[feature] update config types to use bytesize.Size (#828)

* update config size types to use bytesize.Size

* submit unchecked-out file ... 🤦

* fix bytesize config var decoding

* bump bytesize version

* update kim's libraries in readme

* update envparse.sh to output more useful errors

* improve envparse.sh

* remove reliance on jq

* instead, use uint64 for bytesize flag types

* remove redundant type

* fix viper unmarshaling

* Update envparsing.sh

* fix envparsing test

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>

internal/config/state.go

@@ -133,6 +133,12 @@ func (st *ConfigState) reloadFromViper() {
 	if err := st.viper.Unmarshal(&st.config, func(c *mapstructure.DecoderConfig) {
 		c.TagName = "name"
 		c.ZeroFields = true // empty the config struct before we marshal values into it
+
+		oldhook := c.DecodeHook
+		c.DecodeHook = mapstructure.ComposeDecodeHookFunc(
+			mapstructure.TextUnmarshallerHookFunc(),
+			oldhook,
+		)
 	}); err != nil {
 		panic(err)
 	}