1
0
Fork 1
mirror of https://github.com/NixOS/nixpkgs.git synced 2024-12-15 17:25:11 +00:00
nixpkgs/lib/versions.nix
2018-03-04 06:28:34 -08:00

48 lines
812 B
Nix

/* Version string functions. */
{ lib }:
let
splitVersion = builtins.splitVersion or (lib.splitString ".");
in
rec {
/* Get the major version string from a string.
Example:
major "1.2.3"
=> "1"
*/
major = v: builtins.elemAt (splitVersion v) 0;
/* Get the minor version string from a string.
Example:
minor "1.2.3"
=> "2"
*/
minor = v: builtins.elemAt (splitVersion v) 1;
/* Get the patch version string from a string.
Example:
patch "1.2.3"
=> "3"
*/
patch = v: builtins.elemAt (splitVersion v) 2;
/* Get string of the first two parts (major and minor)
of a version string.
Example:
majorMinor "1.2.3"
=> "1.2"
*/
majorMinor = v:
builtins.concatStringsSep "."
(lib.take 2 (splitVersion v));
}