import sys
from pip.basecommand import Command
BASE_COMPLETION = """
# pip %(shell)s completion start%(script)s# pip %(shell)s completion end
"""
COMPLETION_SCRIPTS = {
'bash': """
_pip_completion()
{
COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \\
COMP_CWORD=$COMP_CWORD \\
PIP_AUTO_COMPLETE=1 $1 ) )
}
complete -o default -F _pip_completion pip
""", 'zsh': """
function _pip_completion {
local words cword
read -Ac words
read -cn cword
reply=( $( COMP_WORDS="$words[*]" \\
COMP_CWORD=$(( cword-1 )) \\
PIP_AUTO_COMPLETE=1 $words[1] ) )
}
compctl -K _pip_completion pip
"""}
class CompletionCommand(Command):
"""A helper command to be used for command completion."""
name = 'completion'
summary = 'A helper command to be used for command completion'
hidden = True
def __init__(self, *args, **kw):
super(CompletionCommand, self).__init__(*args, **kw)
self.parser.add_option(
'--bash', '-b',
action='store_const',
const='bash',
dest='shell',
help='Emit completion code for bash')
self.parser.add_option(
'--zsh', '-z',
action='store_const',
const='zsh',
dest='shell',
help='Emit completion code for zsh')
def run(self, options, args):
"""Prints the completion code of the given shell"""
shells = COMPLETION_SCRIPTS.keys()
shell_options = ['--' + shell for shell in sorted(shells)]
if options.shell in shells:
script = COMPLETION_SCRIPTS.get(options.shell, '')
print(BASE_COMPLETION % {'script': script, 'shell': options.shell})
else:
sys.stderr.write('ERROR: You must pass %s\n' % ' or '.join(shell_options))
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