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c12e300bb8
Summary: Move top-level Python packages `mercurial`, `hgext` and `hgdemandimport` to a new top-level package `edenscm`. This allows the Python packages provided by the upstream Mercurial to be installed side-by-side. To maintain compatibility, `edenscm/` gets added to `sys.path` in `mercurial/__init__.py`. Reviewed By: phillco, ikostia Differential Revision: D13853115 fbshipit-source-id: b296b0673dc54c61ef6a591ebc687057ff53b22e
59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
# Emulating the Python interpreter
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#
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# Copyright 2018 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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# The emulated python interpreter:
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# - Can import modules (including native ones) that can be imported here.
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# - Support simple command line flags like "-m", "-c", etc.
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# - Do not go through the default entry point (mercurial.dispatch).
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# This is useful for testing when the main hg program is built into a single
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# binary that always goes through the default entry point.
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from __future__ import absolute_import
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import os
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import sys
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from . import encoding, pycompat
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if __name__ == "__main__":
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argv = sys.argv
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# PYTHONPATH is not always respected by a "python binary" wrapper.
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# Also respect HGPYTHONPATH.
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sys.path.extend(encoding.environ.get("PYTHONPATH", "").split(pycompat.ospathsep))
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sys.path[0:0] = encoding.environ.get("HGPYTHONPATH", "").split(pycompat.ospathsep)
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# Silent warnings like "ImportWarning: Not importing ..."
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import warnings
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warnings.filterwarnings("ignore")
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if len(argv) >= 2 and os.path.exists(argv[1]):
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# python FILE ...
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globalvars = globals()
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globalvars.update(
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{"__file__": os.path.realpath(argv[1]), "__name__": "__main__"}
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)
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# Make it use this script as the interpreter again
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sys.executable = argv[0]
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sys.argv = argv[1:]
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exec(open(argv[1]).read(), globalvars)
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elif len(argv) == 3 and argv[1] == "-m":
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# python -m MODULE ...
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# This includes cases like "-m heredoctest" used by run-tests.py
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__import__(argv[2])
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elif len(argv) >= 3 and argv[1] == "-c":
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# python -c COMMND ...
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content = argv[2]
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sys.argv = sys.argv[0:1] + argv[3:]
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exec(content)
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elif len(argv) == 1:
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# python << EOF
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# Read from stdin
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content = sys.stdin.read()
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exec(content)
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