From 14f3454afd92e1ae37950eb9d8bbb1bf750a1ed9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Touceda?= <chiiph@leap.se>
Date: Wed, 27 Mar 2013 09:09:34 -0300
Subject: Calculate workdir in the launcher, set PythonHome to that

It will look for dependencies in PYTHONHOME/lib
---
 CMakeLists.txt |  2 +-
 src/main.cpp   | 36 +++++++++++++++++++++++-------------
 2 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87185c7..1e43cc9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 2.8.3)
 FIND_PACKAGE(PythonInterp)
 FIND_PACKAGE(PythonLibs)
-FIND_PACKAGE(Boost COMPONENTS python)
+FIND_PACKAGE(Boost COMPONENTS python filesystem system)
 
 INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS} ${PYTHON_INCLUDE_DIRS})
 
diff --git a/src/main.cpp b/src/main.cpp
index 237b282..9db7a2d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,34 +3,44 @@
 #include <string>
 
 #include <boost/python.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
 #include <frameobject.h>
 
-using namespace boost::python;
+namespace py = boost::python;
+namespace fs = boost::filesystem;
 
 int
 main(int argc, char** argv)
 {
   try {
+    fs::path full_path(fs::current_path());
+
     Py_Initialize();
-    object main_module = import("__main__");
-    object global = (main_module.attr("__dict__"));
+
+    Py_SetPythonHome(const_cast<char*>(full_path.string().c_str()));
+
+    py::object main_module = py::import("__main__");
+    py::object global = (main_module.attr("__dict__"));
 
     PySys_SetArgv(argc, argv);
 
-    exec(
-      "import os\n"
+    global["_pwd"] = full_path.string();
+
+    py::exec(
       "import sys\n"
+      "sys.path = [_pwd + '/lib',\n"
+      "            _pwd + '/apps',\n"
+      "            _pwd + '/apps/eip',\n"
+      "            _pwd]\n"
+      "import os\n"
       "import encodings.idna\n" // we need to make sure this is imported
-      "sys.path = [os.path.join(os.getcwd(), 'deps'),\n"
-      "            os.path.join(os.getcwd(), 'apps'),\n"
-      "            os.path.join(os.getcwd(), 'apps', 'eip'),\n"
-      "            os.getcwd()]\n"
       "sys.argv.append('--standalone')\n", global, global);
 
-    exec_file("apps/leap/app.py",
-              global,
-              global);
-  } catch (error_already_set&) {
+    py::exec_file("apps/leap/app.py",
+                  global,
+                  global);
+  } catch (py::error_already_set&) {
     PyErr_PrintEx(0);
     return 1;
   }
-- 
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