diff options
Diffstat (limited to 'lib/versions.nix')
-rw-r--r-- | lib/versions.nix | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/versions.nix b/lib/versions.nix index 0e9d81ac78b1e..986e7e5f9b37d 100644 --- a/lib/versions.nix +++ b/lib/versions.nix @@ -46,4 +46,19 @@ rec { builtins.concatStringsSep "." (lib.take 2 (splitVersion v)); + /* Pad a version string with zeros to match the given number of components. + + Example: + pad 3 "1.2" + => "1.2.0" + pad 3 "1.3-rc1" + => "1.3.0-rc1" + pad 3 "1.2.3.4" + => "1.2.3" + */ + pad = n: version: let + numericVersion = lib.head (lib.splitString "-" version); + versionSuffix = lib.removePrefix numericVersion version; + in lib.concatStringsSep "." (lib.take n (lib.splitVersion numericVersion ++ lib.genList (_: "0") n)) + versionSuffix; + } |