b79300bcac
In PathSearchFunc.__call__(), filename is the name of the file while filepath contains the relative path to the missing file relative to $M5_PATH. Outputing the filepath in the error message makes the error message more useful as it provides the expected location of the file as well as the name of the file. Change-Id: I5f1fdb9e48ac9ae59a26d33331a4a40bc9ff9acd Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45105 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
78 lines
3.3 KiB
Python
78 lines
3.3 KiB
Python
# Copyright (c) 2006 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import os, sys
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config_path = os.path.dirname(os.path.abspath(__file__))
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config_root = os.path.dirname(config_path)
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class PathSearchFunc(object):
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_sys_paths = None
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environment_variable = 'M5_PATH'
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def __init__(self, subdirs, sys_paths=None):
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if isinstance(subdirs, str):
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subdirs = [subdirs]
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self._subdir = os.path.join(*subdirs)
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if sys_paths:
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self._sys_paths = sys_paths
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def __call__(self, filename):
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if os.sep in filename:
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return filename
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else:
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if self._sys_paths is None:
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try:
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paths = os.environ[self.environment_variable].split(':')
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except KeyError:
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paths = [ '/dist/m5/system', '/n/poolfs/z/dist/m5/system' ]
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# expand '~' and '~user' in paths
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paths = list(map(os.path.expanduser, paths))
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# filter out non-existent directories
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paths = list(filter(os.path.isdir, paths))
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if not paths:
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raise IOError(
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"Can't find system files directory, "
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"check your {} environment variable"
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.format(self.environment_variable))
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self._sys_paths = list(paths)
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filepath = os.path.join(self._subdir, filename)
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paths = (os.path.join(p, filepath) for p in self._sys_paths)
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try:
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return next(p for p in paths if os.path.exists(p))
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except StopIteration:
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raise IOError("Can't find file '{}' on {}."
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.format(filepath, self.environment_variable))
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disk = PathSearchFunc('disks')
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binary = PathSearchFunc('binaries')
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script = PathSearchFunc('boot', sys_paths=[config_root])
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