TUN-3233: List tunnels support filtering by deleted, name, existed at and id

vendor/github.com/urfave/cli/v2/flag_int_slice.go

@@ -0,0 +1,173 @@
+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.Name, f.Aliases)
+}
+
+// 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 {
+		if slice, ok := f.Value.(*IntSlice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}