confflags

README

conf-reader-flags

The conf reader for Command Line Flags.

License

MIT licensed. See the bundled LICENSE file for more details.

Documentation

Index

• func New(mapFlagKey map[string]string, prefix string, flagSet *pflag.FlagSet) conf.Reader

Examples

• New

Functions

func New

func New(mapFlagKey map[string]string, prefix string, flagSet *pflag.FlagSet) conf.Reader

New creates the Env reader

`mapFlagKey` is a map of the names of the flag and the configuration keys
`prefix` is a default prefix that will be added to all configuration keys

Example

package main

import (
	"context"
	"fmt"

	flag "github.com/spf13/pflag"
	"github.com/sv-tools/conf"

	confflags "github.com/sv-tools/conf-reader-flags"
)

func main() {
	flag.IntP("foo", "f", 1, "testing flag")
	if err := flag.CommandLine.Parse([]string{"--foo=42"}); err != nil {
		panic(err)
	}

	c := conf.New().WithReaders(confflags.New(map[string]string{"foo": "foo"}, "", nil))
	if err := c.Load(context.Background()); err != nil {
		panic(err)
	}

	fmt.Println(c.GetInt("foo"))
}

Output:

42