From d2b467a2de7212b078fb970c70675c55da5038e3 Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Wed, 5 Dec 2018 18:40:06 +0100
Subject: [PATCH 1/2] rWrapper: use runCommand, local build only

This seems more appropriate for a wrapper generator.
---
 pkgs/development/r-modules/wrapper.nix | 36 ++++++++++++--------------
 1 file changed, 16 insertions(+), 20 deletions(-)

diff --git a/pkgs/development/r-modules/wrapper.nix b/pkgs/development/r-modules/wrapper.nix
index d77c24e913d3..76e819501a57 100644
--- a/pkgs/development/r-modules/wrapper.nix
+++ b/pkgs/development/r-modules/wrapper.nix
@@ -1,25 +1,21 @@
-{ stdenv, R, makeWrapper, recommendedPackages, packages }:
+{ runCommand, R, makeWrapper, recommendedPackages, packages }:
 
-stdenv.mkDerivation {
-  name = R.name + "-wrapper";
+runCommand (R.name + "-wrapper") {
+  preferLocalBuild = true;
+  allowSubstitutes = false;
 
-  buildInputs = [makeWrapper R] ++ recommendedPackages ++ packages;
+  buildInputs = [R] ++ recommendedPackages ++ packages;
+
+  nativeBuildInputs = [makeWrapper];
 
   # Make the list of recommended R packages accessible to other packages such as rpy2
-  passthru.recommendedPackages = recommendedPackages;
-
-  unpackPhase = ":";
-
-  installPhase = ''
-    mkdir -p $out/bin
-    cd ${R}/bin
-    for exe in *; do
-      makeWrapper ${R}/bin/$exe $out/bin/$exe \
-        --prefix "R_LIBS_SITE" ":" "$R_LIBS_SITE"
-    done
-  '';
-
-  meta = {
-    platforms = stdenv.lib.platforms.unix;
-  };
+  passthru = { inherit recommendedPackages; };
 }
+''
+mkdir -p $out/bin
+cd ${R}/bin
+for exe in *; do
+  makeWrapper ${R}/bin/$exe $out/bin/$exe \
+    --prefix "R_LIBS_SITE" ":" "$R_LIBS_SITE"
+done
+''

From 21d83e5b1164d1ddac5989168b1501354420b560 Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Wed, 5 Dec 2018 19:04:04 +0100
Subject: [PATCH 2/2] rstudioWrapper: use runCommand, local build only

This seems more appropriate for a wrapper generator.
---
 .../development/r-modules/wrapper-rstudio.nix | 38 +++++++++----------
 1 file changed, 17 insertions(+), 21 deletions(-)

diff --git a/pkgs/development/r-modules/wrapper-rstudio.nix b/pkgs/development/r-modules/wrapper-rstudio.nix
index 8ad3a103c93a..5cbedf403d21 100644
--- a/pkgs/development/r-modules/wrapper-rstudio.nix
+++ b/pkgs/development/r-modules/wrapper-rstudio.nix
@@ -1,15 +1,15 @@
-{ stdenv, R, rstudio, makeWrapper, recommendedPackages, packages, qtbase }:
+{ lib, runCommand, R, rstudio, makeWrapper, recommendedPackages, packages, qtbase }:
 
 let
-  qtVersion = with stdenv.lib.versions; "${major qtbase.version}.${minor qtbase.version}";
+  qtVersion = with lib.versions; "${major qtbase.version}.${minor qtbase.version}";
 in
-stdenv.mkDerivation rec {
+runCommand (rstudio.name + "-wrapper") {
+  preferLocalBuild = true;
+  allowSubstitutes = false;
 
-  name = rstudio.name + "-wrapper";
+  nativeBuildInputs = [makeWrapper];
 
-  buildInputs = [makeWrapper R rstudio] ++ recommendedPackages ++ packages;
-
-  unpackPhase = ":";
+  buildInputs = [R rstudio] ++ recommendedPackages ++ packages;
 
   # rWrapper points R to a specific set of packages by using a wrapper
   # (as in https://nixos.org/nixpkgs/manual/#r-packages) which sets
@@ -20,18 +20,14 @@ stdenv.mkDerivation rec {
   # into an R file (fixLibsR) which achieves the same effect, then
   # uses R_PROFILE_USER to load this code at startup in RStudio.
   fixLibsR = "fix_libs.R";
-  installPhase = ''
-    mkdir $out
-    echo "# Autogenerated by wrapper-rstudio.nix from R_LIBS_SITE" > $out/${fixLibsR}
-    echo -n ".libPaths(c(.libPaths(), \"" >> $out/${fixLibsR}
-    echo -n $R_LIBS_SITE | sed -e 's/:/", "/g' >> $out/${fixLibsR}
-    echo -n "\"))" >> $out/${fixLibsR}
-    echo >> $out/${fixLibsR}
-    makeWrapper ${rstudio}/bin/rstudio $out/bin/rstudio --set R_PROFILE_USER $out/${fixLibsR} \
-      --prefix QT_PLUGIN_PATH : ${qtbase}/lib/qt-${qtVersion}/plugins    
-  '';
-  
-  meta = {
-    platforms = stdenv.lib.platforms.unix;
-  };
 }
+''
+mkdir $out
+echo "# Autogenerated by wrapper-rstudio.nix from R_LIBS_SITE" > $out/$fixLibsR
+echo -n ".libPaths(c(.libPaths(), \"" >> $out/$fixLibsR
+echo -n $R_LIBS_SITE | sed -e 's/:/", "/g' >> $out/$fixLibsR
+echo -n "\"))" >> $out/$fixLibsR
+echo >> $out/$fixLibsR
+makeWrapper ${rstudio}/bin/rstudio $out/bin/rstudio --set R_PROFILE_USER $out/$fixLibsR \
+  --prefix QT_PLUGIN_PATH : ${qtbase}/lib/qt-${qtVersion}/plugins
+''