Another attempt to eradicate ensureDir

See c556a6ea46.

nixos/modules/services/web-servers/apache-httpd/default.nix

@@ -80,7 +80,7 @@ let
 
   # !!! should be in lib
   writeTextInDir = name: text:
-    pkgs.runCommand name {inherit text;} "ensureDir $out; echo -n \"$text\" > $out/$name";
+    pkgs.runCommand name {inherit text;} "mkdir -p $out; echo -n \"$text\" > $out/$name";
 
 
   enableSSL = any (vhost: vhost.enableSSL) allHosts;
@@ -194,7 +194,7 @@ let
     ) null ([ cfg ] ++ subservices);
 
     documentRoot = if maybeDocumentRoot != null then maybeDocumentRoot else
-      pkgs.runCommand "empty" {} "ensureDir $out";
+      pkgs.runCommand "empty" {} "mkdir -p $out";
 
     documentRootConf = ''
       DocumentRoot "${documentRoot}"

nixos/modules/services/web-servers/apache-httpd/mediawiki.nix

@@ -90,7 +90,7 @@ let
 
     installPhase =
       ''
-        ensureDir $out
+        mkdir -p $out
         cp -r * $out
         cp ${mediawikiConfig} $out/LocalSettings.php
         sed -i 's|/bin/bash|${pkgs.stdenv.shell}|' \
@@ -103,7 +103,7 @@ let
   mediawikiScripts = pkgs.runCommand "mediawiki-${config.id}-scripts"
     { buildInputs = [ pkgs.makeWrapper ]; }
     ''
-      ensureDir $out/bin
+      mkdir -p $out/bin
       for i in changePassword.php createAndPromote.php userOptions.php edit.php nukePage.php update.php; do
         makeWrapper ${php}/bin/php $out/bin/mediawiki-${config.id}-$(basename $i .php) \
           --add-flags ${mediawikiRoot}/maintenance/$i

nixos/modules/services/web-servers/apache-httpd/mercurial.nix

@@ -9,7 +9,7 @@ let
   cgi = pkgs.stdenv.mkDerivation {
     name = "mercurial-cgi";
     buildCommand = ''
-      ensureDir $out
+      mkdir -p $out
       cp -v ${mercurial}/share/cgi-bin/hgweb.cgi $out
       sed -i "s|/path/to/repo/or/config|$out/hgweb.config|" $out/hgweb.cgi
       echo "