diff options
| -rw-r--r-- | pkgs/lib/strings.nix | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pkgs/lib/strings.nix b/pkgs/lib/strings.nix index fb2752d97c19..4bd7a5bebde3 100644 --- a/pkgs/lib/strings.nix +++ b/pkgs/lib/strings.nix @@ -155,4 +155,14 @@ rec { # Return true iff string v1 denotes a version older than v2. versionOlder = v1: v2: builtins.compareVersions v2 v1 == 1; + # Extract name with version from URL. Ask for separator which is + # supposed to start extension + nameFromURL = url: sep: let + components = splitString "/" url; + filename = lib.last components; + name = builtins.head (splitString sep filename); + in + assert ! eqStrings name filename; + name; + } |