storedefs

Documentation

Overview

Package storedefs contains definitions used by the store package.

Index

• Variables
• func EnsureDataDir() (string, error)
• type Dir
• type Store

Variables

var ErrEmptyHOME = errors.New("environment variable HOME is empty")

ErrEmptyHOME is the error returned by EnsureDataDir when the environmental variable HOME is empty.

var ErrNoMatchingCmd = errors.New("no matching command line")

ErrNoMatchingCmd is the error returned when a LastCmd or FirstCmd query completes with no result.

var NoBlacklist = map[string]struct{}{}

NoBlacklist is an empty blacklist, to be used in GetDirs.

Functions

func EnsureDataDir

func EnsureDataDir() (string, error)

EnsureDataDir ensures Elvish's data directory exists, creating it if necessary. It returns the path to the data directory (never with a trailing slash) and possible error.

Types

type Dir

type Dir struct {
	Path  string
	Score float64
}

Dir is an entry in the directory history.

type Store

type Store interface {
	NextCmdSeq() (int, error)
	AddCmd(text string) (int, error)
	DelCmd(seq int) error
	Cmd(seq int) (string, error)
	Cmds(from, upto int) ([]string, error)
	NextCmd(from int, prefix string) (int, string, error)
	PrevCmd(upto int, prefix string) (int, string, error)

	AddDir(dir string, incFactor float64) error
	DelDir(dir string) error
	Dirs(blacklist map[string]struct{}) ([]Dir, error)

	SharedVar(name string) (string, error)
	SetSharedVar(name, value string) error
	DelSharedVar(name string) error
}

Store is an interface satisfied by the storage service.