94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
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package xdg
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import (
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"os"
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"path/filepath"
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"strings"
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)
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// App is an aggregation of XDG information for a named application. Useful to
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// propagate app configuration.
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type App struct {
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Name string
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}
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func (a App) path(envVar string, defaultFn func() string, file string) string {
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base := os.Getenv(envVar)
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if base == "" {
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base = defaultFn()
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}
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return filepath.Join(base, a.Name, file)
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}
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// DataPath determines the full path of a data file.
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func (a App) DataPath(file string) string {
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return a.path("XDG_DATA_HOME", DataHome, file)
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}
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// ConfigPath determines the full path of a data file.
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func (a App) ConfigPath(file string) string {
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return a.path("XDG_CONFIG_HOME", ConfigHome, file)
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}
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// CachePath determines the full path of a cached file.
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func (a App) CachePath(file string) string {
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return a.path("XDG_CACHE_HOME", CacheHome, file)
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}
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func (a App) multiPaths(envVar string, defaultFn func() []string, file string) []string {
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var bases []string
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env := os.Getenv(envVar)
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if env != "" {
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bases = strings.Split(env, ":")
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} else {
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bases = defaultFn()
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}
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var dirs []string
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for _, it := range bases {
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dirs = append(dirs, filepath.Join(it, a.Name, file))
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}
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return dirs
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}
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// SystemDataPaths determines system-wide possible paths for a data file.
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func (a App) SystemDataPaths(file string) []string {
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return a.multiPaths("XDG_DATA_DIRS", DataDirs, file)
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}
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// SystemConfigPaths determines system-wide possible paths for a config file.
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func (a App) SystemConfigPaths(file string) []string {
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return a.multiPaths("XDG_CONFIG_DIRS", ConfigDirs, file)
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}
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var defaultApp App
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// SetName for the default application. Used for package-wide functions.
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func SetName(name string) {
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defaultApp.Name = name
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}
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// DataPath determines the full path of a data file.
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func DataPath(file string) string {
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return defaultApp.DataPath(file)
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}
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// ConfigPath determines the full path of a data file.
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func ConfigPath(file string) string {
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return defaultApp.ConfigPath(file)
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}
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// CachePath determines the full path of a cached file.
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func CachePath(file string) string {
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return defaultApp.CachePath(file)
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}
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// SystemDataPaths determines system-wide possible paths for a data file.
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func SystemDataPaths(file string) []string {
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return defaultApp.SystemDataPaths(file)
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}
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// SystemConfigPaths determines system-wide possible paths for a config file.
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func SystemConfigPaths(file string) []string {
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return defaultApp.SystemConfigPaths(file)
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}
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