weather: cleanups

pkgs/applications/misc/weather/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages }:
+{ stdenv, fetchurl, pythonPackages, installShellFiles }:
 
 stdenv.mkDerivation rec {
   version = "2.4.1";
@@ -9,26 +9,33 @@ stdenv.mkDerivation rec {
     sha256 = "0nf680dl7a2vlgavdhj6ljq8a7lkhvr6zghkpzad53vmilxsndys";
   };
 
-  nativeBuildInputs = [ pythonPackages.wrapPython ];
+  nativeBuildInputs = [
+    installShellFiles
+    pythonPackages.wrapPython
+  ];
 
-  buildInputs = [ pythonPackages.python ];
-
-  phases = [ "unpackPhase" "installPhase" ];
+  dontConfigure = true;
+  dontBuild = true;
 
+  # Upstream doesn't provide a setup.py or alike, so we follow:
+  # http://fungi.yuggoth.org/weather/doc/install.rst#id3
   installPhase = ''
     site_packages=$out/${pythonPackages.python.sitePackages}
-    mkdir -p $out/{share/{man,weather-util},bin,etc} $site_packages
-    cp weather $out/bin/
-    cp weather.py $site_packages/
-    chmod +x $out/bin/weather
-    cp airports overrides.{conf,log} places slist stations zctas zlist zones $out/share/weather-util/
-    cp weatherrc $out/etc
-    cp weather.1 weatherrc.5 $out/share/man/
+    install -Dt $out/bin -m 755 weather
+    install -Dt $site_packages weather.py
+    install -Dt $out/share/weather-util \
+      airports overrides.{conf,log} places slist stations \
+      zctas zlist zones
+    install -Dt $out/etc weatherrc
+
     sed -i \
       -e "s|/etc|$out/etc|g" \
       -e "s|else: default_setpath = \".:~/.weather|&:$out/share/weather-util|" \
       $site_packages/weather.py
+
     wrapPythonPrograms
+
+    installManPage weather.1 weatherrc.5
   '';
 
   meta = with stdenv.lib; {