zsh: fix history.path issues

- Default value is set to static '$HOME/.zsh_history' -- dotDir is not
prepended anymore
- $HOME is not prepended to the option value
- Ensure history path directory exists

Fixes #886, replaces #427.

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/modules/programs/zsh/history-path-old-custom.nix b/tests/modules/programs/zsh/history-path-old-custom.nix
new file mode 100644
index 00000000000..672ccc81002
--- /dev/null
+++ b/tests/modules/programs/zsh/history-path-old-custom.nix
@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+  config = {
+    home.stateVersion = "19.09";
+    programs.zsh = {
+      enable = true;
+      history.path = "some/directory/zsh_history";
+    };
+
+    nixpkgs.overlays = [
+      (self: super: {
+        zsh = pkgs.writeScriptBin "dummy-zsh" "";
+      })
+    ];
+
+    nmt.script = ''
+      assertFileRegex home-files/.zshrc '^HISTFILE="$HOME/some/directory/zsh_history"$'
+    '';
+  };
+}