revip

Dead-simple configuration loader.

It supports:

• JSON, TOML, YAML and you could add your own format unmarshaler (see Unmarshaler type)
• file, reader and environment sources support, also you could add your own (see Option type and sources.go)
• extendable postprocessing support (defaults, validation, expansion, see Option type and postprocess.go)
• dot-notation to access configuration keys

Godoc

---

example

run

Basic example showing basics about configuration loading:

• default values
• validation rules
• config expansion (loading key from file)
• working with nested types
• unmarshaling from JSON, YAML, TOML

$ cd ./example/basic
$ go run ./main.go
(main.Config) {
 SerialNumber: (int) 1,
 Nested: (*main.NestedConfig)(0xc00000e0c0)({
  Value: (string) (len=11) "hello world",
  Flag: (bool) false
 }),
 MapNested: (map[string]*main.NestedConfig) {
 },
 SliceNested: ([]*main.NestedConfig) {
 },
 StringSlice: ([]string) <nil>,
 IntSlice: ([]int) (len=3 cap=3) {
  (int) 666,
  (int) 777,
  (int) 888
 },
 key: (string) (len=18) "super secret value"
}

Run basic example with some keys befined through environment variables:

environment variables are defined in makefile

$ make
(main.Config) {
 SerialNumber: (int) 2,
 Nested: (*main.NestedConfig)(0xc00000e0c0)({
  Value: (string) (len=12) "\"hello user\"",
  Flag: (bool) false
 }),
 MapNested: (map[string]*main.NestedConfig) {
 },
 SliceNested: ([]*main.NestedConfig) {
 },
 StringSlice: ([]string) <nil>,
 IntSlice: ([]int) (len=3 cap=3) {
  (int) 888,
  (int) 777,
  (int) 666
 },
 key: (string) (len=18) "super secret value"
}

license

public domain