "empty", | ||
| input: "", | ||
| err: "empty input when parsing coin", | ||
| }, | ||
| { | ||
| name: "empty denom", | ||
| input: "1000", | ||
| err: "invalid input format", | ||
| }, | ||
| { | ||
| name: "empty amount", | ||
| input: "stake", | ||
| err: "invalid input format", | ||
| }, | ||
| { | ||
| name: "<denom><amount> format", | ||
| input: "stake1000", | ||
| err: "invalid input format", | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| amount, denom, err := parseCoin(tt.input) | ||
| if tt.err != "" { | ||
| require.Error(t, err) | ||
| require.Contains(t, err.Error(), tt.err) | ||
| } else { | ||
| require.NoError(t, err) | ||
| require.Equal(t, tt.amount, amount) | ||
| require.Equal(t, tt.denom, denom) | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
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| func TestParseCoin(t *testing.T) { | ||
| encodedCoin := "1000000000foo" | ||
| coin, err := ParseCoin(encodedCoin) | ||
| require.NoError(t, err) | ||
| require.Equal(t, "1000000000", coin.Amount) | ||
| require.Equal(t, "foo", coin.Denom) | ||
| } | ||
|
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| func TestParseDecCoin(t *testing.T) { | ||
| encodedCoin := "1000000000foo" | ||
| coin, err := ParseDecCoin(encodedCoin) | ||
| require.NoError(t, err) | ||
| require.Equal(t, "1000000000", coin.Amount) | ||
| require.Equal(t, "foo", coin.Denom) | ||
| } |