pkg/

Package cliadapter converts CLI flag state into a fastconf-compatible nested map containing only the flags the user explicitly set on the command line.

Package decoder turns bytes of various encodings (yaml/json/...) into a uniform map[string]any intermediate representation.

Package discovery scans a configuration root and produces a stream of priority-ordered layers (base, overlays, extra overlay axes).

Package feature provides a tiny, allocation-light feature-flag / rollout evaluator that piggybacks on FastConf's strongly-typed configuration.

Package flog wraps *slog.Logger with a zerolog-style fluent API while preserving slog's handler ecosystem.

Package generator hosts FastConf's built-in contracts.Generator implementations.

Package mappath provides dotted-path helpers for map[string]any trees.

Package merger implements Kustomize-style deep merge for map[string]any trees.

Package migration lets FastConf rewrite the merged map from one schema version to another before it is decoded into the strongly typed snapshot.

Package parser exposes the koanf-style Parser slot used at the Manager call site (WithSource(file.New(path), yaml.Parser())).

Package profile implements FastConf's tiny boolean profile-expression language.

Package provider abstracts external configuration sources (env, CLI, KV, Vault, ...).

Package source provides built-in contracts.Source implementations for the koanf-style WithSource(file/http/bytes, parser) call shape.

Package transform provides composable, post-merge / pre-decode transformations on the merged configuration tree.

Package typed contains scalar-value helpers shared by pkg/provider and pkg/mappath.

Package validate hosts reusable validation primitives for FastConf.