mirror of
https://github.com/vbatts/go-mtree.git
synced 2024-11-28 02:55:39 +00:00
Vincent Batts
45591ed121
It seems this may be the last update to urfave/cli for go1.17, as their v2.25 uses generics of go1.18 and didn't partition it with build tags 😵😵😵 Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
package cli
|
||
|
||
import (
|
||
"flag"
|
||
"fmt"
|
||
"strconv"
|
||
)
|
||
|
||
// TakesValue returns true of the flag takes a value, otherwise false
|
||
func (f *UintFlag) TakesValue() bool {
|
||
return true
|
||
}
|
||
|
||
// GetUsage returns the usage string for the flag
|
||
func (f *UintFlag) GetUsage() string {
|
||
return f.Usage
|
||
}
|
||
|
||
// GetCategory returns the category for the flag
|
||
func (f *UintFlag) GetCategory() string {
|
||
return f.Category
|
||
}
|
||
|
||
// Apply populates the flag given the flag set and environment
|
||
func (f *UintFlag) 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 != "" {
|
||
valInt, err := strconv.ParseUint(val, f.Base, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("could not parse %q as uint value from %s for flag %s: %s", val, source, f.Name, err)
|
||
}
|
||
|
||
f.Value = uint(valInt)
|
||
f.HasBeenSet = true
|
||
}
|
||
}
|
||
|
||
for _, name := range f.Names() {
|
||
if f.Destination != nil {
|
||
set.UintVar(f.Destination, name, f.Value, f.Usage)
|
||
continue
|
||
}
|
||
set.Uint(name, f.Value, f.Usage)
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// RunAction executes flag action if set
|
||
func (f *UintFlag) RunAction(c *Context) error {
|
||
if f.Action != nil {
|
||
return f.Action(c, c.Uint(f.Name))
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// GetValue returns the flags value as string representation and an empty
|
||
// string if the flag takes no value at all.
|
||
func (f *UintFlag) GetValue() string {
|
||
return fmt.Sprintf("%d", f.Value)
|
||
}
|
||
|
||
// GetDefaultText returns the default text for this flag
|
||
func (f *UintFlag) GetDefaultText() string {
|
||
if f.DefaultText != "" {
|
||
return f.DefaultText
|
||
}
|
||
return fmt.Sprintf("%d", f.defaultValue)
|
||
}
|
||
|
||
// GetEnvVars returns the env vars for this flag
|
||
func (f *UintFlag) GetEnvVars() []string {
|
||
return f.EnvVars
|
||
}
|
||
|
||
// Get returns the flag’s value in the given Context.
|
||
func (f *UintFlag) Get(ctx *Context) uint {
|
||
return ctx.Uint(f.Name)
|
||
}
|
||
|
||
// Uint looks up the value of a local UintFlag, returns
|
||
// 0 if not found
|
||
func (cCtx *Context) Uint(name string) uint {
|
||
if fs := cCtx.lookupFlagSet(name); fs != nil {
|
||
return lookupUint(name, fs)
|
||
}
|
||
return 0
|
||
}
|
||
|
||
func lookupUint(name string, set *flag.FlagSet) uint {
|
||
f := set.Lookup(name)
|
||
if f != nil {
|
||
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
|
||
if err != nil {
|
||
return 0
|
||
}
|
||
return uint(parsed)
|
||
}
|
||
return 0
|
||
}
|