github.com/tilt-dev/tilt@v0.33.15-0.20240515162809-0a22ed45d8a0/internal/tiltfile/config/string.go (about)

     1  package config
     2  
     3  import (
     4  	"fmt"
     5  
     6  	flag "github.com/spf13/pflag"
     7  	"go.starlark.net/starlark"
     8  )
     9  
    10  type stringSetting struct {
    11  	value string
    12  	isSet bool
    13  }
    14  
    15  var _ configValue = &stringSetting{}
    16  var _ flag.Value = &stringSetting{}
    17  
    18  func (s *stringSetting) starlark() starlark.Value {
    19  	return starlark.String(s.value)
    20  }
    21  
    22  func (s *stringSetting) IsSet() bool {
    23  	return s.isSet
    24  }
    25  
    26  func (s *stringSetting) Type() string {
    27  	return "string"
    28  }
    29  
    30  func (s *stringSetting) setFromInterface(i interface{}) error {
    31  	if i == nil {
    32  		return nil
    33  	}
    34  	v, ok := i.(string)
    35  	if !ok {
    36  		return fmt.Errorf("expected %T, found %T", s.value, i)
    37  	}
    38  
    39  	s.value = v
    40  	s.isSet = true
    41  
    42  	return nil
    43  }
    44  
    45  func (s *stringSetting) Set(v string) error {
    46  	if s.isSet {
    47  		return fmt.Errorf("string settings can only be specified once. multiple values found (last value: %s)", v)
    48  	}
    49  
    50  	s.value = v
    51  	s.isSet = true
    52  	return nil
    53  }
    54  
    55  func (s *stringSetting) String() string {
    56  	return s.value
    57  }