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rclone
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lib/env/env.go
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albertony
docs: punctuation cleanup
20 окт 2021, 23:56
20 окт 2021, 23:56
e2f47ec
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// Package env contains functions for dealing with environment variables package env import ( "os" "os/user" homedir "github.com/mitchellh/go-homedir" ) // ShellExpandHelp describes what ShellExpand does for inclusion into help const ShellExpandHelp = "\n\nLeading `~` will be expanded in the file name as will environment variables such as `${RCLONE_CONFIG_DIR}`." // ShellExpand replaces a leading "~" with the home directory" and // expands all environment variables afterwards. func ShellExpand(s string) string { if s != "" { if s[0] == '~' { newS, err := homedir.Expand(s) if err == nil { s = newS } } s = os.ExpandEnv(s) } return s } // CurrentUser finds the current user name or "" if not found func CurrentUser() (userName string) { userName = os.Getenv("USER") // If we are making docs just use $USER if userName == "$USER" { return userName } // Try reading using the OS usr, err := user.Current() if err == nil { return usr.Username } // Fall back to reading $USER then $LOGNAME if userName != "" { return userName } return os.Getenv("LOGNAME") }