uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/version-management/dvc/default.nix

@@ -0,0 +1,97 @@
+{ lib
+, python3
+, fetchFromGitHub
+, fetchpatch
+, enableGoogle ? false
+, enableAWS ? false
+, enableAzure ? false
+, enableSSH ? false
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "dvc";
+  version = "2.10.2";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "iterative";
+    repo = pname;
+    rev = version;
+    hash = "sha256-boaQSg0jajWQZKB5wvcP2musVR2/pifT4pU64Y5hiQ0=";
+  };
+
+  nativeBuildInputs = with python3.pkgs; [
+    setuptools-scm
+    setuptools-scm-git-archive
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    aiohttp-retry
+    appdirs
+    colorama
+    configobj
+    configobj
+    dictdiffer
+    diskcache
+    distro
+    dpath
+    dvclive
+    dvc-render
+    flatten-dict
+    flufl_lock
+    funcy
+    grandalf
+    nanotime
+    networkx
+    packaging
+    pathspec
+    ply
+    psutil
+    pydot
+    pygtrie
+    pyparsing
+    python-benedict
+    requests
+    rich
+    ruamel-yaml
+    scmrepo
+    shortuuid
+    shtab
+    tabulate
+    toml
+    tqdm
+    typing-extensions
+    voluptuous
+    zc_lockfile
+  ] ++ lib.optional enableGoogle [
+    google-cloud-storage
+  ] ++ lib.optional enableAWS [
+    boto3
+  ] ++ lib.optional enableAzure [
+    azure-storage-blob
+  ] ++ lib.optional enableSSH [
+    paramiko
+  ] ++ lib.optionals (pythonOlder "3.8") [
+    importlib-metadata
+  ] ++ lib.optionals (pythonOlder "3.9") [
+    importlib-resources
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "grandalf==0.6" "grandalf>=0.6" \
+      --replace "scmrepo==0.0.19" "scmrepo"
+    substituteInPlace dvc/daemon.py \
+      --subst-var-by dvc "$out/bin/dcv"
+  '';
+
+  # Tests require access to real cloud services
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Version Control System for Machine Learning Projects";
+    homepage = "https://dvc.org";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ cmcdragonkai fab ];
+  };
+}

pkgs/applications/version-management/dvc/dvc-daemon.patch

@@ -0,0 +1,18 @@
+diff --git a/dvc/daemon.py b/dvc/daemon.py
+index 9854a0e1..fefdd613 100644
+--- a/dvc/daemon.py
++++ b/dvc/daemon.py
+@@ -103,11 +103,8 @@ def daemon(args):
+         logger.debug("skipping launching a new daemon.")
+         return
+ 
+-    cmd = ["daemon", "-q"] + args
+-
+-    env = fix_env()
+-    file_path = os.path.abspath(inspect.stack()[0][1])
+-    env["PYTHONPATH"] = os.path.dirname(os.path.dirname(file_path))
++    cmd = [ "@dvc@" , "daemon", "-q"] + args
++    env = os.environ.copy()
+     env[DVC_DAEMON] = "1"
+ 
+     _spawn(cmd, env)