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Refactor the logic to get the nbextension directory

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We do this so that check_nbextension corresponds to install_nbextension.
This commit is contained in:
Jason Grout 2015-01-22 21:18:09 +00:00
parent 6b4c986407
commit 25b475bc0a
1 changed files with 19 additions and 16 deletions
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35
IPython/html/nbextensions.py
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@ -90,17 +90,30 @@ def _safe_is_tarfile(path):
return False
def check_nbextension(files, nbextensions_dir=None):
def _get_nbext_dir(nbextensions_dir=None, user=False, prefix=None):
"""Return the nbextension directory specified"""
if sum(map(bool, [user, prefix, nbextensions_dir])) > 1:
raise ArgumentConflict("Cannot specify more than one of user, prefix, or nbextensions_dir.")
if user:
nbext = pjoin(get_ipython_dir(), u'nbextensions')
else:
if prefix:
nbext = pjoin(prefix, 'share', 'jupyter', 'nbextensions')
elif nbextensions_dir:
nbext = nbextensions_dir
else:
nbext = SYSTEM_NBEXTENSIONS_INSTALL_DIR
return nbext
def check_nbextension(files, nbextensions_dir=None, user=False, prefix=None):
"""Check whether nbextension files have been installed
files should be a list of relative paths within nbextensions.
Returns True if all files are found, False if any are missing.
"""
if nbextensions_dir:
nbext = nbextensions_dir
else:
nbext = pjoin(get_ipython_dir(), u'nbextensions')
nbext = _get_nbext_dir(nbextensions_dir, user, prefix)
# make sure nbextensions dir exists
if not os.path.exists(nbext):
return False
@ -147,17 +160,7 @@ def install_nbextension(files, overwrite=False, symlink=False, user=False, prefi
Set verbosity level. The default is 1, where file actions are printed.
set verbose=2 for more output, or verbose=0 for silence.
"""
if sum(map(bool, [user, prefix, nbextensions_dir])) > 1:
raise ArgumentConflict("Cannot specify more than one of user, prefix, or nbextensions_dir.")
if user:
nbext = pjoin(get_ipython_dir(), u'nbextensions')
else:
if prefix:
nbext = pjoin(prefix, 'share', 'jupyter', 'nbextensions')
elif nbextensions_dir:
nbext = nbextensions_dir
else:
nbext = SYSTEM_NBEXTENSIONS_INSTALL_DIR
nbext = _get_nbext_dir(nbextensions_dir, user, prefix)
# make sure nbextensions dir exists
ensure_dir_exists(nbext)