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After cargo 7caa161, which was included in rust 1.43 nightly 2020-02-23 as part of rust 11530de, if you don't have rustc installed in the normal place (which our CI builders don't) then you need to specify RUSTC explicitly during cargo metadata or else the call will fail. In our build system, the RUSTC wasn't being passed through in RunCbindgen.py. Differential Revision: https://phabricator.services.mozilla.com/D68086 --HG-- extra : moz-landing-system : lando
78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import print_function
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import buildconfig
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import mozpack.path as mozpath
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import os
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import subprocess
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import pytoml
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# Try to read the package name or otherwise assume same name as the crate path.
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def _get_crate_name(crate_path):
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try:
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with open(mozpath.join(crate_path, "Cargo.toml")) as f:
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return pytoml.load(f)["package"]["name"]
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except Exception:
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return mozpath.basename(crate_path)
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CARGO_LOCK = mozpath.join(buildconfig.topsrcdir, "Cargo.lock")
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def _generate(output, cbindgen_crate_path, metadata_crate_path,
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in_tree_dependencies):
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env = os.environ.copy()
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env['CARGO'] = str(buildconfig.substs['CARGO'])
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env['RUSTC'] = str(buildconfig.substs['RUSTC'])
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p = subprocess.Popen([
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buildconfig.substs['CBINDGEN'],
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metadata_crate_path,
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"--lockfile",
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CARGO_LOCK,
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"--crate",
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_get_crate_name(cbindgen_crate_path),
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"--cpp-compat"
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], env=env, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stderr = p.communicate()
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if p.returncode != 0:
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print(stdout)
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print(stderr)
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return p.returncode
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output.write(stdout)
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deps = set()
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deps.add(CARGO_LOCK)
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deps.add(mozpath.join(cbindgen_crate_path, "cbindgen.toml"))
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for directory in in_tree_dependencies + (cbindgen_crate_path,):
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for path, dirs, files in os.walk(directory):
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for file in files:
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if os.path.splitext(file)[1] == ".rs":
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deps.add(mozpath.join(path, file))
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return deps
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def generate(output, cbindgen_crate_path, *in_tree_dependencies):
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metadata_crate_path = mozpath.join(buildconfig.topsrcdir,
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"toolkit", "library", "rust")
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return _generate(output, cbindgen_crate_path, metadata_crate_path,
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in_tree_dependencies)
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# Use the binding's crate directory instead of toolkit/library/rust as
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# the metadata crate directory.
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#
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# This is necessary for the bindings inside SpiderMonkey, given that
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# SpiderMonkey tarball doesn't contain toolkit/library/rust and its
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# dependencies.
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def generate_with_same_crate(output, cbindgen_crate_path,
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*in_tree_dependencies):
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return _generate(output, cbindgen_crate_path, cbindgen_crate_path,
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in_tree_dependencies)
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