PonGo (Properties on Go) is a package that converts properties files in complex structures.

The file with the following content, for example:

map.a=11
map.b=22
name=myname
age=33

loaded in struct

struct {
	TheName string `pongo:"name"`
	TheAge  int    `pongo:"age"`
	Map     map[string]int
}

becomes

{TheName:"myname" TheAge:33 Map:map[a:11 b:22]}

PonGo supports the following tags:

timeformat: specifies a time parsing format
inline:		the value is intended as an csv inline array 

A time.Time field is parsed with the following timeformat 2006-01-02 15:04:05, unless the timeformat tag is specified.

A map includes every property that starts with its prefix. The struct

struct {
	Map map[string]string
}

with the file

map.a = asd
map.b = lol

will become

{["a":"asd" "b":"lol"]}

A slice element without inline tag finds the properties with numbers after the slice prefix. The struct

struct {
	Array []string
}

with the file

array.1 = asd
array.2 = lol

will become

{["asd" "lol"]}

PonGo offers an environment feature: it works by simply adding @environment at the end of the property name. Pongo will search for the property with the environment appendix first, if nothing is found it will search the value in the simple property.

Take the following file:

sampleprop@env1 = sampleValue
sampleprop = anotherValue
anotherprop@env2 = a property
anotherprop = the value

Loading the properties with the environment env1 will set the properties to:

sampleprop = sampleValue
anotherprop = the value

Using env2:

sampleprop = anotherValue
anotherprop = a property

And without any environment

sampleprop = anotherValue
anotherprop = the value

See documentation for help.