@ -42,20 +42,34 @@ rec {
toGNUCommandLineShell =
options : attrs : lib . escapeShellArgs ( toGNUCommandLine options attrs ) ;
toGNUCommandLine =
{ mkKey ?
k : if builtins . stringLength k == 1
then " - ${ k } "
else " - - ${ k } "
toGNUCommandLine = {
# how to string-format the option name;
# by default one character is a short option (`-`),
# more than one characters a long option (`--`).
mkOptionName ?
k : if builtins . stringLength k == 1
then " - ${ k } "
else " - - ${ k } " ,
, mkOption ?
k : v : if v == null
then [ ]
else [ ( mkKey k ) ( builtins . toString v ) ]
# how to format a boolean value to a command list;
# by default it’s a flag option
# (only the option name if true, left out completely if false).
mkBool ? k : v : lib . optional v ( mkOptionName k ) ,
, mkBool ? k : v : lib . optional v ( mkKey k )
# how to format a list value to a command list;
# by default the option name is repeated for each value
# and `mkOption` is applied to the values themselves.
mkList ? k : v : lib . concatMap ( mkOption k ) v ,
, mkList ? k : v : lib . concatMap ( mkOption k ) v
# how to format any remaining value to a command list;
# on the toplevel, booleans and lists are handled by `mkBool` and `mkList`,
# though they can still appear as values of a list.
# By default, everything is printed verbatim and complex types
# are forbidden (lists, attrsets, functions). `null` values are omitted.
mkOption ?
k : v : if v == null
then [ ]
else [ ( mkOptionName k ) ( lib . generators . mkValueStringDefault { } v ) ]
} :
options :
let