|
|
package cli
|
|
|
|
|
|
import (
|
|
|
"flag"
|
|
|
"fmt"
|
|
|
)
|
|
|
|
|
|
type Path = string
|
|
|
|
|
|
// 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
|
|
|
}
|
|
|
|
|
|
// GetDefaultText returns the default text for this flag
|
|
|
func (f *PathFlag) GetDefaultText() string {
|
|
|
if f.DefaultText != "" {
|
|
|
return f.DefaultText
|
|
|
}
|
|
|
if f.defaultValue == "" {
|
|
|
return f.defaultValue
|
|
|
}
|
|
|
return fmt.Sprintf("%q", f.defaultValue)
|
|
|
}
|
|
|
|
|
|
// Apply populates the flag given the flag set and environment
|
|
|
func (f *PathFlag) Apply(set *flag.FlagSet) error {
|
|
|
// set default value so that environment wont be able to overwrite it
|
|
|
f.defaultValue = f.Value
|
|
|
|
|
|
if val, _, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
|
|
|
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
|
|
|
}
|
|
|
|
|
|
// Get returns the flag’s value in the given Context.
|
|
|
func (f *PathFlag) Get(ctx *Context) string {
|
|
|
return ctx.Path(f.Name)
|
|
|
}
|
|
|
|
|
|
// RunAction executes flag action if set
|
|
|
func (f *PathFlag) RunAction(c *Context) error {
|
|
|
if f.Action != nil {
|
|
|
return f.Action(c, c.Path(f.Name))
|
|
|
}
|
|
|
|
|
|
return nil
|
|
|
}
|
|
|
|
|
|
// Path looks up the value of a local PathFlag, returns
|
|
|
// "" if not found
|
|
|
func (cCtx *Context) Path(name string) string {
|
|
|
if fs := cCtx.lookupFlagSet(name); 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 ""
|
|
|
}
|
