108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
package env
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import (
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"os"
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"regexp"
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"runtime"
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"strings"
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)
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// GetEditor gets the configured editor by checking environmental
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// variables EDITOR and VISUAL
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func GetEditor() string {
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var editor string
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if os.Getenv("EDITOR") != "" {
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editor = os.Getenv("EDITOR")
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} else if os.Getenv("VISUAL") != "" {
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editor = os.Getenv("VISUAL")
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} /* else {
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// TODO: maybe pick something based on the OS
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} */
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return editor
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}
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// GetConfigDir gets a config directory based from environmental variables + the app name
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//
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// On Windows, %APPDATA%\agedit is used
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//
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// On UNIX-like systems, $XDG_CONFIG_HOME/agedit is tried, if it isn't defined, $HOME/.config/agedit is used
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func GetConfigDir(appname string) string {
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var configdir string
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switch runtime.GOOS {
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case "windows":
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configdir = os.Getenv("APPDATA")
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default:
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fallthrough
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case "darwin":
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// TODO: figure out the proper Mac OS local directories
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fallthrough
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case "linux":
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if confighome := os.Getenv("XDG_CONFIG_HOME"); confighome != "" {
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configdir = confighome
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} else {
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configdir = make_path(os.Getenv("HOME"), ".config")
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}
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}
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return make_path(configdir, appname)
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}
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// GetConfigDir gets a config directory based from environmental variables + the app name
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//
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// On Windows, %LOCALAPPDATA%\agedit is used
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//
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// On UNIX-like systems, $XDG_DATA_HOME/agedit is tried, if it isn't defined, $HOME/.local/share/agedit is used
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func GetDataDir(appname string) string {
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var datadir string
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switch runtime.GOOS {
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case "windows":
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datadir = os.Getenv("LOCALAPPDATA")
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default:
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fallthrough
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case "darwin":
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// TODO: also here
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fallthrough
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case "linux":
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if datahome := os.Getenv("XDG_DATA_HOME"); datahome != "" {
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datadir = datahome
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} else {
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datadir = make_path(os.Getenv("HOME"), "local", "share")
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}
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}
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return make_path(datadir, appname)
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}
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// GetTempDirectory returns the systems temporary directory
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//
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// returns %TEMP% on Windows, /tmp on UNIX-like systems
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func GetTempDirectory() string {
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switch runtime.GOOS {
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case "windows":
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return os.Getenv("TEMP")
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default:
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fallthrough
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case "darwin":
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fallthrough
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case "linux":
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return "/tmp"
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}
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}
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func make_path(paths ...string) string {
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sep := string(os.PathSeparator)
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output := strings.Builder{}
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// add / to the start if it's not already there and we're not on Windows
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if match, err := regexp.Match("^\\w", []byte(paths[0])); err == nil && match && runtime.GOOS != "windows" {
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output.WriteString(sep)
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}
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for _, path := range paths {
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output.WriteString(path + sep)
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}
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return output.String()
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}
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