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Adapt xip alias based on detected environment

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This commit is contained in:
Jamie Bliss 2017-01-27 22:21:36 -05:00
parent ebddc5c56b
commit 7b78294343
1 changed files with 18 additions and 1 deletions
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19
xonsh/aliases.py
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@ -380,6 +380,23 @@ def showcmd(args, stdin=None):
sys.displayhook(args) sys.displayhook(args)
def detect_xip_alias():
"""
Determines the correct invokation to get xonsh's pip
"""
if not getattr(sys, 'executable', None):
return lambda args, stdin=None: ("", "Sorry, unable to run pip on your system (missing sys.executable)", 1)
try:
if not os.access(os.path.dirname(sys.executable), os.W_OK):
return ['sudo', sys.executable, '-m', 'pip']
else:
return [sys.executable, '-m', 'pip']
except Exception:
# Something freaky happened, return something that'll probably work
return [sys.executable, '-m', 'pip']
def make_default_aliases(): def make_default_aliases():
"""Creates a new default aliases dictionary.""" """Creates a new default aliases dictionary."""
default_aliases = { default_aliases = {
@ -411,7 +428,7 @@ def make_default_aliases():
'which': xxw.which, 'which': xxw.which,
'xontrib': xontribs_main, 'xontrib': xontribs_main,
'completer': xca.completer_alias, 'completer': xca.completer_alias,
'xip': [sys.executable, '-m', 'pip'], 'xip': detect_xip_alias(),
} }
if ON_WINDOWS: if ON_WINDOWS:
# Borrow builtin commands from cmd.exe. # Borrow builtin commands from cmd.exe.