mirror of
https://gitea.com/Sirherobrine23/tea.git
synced 2024-08-22 04:27:24 +00:00
176 lines
3.9 KiB
Go
176 lines
3.9 KiB
Go
|
package cli
|
||
|
|
||
|
import (
|
||
|
"encoding/json"
|
||
|
"flag"
|
||
|
"fmt"
|
||
|
"strconv"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
// IntSlice wraps []int to satisfy flag.Value
|
||
|
type IntSlice struct {
|
||
|
slice []int
|
||
|
hasBeenSet bool
|
||
|
}
|
||
|
|
||
|
// NewIntSlice makes an *IntSlice with default values
|
||
|
func NewIntSlice(defaults ...int) *IntSlice {
|
||
|
return &IntSlice{slice: append([]int{}, defaults...)}
|
||
|
}
|
||
|
|
||
|
// TODO: Consistently have specific Set function for Int64 and Float64 ?
|
||
|
// SetInt directly adds an integer to the list of values
|
||
|
func (i *IntSlice) SetInt(value int) {
|
||
|
if !i.hasBeenSet {
|
||
|
i.slice = []int{}
|
||
|
i.hasBeenSet = true
|
||
|
}
|
||
|
|
||
|
i.slice = append(i.slice, value)
|
||
|
}
|
||
|
|
||
|
// Set parses the value into an integer and appends it to the list of values
|
||
|
func (i *IntSlice) Set(value string) error {
|
||
|
if !i.hasBeenSet {
|
||
|
i.slice = []int{}
|
||
|
i.hasBeenSet = true
|
||
|
}
|
||
|
|
||
|
if strings.HasPrefix(value, slPfx) {
|
||
|
// Deserializing assumes overwrite
|
||
|
_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
|
||
|
i.hasBeenSet = true
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
tmp, err := strconv.ParseInt(value, 0, 64)
|
||
|
if err != nil {
|
||
|
return err
|
||
|
}
|
||
|
|
||
|
i.slice = append(i.slice, int(tmp))
|
||
|
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
// String returns a readable representation of this value (for usage defaults)
|
||
|
func (i *IntSlice) String() string {
|
||
|
return fmt.Sprintf("%#v", i.slice)
|
||
|
}
|
||
|
|
||
|
// Serialize allows IntSlice to fulfill Serializer
|
||
|
func (i *IntSlice) Serialize() string {
|
||
|
jsonBytes, _ := json.Marshal(i.slice)
|
||
|
return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
|
||
|
}
|
||
|
|
||
|
// Value returns the slice of ints set by this flag
|
||
|
func (i *IntSlice) Value() []int {
|
||
|
return i.slice
|
||
|
}
|
||
|
|
||
|
// Get returns the slice of ints set by this flag
|
||
|
func (i *IntSlice) Get() interface{} {
|
||
|
return *i
|
||
|
}
|
||
|
|
||
|
// IntSliceFlag is a flag with type *IntSlice
|
||
|
type IntSliceFlag struct {
|
||
|
Name string
|
||
|
Aliases []string
|
||
|
Usage string
|
||
|
EnvVars []string
|
||
|
FilePath string
|
||
|
Required bool
|
||
|
Hidden bool
|
||
|
Value *IntSlice
|
||
|
DefaultText string
|
||
|
HasBeenSet bool
|
||
|
}
|
||
|
|
||
|
// IsSet returns whether or not the flag has been set through env or file
|
||
|
func (f *IntSliceFlag) IsSet() bool {
|
||
|
return f.HasBeenSet
|
||
|
}
|
||
|
|
||
|
// String returns a readable representation of this value
|
||
|
// (for usage defaults)
|
||
|
func (f *IntSliceFlag) String() string {
|
||
|
return FlagStringer(f)
|
||
|
}
|
||
|
|
||
|
// Names returns the names of the flag
|
||
|
func (f *IntSliceFlag) Names() []string {
|
||
|
return flagNames(f)
|
||
|
}
|
||
|
|
||
|
// IsRequired returns whether or not the flag is required
|
||
|
func (f *IntSliceFlag) IsRequired() bool {
|
||
|
return f.Required
|
||
|
}
|
||
|
|
||
|
// TakesValue returns true of the flag takes a value, otherwise false
|
||
|
func (f *IntSliceFlag) TakesValue() bool {
|
||
|
return true
|
||
|
}
|
||
|
|
||
|
// GetUsage returns the usage string for the flag
|
||
|
func (f IntSliceFlag) 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 *IntSliceFlag) GetValue() string {
|
||
|
if f.Value != nil {
|
||
|
return f.Value.String()
|
||
|
}
|
||
|
return ""
|
||
|
}
|
||
|
|
||
|
// Apply populates the flag given the flag set and environment
|
||
|
func (f *IntSliceFlag) Apply(set *flag.FlagSet) error {
|
||
|
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
|
||
|
f.Value = &IntSlice{}
|
||
|
|
||
|
for _, s := range strings.Split(val, ",") {
|
||
|
if err := f.Value.Set(strings.TrimSpace(s)); err != nil {
|
||
|
return fmt.Errorf("could not parse %q as int slice value for flag %s: %s", val, f.Name, err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
f.HasBeenSet = true
|
||
|
}
|
||
|
|
||
|
for _, name := range f.Names() {
|
||
|
if f.Value == nil {
|
||
|
f.Value = &IntSlice{}
|
||
|
}
|
||
|
set.Var(f.Value, name, f.Usage)
|
||
|
}
|
||
|
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
// IntSlice looks up the value of a local IntSliceFlag, returns
|
||
|
// nil if not found
|
||
|
func (c *Context) IntSlice(name string) []int {
|
||
|
if fs := lookupFlagSet(name, c); fs != nil {
|
||
|
return lookupIntSlice(name, c.flagSet)
|
||
|
}
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func lookupIntSlice(name string, set *flag.FlagSet) []int {
|
||
|
f := set.Lookup(name)
|
||
|
if f != nil {
|
||
|
parsed, err := (f.Value.(*IntSlice)).Value(), error(nil)
|
||
|
if err != nil {
|
||
|
return nil
|
||
|
}
|
||
|
return parsed
|
||
|
}
|
||
|
return nil
|
||
|
}
|