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6b0cec1189
* Common code extracted to Python directories. * Read ~/.scons file for scons environment defaults. * Override scons settings with shell environment variables. * New "tags" for debug, nodebug, optimize, nooptimize builds. * Universal platform detection. * Default value of environment variables set through prefix dictionaries. * Check for correct Boost value and fail otherwise. * Extract git describe --tags into a preprocesor variable, -DTIP_BRANCH * More colors - blue for unchanged defaults, green for changed defaults, red for error. * Contain unit tests for non-obvious stuff. * Check to see that boost libraries have been built. * Right now, we accept both .dylib and .a versions but it'd be easy to enforce .a only.
18 lines
540 B
Python
18 lines
540 B
Python
from __future__ import absolute_import, division, print_function, unicode_literals
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def compose(*dicts):
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result = {}
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for d in dicts:
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result.update(**d)
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return result
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def get_items_with_prefix(key, mapping):
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"""Get all elements from the mapping whose keys are a prefix of the given
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key, sorted by increasing key length."""
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for k, v in sorted(mapping.items()):
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if key.startswith(k):
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yield v
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def compose_prefix_dicts(key, mapping):
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return compose(*get_items_with_prefix(key, mapping))
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