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3640ea4c0d
This avoids ninja unnecessarily rebuilding rust targets. Add a check for problems like these to be run on appveyor.
49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
#!/usr/bin/env python
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# Inspired by
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# https://fuchsia.googlesource.com/build/+/master/rust/build_rustc_target.py
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# Copyright 2018 The Fuchsia Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import sys
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import os
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import argparse
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import subprocess
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import util
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# Updates the path of the main target in the depfile to the relative path
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# from base_path build_output_path
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def fix_depfile(depfile_path, base_path, build_output_path):
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# It's important that the fixed-up depfile has the same mtime as before.
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# Ninja relies on it to decide whether to rebuild the target it belongs to.
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stat = os.stat(depfile_path)
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with open(depfile_path, "r") as depfile:
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content = depfile.read()
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content_split = content.split(': ', 1)
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target_path = os.path.relpath(build_output_path, start=base_path)
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new_content = "%s: %s" % (target_path, content_split[1])
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with open(depfile_path, "w") as depfile:
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depfile.write(new_content)
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os.utime(depfile_path, (stat.st_atime, stat.st_mtime))
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def main():
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parser = argparse.ArgumentParser("Compiles a Rust crate")
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parser.add_argument(
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"--depfile",
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help="Path at which the output depfile should be stored",
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required=False)
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parser.add_argument(
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"--output_file",
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help="Path at which the output file should be stored",
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required=False)
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args, rest = parser.parse_known_args()
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util.run(["rustc"] + rest, quiet=True)
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if args.depfile and args.output_file:
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fix_depfile(args.depfile, os.getcwd(), args.output_file)
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if __name__ == '__main__':
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sys.exit(main())
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