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Added destination scan support for flags

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This commit is contained in:
ston1th 2015-11-14 20:01:15 +01:00
parent 70e3fa51eb
commit bb7e45acf1
1 changed files with 44 additions and 19 deletions
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63
flag.go
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@ -237,9 +237,10 @@ func (f IntSliceFlag) getName() string {
// BoolFlag is a switch that defaults to false
type BoolFlag struct {
Name string
Usage string
EnvVar string
Name string
Usage string
EnvVar string
Destination *bool
}
// String returns a readable representation of this value (for usage defaults)
@ -264,6 +265,10 @@ func (f BoolFlag) Apply(set *flag.FlagSet) {
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
}
@ -312,10 +317,11 @@ func (f BoolTFlag) getName() string {
// StringFlag represents a flag that takes as string value
type StringFlag struct {
Name string
Value string
Usage string
EnvVar string
Name string
Value string
Usage string
EnvVar string
Destination *string
}
// String returns the usage
@ -345,6 +351,10 @@ func (f StringFlag) Apply(set *flag.FlagSet) {
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
return
}
set.String(name, f.Value, f.Usage)
})
}
@ -356,10 +366,11 @@ func (f StringFlag) getName() string {
// IntFlag is a flag that takes an integer
// Errors if the value provided cannot be parsed
type IntFlag struct {
Name string
Value int
Usage string
EnvVar string
Name string
Value int
Usage string
EnvVar string
Destination *int
}
// String returns the usage
@ -383,6 +394,10 @@ func (f IntFlag) Apply(set *flag.FlagSet) {
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Int(name, f.Value, f.Usage)
})
}
@ -394,10 +409,11 @@ func (f IntFlag) getName() string {
// DurationFlag is a flag that takes a duration specified in Go's duration
// format: https://golang.org/pkg/time/#ParseDuration
type DurationFlag struct {
Name string
Value time.Duration
Usage string
EnvVar string
Name string
Value time.Duration
Usage string
EnvVar string
Destination *time.Duration
}
// String returns a readable representation of this value (for usage defaults)
@ -421,6 +437,10 @@ func (f DurationFlag) Apply(set *flag.FlagSet) {
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Duration(name, f.Value, f.Usage)
})
}
@ -432,10 +452,11 @@ func (f DurationFlag) getName() string {
// Float64Flag is a flag that takes an float value
// Errors if the value provided cannot be parsed
type Float64Flag struct {
Name string
Value float64
Usage string
EnvVar string
Name string
Value float64
Usage string
EnvVar string
Destination *float64
}
// String returns the usage
@ -458,6 +479,10 @@ func (f Float64Flag) Apply(set *flag.FlagSet) {
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Float64(name, f.Value, f.Usage)
})
}