install_addon.py

###
# #%L
# A Mastodon plugin data allows to show the embryo in Blender.
# %%
# Copyright (C) 2022 - 2025 Matthias Arzt
# %%
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# #L%
###
import os
import ensurepip
import subprocess
import bpy
import sys
import addon_utils


def main():
    print("start installing mastodon blender view addon...")
    install_mastodon_blender_view_addon()
    print("mastodon blender view addon installed")
    print("install pip if needed...")
    install_pip()
    print("pip is installed")
    addon_dir = get_mastodon_blender_view_addon_dir()
    print(f"Installation directory of the Mastodon Blender View addon: {addon_dir}")
    install_dependencies(packages=['grpcio', 'bidict', 'grpcio-tools', 'pandas'], target=os.path.join(addon_dir, "libs"))
    import_dependencies()
    print("dependencies installed")
    compile_grpc_protocol(addon_dir)
    print("google RPC code compiled")


def install_mastodon_blender_view_addon():
    argv = sys.argv
    addon_zip = argv[argv.index('--') + 1]
    bpy.ops.preferences.addon_install(filepath=addon_zip)


def install_pip():
    os.environ.pop("PIP_REQ_TRACKER", None)
    ensurepip.bootstrap()
    os.environ.pop("PIP_REQ_TRACKER", None)


def get_mastodon_blender_view_addon_dir() -> str:
    filename_init_py = [m.__file__ for m in addon_utils.modules() if m.__name__ == "mastodon_blender_view"][0]
    addon_dir = os.path.dirname(filename_init_py)
    return addon_dir


def install_dependencies(packages: list[str], target: str):
    print(f"Install dependencies into folder: {target}")

    subprocess.check_call([get_python_path(), "-m", "pip", "install", "--target", target, *packages])

    if target not in sys.path:  # add addon libs dir to system path
        sys.path.insert(0, target)


def import_dependencies():
    import bidict
    import grpc
    import google.protobuf
    import pandas


def compile_grpc_protocol(addon_dir):
    cmd = [get_python_path(), '-m', 'grpc_tools.protoc', '-I.', '--python_out=.', '--grpc_python_out=.',
           'mastodon_blender_view/mastodon-blender-view.proto']
    cwd = os.path.dirname(addon_dir)
    env = os.environ.copy()
    addon_libs_dir = os.path.join(addon_dir, "libs")
    env["PYTHONPATH"] = addon_libs_dir + os.pathsep + env.get("PYTHONPATH") if "PYTHONPATH" in env else addon_libs_dir
    subprocess.check_output(cmd, cwd=cwd, env=env)

    try:
        from mastodon_blender_view import mastodon_blender_view_pb2
        from mastodon_blender_view import mastodon_blender_view_pb2_grpc
    except ModuleNotFoundError:
        raise Exception("installing google RPC generated code failed")


def get_python_path():
    try:
        # 2.92 and older
        path = bpy.app.binary_path_python
    except AttributeError:
        # 2.93 and later
        path = sys.executable
    return os.path.abspath(path)


main()