Conventions for TRIQS applications

Let us suppose you want to build your own application named ‘application_a’. If you want to use the full functionalities of TRIQS and its c++2py tools, we advise you to follow the conventions below:

Source structure

SRC_DIR/c++: where you put your c++ code

SRC_DIR/c++/foobar/toto_a1.hpp (with class toto_a1 in namespace foobar)

SRC_DIR/python: where you put your python code

SRC_DIR/python/module_a1_desc.py (descriptor for module_a1 with python class TotoA1 wrapping c++ class toto_a1)

in particular, contains:

module = module_(full_name = "module_a1", doc = "doc of module_a1",   app_name="application_a")

module.add_include("foobar/toto_a1.hpp") (i.e. everything is relative to **SRC_DIR**/c++/)

module.use_module("module_b1", "application_b") (#adds **BUILD_DIR**/include/application_b/py_converters and **INSTALL_DIR**/include/application_b/py_converters to module_path_list)

module.generate_code()

...

SRC_DIR/doc: where you put your documentation

SRC_DIR/doc/reference

SRC_DIR/doc/reference/contents.rst

should contain a line ‘.. automodule:: application_a.module_a1’

SRC_DIR/test: where you put your tests

SRC_DIR/test/c++

SRC_DIR/test/python/TotoA1.py

in particular, contains:

import application_a.module_a1 ...

SRC_DIR/test/python/TotoA1.ref.h5

---

Install structure

Reminder:

INSTALL_DIR/include/triqs/

INSTALL_DIR/include/triqs/py_converters

INSTALL_DIR/include/triqs/py_converters/gf.hpp (for instance)

INSTALL_DIR/lib/python2.7/dist-packages/triqs/gf/local/gf.so (for instance)

Your application should be installed with the following structure:

INSTALL_DIR/include/application_a/

INSTALL_DIR/include/application_a/foobar/toto_a1.hpp (with relative includes when applies)

INSTALL_DIR/include/application_a/

INSTALL_DIR/include/application_a/foobar/toto_a1.hpp (with relative includes when applies)

INSTALL_DIR/include/application_a/py_converters/module_a1.hpp (with includes relative to INSTALL_DIR/include/ i.e. starting with “application_a/foobar/toto_a1.hpp

INSTALL_DIR/lib/python2.7/dist-packages/application_a/module_a1.so (importable via import application_a.:blue:module_a1 in a triqs prompt)

INSTALL_DIR/lib/python2.7/dist-packages/application_a/my_functions.py

---

Build structure

BUILD_DIR/build_triqs

BUILD_DIR/c++/

BUILD_DIR/python/

BUILD_DIR/python/application_a/module_a1.so

BUILD_DIR/python/application_a/my_functions.py

BUILD_DIR/python/application_a/__init__.py

BUILD_DIR/python/application_a/module_a1_wrap.cpp #should contain paths relative to SRC_DIR/c++ (e.g. #include “foobar/toto_a1.hpp”)

BUILD_DIR/include/application_a/py_converters/module_a1.hpp (contains paths relative to SRC_DIR/c++ if yet another module in the same

BUILD_DIR/include/application_a/py_converters/module_a1.hpp.to_be_installed (contains paths correct for the installation folder)

BUILD_DIR/doc/

BUILD_DIR/test/python/TotoA1.ref.h5 (copied via CMakeLists)