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55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
#!/usr/bin/env python
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# Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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# This script contains helper functions to work with the third_party subrepo.
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import os
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import re
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import site
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import sys
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from util import add_env_path, executable_suffix, make_env, third_party_path
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prebuilt_path = os.path.join(third_party_path, "prebuilt")
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python_packages_path = os.path.join(third_party_path, "python_packages")
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python_site_env = None
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# Creates/modifies an environment so python can find packages that are bundled
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# in the 'third_party' directory.
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def python_env(env=None, merge_env=None):
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if merge_env is None:
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merge_env = {}
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global python_site_env
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# Use site.addsitedir() to determine which search paths would be considered
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# if 'third_party/python_packages' was a site-packages directory.
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# PATH is also updated, so windows can find the DLLs that ship with pywin32.
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if python_site_env is None:
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python_site_env = {}
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temp = os.environ["PATH"], sys.path
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os.environ["PATH"], sys.path = "", []
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site.addsitedir(python_packages_path) # Modifies PATH and sys.path.
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python_site_env = {"PATH": os.environ["PATH"], "PYTHONPATH": sys.path}
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os.environ["PATH"], sys.path = temp
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# Make a new environment object.
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env = make_env(env=env, merge_env=merge_env)
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# Apply PATH and PYTHONPATH from the site-packages environment.
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add_env_path(python_site_env["PATH"], env=env, key="PATH")
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add_env_path(python_site_env["PYTHONPATH"], env=env, key="PYTHONPATH")
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return env
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def get_platform_dir_name():
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if sys.platform == "win32":
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return "win"
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elif sys.platform == "darwin":
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return "mac"
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elif sys.platform.startswith("linux"):
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return "linux64"
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def get_prebuilt_tool_path(tool):
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return os.path.join(prebuilt_path, get_platform_dir_name(),
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tool + executable_suffix)
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