trash-cli: cleanup

Use wrapper instead of patch.

pkgs/tools/misc/trash-cli/default.nix

@@ -1,7 +1,5 @@
-{ stdenv, fetchFromGitHub, fetchpatch, coreutils
-, python3, python3Packages, substituteAll }:
-
-assert stdenv.isLinux;
+{ stdenv, fetchFromGitHub, fetchpatch, python3, python3Packages
+, lib, makeWrapper, coreutils }:
 
 python3Packages.buildPythonApplication rec {
   name = "trash-cli-${version}";
@@ -16,12 +14,6 @@ python3Packages.buildPythonApplication rec {
   };
 
   patches = [
-    (substituteAll {
-      src = ./nix-paths.patch;
-      df = "${coreutils}/bin/df";
-      libc = "${stdenv.cc.libc.out}/lib/libc.so.6";
-    })
-
     # Fix build on Python 3.6.
     (fetchpatch {
       url = "https://github.com/andreafrancia/trash-cli/commit/a21b80d1e69783bb09376c3f60dd2f2a10578805.patch";
@@ -30,10 +22,19 @@ python3Packages.buildPythonApplication rec {
   ];
 
   buildInputs = with python3Packages; [ nose mock ];
+  nativeBuildInputs = [ makeWrapper ];
+
+  preFixup = ''
+    for bin in $out/bin/*; do
+      wrapProgram $bin \
+        --prefix PATH : ${lib.makeBinPath [ coreutils ]} \
+        --prefix DYLD_LIBRARY_PATH : ${lib.makeSearchPath "lib" (lib.optional (stdenv.hostPlatform.libc == "glibc") (lib.getDev stdenv.cc.libc))}
+    done
+  '';
 
   checkPhase = "nosetests";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = https://github.com/andreafrancia/trash-cli;
     description = "Command line tool for the desktop trash can";
     maintainers = [ maintainers.rycee ];

pkgs/tools/misc/trash-cli/nix-paths.patch

@@ -1,26 +0,0 @@
---- a/trashcli/list_mount_points.py	2014-12-23 10:10:43.808470486 +0100
-+++ a/trashcli/list_mount_points.py	2014-12-23 10:19:04.954796457 +0100
-@@ -12,7 +12,7 @@ def mount_points_from_getmnt():
- 
- def mount_points_from_df():
-     import subprocess
--    df_output = subprocess.Popen(["df", "-P"], stdout=subprocess.PIPE).stdout
-+    df_output = subprocess.Popen(["@df@", "-P"], stdout=subprocess.PIPE).stdout
-     return list(_mount_points_from_df_output(df_output))
- 
- def _mount_points_from_df_output(df_output):
-@@ -46,13 +46,7 @@ def _mounted_filesystems_from_getmnt() :
-                     ("mnt_freq", c_int),       # Dump frequency (in days).
-                     ("mnt_passno", c_int)]     # Pass number for `fsck'.
- 
--    if sys.platform == "cygwin":
--        libc_name = "cygwin1.dll"
--    else:
--        libc_name = find_library("c")
--
--    if libc_name == None :
--        libc_name="/lib/libc.so.6" # fix for my Gentoo 4.0
-+    libc_name = "@libc@"
- 
-     libc = cdll.LoadLibrary(libc_name)
-     libc.getmntent.restype = POINTER(mntent_struct)