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feat: add custom flag parser for extensions (#4269)
* add custom flag parser * add changelog
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| package plugin | ||
|
|
||
| import ( | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/ignite/cli/v29/ignite/pkg/errors" | ||
| ) | ||
|
|
||
| var ( | ||
| // ErrFlagNotFound error key flag not found. | ||
| ErrFlagNotFound = errors.New("flag not found") | ||
| // ErrInvalidFlagType error invalid flag type. | ||
| ErrInvalidFlagType = errors.New("invalid flag type") | ||
| // ErrFlagAssertion error flag type assertion failed. | ||
| ErrFlagAssertion = errors.New("flag type assertion failed") | ||
| ) | ||
|
|
||
| // Flags represents a slice of Flag pointers. | ||
| type Flags []*Flag | ||
|
|
||
| // getValue returns the value of the flag with the specified key and type. | ||
| // It uses the provided conversion function to convert the string value to the desired type. | ||
| func (f Flags) getValue(key string, flagType FlagType, convFunc func(v string) (interface{}, error)) (interface{}, error) { | ||
| for _, flag := range f { | ||
| if flag.Name == key { | ||
| if flag.Type != flagType { | ||
| return nil, errors.Wrapf(ErrInvalidFlagType, "invalid flag type %v for key %s", flag.Type, key) | ||
| } | ||
| return convFunc(flagValue(flag)) | ||
| } | ||
| } | ||
| return nil, errors.Wrap(ErrFlagNotFound, key) | ||
| } | ||
|
|
||
| // GetString retrieves the string value of the flag with the specified key. | ||
| func (f Flags) GetString(key string) (string, error) { | ||
| v, err := f.getValue(key, FlagTypeString, func(v string) (interface{}, error) { | ||
| return strings.TrimSpace(v), nil | ||
| }) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| result, ok := v.(string) | ||
| if !ok { | ||
| return "", errors.Wrapf(ErrFlagAssertion, "invalid assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // GetStringSlice retrieves the string slice value of the flag with the specified key. | ||
| func (f Flags) GetStringSlice(key string) ([]string, error) { | ||
| v, err := f.getValue(key, FlagTypeStringSlice, func(v string) (interface{}, error) { | ||
| v = strings.Trim(v, "[]") | ||
| s := strings.Split(v, ",") | ||
| if len(s) == 0 || (len(s) == 1 && s[0] == "") { | ||
| return []string{}, nil | ||
| } | ||
| return s, nil | ||
| }) | ||
| if err != nil { | ||
| return []string{}, err | ||
| } | ||
| result, ok := v.([]string) | ||
| if !ok { | ||
| return []string{}, errors.Wrapf(ErrFlagAssertion, "invalid string slice assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // GetBool retrieves the boolean value of the flag with the specified key. | ||
| func (f Flags) GetBool(key string) (bool, error) { | ||
| v, err := f.getValue(key, FlagTypeBool, func(v string) (interface{}, error) { | ||
| return strconv.ParseBool(v) | ||
| }) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| result, ok := v.(bool) | ||
| if !ok { | ||
| return false, errors.Wrapf(ErrFlagAssertion, "invalid bool assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // GetInt retrieves the integer value of the flag with the specified key. | ||
| func (f Flags) GetInt(key string) (int, error) { | ||
| v, err := f.getValue(key, FlagTypeInt, func(v string) (interface{}, error) { | ||
| return strconv.Atoi(v) | ||
| }) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| result, ok := v.(int) | ||
| if !ok { | ||
| return 0, errors.Wrapf(ErrFlagAssertion, "invalid int assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // GetInt64 retrieves the int64 value of the flag with the specified key. | ||
| func (f Flags) GetInt64(key string) (int64, error) { | ||
| v, err := f.getValue(key, FlagTypeInt64, func(v string) (interface{}, error) { | ||
| return strconv.ParseInt(v, 10, 64) | ||
| }) | ||
| if err != nil { | ||
| return int64(0), err | ||
| } | ||
| result, ok := v.(int64) | ||
| if !ok { | ||
| return int64(0), errors.Wrapf(ErrFlagAssertion, "invalid int64 assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // GetUint retrieves the uint value of the flag with the specified key. | ||
| func (f Flags) GetUint(key string) (uint, error) { | ||
| v, err := f.getValue(key, FlagTypeUint, func(v string) (interface{}, error) { | ||
| return strconv.ParseUint(v, 10, 64) | ||
| }) | ||
| if err != nil { | ||
| return uint(0), err | ||
| } | ||
| result, ok := v.(uint64) | ||
| if !ok { | ||
| return uint(0), errors.Wrapf(ErrFlagAssertion, "invalid uint assertion type %T for key %s", v, key) | ||
| } | ||
| return uint(result), nil | ||
| } | ||
|
|
||
| // GetUint64 retrieves the uint64 value of the flag with the specified key. | ||
| func (f Flags) GetUint64(key string) (uint64, error) { | ||
| v, err := f.getValue(key, FlagTypeUint64, func(v string) (interface{}, error) { | ||
| return strconv.ParseUint(v, 10, 64) | ||
| }) | ||
| if err != nil { | ||
| return uint64(0), err | ||
| } | ||
| result, ok := v.(uint64) | ||
| if !ok { | ||
| return uint64(0), errors.Wrapf(ErrFlagAssertion, "invalid uint64 assertion type %T for key %s", v, key) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| // flagValue returns the value of the flag if set, otherwise returns the default value. | ||
| func flagValue(flag *Flag) string { | ||
| if flag.Value != "" { | ||
| return flag.Value | ||
| } | ||
| if flag.DefaultValue != "" { | ||
| return flag.DefaultValue | ||
| } | ||
| if flag.Type == FlagTypeBool || | ||
| flag.Type == FlagTypeInt || | ||
| flag.Type == FlagTypeInt64 || | ||
| flag.Type == FlagTypeUint || | ||
| flag.Type == FlagTypeUint64 { | ||
| return "0" | ||
| } | ||
| return "" | ||
| } |
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