def main():
pwd = dirname(realpath(__file__))
os.environ['py_ver_str'] = '3.7.5'
os.environ['system'] = 'x86_64-linux'
os.environ['out_file'] = f'{pwd}/overrides.nix'
os.environ['disable_checks'] = 'true'
with open(pwd + "/../mach_nix/provider_defaults.toml") as f:
provider_settings = toml.load(f)
if os.path.isfile("./providers.toml"):
with open(pwd + "./providers.toml") as f:
provider_settings.update(toml.load(f))
provider_settings.update(dict(
# _default = "conda"
))
os.environ['providers'] = json.dumps(provider_settings)
nixpkgs_json = tempfile.mktemp()
cmd = f'nix-build {pwd}/../mach_nix/nix/nixpkgs-json.nix -o {nixpkgs_json} --show-trace'
sp.check_call(cmd, shell=True)
os.environ['nixpkgs_json'] = nixpkgs_json
pypi_deps_db = tempfile.mktemp()
cmd = f'nix-build {pwd}/../mach_nix/nix/deps-db-and-fetcher.nix -A pypi_deps_db_src -o {pypi_deps_db} --show-trace'
sp.check_call(cmd, shell=True)
os.environ['pypi_deps_db_src'] = pypi_deps_db
providers = tempfile.mktemp()
cmd = f'nix-build {pwd}/../mach_nix/nix/lib.nix -A parseProvidersToJson -o {providers} --show-trace'
sp.check_call(cmd, shell=True)
os.environ['providers'] = providers
conda_channels_json = tempfile.mktemp()
cmd = f'nix-build {pwd}/../mach_nix/nix/conda-channels.nix -A condaChannelsJson -o {conda_channels_json} --show-trace'
sp.check_call(cmd, shell=True)
os.environ['conda_channels_json'] = conda_channels_json
for key in ('PYPI_FETCHER_COMMIT', 'PYPI_FETCHER_SHA256'):
with open(f"{pypi_deps_db}/{key}") as f:
os.environ[key.lower()] = f.read()
with open(pwd + "/reqs.txt") as f:
os.environ['requirements'] = f.read()
# generates and writes nix expression into ./debug/expr.nix
start = time()
generate.main()
dur = round(time() - start, 1)
print(f"resolving took: {dur}s")
os.environ['py_ver_str'] = '3.7.5'
os.environ['out_file'] = f'{pwd}/expr.nix'
os.environ['disable_checks'] = 'true'
os.environ['prefer_nixpkgs'] = 'true'
nixpkgs_json = tempfile.mktemp()
cmd = f'nix-build {pwd}/nixpkgs-json.nix -o {nixpkgs_json}'
print(cmd)
sp.check_call(cmd, shell=True)
os.environ['nixpkgs_json'] = nixpkgs_json
pypi_deps_db = tempfile.mktemp()
cmd = f'nix-build {pwd}/pypi-deps-db.nix -o {pypi_deps_db}'
sp.check_call(cmd, shell=True)
os.environ['pypi_deps_db_data_dir'] = pypi_deps_db + "/data"
for key in ('NIXPKGS_COMMIT', 'NIXPKGS_TARBALL_SHA256'):
with open(f"{pwd}/../mach_nix/nix/{key}") as f:
os.environ[key.lower()] = f.read()
for key in ('PYPI_FETCHER_COMMIT', 'PYPI_FETCHER_TARBALL_SHA256'):
with open(f"{pypi_deps_db}/{key}") as f:
os.environ[key.lower()] = f.read()
os.environ['requirements'] = 'requests'
# generates and writes nix expression into ./debug/expr.nix
main()