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f032c0c3c9
The default configuration recommended here[1], while being a good
generic default, it doesn't quite work for mozilla-central as that peeks
the closest ancestor directory with a `Cargo.toml`.
For example, when editing under `servo/components/style`, it'd try to
use that directory as a project root and fail like:
```
0: Failed to run `cargo metadata --manifest-path /home/emilio/src/moz/gecko/servo/components/style/Cargo.toml`
1: Error during execution of `cargo metadata`: Updating crates.io index
error: failed to get `servo_atoms` as a dependency of package `style v0.0.1 (/home/emilio/src/moz/gecko/servo/components/style)`
Caused by:
failed to load source for dependency `servo_atoms`
```
Instead, we want to override it using the `'project_directory'` setting
so that we hit this path[2] and it works out of the box.
[1]: https://rust-analyzer.github.io/manual.html#youcompleteme
[2]: 63db7ea379/ycmd/completers/language_server/language_server_completer.py (L1914-L1916)
Differential Revision: https://phabricator.services.mozilla.com/D79938
68 lines
2.0 KiB
Python
68 lines
2.0 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 absolute_import, print_function
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import json
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import os
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import shlex
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import subprocess
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import sys
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old_bytecode = sys.dont_write_bytecode
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sys.dont_write_bytecode = True
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path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'mach'))
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# If mach is not here, we're on the objdir go to the srcdir.
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if not os.path.exists(path):
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with open(os.path.join(os.path.dirname(__file__), 'mozinfo.json')) as info:
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config = json.loads(info.read())
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path = os.path.join(config['topsrcdir'], 'mach')
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sys.dont_write_bytecode = old_bytecode
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def _is_likely_cpp_header(filename):
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if not filename.endswith('.h'):
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return False
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if filename.endswith('Inlines.h') or filename.endswith('-inl.h'):
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return True
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cpp_file = filename[:-1] + 'cpp'
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return os.path.exists(cpp_file)
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def Settings(**kwargs):
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if kwargs[ 'language' ] == 'cfamily':
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return FlagsForFile(kwargs['filename'])
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# This is useful for generic language server protocols, like rust-analyzer,
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# to discover the right project root instead of guessing based on where the
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# closest Cargo.toml is.
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return {
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'project_directory': '.',
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}
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def FlagsForFile(filename):
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output = subprocess.check_output([path, 'compileflags', filename])
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output = output.decode('utf-8')
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flag_list = shlex.split(output)
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# This flag is added by Fennec for android build and causes ycmd to fail to parse the file.
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# Removing this flag is a workaround until ycmd starts to handle this flag properly.
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# https://github.com/Valloric/YouCompleteMe/issues/1490
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final_flags = [x for x in flag_list if not x.startswith('-march=armv')]
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if _is_likely_cpp_header(filename):
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final_flags += ["-x", "c++"]
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return {
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'flags': final_flags,
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'do_cache': True
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}
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if __name__ == '__main__':
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print(FlagsForFile(sys.argv[1]))
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