Files
arca/vendor/github.com/spf13/pflag/func.go
Kyle Isom c835358829 Initial implementation of arca, a LUKS volume manager.
Go CLI using cobra with mount, unmount, status, and init subcommands.
Unlocks via udisks2 D-Bus (passphrase/keyfile) or cryptsetup (FIDO2/TPM2)
with ordered method fallback. Includes NixOS-specific LD_LIBRARY_PATH
injection for systemd cryptsetup token plugins.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-24 07:42:38 -07:00

38 lines
1.4 KiB
Go

package pflag
// -- func Value
type funcValue func(string) error
func (f funcValue) Set(s string) error { return f(s) }
func (f funcValue) Type() string { return "func" }
func (f funcValue) String() string { return "" } // same behavior as stdlib 'flag' package
// Func defines a func flag with specified name, callback function and usage string.
//
// The callback function will be called every time "--{name}={value}" (or equivalent) is
// parsed on the command line, with "{value}" as an argument.
func (f *FlagSet) Func(name string, usage string, fn func(string) error) {
f.FuncP(name, "", usage, fn)
}
// FuncP is like Func, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) FuncP(name string, shorthand string, usage string, fn func(string) error) {
var val Value = funcValue(fn)
f.VarP(val, name, shorthand, usage)
}
// Func defines a func flag with specified name, callback function and usage string.
//
// The callback function will be called every time "--{name}={value}" (or equivalent) is
// parsed on the command line, with "{value}" as an argument.
func Func(name string, usage string, fn func(string) error) {
CommandLine.FuncP(name, "", usage, fn)
}
// FuncP is like Func, but accepts a shorthand letter that can be used after a single dash.
func FuncP(name, shorthand string, usage string, fn func(string) error) {
CommandLine.FuncP(name, shorthand, usage, fn)
}