refactor: urfave v2

vendor/github.com/urfave/cli/v2/flag_int64.go

@@ -0,0 +1,108 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Int64Flag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Int64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Int64Flag) 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 *Int64Flag) GetValue() string {
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Int64Flag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%d", f.defaultValue)
+	}
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Int64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Int64Flag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valInt, err := strconv.ParseInt(val, f.Base, 64)
+
+			if err != nil {
+				return fmt.Errorf("could not parse %q as int value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valInt
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Int64Var(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Int64(name, f.Value, f.Usage)
+	}
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Int64Flag) Get(ctx *Context) int64 {
+	return ctx.Int64(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Int64Flag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Int64(f.Name))
+	}
+
+	return nil
+}
+
+// Int64 looks up the value of a local Int64Flag, returns
+// 0 if not found
+func (cCtx *Context) Int64(name string) int64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupInt64(name, fs)
+	}
+	return 0
+}
+
+func lookupInt64(name string, set *flag.FlagSet) int64 {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
+		if err != nil {
+			return 0
+		}
+		return parsed
+	}
+	return 0
+}