From d4c0f93e1d61960e6bd534ad29fc84a1190a8ff4 Mon Sep 17 00:00:00 2001
From: Quentin Aristote <quentin@aristote.fr>
Date: Mon, 20 Sep 2021 21:37:34 +0200
Subject: use lib.optional* functions

---
 home/config/i3/keybindings.nix   | 23 +++++++----------
 home/config/i3/startup.nix       | 40 ++++++++++-------------------
 home/pkgs/lockscreen/default.nix | 55 +++++++++++++++++-----------------------
 3 files changed, 45 insertions(+), 73 deletions(-)

(limited to 'home')

diff --git a/home/config/i3/keybindings.nix b/home/config/i3/keybindings.nix
index b35dc8a..5efdeaa 100644
--- a/home/config/i3/keybindings.nix
+++ b/home/config/i3/keybindings.nix
@@ -34,20 +34,15 @@ in {
              $(( $(${brightnessctlKbd} max) - $(${brightnessctlKbd} get) ))
       '';
       "Print" = "exec xfce4-screenshooter";
-    } // (if backgroundImage != null then {
+    } // (lib.optionalAttrs (backgroundImage != null) {
       "${modifier}+l" = "exec ${lockscreen}/bin/lockscreen.sh";
-    } else
-      { }) // (if config.programs.alacritty.enable then {
-        "${modifier}+Return" = "exec ${pkgs.alacritty}/bin/alacritty";
-      } else
-        { }) // (if config.programs.rofi.enable then {
-          "${modifier}+d" = ''exec "${rofi} -modi drun,run,window -show drun"'';
-          "${modifier}+Shift+d" = "exec ${rofi} -show window";
-        } else
-          { }) // (if config.services.emacs.client.enable then {
-            "${modifier}+Control+r" =
-              "exec systemctl --user restart emacs.service";
-          } else
-            { }));
+    }) // (lib.optionalAttrs config.programs.alacritty.enable {
+      "${modifier}+Return" = "exec ${pkgs.alacritty}/bin/alacritty";
+    }) // (lib.optionalAttrs config.programs.rofi.enable {
+      "${modifier}+d" = ''exec "${rofi} -modi drun,run,window -show drun"'';
+      "${modifier}+Shift+d" = "exec ${rofi} -show window";
+    }) // (lib.optionalAttrs config.services.emacs.client.enable {
+      "${modifier}+Control+r" = "exec systemctl --user restart emacs.service";
+    }));
   };
 }
diff --git a/home/config/i3/startup.nix b/home/config/i3/startup.nix
index 3c7cdf3..cdad53c 100644
--- a/home/config/i3/startup.nix
+++ b/home/config/i3/startup.nix
@@ -6,31 +6,17 @@ in {
     autostart = { command, always ? false, notification ? false }: {
       inherit command always notification;
     };
-  in (if (config.services.redshift.enable) then
-    [ (autostart { command = "systemctl --user start redshift"; }) ]
-  else
-    [ ]) ++ (if background-image != null then
-      [
-        (autostart {
-          command = "${pkgs.feh}/bin/feh --bg-scale ${background-image}";
-        })
-      ]
-    else
-      [ ]) ++ (if config.services.screen-locker.enable then
-        [
-          (autostart {
-            command =
-              "systemctl --user xidlehook.service";
-          })
-        ]
-      else
-        [ ]) ++ (if config.services.emacs.enable then
-          [ (autostart { command = "systemctl --user start emacs.service"; }) ]
-        else
-          [ ]) ++ [
-            # Launch frequently used apps
-            (autostart { command = "thunderbird"; })
-            (autostart { command = "signal-desktop"; })
-            (autostart { command = ''i3-msg "workspace 10; exec keepassxc"''; })
-          ];
+  in (lib.optional config.services.redshift.enable
+    (autostart { command = "systemctl --user start redshift"; }))
+++ (lib.optional (background-image != null) (autostart {
+    command = "${pkgs.feh}/bin/feh --bg-scale ${background-image}";
+  })) ++ (lib.optional config.services.xidlehook.enable
+    (autostart { command = "systemctl --user xidlehook.service"; }))
+  ++ (lib.optional config.services.emacs.enable
+    (autostart { command = "systemctl --user start emacs.service"; })) ++ [
+      # Launch frequently used apps
+      (autostart { command = "thunderbird"; })
+      (autostart { command = "signal-desktop"; })
+      (autostart { command = ''i3-msg "workspace 10; exec keepassxc"''; })
+    ];
 }
diff --git a/home/pkgs/lockscreen/default.nix b/home/pkgs/lockscreen/default.nix
index b36b08b..4da4743 100644
--- a/home/pkgs/lockscreen/default.nix
+++ b/home/pkgs/lockscreen/default.nix
@@ -1,37 +1,28 @@
 { pkgs, backgroundImage ? null, resolution ? "1920x1080" }:
 
 let useBackgroundImage = backgroundImage != null;
-in pkgs.runCommand "lockscreen" {
-  buildInputs = with pkgs;
-    [
-      # xorg.xdpyinfo
-    ];
-  envVariable = true;
-} (''
+in pkgs.runCommand "lockscreen" { envVariable = true; } (''
   mkdir -p $out/{bin,share}
-'' + (if useBackgroundImage then ''
+'' + (lib.optionalString useBackgroundImage ''
   ${pkgs.imagemagick}/bin/convert ${backgroundImage} -resize ${resolution} -blur 0x5 RGB:$out/share/lockscreen.png
-'' else
-  "") + ''
-        echo > $out/bin/lockscreen.sh \
-    	  "export PATH=$PATH
-        ${pkgs.i3lock-color}/bin/i3lock-color \\
-        '' + (if useBackgroundImage then ''
-      --raw ${resolution}:rgb \\
-      --image $out/share/lockscreen.png \\
-    '' else
-      "") + ''
-        --no-unlock-indicator \\
-        --composite \\
-        --clock \\
-        --ignore-empty-password \\
-        --time-color=FFFFFFFF \\
-        --date-color=00000000 \\
-        --time-size=100"
-      '' + (if useBackgroundImage then ''
-        chmod 444 $out/share/lockscreen.png
-      '' else
-        "") + ''
-          chmod 555 $out/bin/lockscreen.sh
-          chmod 555 $out/{bin,share}
-        '')
+'') + ''
+      echo > $out/bin/lockscreen.sh \
+  	  "export PATH=$PATH
+      ${pkgs.i3lock-color}/bin/i3lock-color \\
+      '' + (lib.optionalString useBackgroundImage ''
+    --raw ${resolution}:rgb \\
+    --image $out/share/lockscreen.png \\
+  '') + ''
+    --no-unlock-indicator \\
+    --composite \\
+    --clock \\
+    --ignore-empty-password \\
+    --time-color=FFFFFFFF \\
+    --date-color=00000000 \\
+    --time-size=100"
+  '' + (lib.optionalString useBackgroundImage ''
+    chmod 444 $out/share/lockscreen.png
+  '') + ''
+    chmod 555 $out/bin/lockscreen.sh
+    chmod 555 $out/{bin,share}
+  '')
-- 
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