config

type Config struct {
	Meta

	// FormatSpec, if non-empty, qualifies the format of the Content.
	//
	// It is set only if config was obtained through cfgclient guts that does
	// reformatting (e.g. formats text protos into binary protos).
	FormatSpec FormatSpec `json:"formatSpec,omitempty"`

	// Error is not nil if there where troubles fetching this config. Used only
	// by functions that operate with multiple configs at once, such as
	// GetProjectConfigs and GetRefConfigs.
	Error error `json:"error,omitempty"`

	// Content is the actual body of the config file.
	Content string `json:"content,omitempty"`
}

type FormatSpec struct {
	// Formatter is the name of the formatter that produces the content data.
	//
	// An empty string means the original config service format.
	Formatter string

	// Data is additional format data describing the type. It may be empty.
	Data string
}

type Interface interface {
	// GetConfig returns a config at a path in a config set or ErrNoConfig
	// if missing. If metaOnly is true, returned Config struct has only Meta set
	// (and the call is faster).
	GetConfig(ctx context.Context, configSet Set, path string, metaOnly bool) (*Config, error)

	// GetConfigByHash returns the contents of a config, as identified by its
	// content hash, or ErrNoConfig if missing.
	GetConfigByHash(ctx context.Context, contentHash string) (string, error)

	// GetConfigSetLocation returns the URL location of a config set.
	GetConfigSetLocation(ctx context.Context, configSet Set) (*url.URL, error)

	// GetProjectConfigs returns all the configs at the given path in all
	// projects that have such config. If metaOnly is true, returned Config
	// structs have only Meta set (and the call is faster).
	GetProjectConfigs(ctx context.Context, path string, metaOnly bool) ([]Config, error)

	// GetProjects returns all the registered projects in the configuration
	// service.
	GetProjects(ctx context.Context) ([]Project, error)

	// GetRefConfigs returns the config at the given path in all refs of all
	// projects that have such config. If metaOnly is true, returned Config
	// structs have only Meta set (and the call is faster).
	GetRefConfigs(ctx context.Context, path string, metaOnly bool) ([]Config, error)

	// GetRefs returns the list of refs for a project.
	GetRefs(ctx context.Context, projectID string) ([]string, error)

	// ListFiles returns the list of files for a config set.
	ListFiles(ctx context.Context, configSet Set) ([]string, error)
}

type Meta struct {
	// ConfigSet is the config set name (e.g. "projects/<id>") this config
	// belongs to.
	ConfigSet Set `json:"configSet,omitempty"`

	// Path is the filename relative to the root of the config set,
	// without leading slash, e.g. "luci-scheduler.cfg".
	Path string `json:"path,omitempty"`

	// ContentHash can be used to quickly check that content didn't change.
	ContentHash string `json:"contentHash,omitempty"`

	// Revision is git SHA1 of a repository the config was fetched from.
	Revision string `json:"revision,omitempty"`

	// ViewURL is the URL surfaced for viewing the config.
	ViewURL string `json:"view_url,omitempty"`
}

type Project struct {
	// ID is unique project identifier.
	ID string

	// Name is a short friendly display name of the project.
	Name string

	// RepoType specifies in what kind of storage projects configs are stored.
	RepoType RepoType

	// RepoUrl is the location of this project code repository. May be nil if
	// unknown or cannot be parsed.
	RepoURL *url.URL
}

type RepoType string

type Set string