add candybar package

pkgs/candybar/candybar.cabal

@@ -0,0 +1,27 @@
+cabal-version:      3.0
+name:               candybar
+version:            0.1.0.0
+-- synopsis:
+-- description:
+license:            BSD-3-Clause
+-- license-file:       LICENSE
+author:             sajenim
+maintainer:         its.jassy@pm.me
+-- copyright:
+build-type:         Simple
+-- extra-doc-files:    CHANGELOG.md
+-- extra-source-files:
+
+common warnings
+    ghc-options: -Wall
+                 -threaded
+
+executable candybar
+    import:           warnings
+    main-is:          candybar.hs
+    -- other-modules:
+    -- other-extensions:
+    build-depends:    base,
+                      xmobar
+    hs-source-dirs:   .
+    default-language: Haskell2010

pkgs/candybar/candybar.hs

@@ -0,0 +1,20 @@
+import Xmobar
+
+config :: Config
+config =
+  defaultConfig
+    { font = "DejaVu Sans Mono 9",
+      allDesktops = True,
+      alpha = 200,
+      commands =
+        [ Run XMonadLog,
+          Run $ Memory ["t", "Mem: <usedratio>%"] 10,
+          Run $ Kbd [],
+          Run $ Date "%a %_d %b %Y <fc=#ee9a00>%H:%M:%S</fc>" "date" 10
+        ],
+      template = "%XMonadLog% }{ %kbd% | %date% | %memory%",
+      alignSep = "}{"
+    }
+
+main :: IO ()
+main = xmobar config  -- or: configFromArgs config >>= xmobar

pkgs/candybar/default.nix

@@ -0,0 +1,9 @@
+{ pkgs }:
+
+pkgs.haskellPackages.developPackage {
+  root = ./.;
+  modifier = drv:
+    pkgs.haskell.lib.addBuildTools drv (with pkgs.haskellPackages;
+      [ cabal-install ]
+    );
+}

pkgs/default.nix

@@ -3,4 +3,5 @@
 
 { pkgs ? (import ../nixpkgs.nix) { } }: {
   # example = pkgs.callPackage ./example { };
+  candybar = pkgs.callPackage ./candybar { };
 }