96 lines
2.0 KiB
Go
96 lines
2.0 KiB
Go
package cli
|
|
|
|
import "flag"
|
|
|
|
type PathFlag struct {
|
|
Name string
|
|
Aliases []string
|
|
Usage string
|
|
EnvVars []string
|
|
FilePath string
|
|
Required bool
|
|
Hidden bool
|
|
TakesFile bool
|
|
Value string
|
|
DefaultText string
|
|
Destination *string
|
|
HasBeenSet bool
|
|
}
|
|
|
|
// IsSet returns whether or not the flag has been set through env or file
|
|
func (f *PathFlag) IsSet() bool {
|
|
return f.HasBeenSet
|
|
}
|
|
|
|
// String returns a readable representation of this value
|
|
// (for usage defaults)
|
|
func (f *PathFlag) String() string {
|
|
return FlagStringer(f)
|
|
}
|
|
|
|
// Names returns the names of the flag
|
|
func (f *PathFlag) Names() []string {
|
|
return flagNames(f)
|
|
}
|
|
|
|
// IsRequired returns whether or not the flag is required
|
|
func (f *PathFlag) IsRequired() bool {
|
|
return f.Required
|
|
}
|
|
|
|
// TakesValue returns true of the flag takes a value, otherwise false
|
|
func (f *PathFlag) TakesValue() bool {
|
|
return true
|
|
}
|
|
|
|
// GetUsage returns the usage string for the flag
|
|
func (f *PathFlag) 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 (f *PathFlag) GetValue() string {
|
|
return f.Value
|
|
}
|
|
|
|
// Apply populates the flag given the flag set and environment
|
|
func (f *PathFlag) Apply(set *flag.FlagSet) error {
|
|
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
|
|
f.Value = val
|
|
f.HasBeenSet = true
|
|
}
|
|
|
|
for _, name := range f.Names() {
|
|
if f.Destination != nil {
|
|
set.StringVar(f.Destination, name, f.Value, f.Usage)
|
|
continue
|
|
}
|
|
set.String(name, f.Value, f.Usage)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Path looks up the value of a local PathFlag, returns
|
|
// "" if not found
|
|
func (c *Context) Path(name string) string {
|
|
if fs := lookupFlagSet(name, c); fs != nil {
|
|
return lookupPath(name, fs)
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
func lookupPath(name string, set *flag.FlagSet) string {
|
|
f := set.Lookup(name)
|
|
if f != nil {
|
|
parsed, err := f.Value.String(), error(nil)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
return parsed
|
|
}
|
|
return ""
|
|
}
|