From 285632320dda85775699eba6b7eedcc47188bd3a Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 25 May 2021 10:53:04 +0200
Subject: [PATCH 01/15] lib.types.enum: Improve description for lengths 0 and 1

---
 lib/types.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/types.nix b/lib/types.nix
index f47a1f92de72..c35f055e17f5 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -581,7 +581,17 @@ rec {
       in
       mkOptionType rec {
         name = "enum";
-        description = "one of ${concatMapStringsSep ", " show values}";
+        description =
+          # Length 0 or 1 enums may occur in a design pattern with type merging
+          # where an "interface" module declares an empty enum and other modules
+          # provide implementations, each extending the enum with their own
+          # identifier.
+          if values == [] then
+            "impossible (empty enum)"
+          else if builtins.length values == 1 then
+            "value ${show (builtins.head values)} (singular enum)"
+          else
+            "one of ${concatMapStringsSep ", " show values}";
         check = flip elem values;
         merge = mergeEqualOption;
         functor = (defaultFunctor name) // { payload = values; binOp = a: b: unique (a ++ b); };

From a18b422fda67703786ee6101affd604d8debc5c3 Mon Sep 17 00:00:00 2001
From: "R. RyanTM" <ryantm-bot@ryantm.com>
Date: Mon, 5 Jul 2021 01:44:27 +0000
Subject: [PATCH 02/15] kodiPackages.pvr-hdhomerun: 7.1.0 -> 7.1.1

---
 .../video/kodi-packages/pvr-hdhomerun/default.nix             | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/applications/video/kodi-packages/pvr-hdhomerun/default.nix b/pkgs/applications/video/kodi-packages/pvr-hdhomerun/default.nix
index ba1a0241ffe8..7cdc5a0c6351 100644
--- a/pkgs/applications/video/kodi-packages/pvr-hdhomerun/default.nix
+++ b/pkgs/applications/video/kodi-packages/pvr-hdhomerun/default.nix
@@ -2,13 +2,13 @@
 buildKodiBinaryAddon rec {
   pname = "pvr-hdhomerun";
   namespace = "pvr.hdhomerun";
-  version = "7.1.0";
+  version = "7.1.1";
 
   src = fetchFromGitHub {
     owner = "kodi-pvr";
     repo = "pvr.hdhomerun";
     rev = "${version}-${rel}";
-    sha256 = "0gbwjssnd319csq2kwlyjj1rskg19m1dxac5dl2dymvx5hn3zrgm";
+    sha256 = "sha256-mQeeeCOxhUTiUcOJ1OiIiJ+7envAIGO67Bp4EAf4sIE=";
   };
 
   extraBuildInputs = [ jsoncpp libhdhomerun ];

From 63c241d6a7fd1dfd9d6951f41a7d6d9e97040608 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 13 Jul 2021 18:16:35 +0200
Subject: [PATCH 03/15] neo4j: Fix JAVA_HOME

---
 pkgs/servers/nosql/neo4j/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/servers/nosql/neo4j/default.nix b/pkgs/servers/nosql/neo4j/default.nix
index d9c9ddf8752b..0ca16988c874 100644
--- a/pkgs/servers/nosql/neo4j/default.nix
+++ b/pkgs/servers/nosql/neo4j/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
         makeWrapper "$out/share/neo4j/bin/$NEO4J_SCRIPT" \
             "$out/bin/$NEO4J_SCRIPT" \
             --prefix PATH : "${lib.makeBinPath [ jre8 which gawk ]}" \
-            --set JAVA_HOME "$jre8"
+            --set JAVA_HOME "${jre8}"
     done
   '';
 

From c43213bb6784af05faa7155e591400f7435797eb Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 13 Jul 2021 18:24:13 +0200
Subject: [PATCH 04/15] neo4j: Clean up and make jre easy to override

Convention is to use `jre` and make it specific in the callPackage
call.
This way users can override it regardless of changes to the default
neo4j jre.
---
 pkgs/servers/nosql/neo4j/default.nix | 8 +++-----
 pkgs/top-level/all-packages.nix      | 4 +++-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/pkgs/servers/nosql/neo4j/default.nix b/pkgs/servers/nosql/neo4j/default.nix
index 0ca16988c874..9147de6d4a1e 100644
--- a/pkgs/servers/nosql/neo4j/default.nix
+++ b/pkgs/servers/nosql/neo4j/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, makeWrapper, jre8, which, gawk }:
+{ lib, stdenv, fetchurl, makeWrapper, jre, which, gawk }:
 
 with lib;
 
@@ -12,8 +12,6 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ makeWrapper ];
-  buildInputs = [ jre8 which gawk ];
-
 
   installPhase = ''
     mkdir -p "$out/share/neo4j"
@@ -24,8 +22,8 @@ stdenv.mkDerivation rec {
     do
         makeWrapper "$out/share/neo4j/bin/$NEO4J_SCRIPT" \
             "$out/bin/$NEO4J_SCRIPT" \
-            --prefix PATH : "${lib.makeBinPath [ jre8 which gawk ]}" \
-            --set JAVA_HOME "${jre8}"
+            --prefix PATH : "${lib.makeBinPath [ jre which gawk ]}" \
+            --set JAVA_HOME "${jre}"
     done
   '';
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 280283e07619..5bde6bda1b83 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19911,7 +19911,9 @@ in
 
   check_systemd = callPackage ../servers/monitoring/nagios/plugins/check_systemd.nix { };
 
-  neo4j = callPackage ../servers/nosql/neo4j { };
+  neo4j = callPackage ../servers/nosql/neo4j {
+    jre = jre8;
+  };
 
   neo4j-desktop = callPackage ../applications/misc/neo4j-desktop { };
 

From 2ed8c5f4a901c80e0cbf8f930f37022a02be608a Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 13 Jul 2021 18:25:30 +0200
Subject: [PATCH 05/15] neo4j: Use jre8 -> jre8_headless

---
 pkgs/top-level/all-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5bde6bda1b83..f0aeb9dda9c5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19912,7 +19912,7 @@ in
   check_systemd = callPackage ../servers/monitoring/nagios/plugins/check_systemd.nix { };
 
   neo4j = callPackage ../servers/nosql/neo4j {
-    jre = jre8;
+    jre = jre8_headless;
   };
 
   neo4j-desktop = callPackage ../applications/misc/neo4j-desktop { };

From fede9e9ca84abf954bee9314a52c8eead133421c Mon Sep 17 00:00:00 2001
From: Danielle Lancashire <dani@builds.terrible.systems>
Date: Fri, 16 Jul 2021 01:15:26 +0200
Subject: [PATCH 06/15] python3Packages.docker: 4.4.4 -> 5.0.0

---
 pkgs/development/python-modules/docker/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/docker/default.nix b/pkgs/development/python-modules/docker/default.nix
index 5e5071e93086..3c41ccd17324 100644
--- a/pkgs/development/python-modules/docker/default.nix
+++ b/pkgs/development/python-modules/docker/default.nix
@@ -14,11 +14,11 @@
 
 buildPythonPackage rec {
   pname = "docker";
-  version = "4.4.4";
+  version = "5.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "d3393c878f575d3a9ca3b94471a3c89a6d960b35feb92f033c0de36cc9d934db";
+    sha256 = "sha256-PovEdTTgypMx1ywy8ogbsTuT3tC83qs8gz+3z2HAqaU=";
   };
 
   nativeBuildInputs = lib.optional isPy27 mock;

From 8fd04c7261ef3a7b7a84f3be0da1b1e3a8998114 Mon Sep 17 00:00:00 2001
From: Danielle Lancashire <dani@builds.terrible.systems>
Date: Fri, 16 Jul 2021 01:16:24 +0200
Subject: [PATCH 07/15] docker-compose: 1.28.6 -> 1.29.2

---
 pkgs/applications/virtualization/docker-compose/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/applications/virtualization/docker-compose/default.nix b/pkgs/applications/virtualization/docker-compose/default.nix
index cc8936806742..fd67aa554f04 100644
--- a/pkgs/applications/virtualization/docker-compose/default.nix
+++ b/pkgs/applications/virtualization/docker-compose/default.nix
@@ -8,12 +8,12 @@
 }:
 
 buildPythonApplication rec {
-  version = "1.28.6";
+  version = "1.29.2";
   pname = "docker-compose";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1d44906f7ab738ba2d1785130ed31b16111eee6dc5a1dbd7252091dae48c5281";
+    sha256 = "sha256-TIzZ0h0jdBJ5PRi9MxEASe6a+Nqz/iwhO70HM5WbCbc=";
   };
 
   # lots of networking and other fails

From 97031a5fad7679b1a2b7562f61f69765c57ce8c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Silva?= <andrerfosilva@gmail.com>
Date: Fri, 16 Jul 2021 22:14:41 +0100
Subject: [PATCH 08/15] ledger-live-desktop: 2.29.0 -> 2.30.0

---
 pkgs/applications/blockchains/ledger-live-desktop/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/applications/blockchains/ledger-live-desktop/default.nix b/pkgs/applications/blockchains/ledger-live-desktop/default.nix
index 0692f40e35f1..1c6c41a0e721 100644
--- a/pkgs/applications/blockchains/ledger-live-desktop/default.nix
+++ b/pkgs/applications/blockchains/ledger-live-desktop/default.nix
@@ -2,12 +2,12 @@
 
 let
   pname = "ledger-live-desktop";
-  version = "2.29.0";
+  version = "2.30.0";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "https://github.com/LedgerHQ/${pname}/releases/download/v${version}/${pname}-${version}-linux-x86_64.AppImage";
-    sha256 = "1y4xvnwh2mqbc39pmnpgjg8mlx208s2pipm7dazq4bgmay7k9zh0";
+    sha256 = "0xh28m3slzg6bp0fm183m62ydzqkvj384j4dwsfalgz4ndwvy595";
   };
 
   appimageContents = appimageTools.extractType2 {

From 43260afeea3f461d28d899585432cdc8019c7138 Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Fri, 16 Jul 2021 22:22:37 -0400
Subject: [PATCH 09/15] vimPlugins.null-ls-nvim: init at 2021-07-14

---
 pkgs/misc/vim-plugins/generated.nix    | 12 ++++++++++++
 pkgs/misc/vim-plugins/overrides.nix    |  4 ++++
 pkgs/misc/vim-plugins/vim-plugin-names |  1 +
 3 files changed, 17 insertions(+)

diff --git a/pkgs/misc/vim-plugins/generated.nix b/pkgs/misc/vim-plugins/generated.nix
index 9eb3b04dd7fd..734b5b2bcc4d 100644
--- a/pkgs/misc/vim-plugins/generated.nix
+++ b/pkgs/misc/vim-plugins/generated.nix
@@ -3418,6 +3418,18 @@ final: prev:
     meta.homepage = "https://github.com/jlesquembre/nterm.nvim/";
   };
 
+  null-ls-nvim = buildVimPluginFrom2Nix {
+    pname = "null-ls-nvim";
+    version = "2021-07-14";
+    src = fetchFromGitHub {
+      owner = "jose-elias-alvarez";
+      repo = "null-ls.nvim";
+      rev = "56d4b76203d2b442353e25c247f49fa5ca70f42e";
+      sha256 = "0kmgln5ra2lpdvj9866a11l9h04zc1dmvxcw8gbra6f72ars3jwr";
+    };
+    meta.homepage = "https://github.com/jose-elias-alvarez/null-ls.nvim/";
+  };
+
   numb-nvim = buildVimPluginFrom2Nix {
     pname = "numb-nvim";
     version = "2021-07-12";
diff --git a/pkgs/misc/vim-plugins/overrides.nix b/pkgs/misc/vim-plugins/overrides.nix
index 6c2063e0a970..3e19a2891176 100644
--- a/pkgs/misc/vim-plugins/overrides.nix
+++ b/pkgs/misc/vim-plugins/overrides.nix
@@ -399,6 +399,10 @@ self: super: {
     dependencies = with self; [ plenary-nvim ];
   });
 
+  null-ls-nvim = super.null-ls-nvim.overrideAttrs (old: {
+    path = "null-ls.nvim";
+  });
+
   nvim-lsputils = super.nvim-lsputils.overrideAttrs (old: {
     dependencies = with self; [ popfix ];
   });
diff --git a/pkgs/misc/vim-plugins/vim-plugin-names b/pkgs/misc/vim-plugins/vim-plugin-names
index 022809367402..943a27f36040 100644
--- a/pkgs/misc/vim-plugins/vim-plugin-names
+++ b/pkgs/misc/vim-plugins/vim-plugin-names
@@ -258,6 +258,7 @@ jonsmithers/vim-html-template-literals
 joonty/vim-xdebug
 josa42/coc-lua
 josa42/vim-lightline-coc
+jose-elias-alvarez/null-ls.nvim@main
 joshdick/onedark.vim@main
 jpalardy/vim-slime@main
 jparise/vim-graphql

From aabf5dd5f7a122b33ea601bf5546acf4e2909c81 Mon Sep 17 00:00:00 2001
From: Babbaj <babbaj45@gmail.com>
Date: Sat, 17 Jul 2021 23:22:17 -0400
Subject: [PATCH 10/15] looking-glass-client: B3 -> B4

---
 ...ore-maybe-uninitialized-when-O3-is-i.patch | 45 ----------------
 .../looking-glass-client/default.nix          | 52 ++++++++++++-------
 2 files changed, 33 insertions(+), 64 deletions(-)
 delete mode 100644 pkgs/applications/virtualization/looking-glass-client/0001-client-all-fix-more-maybe-uninitialized-when-O3-is-i.patch

diff --git a/pkgs/applications/virtualization/looking-glass-client/0001-client-all-fix-more-maybe-uninitialized-when-O3-is-i.patch b/pkgs/applications/virtualization/looking-glass-client/0001-client-all-fix-more-maybe-uninitialized-when-O3-is-i.patch
deleted file mode 100644
index 82ce050b587a..000000000000
--- a/pkgs/applications/virtualization/looking-glass-client/0001-client-all-fix-more-maybe-uninitialized-when-O3-is-i.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From 95a7293b30ff7b89d615daea00269ed32f4b70a2 Mon Sep 17 00:00:00 2001
-From: Geoffrey McRae <geoff@hostfission.com>
-Date: Tue, 23 Feb 2021 20:25:30 +1100
-Subject: [PATCH] [client] all: fix more `maybe-uninitialized` when `-O3` is in
- use
-
-Closes #475
----
- client/renderers/EGL/egl.c | 3 ++-
- client/src/main.c          | 5 +++--
- 2 files changed, 5 insertions(+), 3 deletions(-)
-
-diff --git a/client/renderers/EGL/egl.c b/client/renderers/EGL/egl.c
-index b7a5644..72ce50d 100644
---- a/client/renderers/EGL/egl.c
-+++ b/client/renderers/EGL/egl.c
-@@ -271,7 +271,8 @@ static void egl_calc_mouse_size(struct Inst * this)
-   if (!this->formatValid)
-     return;
- 
--  int w, h;
-+  int w  = 0, h = 0;
-+
-   switch(this->format.rotate)
-   {
-     case LG_ROTATE_0:
-diff --git a/client/src/main.c b/client/src/main.c
-index f05e929..f5d6fad 100644
---- a/client/src/main.c
-+++ b/client/src/main.c
-@@ -186,8 +186,9 @@ static void updatePositionInfo(void)
-   if (!g_state.haveSrcSize)
-     goto done;
- 
--  float srcW;
--  float srcH;
-+  float srcW = 0.0f;
-+  float srcH = 0.0f;
-+
-   switch(params.winRotate)
-   {
-     case LG_ROTATE_0:
--- 
-2.30.1
-
diff --git a/pkgs/applications/virtualization/looking-glass-client/default.nix b/pkgs/applications/virtualization/looking-glass-client/default.nix
index 345018bbe4ef..0d158cc3f96f 100644
--- a/pkgs/applications/virtualization/looking-glass-client/default.nix
+++ b/pkgs/applications/virtualization/looking-glass-client/default.nix
@@ -1,40 +1,54 @@
-{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, SDL2, SDL2_ttf, spice-protocol
-, fontconfig, libX11, freefont_ttf, nettle, libpthreadstubs, libXau, libXdmcp
-, libXi, libXext, wayland, wayland-protocols, libffi, libGLU, libXScrnSaver
-, expat, libbfd
+
+{ stdenv, lib, fetchFromGitHub, fetchpatch, makeDesktopItem, cmake, pkg-config
+, SDL, SDL2_ttf, freefont_ttf, spice-protocol, nettle, libbfd, fontconfig
+, libXi, libXScrnSaver, libXinerama
+, wayland, wayland-protocols
 }:
 
+let
+  desktopItem = makeDesktopItem {
+    name = "looking-glass-client";
+    desktopName = "Looking Glass Client";
+    type = "Application";
+    exec = "looking-glass-client";
+    icon = "lg-logo";
+    terminal = true;
+  };
+in
 stdenv.mkDerivation rec {
   pname = "looking-glass-client";
-  version = "B3";
+  version = "B4";
 
   src = fetchFromGitHub {
     owner = "gnif";
     repo = "LookingGlass";
     rev = version;
-    sha256 = "1vmabjzn85p0brdian9lbpjq39agzn8k0limn8zjm713lh3n3c0f";
+    sha256 = "0fwmz0l1dcfwklgvxmv0galgj2q3nss90kc3jwgf6n80x27rsnhf";
     fetchSubmodules = true;
   };
 
   nativeBuildInputs = [ cmake pkg-config ];
 
   buildInputs = [
-    SDL2 SDL2_ttf spice-protocol fontconfig libX11 freefont_ttf nettle
-    libpthreadstubs libXau libXdmcp libXi libXext wayland wayland-protocols
-    libffi libGLU libXScrnSaver expat libbfd
+    SDL SDL2_ttf freefont_ttf spice-protocol
+    libbfd nettle fontconfig
+    libXi libXScrnSaver libXinerama
+    wayland wayland-protocols
   ];
 
-  patches = [
-    # error: ‘h’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
-    # Fixed upstream in master in 8771103abbfd04da9787dea760405364af0d82de, but not in B3.
-    # Including our own patch here since upstream commit patch doesnt apply cleanly on B3
-    ./0001-client-all-fix-more-maybe-uninitialized-when-O3-is-i.patch
-  ];
-  patchFlags = "-p2";
-
-  sourceRoot = "source/client";
   NIX_CFLAGS_COMPILE = "-mavx"; # Fix some sort of AVX compiler problem.
 
+  postUnpack = ''
+    echo $version > source/VERSION
+    export sourceRoot="source/client"
+  '';
+
+  postInstall = ''
+    mkdir -p $out/share/pixmaps
+    ln -s ${desktopItem}/share/applications $out/share/
+    cp $src/resources/lg-logo.png $out/share/pixmaps
+  '';
+
   meta = with lib; {
     description = "A KVM Frame Relay (KVMFR) implementation";
     longDescription = ''
@@ -46,7 +60,7 @@ stdenv.mkDerivation rec {
     '';
     homepage = "https://looking-glass.io/";
     license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ alexbakker ];
+    maintainers = with maintainers; [ alexbakker babbaj ];
     platforms = [ "x86_64-linux" ];
   };
 }

From 6ec2fcefd296afd0bd6952e11589662b7e9415d0 Mon Sep 17 00:00:00 2001
From: Pavol Rusnak <pavol@rusnak.io>
Date: Sun, 18 Jul 2021 12:26:11 +0200
Subject: [PATCH 11/15] python3Packages.h2: fix typo (pythonImportCheck ->
 pythonImportsCheck)

---
 pkgs/development/python-modules/h2/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/h2/default.nix b/pkgs/development/python-modules/h2/default.nix
index fccc16432168..fcd283621493 100644
--- a/pkgs/development/python-modules/h2/default.nix
+++ b/pkgs/development/python-modules/h2/default.nix
@@ -39,7 +39,7 @@ buildPythonPackage rec {
     hypothesis
   ];
 
-  pythonImportCheck = [
+  pythonImportsCheck = [
     "h2.connection"
     "h2.config"
   ];

From 986862fc8f3dfce7c67efd4efe016987d3654534 Mon Sep 17 00:00:00 2001
From: Pavol Rusnak <pavol@rusnak.io>
Date: Sun, 18 Jul 2021 12:26:49 +0200
Subject: [PATCH 12/15] python3Packages.flask-restx: fix typo
 (pythonImportCheck -> pythonImportsCheck)

---
 pkgs/development/python-modules/flask-restx/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/flask-restx/default.nix b/pkgs/development/python-modules/flask-restx/default.nix
index 4d0d89d0f146..556317ed41f3 100644
--- a/pkgs/development/python-modules/flask-restx/default.nix
+++ b/pkgs/development/python-modules/flask-restx/default.nix
@@ -49,7 +49,7 @@ buildPythonPackage rec {
     "--deselect=tests/test_logging.py::LoggingTest::test_override_app_level"
   ];
 
-  pythonImportCheck = [ "flask_restx" ];
+  pythonImportsCheck = [ "flask_restx" ];
 
   meta = with lib; {
     homepage = "https://flask-restx.readthedocs.io/en/${version}/";

From 703b9b144c5b1ed5bc5057c9277c85f00e801d78 Mon Sep 17 00:00:00 2001
From: Luflosi <luflosi@luflosi.de>
Date: Wed, 14 Jul 2021 18:04:05 +0200
Subject: [PATCH 13/15] nodePackages.postcss-cli: add passthru.tests

---
 pkgs/development/node-packages/default.nix    |  5 +++
 .../package-tests/postcss-cli.nix             | 45 +++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 pkgs/development/node-packages/package-tests/postcss-cli.nix

diff --git a/pkgs/development/node-packages/default.nix b/pkgs/development/node-packages/default.nix
index c25f3a801ff2..498f41bc1b3f 100644
--- a/pkgs/development/node-packages/default.nix
+++ b/pkgs/development/node-packages/default.nix
@@ -276,6 +276,11 @@ let
           --prefix NODE_PATH : ${self.postcss}/lib/node_modules \
           --prefix NODE_PATH : ${self.autoprefixer}/lib/node_modules
       '';
+      passthru.tests = {
+        simple-execution = pkgs.callPackage ./package-tests/postcss-cli.nix {
+          inherit (self) postcss-cli;
+        };
+      };
       meta.mainProgram = "postcss";
     };
 
diff --git a/pkgs/development/node-packages/package-tests/postcss-cli.nix b/pkgs/development/node-packages/package-tests/postcss-cli.nix
new file mode 100644
index 000000000000..521509e7f43b
--- /dev/null
+++ b/pkgs/development/node-packages/package-tests/postcss-cli.nix
@@ -0,0 +1,45 @@
+{ runCommand, postcss-cli }:
+
+let
+  inherit (postcss-cli) packageName version;
+in
+
+runCommand "${packageName}-tests" { meta.timeout = 60; }
+  ''
+    # get version of installed program and compare with package version
+    claimed_version="$(${postcss-cli}/bin/postcss --version)"
+    if [[ "$claimed_version" != "${version}" ]]; then
+      echo "Error: program version does not match package version ($claimed_version != ${version})"
+      exit 1
+    fi
+
+    # run basic help command
+    ${postcss-cli}/bin/postcss --help > /dev/null
+
+    # basic autoprefixer test
+    config_dir="$(mktemp -d)"
+    clean_up() {
+      rm -rf "$config_dir"
+    }
+    trap clean_up EXIT
+    echo "
+      module.exports = {
+        plugins: {
+          'autoprefixer': { overrideBrowserslist: 'chrome 40' },
+        },
+      }
+    " > "$config_dir/postcss.config.js"
+    input='a{ user-select: none; }'
+    expected_output='a{ -webkit-user-select: none; user-select: none; }'
+    actual_output="$(echo $input | ${postcss-cli}/bin/postcss --no-map --config $config_dir)"
+    if [[ "$actual_output" != "$expected_output" ]]; then
+      echo "Error: autoprefixer did not output the correct CSS:"
+      echo "$actual_output"
+      echo "!="
+      echo "$expected_output"
+      exit 1
+    fi
+
+    # needed for Nix to register the command as successful
+    touch $out
+  ''

From 23dd37dd5ed22cc0ad296698330a9ecd1e26c16c Mon Sep 17 00:00:00 2001
From: Romanos Skiadas <rom.skiad@gmail.com>
Date: Sat, 17 Jul 2021 18:02:45 +0300
Subject: [PATCH 14/15] rustPlatform.importCargoLock: add an assert for old
 Cargo.locks

near the end of 2019, the default Cargo.lock format was changed to
[[package]]
checksum = ...

This is what importCargoLock assumes. If the crate had not been `cargo
update`'d with a more recent toolchain than the one with the new
format as default, importCargoLock would fail when trying to access
pkg.checksum.

I ran into such a case (shamefully, in my own crate) and it took me a
while to figure out what was going on, so here is an assert with a
more user friendly message and a hint.
---
 pkgs/build-support/rust/import-cargo-lock.nix | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/pkgs/build-support/rust/import-cargo-lock.nix b/pkgs/build-support/rust/import-cargo-lock.nix
index 244572f79e80..83f4e0df4f2d 100644
--- a/pkgs/build-support/rust/import-cargo-lock.nix
+++ b/pkgs/build-support/rust/import-cargo-lock.nix
@@ -63,11 +63,19 @@ let
 
   # We can't use the existing fetchCrate function, since it uses a
   # recursive hash of the unpacked crate.
-  fetchCrate = pkg: fetchurl {
-    name = "crate-${pkg.name}-${pkg.version}.tar.gz";
-    url = "https://crates.io/api/v1/crates/${pkg.name}/${pkg.version}/download";
-    sha256 = pkg.checksum;
-  };
+  fetchCrate = pkg:
+    assert lib.assertMsg (pkg ? checksum) ''
+      Package ${pkg.name} does not have a checksum.
+      Please note that the Cargo.lock format where checksums used to be listed
+      under [metadata] is not supported.
+      If that is the case, running `cargo update` with a recent toolchain will
+      automatically update the format along with the crate's depenendencies.
+    '';
+    fetchurl {
+      name = "crate-${pkg.name}-${pkg.version}.tar.gz";
+      url = "https://crates.io/api/v1/crates/${pkg.name}/${pkg.version}/download";
+      sha256 = pkg.checksum;
+    };
 
   # Fetch and unpack a crate.
   mkCrate = pkg:

From b3d80503cfa3e5b8513d47f91ac1a2025e81141c Mon Sep 17 00:00:00 2001
From: Kid <44045911+kidonng@users.noreply.github.com>
Date: Sun, 18 Jul 2021 21:24:03 +0800
Subject: [PATCH 15/15] du-dust: add meta.mainProgram

---
 pkgs/tools/misc/dust/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/tools/misc/dust/default.nix b/pkgs/tools/misc/dust/default.nix
index dc8dc5af97c3..97b98eea4f9a 100644
--- a/pkgs/tools/misc/dust/default.nix
+++ b/pkgs/tools/misc/dust/default.nix
@@ -25,5 +25,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/bootandy/dust";
     license = licenses.asl20;
     maintainers = with maintainers; [ infinisil SuperSandro2000 ];
+    mainProgram = "dust";
   };
 }