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"""Convert a flit.ini file to pyproject.toml
"""
import argparse
from collections import OrderedDict
import configparser
import os
from pathlib import Path
import tomli_w
from .config import metadata_list_fields
TEMPLATE = """\
[build-system]
requires = ["flit_core >=2,<4"]
build-backend = "flit_core.buildapi"
[tool.flit.metadata]
{metadata}
"""
class CaseSensitiveConfigParser(configparser.ConfigParser):
optionxform = staticmethod(str)
def convert(path):
cp = configparser.ConfigParser()
with path.open(encoding='utf-8') as f:
cp.read_file(f)
ep_file = Path('entry_points.txt')
metadata = OrderedDict()
for name, value in cp['metadata'].items():
if name in metadata_list_fields:
metadata[name] = [l for l in value.splitlines() if l.strip()]
elif name == 'entry-points-file':
ep_file = Path(value)
else:
metadata[name] = value
if 'scripts' in cp:
scripts = OrderedDict(cp['scripts'])
else:
scripts = {}
entrypoints = CaseSensitiveConfigParser()
if ep_file.is_file():
with ep_file.open(encoding='utf-8') as f:
entrypoints.read_file(f)
written_entrypoints = False
with Path('pyproject.toml').open('w', encoding='utf-8') as f:
f.write(TEMPLATE.format(metadata=tomli_w.dumps(metadata)))
if scripts:
f.write('\n[tool.flit.scripts]\n')
f.write(tomli_w.dumps(scripts))
for groupname, group in entrypoints.items():
if not dict(group):
continue
if '.' in groupname:
groupname = '"{}"'.format(groupname)
f.write('\n[tool.flit.entrypoints.{}]\n'.format(groupname))
f.write(tomli_w.dumps(OrderedDict(group)))
written_entrypoints = True
print("Written 'pyproject.toml'")
files = str(path)
if written_entrypoints:
files += ' and ' + str(ep_file)
print("Please check the new file, then remove", files)
def main(argv=None):
ap = argparse.ArgumentParser()
ap.add_argument('-f', '--ini-file', type=Path, default='flit.ini')
args = ap.parse_args(argv)
os.chdir(str(args.ini_file.parent))
convert(Path(args.ini_file.name))
if __name__ == '__main__':
main()
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