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environment.go
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environment.go
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package config
import (
"fmt"
"os"
"path"
"runtime"
"strings"
)
var (
EnvVarConfigPath = "BACKREST_CONFIG" // path to config file
EnvVarDataDir = "BACKREST_DATA" // path to data directory
EnvVarBindAddress = "BACKREST_PORT" // port to bind to (default 9898)
EnvVarBinPath = "BACKREST_RESTIC_COMMAND" // path to restic binary (default restic)
)
// ConfigFilePath
// - *nix systems use $XDG_CONFIG_HOME/backrest/config.json
// - windows uses %APPDATA%/backrest/config.json
func ConfigFilePath() string {
if val := os.Getenv(EnvVarConfigPath); val != "" {
return val
}
return path.Join(getConfigDir(), "backrest/config.json")
}
// DataDir
// - *nix systems use $XDG_DATA_HOME/backrest
// - windows uses %APPDATA%/backrest/data
func DataDir() string {
if val := os.Getenv(EnvVarDataDir); val != "" {
return val
}
if val := os.Getenv("XDG_DATA_HOME"); val != "" {
return path.Join(val, "backrest")
}
if runtime.GOOS == "windows" {
return path.Join(getConfigDir(), "backrest/data")
}
return path.Join(getHomeDir(), ".local/share/backrest")
}
func BindAddress() string {
if val := os.Getenv(EnvVarBindAddress); val != "" {
if !strings.Contains(val, ":") {
return ":" + val
}
return val
}
return ":9898"
}
func ResticBinPath() string {
if val := os.Getenv(EnvVarBinPath); val != "" {
return val
}
return ""
}
func getHomeDir() string {
home, err := os.UserHomeDir()
if err != nil {
panic(fmt.Errorf("couldn't determine home directory: %v", err))
}
return home
}
func getConfigDir() string {
if runtime.GOOS == "windows" {
cfgDir, err := os.UserConfigDir()
if err != nil {
panic(fmt.Errorf("couldn't determine config directory: %v", err))
}
return cfgDir
}
if val := os.Getenv("XDG_CONFIG_HOME"); val != "" {
return val
}
return path.Join(getHomeDir(), ".config")
}