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#!/usr/bin/env python3
# Copyright 2014 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This is a wrapper script to run the Rust compiler. It is needed
because:
- output file name of Rust compilation is not knowable at command
execution time (no, --crate-name can't be used)
- need to delete old crates so nobody uses them by accident
"""
import sys, os, subprocess, glob
def delete_old_crates(target_name, target_type):
if target_type == 'dylib':
(base, suffix) = os.path.splitext(target_name)
crates = glob.glob(base + '-*' + suffix)
crates = [(os.stat(i).st_mtime, i) for i in crates]
[os.unlink(c[1]) for c in sorted(crates)[:-1]]
if target_type == 'lib':
(base, suffix) = os.path.splitext(target_name)
crates = glob.glob(base + '-*' + '.rlib') # Rust does not use .a
crates = [(os.stat(i).st_mtime, i) for i in crates]
[os.unlink(c[1]) for c in sorted(crates)[:-1]]
def invoke_rust(rustc_command):
return subprocess.call(rustc_command, shell=False)
def touch_file(fname):
try:
os.unlink(fname)
except FileNotFoundError:
pass
open(fname, 'w').close()
if __name__ == '__main__':
if len(sys.argv) < 3:
print('This script is internal to Meson. Do not run it on its own.')
print("%s <target name> <target type> <rustc invokation cmd line>")
sys.exit(1)
target_name = sys.argv[1]
target_type = sys.argv[2]
rustc_command = sys.argv[3:]
retval = invoke_rust(rustc_command)
if retval != 0:
sys.exit(retval)
if target_type != "bin":
delete_old_crates(target_name, target_type)
touch_file(target_name)
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