tv: reintroduce directory numbers

1 files changed, 22 insertions, 0 deletions

diff --git a/tv/4lib/default.nix b/tv/4lib/default.nix
new file mode 100644
index 000000000..dbc0c29b7
--- /dev/null
+++ b/tv/4lib/default.nix
@@ -0,0 +1,22 @@
+{ lib, pkgs, ... }:
+
+with lib;
+
+lib // rec {
+
+  git = import ./git.nix {
+    inherit lib pkgs;
+  };
+
+  # "7.4.335" -> "74"
+  majmin = with lib; x : concatStrings (take 2 (splitString "." x));
+
+  shell-escape =
+    let
+      isSafeChar = c: match "[-./0-9_a-zA-Z]" c != null;
+    in
+    stringAsChars (c:
+      if isSafeChar c then c
+      else if c == "\n" then "'\n'"
+      else "\\${c}");
+}