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add is set method to flag interface - refer #294

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This commit is contained in:
Ajitem Sahasrabuddhe
2019-09-15 18:46:38 +05:30
parent 2746d8dee6
commit ef1ba861f7
23 changed files with 197 additions and 800 deletions
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52
flag_string.go
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@@ -15,52 +15,59 @@ type StringFlag struct {
Value string
DefaultText string
Destination *string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *StringFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (s *StringFlag) String() string {
return FlagStringer(s)
func (f *StringFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (s *StringFlag) Names() []string {
return flagNames(s)
func (f *StringFlag) Names() []string {
return flagNames(f)
}
// IsRequired returns whether or not the flag is required
func (s *StringFlag) IsRequired() bool {
return s.Required
func (f *StringFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (s *StringFlag) TakesValue() bool {
func (f *StringFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (s *StringFlag) GetUsage() string {
return s.Usage
func (f *StringFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (s *StringFlag) GetValue() string {
return s.Value
func (f *StringFlag) GetValue() string {
return f.Value
}
// Apply populates the flag given the flag set and environment
func (s *StringFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(s.EnvVars, s.FilePath); ok {
s.Value = val
func (f *StringFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
f.Value = val
f.HasBeenSet = true
}
for _, name := range s.Names() {
if s.Destination != nil {
set.StringVar(s.Destination, name, s.Value, s.Usage)
for _, name := range f.Names() {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.String(name, s.Value, s.Usage)
set.String(name, f.Value, f.Usage)
}
return nil
@@ -75,15 +82,6 @@ func (c *Context) String(name string) string {
return ""
}
// GlobalString looks up the value of a global StringFlag, returns
// "" if not found
//func (c *Context) GlobalString(name string) string {
// if fs := lookupGlobalFlagSet(name, c); fs != nil {
// return lookupPath(name, fs)
// }
// return ""
//}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {