126 lines
4.2 KiB
Python
126 lines
4.2 KiB
Python
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"""Find files and directories which IPython uses.
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"""
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import os.path
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import tempfile
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from warnings import warn
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import IPython
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from IPython.utils.importstring import import_item
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from IPython.utils.path import (
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get_home_dir,
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get_xdg_dir,
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get_xdg_cache_dir,
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compress_user,
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_writable_dir,
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ensure_dir_exists,
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)
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def get_ipython_dir() -> str:
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"""Get the IPython directory for this platform and user.
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This uses the logic in `get_home_dir` to find the home directory
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and then adds .ipython to the end of the path.
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"""
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env = os.environ
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pjoin = os.path.join
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ipdir_def = '.ipython'
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home_dir = get_home_dir()
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xdg_dir = get_xdg_dir()
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if 'IPYTHON_DIR' in env:
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warn('The environment variable IPYTHON_DIR is deprecated since IPython 3.0. '
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'Please use IPYTHONDIR instead.', DeprecationWarning)
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ipdir = env.get('IPYTHONDIR', env.get('IPYTHON_DIR', None))
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if ipdir is None:
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# not set explicitly, use ~/.ipython
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ipdir = pjoin(home_dir, ipdir_def)
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if xdg_dir:
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# Several IPython versions (up to 1.x) defaulted to .config/ipython
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# on Linux. We have decided to go back to using .ipython everywhere
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xdg_ipdir = pjoin(xdg_dir, 'ipython')
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if _writable_dir(xdg_ipdir):
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cu = compress_user
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if os.path.exists(ipdir):
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warn(('Ignoring {0} in favour of {1}. Remove {0} to '
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'get rid of this message').format(cu(xdg_ipdir), cu(ipdir)))
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elif os.path.islink(xdg_ipdir):
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warn(('{0} is deprecated. Move link to {1} to '
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'get rid of this message').format(cu(xdg_ipdir), cu(ipdir)))
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else:
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ipdir = xdg_ipdir
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ipdir = os.path.normpath(os.path.expanduser(ipdir))
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if os.path.exists(ipdir) and not _writable_dir(ipdir):
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# ipdir exists, but is not writable
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warn("IPython dir '{0}' is not a writable location,"
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" using a temp directory.".format(ipdir))
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ipdir = tempfile.mkdtemp()
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elif not os.path.exists(ipdir):
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parent = os.path.dirname(ipdir)
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if not _writable_dir(parent):
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# ipdir does not exist and parent isn't writable
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warn("IPython parent '{0}' is not a writable location,"
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" using a temp directory.".format(parent))
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ipdir = tempfile.mkdtemp()
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else:
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os.makedirs(ipdir, exist_ok=True)
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assert isinstance(ipdir, str), "all path manipulation should be str(unicode), but are not."
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return ipdir
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def get_ipython_cache_dir() -> str:
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"""Get the cache directory it is created if it does not exist."""
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xdgdir = get_xdg_cache_dir()
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if xdgdir is None:
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return get_ipython_dir()
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ipdir = os.path.join(xdgdir, "ipython")
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if not os.path.exists(ipdir) and _writable_dir(xdgdir):
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ensure_dir_exists(ipdir)
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elif not _writable_dir(xdgdir):
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return get_ipython_dir()
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return ipdir
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def get_ipython_package_dir() -> str:
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"""Get the base directory where IPython itself is installed."""
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ipdir = os.path.dirname(IPython.__file__)
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assert isinstance(ipdir, str)
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return ipdir
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def get_ipython_module_path(module_str):
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"""Find the path to an IPython module in this version of IPython.
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This will always find the version of the module that is in this importable
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IPython package. This will always return the path to the ``.py``
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version of the module.
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"""
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if module_str == 'IPython':
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return os.path.join(get_ipython_package_dir(), '__init__.py')
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mod = import_item(module_str)
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the_path = mod.__file__.replace('.pyc', '.py')
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the_path = the_path.replace('.pyo', '.py')
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return the_path
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def locate_profile(profile='default'):
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"""Find the path to the folder associated with a given profile.
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I.e. find $IPYTHONDIR/profile_whatever.
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"""
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from IPython.core.profiledir import ProfileDir, ProfileDirError
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try:
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pd = ProfileDir.find_profile_dir_by_name(get_ipython_dir(), profile)
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except ProfileDirError as e:
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# IOError makes more sense when people are expecting a path
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raise IOError("Couldn't find profile %r" % profile) from e
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return pd.location
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