pyrox.dev
1/* Version string functions. */
2{ lib }:
3
4rec {
5
6 /* Break a version string into its component parts.
7
8 Example:
9 splitVersion "1.2.3"
10 => ["1" "2" "3"]
11 */
12 splitVersion = builtins.splitVersion or (lib.splitString ".");
13
14 /* Get the major version string from a string.
15
16 Example:
17 major "1.2.3"
18 => "1"
19 */
20 major = v: builtins.elemAt (splitVersion v) 0;
21
22 /* Get the minor version string from a string.
23
24 Example:
25 minor "1.2.3"
26 => "2"
27 */
28 minor = v: builtins.elemAt (splitVersion v) 1;
29
30 /* Get the patch version string from a string.
31
32 Example:
33 patch "1.2.3"
34 => "3"
35 */
36 patch = v: builtins.elemAt (splitVersion v) 2;
37
38 /* Get string of the first two parts (major and minor)
39 of a version string.
40
41 Example:
42 majorMinor "1.2.3"
43 => "1.2"
44 */
45 majorMinor = v:
46 builtins.concatStringsSep "."
47 (lib.take 2 (splitVersion v));
48
49 /* Pad a version string with zeros to match the given number of components.
50
51 Example:
52 pad 3 "1.2"
53 => "1.2.0"
54 pad 3 "1.3-rc1"
55 => "1.3.0-rc1"
56 pad 3 "1.2.3.4"
57 => "1.2.3"
58 */
59 pad = n: version: let
60 numericVersion = lib.head (lib.splitString "-" version);
61 versionSuffix = lib.removePrefix numericVersion version;
62 in lib.concatStringsSep "." (lib.take n (lib.splitVersion numericVersion ++ lib.genList (_: "0") n)) + versionSuffix;
63
64}