Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var (
ErrNotPointer = errors.New("dst is not a pointer")
)
Functions ¶
func DefaultUnmarshal ¶
func DefaultUnmarshal(dst Cloneable, args []string, fs *flag.FlagSet) error
DefaultUnmarshal is a higher level wrapper for Unmarshal that automatically parses flags and a .yaml file
func DynamicUnmarshal ¶
func DynamicUnmarshal(dst DynamicCloneable, args []string, fs *flag.FlagSet) error
DynamicUnmarshal handles populating a config based on the following precedence: 1. Defaults provided by the `RegisterFlags` interface 2. Sections populated by dynamic logic. Configs passed to this function must implement ApplyDynamicConfig() 3. Any config options specified directly in the config file 4. Any config options specified on the command line.
Types ¶
type Cloneable ¶
type Cloneable interface {
Clone() flagext.Registerer
}
Cloneable is a config which can be cloned into a flagext.Registerer Contract: the cloned value must not mutate the original.
type DynamicCloneable ¶
type DynamicCloneable interface {
Cloneable
ApplyDynamicConfig() Source
}
DynamicCloneable must be implemented by config structs that can be dynamically unmarshalled
type Source ¶
type Source func(Cloneable) error
Source is a generic configuration source. This function may do whatever is required to obtain the configuration. It is passed a pointer to the destination, which will be something compatible to `json.Unmarshal`. The obtained configuration may be written to this object, it may also contain data from previous sources.
func ConfigFileLoader ¶
func ConfigFileLoader(args []string, name string, strict bool) Source
func Defaults ¶
func Defaults(fs *flag.FlagSet) Source
Defaults registers flags to the flagSet using dst as the flagext.Registerer
func Flags ¶
func Flags(args []string, fs *flag.FlagSet) Source
Flags parses the flag from the command line, setting only user-supplied values on the flagext.Registerer passed to Defaults()
func JSON ¶
func JSON(f *string) Source
JSON returns a Source that opens the supplied `.json` file and loads it.
func YAML ¶
func YAML(f string, expandEnvVars bool, strict bool) Source
YAML returns a Source that opens the supplied `.yaml` file and loads it. When expandEnvVars is true, variables in the supplied '.yaml\ file are expanded using https://pkgo.dev/github.com/drone/envsubst?tab=overview