105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
package cli
|
||
|
||
import (
|
||
"flag"
|
||
"fmt"
|
||
"time"
|
||
)
|
||
|
||
// TakesValue returns true of the flag takes a value, otherwise false
|
||
func (f *DurationFlag) TakesValue() bool {
|
||
return true
|
||
}
|
||
|
||
// GetUsage returns the usage string for the flag
|
||
func (f *DurationFlag) GetUsage() string {
|
||
return f.Usage
|
||
}
|
||
|
||
// GetCategory returns the category for the flag
|
||
func (f *DurationFlag) GetCategory() string {
|
||
return f.Category
|
||
}
|
||
|
||
// GetValue returns the flags value as string representation and an empty
|
||
// string if the flag takes no value at all.
|
||
func (f *DurationFlag) GetValue() string {
|
||
return f.Value.String()
|
||
}
|
||
|
||
// GetDefaultText returns the default text for this flag
|
||
func (f *DurationFlag) GetDefaultText() string {
|
||
if f.DefaultText != "" {
|
||
return f.DefaultText
|
||
}
|
||
return f.defaultValue.String()
|
||
}
|
||
|
||
// GetEnvVars returns the env vars for this flag
|
||
func (f *DurationFlag) GetEnvVars() []string {
|
||
return f.EnvVars
|
||
}
|
||
|
||
// Apply populates the flag given the flag set and environment
|
||
func (f *DurationFlag) Apply(set *flag.FlagSet) error {
|
||
// set default value so that environment wont be able to overwrite it
|
||
f.defaultValue = f.Value
|
||
|
||
if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
|
||
if val != "" {
|
||
valDuration, err := time.ParseDuration(val)
|
||
|
||
if err != nil {
|
||
return fmt.Errorf("could not parse %q as duration value from %s for flag %s: %s", val, source, f.Name, err)
|
||
}
|
||
|
||
f.Value = valDuration
|
||
f.HasBeenSet = true
|
||
}
|
||
}
|
||
|
||
for _, name := range f.Names() {
|
||
if f.Destination != nil {
|
||
set.DurationVar(f.Destination, name, f.Value, f.Usage)
|
||
continue
|
||
}
|
||
set.Duration(name, f.Value, f.Usage)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// Get returns the flag’s value in the given Context.
|
||
func (f *DurationFlag) Get(ctx *Context) time.Duration {
|
||
return ctx.Duration(f.Name)
|
||
}
|
||
|
||
// RunAction executes flag action if set
|
||
func (f *DurationFlag) RunAction(c *Context) error {
|
||
if f.Action != nil {
|
||
return f.Action(c, c.Duration(f.Name))
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// Duration looks up the value of a local DurationFlag, returns
|
||
// 0 if not found
|
||
func (cCtx *Context) Duration(name string) time.Duration {
|
||
if fs := cCtx.lookupFlagSet(name); fs != nil {
|
||
return lookupDuration(name, fs)
|
||
}
|
||
return 0
|
||
}
|
||
|
||
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
|
||
f := set.Lookup(name)
|
||
if f != nil {
|
||
parsed, err := time.ParseDuration(f.Value.String())
|
||
if err != nil {
|
||
return 0
|
||
}
|
||
return parsed
|
||
}
|
||
return 0
|
||
}
|