From b75f75cd5b683b4c9c1e62c6af34ae33284fe29c Mon Sep 17 00:00:00 2001
From: Evils <evils.devils@protonmail.com>
Date: Tue, 5 May 2020 02:08:42 +0200
Subject: [PATCH 1/2] python.pkgs.btrfs: init at v11

---
 .../python-modules/btrfs/default.nix          | 22 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 ++
 2 files changed, 24 insertions(+)
 create mode 100644 pkgs/development/python-modules/btrfs/default.nix

diff --git a/pkgs/development/python-modules/btrfs/default.nix b/pkgs/development/python-modules/btrfs/default.nix
new file mode 100644
index 000000000000..225b26b4d650
--- /dev/null
+++ b/pkgs/development/python-modules/btrfs/default.nix
@@ -0,0 +1,22 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "btrfs";
+  version = "11";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1w92sj47wy53ygz725xr613k32pk5khi0g9lrpp6img871241hrx";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Inspect btrfs filesystems";
+    homepage = "https://github.com/knorrie/python-btrfs";
+    license = licenses.lgpl3Plus;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.evils ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a3db0b8f0c79..4021244995f9 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -557,6 +557,8 @@ in {
 
   browsermob-proxy = disabledIf isPy3k (callPackage ../development/python-modules/browsermob-proxy {});
 
+  btrfs = callPackage ../development/python-modules/btrfs { };
+
   bt_proximity = callPackage ../development/python-modules/bt-proximity { };
 
   bugseverywhere = throw "bugseverywhere has been removed: Abandoned by upstream."; # Added 2019-11-27

From e3a752dfabb4d35058941ccd5abd1bb1034511f3 Mon Sep 17 00:00:00 2001
From: Evils <evils.devils@protonmail.com>
Date: Tue, 5 May 2020 02:09:26 +0200
Subject: [PATCH 2/2] btrfs-heatmap: init at v8

---
 .../filesystems/btrfs-heatmap/default.nix     | 46 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  2 +
 2 files changed, 48 insertions(+)
 create mode 100644 pkgs/tools/filesystems/btrfs-heatmap/default.nix

diff --git a/pkgs/tools/filesystems/btrfs-heatmap/default.nix b/pkgs/tools/filesystems/btrfs-heatmap/default.nix
new file mode 100644
index 000000000000..04d74d78cfde
--- /dev/null
+++ b/pkgs/tools/filesystems/btrfs-heatmap/default.nix
@@ -0,0 +1,46 @@
+{ stdenv, lib
+, fetchFromGitHub
+, python3
+, installShellFiles
+, fetchurl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "btrfs-heatmap";
+  version = "8";
+
+  src = fetchFromGitHub {
+    owner = "knorrie";
+    repo = "btrfs-heatmap";
+    rev = "v${version}";
+    sha256 = "035frvk3s7g18y81srssvm550nfq7jylr7w60nvixidxvrc0yrnh";
+  };
+
+  # man page is currently only in the debian branch
+  # https://github.com/knorrie/btrfs-heatmap/issues/11
+  msrc = fetchurl {
+    url = "https://raw.githubusercontent.com/knorrie/btrfs-heatmap/45d844e12d7f5842ebb99e65d7b968a5e1a89066/debian/man/btrfs-heatmap.8";
+    sha256 = "1md7xc426sc8lq4w29gjd6gv7vjqhcwrqqcr6z39kihvi04d5f6q";
+  };
+
+  buildInputs = [ python3 ];
+  nativeBuildInputs = [ python3.pkgs.wrapPython installShellFiles ];
+
+  outputs = [ "out" "man" ];
+
+  installPhase = ''
+    install -Dm 0755 heatmap.py $out/sbin/btrfs-heatmap
+    installManPage ${msrc}
+
+    buildPythonPath ${python3.pkgs.btrfs}
+    patchPythonScript $out/sbin/btrfs-heatmap
+  '';
+
+  meta = with lib; {
+    description = "Visualize the layout of a mounted btrfs";
+    homepage = "https://github.com/knorrie/btrfs-heatmap";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.evils ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2c84e9d8256b..11c1f3aa6f80 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -860,6 +860,8 @@ in
 
   boulder = callPackage ../tools/admin/boulder { };
 
+  btrfs-heatmap = callPackage ../tools/filesystems/btrfs-heatmap { };
+
   buildbot = with python3Packages; toPythonApplication buildbot;
   buildbot-ui = with python3Packages; toPythonApplication buildbot-ui;
   buildbot-full = with python3Packages; toPythonApplication buildbot-full;