passwordFiles: Added

hm/password/default.nix

@@ -6,6 +6,36 @@ in
   config = {
     home.packages = with pkgs; [
       pwgen
+      (pkgs.writeShellApplication {
+        name = "install-passwords";
+        runtimeInputs = [ yq gawk moreutils ];
+        text = (lib.strings.concatLines (map
+          (file: ''
+            (
+            echo "===== Preparing to write ${file.path}"
+            temp="$(mktemp --tmpdir="${builtins.dirOf file.path}")"
+            cat "${file.template}" > "$temp"
+          '' + (lib.strings.concatLines (map
+            (password: (if password.selector == null then ''
+              echo "Reading ${password.path} for substituting ${password.variable}"
+              value="$(pass "${password.path}" | head -n1)"
+            '' else ''
+              echo "Reading ${password.path} -> ${password.selector} for substituting ${password.variable}"
+              value="$(pass "${password.path}" | tail -n +2 | yq -r '.${password.selector}')"
+            '') + ''
+              key="${password.variable}"
+              K="$key" V="$value" awk '{ gsub (ENVIRON["K"], ENVIRON["V"]); print }' "$temp" | sponge "$temp"
+            '')
+            (lib.attrsets.attrValues file.passwords))) + ''
+            echo "Moving the file in place"
+            chown "${file.owner}" "$temp"
+            chmod u=r "$temp"
+            mv -f "$temp" "${file.path}"
+            )
+          '')
+          config.frogeye.passwordFiles)
+        );
+      })
     ];
     programs = {
       bash.shellAliases = {
@@ -16,4 +46,67 @@ in
     xsession.windowManager.i3.config.keybindings."${mod}+c" = "exec --no-startup-id ${config.programs.rofi.pass.package}/bin/rofi-pass --last-used";
     # TODO Try autopass.cr
   };
+  options = {
+    frogeye.passwordFiles =
+      let
+        defaultvar = "@PASSWORD@";
+        pwtype = { name, ... }: {
+          options = {
+            variable = lib.mkOption {
+              type = lib.types.str;
+              default = name;
+              description = "String in the template that will be substituted by the actual password";
+            };
+            path = lib.mkOption {
+              type = lib.types.str;
+              description = "Path to the password store entry";
+            };
+            selector = lib.mkOption {
+              type = lib.types.str;
+              default = null;
+              description = "If set, will parse the password metadata as YML and use selector (yq) instead of the password.";
+            };
+          };
+        };
+        mainConfig = config;
+      in
+      lib.mkOption {
+        default = [ ];
+        type = lib.types.listOf (lib.types.submodule ({ config, ... }: {
+          options = {
+            path = lib.mkOption {
+              type = lib.types.str;
+              description = "Where to place the file.";
+            };
+            owner = lib.mkOption {
+              type = lib.types.str;
+              default = mainConfig.home.username;
+              description = "Who will own the file.";
+            };
+            template = lib.mkOption {
+              type = lib.types.path;
+              default = pkgs.writeTextFile {
+                name = "pwfile-template";
+                text = config.text;
+              };
+              description = "Path to the template used to make the file. Exclusive with `text`.";
+            };
+            text = lib.mkOption {
+              type = lib.types.str;
+              default = defaultvar;
+              description = "Content of the template used to make the file. Exclusive with `template`.";
+            };
+            passwords = lib.mkOption {
+              default = lib.optionalAttrs (config.password != null) { ${defaultvar} = config.password; };
+              type = lib.types.attrsOf (lib.types.submodule pwtype);
+              description = "Paths to passwords that will substitute the variables in the template. Exclusive with `password`";
+            };
+            password = lib.mkOption {
+              type = lib.types.submodule ({ ... }@args: pwtype (args // { name = defaultvar; }));
+              description = "Path to password that will substitute '@PASSWORD@' in the template. Exclusive with `passwords`.";
+            };
+          };
+        }));
+      };
+  };
 }