From c8c6d91b22ac9e7ade783662d41111c0e55147d2 Mon Sep 17 00:00:00 2001
From: David Wood <david@davidtw.co>
Date: Mon, 16 Sep 2019 16:19:42 +0100
Subject: [PATCH 1/2] maintainers: Add `davidtwco`

---
 maintainers/maintainer-list.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 058561eb624..6ba7937211d 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -1480,6 +1480,16 @@
     github = "davidrusu";
     name = "David Rusu";
   };
+  davidtwco = {
+    email = "nix@david.davidtw.co";
+    github = "davidtwco";
+    githubId = 1295100;
+    name = "David Wood";
+    keys = [{
+      longkeyid = "rsa4096/0x01760B4F9F53F154";
+      fingerprint = "5B08 313C 6853 E5BF FA91  A817 0176 0B4F 9F53 F154";
+    }];
+  };
   davorb = {
     email = "davor@davor.se";
     github = "davorb";

From 80ddf729869fe65236a18056c1a751d55efc6013 Mon Sep 17 00:00:00 2001
From: David Wood <david@davidtw.co>
Date: Mon, 16 Sep 2019 16:20:05 +0100
Subject: [PATCH 2/2] pastel: init at 0.5.3

---
 pkgs/applications/misc/pastel/default.nix | 25 +++++++++++++++++++++++
 pkgs/top-level/all-packages.nix           |  4 ++++
 2 files changed, 29 insertions(+)
 create mode 100644 pkgs/applications/misc/pastel/default.nix

diff --git a/pkgs/applications/misc/pastel/default.nix b/pkgs/applications/misc/pastel/default.nix
new file mode 100644
index 00000000000..eac6d131b35
--- /dev/null
+++ b/pkgs/applications/misc/pastel/default.nix
@@ -0,0 +1,25 @@
+{ stdenv, fetchFromGitHub, rustPlatform, Security }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "pastel";
+  version = "0.5.3";
+
+  src = fetchFromGitHub {
+    owner = "sharkdp";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0f54p3pzfp7xrwlqn61l7j41vmgcfph3bhq2khxh5apfwwdx9nng";
+  };
+
+  cargoSha256 = "05yvlm7z3zfn8qd8nb9zpch9xsfzidrpyrgg2vij3h3q095mdm66";
+
+  buildInputs = stdenv.lib.optional stdenv.isDarwin Security;
+
+  meta = with stdenv.lib; {
+    description = "A command-line tool to generate, analyze, convert and manipulate colors";
+    homepage = https://github.com/sharkdp/pastel;
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ davidtwco ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7668880edbf..6327f792219 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1872,6 +1872,10 @@ in
 
   optar = callPackage ../tools/graphics/optar {};
 
+  pastel = callPackage ../applications/misc/pastel {
+    inherit (darwin.apple_sdk.frameworks) Security;
+  };
+
   patdiff = callPackage ../tools/misc/patdiff { };
 
   pbpst = callPackage ../applications/misc/pbpst { };