srcml-caller 0.1.0

srcml_caller, simple python bindings for srcML

srcml_caller

simple bindings for srcML, when used with C++ code.

Works on linux and MacOS.

Provides:

from typing import Optional
import enum


class CodeLanguage(enum.Enum):
    c = enum.auto()            # (= 0)
    c_sharp = enum.auto()      # (= 1)
    c_plus_cplus = enum.auto() # (= 2)
    java = enum.auto()         # (= 3)
    objective_c = enum.auto()  # (= 4)


def to_code(
        xml_str: str,
        encoding_src: str = "utf-8",
        encoding_xml: str = "utf-8"
) -> Optional[str]:
    pass


def to_srcml(
        code: str,
        language: CodeLanguage,
        include_positions: bool = True,
        encoding_src: str = "utf-8",
        encoding_xml: str = "utf-8"
) -> Optional[str]:
    pass

Based on scikit_build_example for litgen

Install instructions

git clone https://github.com/pthom/srcml_caller.git
cd srcml_caller
git submodule update --init # will fetch srcML submodule
pip install -v .

Development build instructions

Install requirements

Linux

Download and install a newer binary version of cmake (cmake 3.24 is required)

For example:

# This is where cmake will be put
MY_BIN_DIR=~/bin

# (select your arch below)
CMAKE_BIN_URL=https://cmake.org/files/v3.25/cmake-3.25.0-linux-x86_64.tar.gz
# CMAKE_BIN_URL=https://cmake.org/files/v3.25/cmake-3.25.0-linux-aarch64.tar.gz
curl -L $CMAKE_BIN_URL  > cmake_new.tgz
tar xvfz cmake_new.tgz
rm cmake_new.tgz
echo "export PATH=$MY_BIN_DIR/cmake-3.25.0-linux-aarch64/bin:$PATH" >> ~/.bashrc
echo "export PATH=$MY_BIN_DIR/cmake-3.25.0-linux-aarch64/bin:$PATH" >> ~/.zshrc

Install requirements

Follow instructions on srcML repo: https://github.com/srcML/srcML/blob/master/BUILD.md

Install requirements for Ubuntu

From https://github.com/srcML/Docker/blob/ubuntu_latest/base/Dockerfile

sudo apt-get update && sudo apt-get install --no-install-recommends -y \
    curl \
    zip \
    g++ \
    make \
    ninja-build \
    libxml2-dev \
    libxml2-utils \
    libxslt1-dev \
    libarchive-dev \
    libssl-dev \
    libcurl4-openssl-dev \
    cpio \
    man \
    file \
    dpkg-dev

You can also run ci_scripts/install_requirements_ubuntu.sh, which does exactly this.

Build

git submodule update --init

Unix and MacOS

python3 -m venv venv
source venv/bin/activate
pip install pybind11
mkdir build
cd build
cmake .. -DPYTHON_EXECUTABLE=../venv/bin/python

Windows

python3 -m venv venv
venv\Scripts\activate
pip install pybind11
mkdir build
cd build
cmake .. -DPYTHON_EXECUTABLE=c:\FULL\PATH\TO\venv\Scripts\python.exe

Windows port advices

This project does not work on windows, mainly to srcML dependencies.

A possible strategy would be to:

• Ask users to install and configure conan:

pip install conan
conan profile new default --detect

• Use conan when running pip. see pyproject.toml which contains:

# Draft in order to install windows deps via conan
# "conan>=1.5",

(conan has the advantage to be callable from pip, since it is a python package)

• Fill the dependencies in conanfile_win_deps.txt

• Call conan install when CMake is invoked:

    execute_process(COMMAND
        conan install ${CMAKE_CURRENT_LIST_DIR}/${conanfile} --build=missing
        RESULT_VARIABLE conan_install_result
        )