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blender-package-manager-addon/blenderpack.py

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2.9 KiB
Python
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#!/usr/bin/env python3
# HACK: seems 'requests' module bundled with blender isn't bundled with 'idna' module. So force system python for now
import sys
sys.path.insert(0, '/usr/lib/python3.6/site-packages')
import requests
import json
import os
import ast
import argparse
import zipfile
import logging
log = logging.getLogger(__name__)
def report(msg):
# if __name__ == '__main__':
print("blenderpack:", msg)
def fatal_report(msg, code=1):
report(msg)
exit(code)
def fetch(url):
# TODO: do conditional request
re = requests.get(url)
print(re.json())
def parse_blinfo(source, addon_name="unknown"):
"""Parse a python file and return its bl_info dict, if there is one (else return None)"""
try:
tree = ast.parse(source)
except SyntaxError as ex:
log.warning('Skipping addon: SyntaxError in %s: %s', addon_name, ex)
return None
for body in tree.body:
if body.__class__ != ast.Assign:
continue
if len(body.targets) != 1:
continue
if getattr(body.targets[0], 'id', '') != 'bl_info':
continue
return ast.literal_eval(body.value)
log.warning('Unable to find bl_info dict in %s', addon_name)
return None
def extract_blinfo(path):
"""Extract bl_info dict from addon at path (can be single file, module, or zip)"""
source = None
# get last component of path, even with trailing slash
addon_name = os.path.split(path.rstrip(os.path.sep))[1]
if os.path.isdir(path):
with open(os.path.join(path, '__init__.py' 'r')) as f:
source = f.read()
else:
# HACK: perhaps not the best approach determining filetype..?
try:
with zipfile.ZipFile(path, 'r') as z:
for fname in z.namelist():
# HACK: this seems potentially fragile; depends on zipfile listing root contents first
if fname.endswith('__init__.py'):
source = z.read(fname)
break
except zipfile.BadZipFile:
with open(path, 'r') as f:
source = f.read()
if source == None:
raise RuntimeError("Could not read addon '%s'" % addon_name)
return parse_blinfo(source, addon_name)
def make_repo(path):
"""Make repo.json for files in directory 'path'"""
# try:
for addon in os.listdir(path):
extract_blinfo(os.path.join(path, addon))
# except FileNotFoundError:
# fatal_report("No such file or directory: '%s'" % path)
def main():
pass
# print(args)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Search, install, and manage packages for Blender')
subparsers = parser.add_subparsers()
make = subparsers.add_parser('make')
make.add_argument('path')
make.set_defaults(func=lambda args: make_repo(args.path))
args = parser.parse_args()
args.func(args)
main()