i3/lock-fancy: switch ot pname+version, cleanup postPatch

pkgs/applications/window-managers/i3/lock-fancy.nix

@@ -11,35 +11,39 @@
 }:
 
 stdenv.mkDerivation rec {
-  rev = "7accfb2aa2f918d1a3ab975b860df1693d20a81a";
   pname = "i3lock-fancy";
-  version = "unstable-2018-11-25_rev${builtins.substring 0 7 rev}";
+  version = "unstable-2018-11-25";
+
   src = fetchFromGitHub {
     owner = "meskarune";
     repo = "i3lock-fancy";
-    inherit rev;
+    rev = "7accfb2aa2f918d1a3ab975b860df1693d20a81a";
     sha256 = "00lqsvz1knb8iqy8lnkn3sf4c2c4nzb0smky63qf48m8za5aw9b1";
   };
-  patchPhase = ''
-    sed -i -e "s|mktemp|${coreutils}/bin/mktemp|" i3lock-fancy
-    sed -i -e "s|'rm -f |'${coreutils}/bin/rm -f |" i3lock-fancy
-    sed -i -e "s|scrot -z |${scrot}/bin/scrot -z |" i3lock-fancy
-    sed -i -e "s|convert |${imagemagick.out}/bin/convert |" i3lock-fancy
-    sed -i -e "s|awk -F|${gawk}/bin/awk -F|" i3lock-fancy
-    sed -i -e "s| awk | ${gawk}/bin/awk |" i3lock-fancy
-    sed -i -e "s|i3lock -i |${i3lock-color}/bin/i3lock-color -i |" i3lock-fancy
-    sed -i -e 's|icon="/usr/share/i3lock-fancy/icons/lockdark.png"|icon="'$out'/share/i3lock-fancy/icons/lockdark.png"|' i3lock-fancy
-    sed -i -e 's|icon="/usr/share/i3lock-fancy/icons/lock.png"|icon="'$out'/share/i3lock-fancy/icons/lock.png"|' i3lock-fancy
-    sed -i -e "s|getopt |${getopt}/bin/getopt |" i3lock-fancy
-    sed -i -e "s|fc-match |${fontconfig.bin}/bin/fc-match |" i3lock-fancy
-    sed -i -e "s|shot=(import -window root)|shot=(${scrot}/bin/scrot -z -o)|" i3lock-fancy
+
+  postPatch = ''
+    sed -i i3lock-fancy \
+      -e "s|mktemp|${coreutils}/bin/mktemp|" \
+      -e "s|'rm -f |'${coreutils}/bin/rm -f |" \
+      -e "s|scrot -z |${scrot}/bin/scrot -z |" \
+      -e "s|convert |${imagemagick.out}/bin/convert |" \
+      -e "s|awk -F|${gawk}/bin/awk -F|" \
+      -e "s| awk | ${gawk}/bin/awk |" \
+      -e "s|i3lock -i |${i3lock-color}/bin/i3lock-color -i |" \
+      -e 's|icon="/usr/share/i3lock-fancy/icons/lockdark.png"|icon="'$out'/share/i3lock-fancy/icons/lockdark.png"|' \
+      -e 's|icon="/usr/share/i3lock-fancy/icons/lock.png"|icon="'$out'/share/i3lock-fancy/icons/lock.png"|' \
+      -e "s|getopt |${getopt}/bin/getopt |" \
+      -e "s|fc-match |${fontconfig.bin}/bin/fc-match |" \
+      -e "s|shot=(import -window root)|shot=(${scrot}/bin/scrot -z -o)|"
     rm Makefile
   '';
+
   installPhase = ''
     mkdir -p $out/bin $out/share/i3lock-fancy/icons
     cp i3lock-fancy $out/bin/i3lock-fancy
     cp icons/lock*.png $out/share/i3lock-fancy/icons
   '';
+
   meta = with lib; {
     description = "i3lock is a bash script that takes a screenshot of the desktop, blurs the background and adds a lock icon and text";
     homepage = "https://github.com/meskarune/i3lock-fancy";