nixpkgs/pkgs/build-support/rust/sysroot/cargo.py
2020-10-17 01:34:51 -07:00

46 lines
974 B
Python

import os
import toml
rust_src = os.environ['RUSTC_SRC']
orig_cargo = os.environ['ORIG_CARGO'] if 'ORIG_CARGO' in os.environ else None
base = {
'package': {
'name': 'alloc',
'version': '0.0.0',
'authors': ['The Rust Project Developers'],
'edition': '2018',
},
'dependencies': {
'compiler_builtins': {
'version': '0.1.0',
'features': ['rustc-dep-of-std', 'mem'],
},
'core': {
'path': os.path.join(rust_src, 'libcore'),
},
},
'lib': {
'name': 'alloc',
'path': os.path.join(rust_src, 'liballoc/lib.rs'),
},
'patch': {
'crates-io': {
'rustc-std-workspace-core': {
'path': os.path.join(rust_src, 'tools/rustc-std-workspace-core'),
},
},
},
}
if orig_cargo is not None:
with open(orig_cargo, 'r') as f:
src = toml.loads(f.read())
if 'profile' in src:
base['profile'] = src['profile']
out = toml.dumps(base)
with open('Cargo.toml', 'x') as f:
f.write(out)