diff options
Diffstat (limited to 'pkgs/lib/strings.nix')
| -rw-r--r-- | pkgs/lib/strings.nix | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/lib/strings.nix b/pkgs/lib/strings.nix index 4bd7a5bebde..19d1738182f 100644 --- a/pkgs/lib/strings.nix +++ b/pkgs/lib/strings.nix @@ -155,6 +155,12 @@ rec { # Return true iff string v1 denotes a version older than v2. versionOlder = v1: v2: builtins.compareVersions v2 v1 == 1; + + # Get the version of the specified derivation, as specified in its + # ‘name’ attribute. + getVersion = drv: (builtins.parseDrvName drv.name).version; + + # Extract name with version from URL. Ask for separator which is # supposed to start extension nameFromURL = url: sep: let |