variables: init

2 files changed, 20 insertions, 0 deletions

diff --git a/configs/default.nix b/configs/default.nix
index 06fd83a..fb8627d 100644
--- a/configs/default.nix
+++ b/configs/default.nix
@@ -19,6 +19,7 @@
     ./ssh.nix
     ./sshd.nix
     ./tmux.nix
+    ./variables.nix
     ./vim.nix
     ./xdg.nix
     {
diff --git a/configs/variables.nix b/configs/variables.nix
new file mode 100644
index 0000000..cdfaceb
--- /dev/null
+++ b/configs/variables.nix
@@ -0,0 +1,19 @@
+{ config, lib, ... }: {
+  options.hrm.environment.variables = lib.mkOption {
+    type = lib.types.attrsOf lib.types.str;
+    default = {};
+    description = ''
+      This is a stricter version of `environment.variables`, using
+      `escapeShellArg` instead of `"` for quoting.
+
+      Use this when you don't have the need to reference other variables or
+      inject code into `/nix/store/*-set-environment`.  This is also useful
+      for variables that need be used in contexts that don't perform shell
+      initialization, like e.g. `systemd.services.*.environment`;
+    '';
+  };
+  config.environment.variables =
+    lib.mapAttrs
+      (_name: value: ''"${lib.escapeShellArg value}"'')
+      config.hrm.environment.variables;
+}