From 8c05e036ea485166c474f39d46e6f4441baeda0e Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Thu, 16 Jul 2020 19:53:31 +0000
Subject: [PATCH] gitAndTools.git-remote-hg: use buildPythonApplication

This is much cleaner than constructing PYTHONPATH using interpolated
subshells.
---
 .../git-and-tools/git-remote-hg/default.nix        | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix b/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
index 58d9bf80fb3a..dd4e6e011a6e 100644
--- a/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
@@ -1,8 +1,8 @@
-{ stdenv, lib, fetchFromGitHub, mercurial, makeWrapper
+{ stdenv, lib, fetchFromGitHub, python3Packages
 , asciidoc, xmlto, docbook_xsl, docbook_xml_dtd_45, libxslt, libxml2
 }:
 
-stdenv.mkDerivation rec {
+python3Packages.buildPythonApplication rec {
   pname = "git-remote-hg";
   version = "unstable-2020-06-12";
 
@@ -13,17 +13,13 @@ stdenv.mkDerivation rec {
     sha256 = "0dw48vbnk7pp0w6fzgl29mq8fyn52pacbya2w14z9c6jfvh5sha1";
   };
 
-  buildInputs = [ mercurial.python mercurial makeWrapper
+  nativeBuildInputs = [
     asciidoc xmlto docbook_xsl docbook_xml_dtd_45 libxslt libxml2
   ];
-
-  doCheck = false;
-
-  installFlags = [ "HOME=\${out}" "install-doc" ];
+  propagatedBuildInputs = with python3Packages; [ mercurial ];
 
   postInstall = ''
-    wrapProgram $out/bin/git-remote-hg \
-      --prefix PYTHONPATH : "$(echo ${mercurial}/lib/python*/site-packages):$(echo ${mercurial.python}/lib/python*/site-packages)${stdenv.lib.concatMapStrings (x: ":$(echo ${x}/lib/python*/site-packages)") mercurial.pythonPackages or []}"
+    make install-doc prefix=$out
   '';
 
   meta = with lib; {